C Commands

capability additional-paths

To configure BGP to advertise the capability of sending and receiving additional paths to and from the BGP peers, use the capability additional-paths command. To disable the capability additional-path, use the no form of this command.

capability additional-paths {receive | send} [disable]

Syntax Description

receive

Advertises the capability to receive additional paths from the BGP peer.

send

Advertises the capability to send additional paths to the BGP peer.

disable

(Optional) Disables the advertising capability of sending additional paths.

Command Default

None

Command Modes


neighbor address-family configuration mode

Command History

Release

Modification

6.1(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to configure BGP to advertise the capability to send and receive additional paths to the BGP peer: 

switch# configure terminal
switch(config)# router bgp 100
switch(config-router)# neighbor 10.131.31.2 remote-as 100
switch(config-router-neighbor)# address-family ipv4 unicast 
switch(config-router-neighbor-af)# capability additional-path send
switch(config-router-neighbor-af)#
switch(config-router-neighbor-af)# capability additional-paths receive
switch(config-router-neighbor-af)#

clear bgp

To clear Border Gateway Protocol (BGP) routes from the BGP table, use the clear bgp command.

clear bgp { {ipv4 | ipv6} {unicast | multicast} | all} {neighbor | * | as-number | peer-template name | prefix} [vrf vrf-name]

Syntax Description

ipv4

(Optional) Clears the BGP information for the IPv4 address family.

ipv6

(Optional) Clears the BGP information for the IPv6 address family.

unicast

Clears BGP information for the unicast address family.

multicast

Clears BGP information for the multicast address family.

all

(Optional) Clears the BGP information for all address families.

neighbor

Network address. The format is A.B.C.D for IPv4 and A:B::C:D for IPv6.

as-number

Autonomous system number. The range is from 1 to 65535.

peer-template name

Specifies a BGP peer template. The name can be any case-sensitive, alphanumeric string up to 63 characters.

prefix

A prefix from the selected address family. The format is A.B.C.D/length for IPv4 and A:B::C:D/length for IPv6.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

4.0(3)

Added support for IPv6 prefixes.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear all BGP entries: 

switch# clear bgp all *

clear bgp dampening

To clear Border Gateway Protocol (BGP) route flap dampening information, use the clear bgp dampening command.

clear bgp { {ipv4 | ipv6} {unicast | multicast} | all} dampening [neighbor | prefix] [vrf vrf-name]

Syntax Description

ipv4

(Optional) Clears BGP information for IPv4 address family.

ipv6

(Optional) Clears BGP information for IPv6 address family.

unicast

Clears BGP information for unicast address family.

multicast

Clears BGP information for multicast address family.

all

(Optional) Clears BGP information for all address families.

neighbor

Neighbor from the selected address family. The format is A.B.C.D for IPv4.

prefix

Prefix from the selected address family. The format is A.B.C.D/length for IPv4.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear BGP route flap dampening information: 

switch# clear bgp all dampening

clear bgp flap-statistics

To clear Border Gateway Protocol (BGP) route flap statistics, use the clear bgp flap-statistics command.

clear bgp flap-statistics [neighbor | prefix] [vrf vrf-name]

Syntax Description

neighbor

A neighbor from the selected address family. The format is A.B.C.D for IPv4.

prefix

A prefix from the selected address family. The format is A.B.C.D/length for IPv4.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear BGP route flap statistics: 

switch# clear bgp flap-statistics

clear bgp policy statistics aggregate-address

To clear policy statistics for the Border Gateway Protocol (BGP) topology table, use the clear bgp policy statistics aggregate address command.

clear bgp policy statistics aggregate address prefix {advertise-map | suppress-map}

Syntax Description

prefix

Summary address. The format is x.x.x.x or x.x.x.x / length. The length range is from 1 to 32.

advertise-map

Clears policy statistics for the advertise policy

suppress-map

Clears policy statistics for the suppress policy.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear policy statistics for an aggregate address: 

switch# clear bgp policy statistics aggregate-address 192.0.2.0/8

Related Commands

Command

Description

show bgp policy statistics

Displays policy statistics for bgp.

clear bgp policy statistics dampening

To clear policy statistics for the Border Gateway Protocol (BGP) dampening, use the clear bgp policy statistics dampening command.

clear bgp policy statistics dampening

Syntax Description

This command has no keywords or arguments.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear policy statistics for dampening: 

switch# clear bgp policy statistics dampening

Related Commands

Command

Description

show bgp policy statistics

Displays policy statistics for BGP.

clear bgp policy statistics neighbor

To clear policy statistics for the Border Gateway Protocol (BGP) neighbor, use the clear bgp policy statistics neighbor command.

clear bgp policy statistics neighbor prefix [default-originate | {filter-list | prefix-list | route-map} {in | out}]

Syntax Description

prefix

Neighbor address. The format is x.x.x.x.

default-originate

(Optional) Clears policy statistics for the default originate policy.

filter-list

Clears policy statistics for the neighbor filter list.

prefix-list

Clears policy statistics for the neighbor prefix list.

route-map

Clears policy statistics for the neighbor route map.

in

(Optional) Clears inbound policy statistics.

out

(Optional) Clears outbound policy statistics.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear policy statistics for an aggregate address: 

switch# clear bgp policy statistics neighbor 192.0.2.1 filter-list in

Related Commands

Command

Description

show bgp policy statistics

Displays policy statistics for BGP.

clear bgp policy statistics redistribute

To clear policy statistics for the Border Gateway Protocol (BGP) topology table, use the clear bgp policy statistics command.

clear bgp policy statistics redistribute {direct | eigrp id | isis id | ospf id | rip id | static} [vrf {vrf-name | *}]

Syntax Description

direct

Clears policy statistics for directly connected routes only.

eigrp

Clears policy statistics for EIGRP.

isis

Clears policy statistics for the Intermediate-System to Intermediate-System (IS-IS) routing protocol.

ospf

Clears policy statistics for the Open Shortest Path First (OSPF) protocol.

rip

Clears policy statistics for the Routing Information Protocol (RIP).

static

Clears policy statistics for IP static routes.

id

For the eigrp keyword, an EIGRP instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

For the isis keyword, an IS-IS instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

For the ospf keyword, an OSPF instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

vrf vrf-name|*

Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear policy statistics for RIP: 

switch# clear bgp policy statistics redistribute rip 201

Related Commands

Command

Description

show bgp policy statistics

Displays BGP policy statistics.

clear forwarding route

To clear forwarding information, use the clear forwarding route command.

clear forwarding {ip | ipv4 | ipv6} route [* | prefix] [vrf vrf-name]

Syntax Description

ip

Clears an IPv4 route.

ipv4

Clears an IPv4 route.

ipv6

Clears an IPv6 route.

*

Clears all routes.

prefix

IPv4 or IPv6 prefix. The IPv4 format is x.x.x.x/length. The IPv6 format is A:B::C:D/length.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(3)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clears a route from the FIB: 

switch# clear forwarding ip 10.0.0.1/8

clear forwarding inconsistency

To clear the Layer 3 inconsistency checker for the Forwarding Information Base (FIB), use the clear forwarding inconsistency command.

clear forwarding inconsistency [ip | ipv4 | ipv6] [unicast] [vrf vrf-name] [module {slot | all}]

Syntax Description

ip

(Optional) Specifies the inconsistency check for IPv4 routes.

ipv4

(Optional) Specifies the inconsistency check for IPv4 routes.

ipv6

(Optional) Specifies the inconsistency check for IPv6 routes.

unicast

(Optional) Specifies the inconsistency check for unicast routes.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

module

(Optional) Specifies the inconsistency check for one or more modules.

slot

Module number. The range depends on the platform.

all

(Optional) Specifies the inconsistency check for all modules.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

4.2(1)

Added support for ipv6 keyword.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the Layer 3 inconsistency checker for all modules: 

switch# clear forwarding inconsistency module all

Related Commands

Command

Description

show forwarding inconsistency

Displays information about the FIB inconsistencies.

test forwarding inconsistency

Triggers the forwarding inconsistency checker.

clear hardware ip verify

To clear IP packet verification, use the clear hardware ip verify command. To disable IP packet verification, use the no form of this command.

clear hardware ip verify {checksum | fragment | protocol | tcp tiny-frag | version}

Syntax Description

checksum

Drops IPv4 or IPv6 packets if the checksum is invalid.

fragment

Drops IPv4 or IPv6 packets if the packet fragment has a nonzero offset and the DF bit is active.

protocol

Drops IPv4 or IPv6 packets if the packet fragment has an invalid IP protocol number.

tcp tiny-frag

Drops IPv4 packets if the IP fragment offset is 1, or if the IP fragment offset is 0 and the IP payload length is less than 16.

version

Drops IPv4 packets if the EtherType is not set to 4 (IPv4).

Command Default

None

Command Modes


Global configuration

Command History

Release

Modification

4.1(3)

This command was introduced.

4.2(2)

Added protocol keyword.

Usage Guidelines

Use the clear hardware ip verify command to clear packet verification tests on IPv4 and IPv6 packets based on checksum or fragments.

This command does not require a license.

Examples

This example shows how to clear fragmented IPv4 or IPv6 packet tests: 

switch# configure terminal
switch(config)# clear hardware ip verify fragment

Related Commands

Command

Description

hardware ip verify address

Configures IPv4 and IPv6 packet verification checks based on addresses.

hardware ip verify length

Configures IPv4 packet verification checks based on length.

hardware ipv6 verify

Configures IPv6 packet verification.

show hardware forwarding ip verify

Displays information about IP packet verification checks.

clear hardware ip verify address

To clear packet verification tests on IP addresses, use the clear hardware ip verify address command. To disable packet verification tests, use the no form of this command.

clear hardware ip verify address {destination zero | identical | reserved | source {broadcast | multicast}}

Syntax Description

destination zero

Drops IP packets if the destination IPv4 address is 0.0.0.0 or if the IPv6 address is ::.

identical

Drops IP packets if the source IPv4 or IPv6 address is identical to the destination IPv4 or IPv6 address.

reserved

Drops IP packets if the IPv4 address is in the 127.x.x.x range or if the IPv6 address is in the ::1 range.

source

Drops IP packets based on the IP source address.

broadcast

Drops IP packets if the IP source address is 255.255.255.255.

multicast

Drops IP packets if the IPv4 source address is in the 224.x.x.x range or if the IPv6 source address is in the FF00::/8 range.

Command Default

None

Command Modes


Global configuration

Command History

Release

Modification

4.1(3)

This command was introduced.

Usage Guidelines

Use the clear hardware ip verify address command to clear packet verification tests on IPv4 and IPv6 packets based on addresses.

This command does not require a license.

Examples

This example shows how to clear broadcast IPv4 packet tests: 

switch# configure terminal
switch(config)# clear hardware ip verify address # source broadcast

Related Commands

Command

Description

hardware ip verify

Configures IPv4 and IPv6 packet verification checks based on checksum or fragments.

hardware ip verify length

Configures IPv4 packet verification checks based on length.

hardware ipv6 verify

Configures IPv6 packet verification.

show hardware forwarding ip verify

Displays information about IP packet verification checks.

clear hardware ip verify length

To clear IPv4 packet verification tests based on packet length, use the clear hardware ip verify length command. To disable the tests, use the no form of this command.

clear hardware ip verify length {consistent | maximum {max-frag | max-tcp | udp} | minimum}

Syntax Description

consistent

Drops IPv4 packets where the Ethernet frame size is greater than or equal to the IP packet length plus the Ethernet header.

maximum

Specifies the maximum fragment offset.

max-frag

Specifies drops to IP packets if the maximum fragment offset is greater than 65536.

max-tcp

Specifies drops to IP packets if the TCP length is greater than the IP payload length.

udp

Specifies drops to IP packets if the IP payload length is less than the UDP packet length.

minimum

Drops IP packets if the Ethernet frame length is less than the IP packet length plus four octets (the CRC length).

Command Default

None

Command Modes


Global configuration

Command History

Release

Modification

4.1(3)

This command was introduced.

Usage Guidelines

Use the clear hardware ip verify length command to clear packet verification tests on IPv4 and IPv6 packets based on packet length.

This command does not require a license.

Examples

This example shows how to clear minimum-length IPv4 packet tests: 

switch# configure terminal
switch(config)# clear hardware ip verify length minimum

Related Commands

Command

Description

hardware ip verify

Configures IPv4 packet verification checks based on checksum or fragments.

hardware ip verify address

Configures IPv4 and IPv6 packet verification checks based on addresses.

hardware ipv6 verify

Configures IPv6 packet verification.

show hardware forwarding ip verify

Displays information about IP packet verification checks.

clear hardware proxy layer-3 counters

To clear proxylayer 3 counters information, use the clear hardware proxy layer-3 counters command.

clear hardware proxy layer-3 counters

Syntax Description

This command has no arguments or keywords.

Command Default

None

Command Modes


EXEC

Command History

Release

Modification

5.1(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear brief proxy layer 3 counters information: 

switch# clear hardware proxy layer-3 counters
switch#

Related Commands

Command

Description

show hardware proxy layer-3 detail

Displays detail information on the proxylayer 3 functionality.

clear ip adjacency statistics

To clear adjacency statistics, use the clear ip adjacency statistics command.

clear ip adjacency statistics

Syntax Description

This command has no keywords or arguments.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the adjacency statistics: 

switch# clear ip adjacency statistics

Related Commands

Command

Description

show ip adjacency

Displays adjacency information.

clear ip arp

To clear the Address Resolution Protocol (ARP) information, use the clear ip arp command.

clear ip arp [ip-addr | interface] [force-delete | statistics] [vrf vrf-name]

Syntax Description

ip-addr

(Optional) IPv4 source address. The format is x.x.x.x.

interface

(Optional) Interface. Use ? to determine the supported interface types.

force-delete

(Optional) Clears the entries from the ARP table without a refresh.

statistics

(Optional) Clears ARP statistics.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

5.0(2)

Added force-delete keyword.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the ARP table: 

switch# clear ip arp

Related Commands

Command

Description

show ip arp

Displays information about ARP.

clear ip bgp

To clear Border Gateway Protocol (BGP) routes from the BGP table, use the clear ip bgp command.

clear ip bgp [ipv4 {unicast | multicast}] {neighbor | * | as-number | peer-template name | prefix} [vrf vrf-name]

Syntax Description

ipv4

(Optional) Clears BGP information for the IPv4 address family.

unicast

Clears BGP information for the unicast address family.

multicast

Clears BGP information for the multicast address family.

neighbor

Network address. The format is A.B.C.D for IPv4 and A:B::C:D for IPv6.

as-number

Autonomous system number. The range is from 1 to 65535.

peer-template name

Specifies a BGP peer template. The name can be any case-sensitive, alphanumeric string up to 63 characters.

prefix

Prefix from the selected address family. The format is A.B.C.D/length for IPv4 and A:B::C:D/length for IPv6.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear all BGP entries for the IPv4 address family: 

switch# clear ip bgp *

clear ip bgp dampening

To clear Border Gateway Protocol (BGP) route flap dampening information, use the clear ip bgp dampening command.

clear ip bgp ipv4 {unicast | multicast} dampening [neighbor | prefix] [vrf vrf-name]

Syntax Description

ipv4

(Optional) Clears BGP information for the IPv4 address family.

unicast

Clears BGP information for the unicast address family.

multicast

Clears BGP information for the multicast address family.

neighbor

Neighbor from the selected address family. The format is A.B.C.D for IPv4.

prefix

Prefix from the selected address family. The format is A.B.C.D/length for IPv4.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear BGP route flap dampening information: 

switch# clear ip bgp dampening

clear bgp flap-statistics

To clear Border Gateway Protocol (BGP) route flap statistics, use the clear bgp flap-statistics command.

clear bgp flap-statistics [neighbor | prefix] [vrf vrf-name]

Syntax Description

neighbor

A neighbor from the selected address family. The format is A.B.C.D for IPv4.

prefix

A prefix from the selected address family. The format is A.B.C.D/length for IPv4.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear BGP route flap statistics: 

switch# clear bgp flap-statistics

clear ip eigrp accounting

To clear the prefix accounting information for the Enhanced Interior Gateway Routing Protocol (EIGRP) processes, use the clear ip eigrp accounting command.

clear ip eigrp [instance-tag] accounting [vrf {vrf-name | *}]

Syntax Description

instance-tag

(Optional) Instance tag. This option is available when a virtual routing and forwarding (VRF) instance is not specified. The instance tag can be any case-sensitive, alphanumeric string up to 63 characters.

vrf vrf-name

(Optional) Specifies the name of the virtual routing and forwarding (VRF) instance. The vrf-name argument can be specified as any case-insensitive alphanumeric string up to 32 characters. The strings “default” and “all” are reserved VRF names.

vrf *

(Optional) Specifies all VRF instances.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(3)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the EIGRP accounting information: 

switch# clear ip eigrp accounting

clear ip eigrp neighbors

To remove and reestablish the Enhanced Interior Gateway Routing Protocol (EIGRP) neighbor entries from the appropriate table, use the clear ip eigrp neighbors command in EXEC mode.

clear ip eigrp [instance-tag] neighbors [* | ip-address | interface-type interface-instance] [soft] [vrf {vrf-name | *}]

Syntax Description

instance-tag

(Optional) Instance identifier. The instance-tag can be any case-sensitive, alphanumeric string up to 63 characters.

*

(Optional) Clears all neighbors.

ip-address

(Optional) Address of the neighbor.

interface-type

(Optional) Interface type. For more information, use the question mark (? ) CLI help function.

interface-instance

(Optional) Either a physical interface instance or a virtual interface instance.

Specifying these arguments removes the specified interface type from the neighbor table that all entries learned via this interface.

For more information about the interface syntax, use the question mark (? ) online help function.

soft

(Optional) Specifies soft reset for the neighbors.

vrf vrf-name | *

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

When no autonomous system number, interface, or VRF instance is specified, all EIGRP neighbor entries are cleared from the table.

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

4.0(3)

Added * and soft keywords.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear all EIGRP entries for neighbors on Ethernet interface 2/1: 

switch# clear ip eigrp vrf * neighbors ethernet 2/1

Related Commands

Command

Description

show ip eigrp interfaces

Displays information about interfaces configured for EIGRP.

show ip eigrp neighbors

Displays the neighbors discovered by EIGRP.

clear ip eigrp policy statistics redistribute

To clear policy statistics for routes redistributed into show ip rip policy statistics redistribute Enhanced Interior Gateway Routing Protocol (EIGRP) topology table, use the clear ip eigrp policy statistics redistribute command.

clear ip eigrp policy statistics redistribute {bgp id | direct | eigrp id | isis id | ospf id | rip id | static} [vrf {vrf-name | *}]

Syntax Description

bgp

Clears policy statistics for the Border Gateway Protocol (BGP).

direct

Clears policy statistics for directly connected routes only.

eigrp

Clears policy statistics for EIGRP.

isis

Clears policy statistics for the Intermediate-System to Intermediate-System (IS-IS) routing protocol.

ospf

Clears policy statistics for the Open Shortest Path First (OSPF) protocol.

rip

Clears policy statistics for the Routing Information Protocol (RIP).

static

Clears policy statistics for IP static routes.

id

For the bgp keyword, an autonomous system number. The range for 2-byte numbers is from 1 to 65535. The range for 4-byte numbers is from 1.0 to 65535.65535.

For the eigrp keyword, an EIGRP instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

For the isis keyword, an IS-IS instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

For the ospf keyword, an OSPF instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

vrf vrf-name|*

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

4.0(3)

This command was removed and replaced by the clear ip eigrp route-map statistics command.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear policy statistics for RIP: 

switch# clear ip eigrp policy statistics redistribute rip 201

Related Commands

Command

Description

show ip eigrp policy statistics

Displays policy statistics for EIGRP.

clear ip eigrp redistribution

To clear redistribution information for Enhanced Interior Gateway Routing Protocol (EIGRP), use the clear ip eigrp redistribution command.

clear ip eigrp redistribution [vrf {vrf-name | *}]

Syntax Description

vrf vrf-name |*

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.2(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear redistribution information: 

switch# clear ip eigrp redistribution

Related Commands

Command

Description

feature eigrp

Enables the EIGRP feature.

clear ip eigrp traffic

To clear the Enhanced Interior Gateway Routing Protocol (EIGRP) traffic statistics, use the clear ip eigrp traffic command.

clear ip eigrp [instance-tag] traffic [vrf {vrf-name | *}]

Syntax Description

instance-tag

(Optional) Instance of EIGRP. The instance tag can be any case-sensitive, alphanumeric string up to 63 characters.

vrf vrf-name

(Optional) Specifies the name of the virtual routing and forwarding (VRF) instance. The vrf-name argument can be specified as any case-insensitive alphanumeric string up to 32 characters. The strings “default” and “all” are reserved VRF names.

vrf *

(Optional) Specifies all VRF instances.

Command Default

This command clears information for the default VRF if no VRF is specified.

Command Modes


Any

Command History

Release

Modification

4.0(3)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the EIGRP traffic statistics: 

switch# clear ip eigrp traffic

clear ip interface statistics

To clear IP interface statistics, use the clear ip interface statistics command.

clear ip interface statistics

Syntax Description

This command has no keywords or arguments.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the IP interface statistics: 

switch# clear ip interface statistics

Related Commands

Command

Description

show ip interface

Displays IP interface information.

clear ip mbgp

To clear Multiprotocol Border Gateway Protocol (MBGP) routes from the BGP table, use the clear ip mbgp command.

clear ip mbgp {neighbor | * | as-number | peer-template name | prefix} [vrf vrf-name]

Syntax Description

neighbor

Network address. The format is A.B.C.D for IPv4.

as-number

Autonomous system number. The range is from 1 to 65535.

peer-template name

Specifies a BGP peer template. The name can be any case-sensitive, alphanumeric string up to 63 characters.

prefix

Prefix from the selected address family. The format is A.B.C.D/length for IPv4.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear all MBGP entries for the IPv4 address family: 

switch# clear ip mbgp *

clear ip mbgp dampening

To clear Multiprotocol Border Gateway Protocol (MBGP) route flap dampening information, use the clear ip mbgp dampening command.

clear ip mbgp dampening {neighbor | prefix} [vrf vrf-name]

Syntax Description

neighbor

Neighbor from the selected address family. The format is A.B.C.D for IPv4.

prefix

Prefix from the selected address family. The format is A.B.C.D/length for IPv4.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear MBGP route flap dampening information: 

switch# clear ip mbgp dampening

clear ip mbgp flap-statistics

To clear Multiprotocol Border Gateway Protocol (MBGP) route flap statistics, use the clear ip mbgp flap-statistics command.

clear ip mbgp flap-statistics {neighbor | prefix} [vrf vrf-name]

Syntax Description

neighbor

Neighbor from the selected address family. The format is A.B.C.D for IPv4.

prefix

Prefix from the selected address family. The format is A.B.C.D/length for IPv4.

vrf vrf-name

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear MBGP route flap statistics: 

switch# clear ip mbgp flap-statistics

clear ip ospf neighbor

To clear neighbor statistics and reset adjacencies for Open Shortest Path First (OSPF), use the clear ip ospf neighbor command.

clear ip ospf [instance-tag] neighbor {* | neighbor-id | interface-type number | loopback number | port-channel number} [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 20 characters.

*

Clears all neighbors.

neighbor-id

Neighbor ID (as an IP address) of the neighbor to clear.

interface-type number

Interface from which to clear all neighbors.

loopback number

Clears all neighbors on a loopback interface.

port-channel number

Clears all neighbors on a port-channel interface.

vrf vrf-name

(Optional) Specifies the name of the OSPF virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string of up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ip ospf neighbor command to clear neighbor information from the show ip ospf neighbor command. Use the instance-tag argument to clear the neighbor details from one OSPF instance. If you do not use the instance -tag argument, Cisco NX-OS clears the neighbor details from all OSPF instances. Use the show ip ospf neighbor command to find the neighbor ID.

This command requires the Enterprise Services license.

Examples

This example shows how to clear all OSPF neighbor details for neighbor 192.0.2.1 for instance tag 201: 

switch# clear ip ospf 201 neighbor 192.0.2.1

This example shows how to clear all OSPF neighbor details for all OSPF instances: 

switch# clear ip ospf neighbor *

This example shows how to clear all OSPF neighbor details for all neighbors on Ethernet interface 1/2 for OSPF instance 202: 

switch# clear ip ospf 202 neighbor ethernet 1/2

Related Commands

Command

Description

show ip ospf neighbor

Displays details for OSPF neighbors including the neighbor ID.

clear ip ospf policy statistics

To clear policy statistics for Open Shortest Path First (OSPF), use the clear ip ospf policy statistics command.

clear ip ospf [instance-tag] policy statistics {area area-id filter-list {in | out} | redistribute {bgp autonomous-system | direct | eigrp id | isis id | ospf id | rip id | static}} [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 20 characters.

area

Clears policy statistics for an area.

area-id

Area ID as an integer or IP address.

filter-list

Specifies the policy statistics for filtered prefixes between OSPF areas.

in

Filters prefixes sent into this OSPF area.

out

Filters prefixes sent from this OSPF area.

redistribution

Clears OSPF route redistribution statistics.

bgp autonomous-system

Specifies the autonomous system number for the Border Gateway Protocol. Specify the autonomous system number asx.y , where the range is from 1 to 65535 for both x and y , or as a single integer, where the range is from 1 to 65535.

direct

Specifies directly connected routes.

eigrp id

Specifies the autonomous system number for the Enhanced Interior Gateway Protocol. Specify the id argument as any case-sensitive, alphanumeric string.

isis id

Specifies the Intermediate System to Intermediate System instance. Specify the id argument as any case-sensitive, alphanumeric string.

ospf id

Specifies the Open Shortest Path First version 2 instance. Specify the id argument as any case-sensitive, alphanumeric string.

rip id

Specifies the Routing Information Protocol instance. Specify the id argument as any case-sensitive, alphanumeric string.

static

Specifies static routes.

vrf vrf-name

(Optional) Specifies the name of the OSPF virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string of up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ip ospf statistics command to learn the policy statistics shown in the show ip ospf policy statistics command. Use the instance-tag argument to clear the policy statistics from one OSPF instance. If you do not specify the instance tag.

Cisco NX-OS clears the policy statistics from all OSPF instances. Use the show ip ospf policy statistics command to to view the statistics that you are clearing.

This command requires the Enterprise Services license.

Examples

This example shows how to clear all OSPF policy statistics for area 99 inbound filtered routes for OSPF 201: 

switch# clear ip ospf 201 policy statistics area 99 filter-list in

This example shows how to clear all OSPF policy statistics for all BGP redistributed routes for OSPF 202: 

switch# clear ip ospf 202 policy statistics redistribute bgp

Related Commands

Command

Description

show ip ospf policy statistics

Displays details for OSPF policies.

clear ip ospf redistribution

To clear redistribution information for Open Shortest Path First (OSPF), use the clear ip ospf redistribution command.

clear ip ospf redistribution [vrf { vrf-name | *}]

Syntax Description

vrf vrf-name|*

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.2(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear redistribution information: 

switch# clear ip ospf redistribution

Related Commands

Command

Description

feature ospf

Enables the OSPF feature.

clear ip ospf statistics

To clear Open Shortest Path First (OSPF) event statistics, use the clear ip ospf statistics command.

clear ip ospf [instance-tag] statistics [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 20 characters.

vrf vrf-name

(Optional) Specifies the name of the OSPF virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string of up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ip ospf statistics command to clear the event statistics from one or more OSPF instances. If you do not specify the instance-tag argument, Cisco NX-OS clears statistics from all OSPF instances. Use the show ip ospf statistics command to to view the statistics that you are clearing.

This command requires the Enterprise Services license.

Examples

This example shows how to clear all OSPF event statistics: 

switch# clear ip ospf statistics

Related Commands

Command

Description

show ip ospf statistics

Displays event statistics for OSPF.

clear ip ospf traffic

To clear Open Shortest Path First (OSPF) traffic statistics, use the clear ip ospf traffic command.

clear ip ospf [instance-tag] traffic [interface] [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 20 characters.

interface

(Optional) Interface to clear traffic statistics for. Use the ? option to see the interface options.

vrf vrf-name

(Optional) Specifies the name of the OSPF virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string of up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

4.0(3)

Added interface argument.

Usage Guidelines

Use the clear ip ospf traffic command to clear the traffic statistics from one or more OSPF instances. If you do not specify the instance-tag argument, Cisco NX-OS clears traffic statistics from all OSPF instances. Use the show ip ospf traffic statistics command to to view the statistics that you are clearing.

This command requires the Enterprise Services license.

Examples

This example shows how to clear OSPF traffic statistics for OSPF 100: 

switch# clear ip ospf 100 traffic

Related Commands

Command

Description

show ip ospf traffic statistics

Displays OSPF traffic statistics.

clear ip rip policy statistics redistribute

To clear policy statistics for routes redistributed into the the Routing Information Protocol (RIP) topology table, use the clear ip rip policy statistics redistribute command in any mode.

clear ip rip policy statistics redistribute {bgp id | direct | eigrp id | isis id | ospf id | ospfv3 id | static} [vrf vrf-name]

Syntax Description

bgp

Clears policy statistics for the Border Gateway Protocol (BGP).

direct

Clears policy statistics for directly connected routes only.

eigrp

Clears policy statistics for the Enhanced Interior Gateway Routing Protocol (EIGRP).

isis

Clears policy statistics for the Intermediate-System to Intermediate-System (IS-IS) routing protocol.

ospf

Clears policy statistics for the Open Shortest Path First (OSPF) protocol.

ospfv3

Clears policy statistics for the Open Shortest Path First version 3 (OSPFv3) protocol.

static

Clears policy statistics for IP static routes.

id

For the bgp keyword, an autonomous system number. The range for 2-byte numbers is from 1 to 65535. The range for 4-byte numbers is from 1.0 to 65535.65535.

For the eigrp keyword, an EIGRP instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

For the isis keyword, an IS-IS instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it d internally as a string.

For the ospf keyword, an OSPF instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

vrf vrf-name

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. Length is up to 32 alphanumeric characters.

Command Default

This command has no default settings.

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear policy statistics for EIGRP: 

switch# clear ip rip policy statistics redistribute eigrp 201

Related Commands

Command

Description

show ip rip policy statistics

Displays policy statistics for RIP.

clear ip rip statistics

To clear the the Routing Information Protocol (RIP) statistics, use the clear ip rip statistics command in any mode.

clear ip rip statistics [interface type instance] [vrf vrf-name]

Syntax Description

interface type instance

(Optional) Specifies the interface to clear topology entries.

vrf vrf-name

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is up to 32 alphanumeric characters.

Command Default

This command has no default settings.

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear all RIP statistics: 

switch# clear ip rip statistics

Related Commands

Command

Description

show rip statistics

Displays database and interface entry information for the RIP process.

clear ip route

To clear individual routes from the unicast RIB, use the clear ip route command.

clear ip route [* | addr | prefix] [vrf vrf-name]

Syntax Description

*

(Optional) Clears all routes.

addr

(Optional) Clears this route. The format is x.x.x.x.

prefix

(Optional) Clears this prefix. The format is x.x.x.x / length.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(3)

This command was introduced.

Usage Guidelines

Use the clear ip route command to clear individual routes from the route table.


Note
The * keyword is severely disruptive to routing.

This command does not require a license.

Examples

This example shows how to clear the individual route: 

switch(config)# clear ip route 192.0.2.1

Related Commands

Command

Description

show ip route

Displays entries in the route table.

clear ip traffic

To clear IP traffic information, use the clear ip traffic command.

clear ip traffic

Syntax Description

This command has no keywords or arguments.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the IP traffic information: 

switch(config)# clear ip traffic

Related Commands

Command

Description

show ip traffic

Displays IP traffic information.

clear ip wccp

To remove Web Cache Communication Protocol (WCCP) statistics (counts) maintained on the router for a particular service, use the clear ip wccp command.

clear ip wccp [vrf vrf-name] {service-number | web-cache}

Syntax Description

vrf vrf-name

(Optional) Specifies the VRF in which the service group needs to be created. If no VRF is specified, then the service number is created in the default global VRF. The vrf-name can be any case-sensitive, alphanumeric string up to 32 characters.

service-number

Dynamic service identifier. The service-number range is from 1 to 255.

web-cache

Specifies the web-cache well-known service.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

5.2(0) to 6.1(0)

This command has been deprecated from 5.2(0) to 6.1(0) onwards.

4.2(1)

This command was introduced.

Usage Guidelines

Use the clear ip wccp command to clear the WCCP statistics.

This command does not require a license.

Examples

This example shows how to clear the WCCP statistics for the web cache service: 

switch(config)# clear ip wccp web-cache

Related Commands

Command

Description

feature wccp

Enables the WCCP feature.

ip wccp

Enables WCCP redirection for a service.

show ip wccp

Displays global statistics related to WCCP.

clear ipv6 adjacency statistics

To clear adjacency statistics, use the clear ipv6 adjacency statistics command.

clear ipv6 adjacency statistics

Syntax Description

This command has no keywords or arguments.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the adjacency statistics: 

switch# clear ipv6 adjacency statistics

Related Commands

Command

Description

show ipv6 adjacency

Displays adjacency information.

clear ipv6 eigrp accounting

To clear the prefix accounting information for the Enhanced Interior Gateway Routing Protocol (EIGRP) for IPv6 processes, use the clear ipv6 eigrp accounting command.

clear ipv6 eigrp [instance-tag] accounting [vrf {vrf-name | *}]

Syntax Description

instance-tag

(Optional) Instance tag. This option is available when a virtual routing and forwarding (VRF) instance is not specified. The instance tag can be any case-sensitive, alphanumeric string up to 63 characters.

vrf vrf-name

(Optional) Specifies the name of the virtual routing and forwarding (VRF) instance. The vrf-name argument can be specified as any case-insensitive alphanumeric string up to 32 characters. The strings “default” and “all” are reserved VRF names.

vrf *

(Optional) Specifies all VRF instances.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.1(2)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the EIGRP accounting information: 

switch# clear ipv6 eigrp accounting

clear ipv6 eigrp neighbors

To remove and reestablish the Enhanced Interior Gateway Routing Protocol (EIGRP) for IPv6 neighbor entries from the appropriate table, use the clear ipv6 eigrp neighbors command in EXEC mode.

clear ipv6 eigrp [instance-tag] neighbors [* | ipv6-address | interface-type interface-instance] [soft] [vrf {vrf-name | *}]

Syntax Description

instance-tag

(Optional) Instance identifier. The instance-tag can be any case-sensitive, alphanumeric string up to 63 characters.

*

(Optional) Clears all neighbors.

ipv6-address

(Optional) Address of the neighbor. The format is A:B::C:D.

interface-type

(Optional) Interface type. For more information, use the question mark (? ) CLI help function.

interface-instance

(Optional) Either a physical interface instance or a virtual interface instance.

Specifying these arguments removes the specified interface type from the neighbor table that all entries learned through this interface.

For more information about the interface syntax, use the question mark (? ) online help function.

soft

(Optional) Specifies a soft reset for the neighbors.

vrf vrf-name | *

(Optional) Specifies a particular VPN routing and forwarding instance (VRF) or all VRF instances. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

Clears all instances if no instance is specified. Clears the default VRF if no VRF is specified.

Command Modes


Any

Command History

Release

Modification

4.1(2)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear all EIGRP entries for neighbors on Ethernet interface 2/1: 

switch# clear ipv6 eigrp vrf * neighbors ethernet 2/1

Related Commands

Command

Description

show ipv6 eigrp interfaces

Displays information about interfaces configured for EIGRP.

show ipv6 eigrp neighbors

Displays the neighbors discovered by EIGRP.

clear ipv6 eigrp route-map statistics redistribute

To clear statistics for routes redistributed into the Enhanced Interior Gateway Routing Protocol (EIGRP) for IPv6 topology table, use the clear ipv6 eigrp route-map statistics redistribute command.

clear ipv6 eigrp route-map statistics redistribute {bgp id | direct | eigrp id | isis id | ospfv3 id | rip id | static} [vrf {vrf-name | *}]

Syntax Description

bgp

Clears policy statistics for the Border Gateway Protocol (BGP).

direct

Clears policy statistics for directly connected routes only.

eigrp

Clears policy statistics for EIGRP.

isis

Clears policy statistics for the Intermediate-System to Intermediate-System (IS-IS) routing protocol.

ospv3f

Clears policy statistics for the Open Shortest Path First (OSPF) version 3 protocol.

rip

Clears policy statistics for the Routing Information Protocol (RIP).

static

Clears policy statistics for IP static routes.

id

For the bgp keyword, the id is an autonomous system number. The range for 2-byte numbers is from 1 to 65535. The range for 4-byte numbers is from 1.0 to 65535.65535.

For the eigrp keyword, the id is an EIGRP instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

For the isis keyword, the id is an IS-IS instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

For the ospf keyword, the id is an OSPF instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

vrf vrf-name|*

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.1(2)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear policy statistics for RIP: 

switch# clear ipv6 eigrp route-map statistics redistribute rip 201

Related Commands

Command

Description

show ipv6 eigrp route-map statistics

Displays redistribution statistics for EIGRP.

clear ipv6 eigrp redistribution

To clear redistribution information for Enhanced Interior Gateway Routing Protocol (EIGRP), use the clear ipv6 eigrp redistribution command.

clear ipv6 eigrp redistribution [vrf {vrf-name | *}]

Syntax Description

vrf vrf-name|*

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.2(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear redistribution information: 

switch# clear ipv6 eigrp redistribution

Related Commands

Command

Description

feature eigrp

Enables the EIGRP feature.

clear ipv6 eigrp traffic

To clear the Enhanced Interior Gateway Routing Protocol (EIGRP) for IPv6 traffic statistics, use the clear ipv6 eigrp traffic command.

clear ipv6 eigrp [instance-tag] traffic [vrf {vrf-name | *}]

Syntax Description

instance-tag

(Optional) Instance of EIGRP. The instance tag can be any case-sensitive, alphanumeric string up to 63 characters.

vrf vrf-name

(Optional) Specifies the name of the virtual routing and forwarding (VRF) instance. The vrf-name argument can be specified as any case-insensitive alphanumeric string up to 32 characters. The strings “default” and “all” are reserved VRF names.

vrf *

(Optional) Specifies all VRF instances.

Command Default

This command clears information for the default VRF if no VRF is specified.

Command Modes


Any

Command History

Release

Modification

4.1(2)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the EIGRP traffic statistics: 

switch# clear ipv6 eigrp traffic

clear ipv6 icmp interface statistics

To clear statistics about ICMPv6, use the clear ipv6 icmp interface statistics command.

clear ipv6 icmp interface statistics [type number]

Syntax Description

type

(Optional) Interface type. Use ? to see the list of supported interfaces.

number

(Optional) Interface number. Use ? to see the range.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the ICMPv6 statistics: 

switch(config-if)# clear ipv6 icmp interface statistics

Related Commands

Command

Description

ipv6 icmp

Configures ICMPv6 on an interface.

clear ipv6 nd interface statistics

To clear information about Neighbor Discovery (ND), use the clear ipv6 nd interface statistics command.

clear ipv6 nd interface statistics [type number]

Syntax Description

type

(Optional) Interface type. Use ? to see the list of supported interfaces.

number

(Optional) Interface number. Use ? to see the range.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the ND information: 

switch(config-if)# clear ipv6 nd interface statistics

Related Commands

Command

Description

ipv6 nd

Configures ICMPv6 ND on an interface.

clear ipv6 neighbor

To clear IPv6 neighbors, use the clear ipv6 neighbor command.

clear ipv6 neighbor [type number] [force-clear] [vrf vrf-name]

Syntax Description

type

(Optional) Interface type. Use ? to see the list of supported interfaces.

number

(Optional) Interface number. Use ? to see the range.

force-clear

(Optional) Clears the IPv6 neighbor cache without a refresh.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.2(1)

Added force-clear keyword.

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ipv6 neighbor command to clear the IPv6 adjacency table.

This command does not require a license.

Examples

This example shows how to clear the IPv6 neighbors: 

switch# clear ipv6 neighbor

Related Commands

Command

Description

ipv6 nd

Configures ICMPv6 ND on an interface.

clear ipv6 route

To clear individual routes from the unicast RIB, use the clear ipv6 route command.

clear ipv6 route [* | addr | prefix] [vrf vrf-name]

Syntax Description

*

(Optional) Clears all routes.

addr

(Optional) Clears this route. The format is A:B::C:D.

prefix

(Optional) Clears this prefix. The format is A:B::C:D/length.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(3)

This command was introduced.

Usage Guidelines

Use the clear ipv6 route command to clear individual routes from the route table.


Note
The * keyword is severely disruptive to routing.

This command does not require a license.

Examples

This example shows how to clear the individual route: 

switch(config)# clear ipv6 route 2001:0DB8::/8

Related Commands

Command

Description

show ipv6 route

Displays entries in the route table.

clear ipv6 traffic

To clear IPv6 traffic information, use the clear ipv6 traffic command.

clear ipv6 traffic

Syntax Description

This command has no keywords or arguments.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the IPv6 traffic information: 

switch# configure terminal
switch(config)# clear ip traffic

Related Commands

Command

Description

show ipv6 traffic

Displays IPv6 traffic information.

clear isis adjacency

To clear adjacency information for Intermediate-System-to-Intermediate System (IS-IS), use the clear isis adjacency command.

clear isis [instance-tag] adjacency [* | interface | system-id sid] [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Name of the IS-IS instance. The name can be any case-sensitive, alphanumeric string up to 63 characters.

*

(Optional) Clears all adjacency information for all interfaces.

interface

(Optional) Interface. Use ? to determine the supported interface types.

system-idsid

(Optional) Clears the adjacency information for this system ID. The sid format is XXXX.XXXX.XXXX.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear all the adjacency information: 

switch# clear isis adjacency *

Related Commands

Command

Description

feature isis

Enables IS-IS on the router.

router isis

Enables IS-IS.

clear isis ip route-map statistics redistribute

To clear statistics for route redistribution for Intermediate-System-to-Intermediate System (IS-IS), use the clear isis ip route-map statistics redistribute command.

clear isis [instance-tag] ip route-map statistics redistribute {bgp id | direct | eigrp id | isis id | ospf id | rip id | static} [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Name of the IS-IS instance. Specify as an alphanumeric string.

bgp

Clears statistics for the Border Gateway Protocol (BGP).

direct

Clears statistics for directly connected routes only.

eigrp

Clears statistics for the Enhanced Interior Gateway Protocol (EIGRP) routing protocol.

isis

Clears statistics for the Intermediate-System to Intermediate-System (IS-IS) routing protocol.

ospf

Clears statistics for the Open Shortest Path First (OSPF) protocol.

rip

Clears statistics for the Routing Information Protocol (RIP).

static

Clears statistics for IP static routes.

id

For the bgp keyword, an autonomous system number. The range for 2-byte numbers is from 1 to 65535. The range for 4-byte numbers is from 1.0 to 65535.65535.

For the isis , eigrp , and rip keywords, an instance name from which routes are to be redistributed. The value takes the form of a string. You can enter a decimal number, but Cisco NX-OS stores it internally as a string.

vrf vrf-name

(Optional) Specifies the name of the virtual routing and forwarding (VRF) instance. The vrf-name argument can be specified as any case-insensitive alphanumeric string up to 32 characters. The strings “default” and “all” are reserved VRF names.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to display policy statistics for redistributed routes: 

switch# clear isis ip route-map statistics redistribute bgp

Related Commands

Command

Description

feature isis

Enables IS-IS on the router.

router isis

Enables IS-IS.

clear isis redistribution

To clear redistribution information for Intermediate-System-to-Intermediate System (IS-IS), use the clear isis redistribution command.

clear isis instance-tag redistribution [vrf {vrf-name | all}]

Syntax Description

instance-tag

(Optional) Name of the IS-IS instance. Specify as an alphanumeric string.

vrf vrf-name| all

(Optional) Specifies a particular virtual routing and forwarding (VRF) instance. The VRF name is an alphanumeric string of up to 32 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.2(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the redistribution information: 

switch# clear isis redistribution

Related Commands

Command

Description

feature isis

Enables the IS-IS feature.

clear isis route-map statistics distribute

To clear statistics for route distribution between level-1 and level-2 areas for Intermediate-System-to-Intermediate System (IS-IS), use the clear isis route-map statistics distribute command.

clear isis [instance-tag} [ip | ipv6] route-map statistics distribute [level-1 | level-2] into [level-1 | level-2] [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Name of the IS-IS instance. The name can be any case-sensitive, alphanumeric string up to 63 characters.

ip

(Optional) Clears statistics for IPv4.

ipv6

(Optional) Clears statistics for IPv6.

level-1

(Optional) Clears Level 1 distribution statistics.

level-2

(Optional) Clears Level 2 distribution statistics.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the distribution information: 

switch# clear isis route-map statistics distribute level-1 into level 2

Related Commands

Command

Description

feature isis

Enables IS-IS on the router.

router isis

Enables IS-IS.

clear isis statistics

To clear statistics for Intermediate-System-to-Intermediate System (IS-IS), use the clear isis statistics command.

clear isis instance-tag statistics [* | interface] [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Name of the IS-IS instance. The name can be any case-sensitive, alphanumeric string up to 63 characters.

*

(Optional) Clears the statistics for all interfaces.

interface

(Optional) Interface name and interface number. Use ? to see a list of interfaces.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the IS-IS statistics: 

switch# clear isis statistics ethernet 7/45

Related Commands

Command

Description

feature isis

Enables IS-IS on the router.

router isis

Enables IS-IS.

clear isis traffic

To clear traffic statistics for Intermediate-System-to-Intermediate System (IS-IS), use the clear isis traffic command.

clear isis [instance-tag] traffic [* | interface] [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Name of the IS-IS instance. The name can be any case-sensitive, alphanumeric string up to 63 characters.

*

(Optional) Clears the traffic statistics for all interfaces.

interface

(Optional) Interface name and interface number. Use ? to see a list of interfaces.

vrf vrf-name

(Optional) Specifies the virtual router context (VRF) name. The name can be any case-sensitive, alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to clear the traffic statistics: 

switch# clear isis traffic ethernet 7/45


IS-IS process: test1
VRF: default
IS-IS Traffic for Ethernet7/45:
%PDU        Received        Sent  RcvAuthErr OtherRcvErr  ReTransmit
LAN-IIH           0           0           0           0         n/a
P2P-IIH           0           0           0           0         n/a
CSNP              0           0           0           0         n/a
PSNP              0           0           0           0         n/a
LSP               0           0           0           0           0

Related Commands

Command

Description

feature isis

Enables IS-IS on the router.

router isis

Enables IS-IS.

clear ospfv3 neighbor

To clear neighbor statistics and reset adjacencies for Open Shortest Path First version 3 (OSPFv3), use the clear ospfv3 neighbor command.

clear ospfv3 [instance-tag] neighbor {* | neighbor-id | interface-type number | loopback number | port-channel number} [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 32 characters.

*

Clears all neighbors.

neighbor-id

Neighbor ID (as an IP address) of the neighbor to clear.

interface-type number

Interface from which to clear all neighbors.

loopback number

Clears all neighbors on a loopback interface.

port-channel number

Clears all neighbors on a port-channel interface.

vrf vrf-name

(Optional) Specifies the name of the OSPFv3 virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ospfv3 neighbor command to clear neighbor information from the show ospfv3 neighbors command. Use the instance-tag argument to clear the neighbor details from one OSPFv3 instance. If you do not use the instance-tag argument, Cisco NX-OS clears the neighbor details from all OSPFv3 instances. Use the show ospfv3 neighbors command to find the neighbor ID.

This command requires the Enterprise Services license.

Examples

This example shows how to clear all OSPFv3 neighbor details for neighbor 192.0.2.1 for instance tag 201: 

switch# clear ospfv3 201 neighbor 192.0.2.1

This example shows how to clear all OSPFv3 neighbor details for all OSPFv3 instances: 

switch# clear ospfv3 neighbor *

This example shows how to clear all OSPFv3 neighbor details for all neighbors on Ethernet interface 1/2 for OSPFv3 instance 202: 

switch# clear ospfv3 202 neighbor ethernet 1/2

Related Commands

Command

Description

show ospfv3 neighbor

Displays details for OSPFv3 neighbors including the neighbor ID.

clear ospfv3 policy statistics

To clear policy statistics for Open Shortest Path First version 3 (osPFv3), use the clear ospfv3 policy statistics command.

clear ospfv3 [instance-tag] policy statistics {area area-id filter-list {in | out} | redistribute {bgp autonomous-system | direct | eigrp id | isis id | rip id | static}} [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 32 characters.

area

Clears policy statistics for an area.

area-id

Area ID as an integer or IP address.

filter-list

Specifies the policy statistics for filtered prefixes between OSPFv3 areas.

in

Filters prefixes sent into this OSPFv3 area.

out

Filters prefixes sent from this OSPFv3 area.

redistribution

Clears OSPFv3 route redistribution statistics.

bgp autonomous-system

Specifies the autonomous system number for the Border Gateway Protocol. Specify the autonomous system number asx.y , where the range is from 1 to 65535 for both x and y , or as a single integer, where the range is from 1 to 65535.

direct

Specifies directly connected routes.

eigrp id

Specifies the EIGRP instance. Specify the id argument as any alphanumeric string.

isis id

Specifies the Intermediate System to Intermediate System instance. Specify the id argument as any alphanumeric string.

rip id

Specifies the Routing Information Protocol instance. Specify the id argument as any alphanumeric string.

static

Specifies static routes.

vrf vrf-name

(Optional) Specifies the name of the OSPFv3 virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ospfv3 statistics command to learn the policy statistics shown in the show ospfv3 policy statistics command. Use the instance-tag argument to clear the policy statistics from one OSPFv3 instance.

Cisco NX-OS clears the policy statistics from all OSPFv3 instances. Use the show ospfv3 policy statistics command to to view the statistics that you are clearing.

This command requires the Enterprise Services license.

Examples

This example shows how to clear all OSPFv3 policy statistics for area 99 inbound filtered routes for OSPFv3 201: 

switch# clear ospfv3 201 policy statistics area 99 filter-list in

This example shows how to clear all OSPFv3 policy statistics for all BGP redistributed routes for OSPFv3 202: 

switch# clear ospfv3 202 policy statistics redistribute bgp

Related Commands

Command

Description

show ospfv3 policy statistics

Displays details for OSPFv3 policies.

clear ospfv3 statistics

To clear Open Shortest Path First version 3 (OSPFv3) event statistics, use the clear ospfv3 statistics command.

clear ospfv3 [instance-tag] statistics [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 32 characters.

vrf vrf-name

(Optional) Specifies the name of the OSPFv3 virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ospfv3 statistics command to clear the event statistics from one or more OSPFv3 instances. If you do not specify the instance-tag argument, Cisco NX-OS clears statistics from all OSPFv3 instances. Use the show ospfv3 statistics command to to view the statistics that you are clearing.

This command requires the Enterprise Services license.

Examples

This example shows how to clear all OSPFv3 event statistics: 

switch# clear ospfv3 statistics

Related Commands

Command

Description

show ospfv3 statistics

Displays event statistics for OSPFv3.

clear ospfv3 traffic

To clear Open Shortest Path First version 3 (OSPFv3) traffic statistics, use the clear ospfv3 traffic command.

clear ospfv3 [instance-tag] traffic [vrf vrf-name]

Syntax Description

instance-tag

(Optional) Instance tag. Specify as an alphanumeric string of up to 32 characters.

vrf vrf-name

(Optional) Specifies the name of the OSPFv3 virtual routing and forwarding instance (VRF). The vrf-name argument can be any alphanumeric string up to 32 characters, except “default” and “all”.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear ospfv3 traffic command to clear the traffic statistics from one or more OSPFv3 instances. If you do not specify the instance-tag argument, Cisco NX-OS clears traffic statistics from all OSPFv3 instances. Use the show ospfv3 traffic statistics command to to view the statistics that you are clearing.

This command requires the Enterprise Services license.

Examples

This example shows how to clear OSPFv3 traffic statistics for OSPFv3 100: 

switch# clear ospfv3 100 traffic

Related Commands

Command

Description

show ospfv3 traffic statistics

Displays OSPFv3 traffic statistics.

clear route-map pbr-statistics

To clear policy-based statistics for a route map, use the clear route-map pbr statistics command..

clear route-map name pbr-statistics

Syntax Description

name

Name of the route map. The name can be any alphanumeric string up to 63 characters.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

Use the clear route-map pbr-statistics command to clear policy-based routing statistics enabled by the route-map pbr-statistic s command.

This command requires the Enterprise Services license.

Examples

This example shows how to clear the policy-based routing statistics for a route map: 

switch# clear route-map testmap pbr-statistics

Related Commands

Command

Description

route-map pbr-statistics

Enables policy-based routing statistics for a route map.

clear sockets statistics

To clear the socket statistics, use the clear sockets statistics command.

clear sockets statistics [all | raw | raw6 | tcp | tcp6 | udp | udp6]

Syntax Description

all

(Optional) Clears all the socket statistics.

raw

(Optional) Clears the socket statistic for the raw IPv4 protocols.

raw6

(Optional) Clears the socket statistic for the raw IPv6 protocols.

tcp

(Optional) Clears the socket statistic for the TCP IPv4 protocols.

tcp6

(Optional) Clears the socket statistic for the TCP IPv6 protocols.

udp

(Optional) Clears the socket statistic for the UDP IPv4 protocols.

udp6

(Optional) Clears the socket statistic for the UDP IPv6 protocols.

Command Default

None

Command Modes


Any command mode

Command History

Release

Modification

4.1(2)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear the TCP socket statistics: 

switch# clear sockets statistics tcp

Related Commands

Command

Description

show sockets statistics

Displays information about the socket statistics.

show sockets client

Displays information about the socket client information.

show sockets connection

Displays information about the socket connection.

clear vrrp

To clear the Virtual Router Redundancy Protocol (VRRP) statistics, use the clear vrrp command.

clear vrrp {statistics | [ipv4 | vr id] interface if-number}

Syntax Description

statistics

(Optional) Clears all VRRP statistics.

ipv4

(Optional) Clears VRRP statistics on an interface.

vr id

(Optional) Clears VRRP statistics in a VRRP group on an interface.

interface if-number

(Optional) Clears VRRP statistics on an interface. Use ? to see a list of supported interfaces.

Command Default

None

Command Modes


Any

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command does not require a license.

Examples

This example shows how to clear VRRP statistics: 

switch# configure terminal
switch(config)# clear vrrp

Related Commands

Command

Description

feature vrrp

Enables the VRRP feature.

clear vrrp

Clears VRRP statistics.

confederation

To configure the confederation parameters for the Border Gateway Protocol (BGP, use the confederation command.

confederation {identifier | peers} as-number

Syntax Description

identifier

Sets the routing domain confederation AS number.

peers

Sets the peer AS numbers for a BGP confederation.

as-number

Autonomous system number. The AS number can be a 16-bit integer or a 32-bit integer in the form of <higher 16-bit decimal number>.<lower 16-bit decimal number>.

Command Default

None

Command Modes


Router configurationRouter VRF mode

Command History

Release

Modification

4.0(1)

This command was introduced.

Usage Guidelines

This command requires the Enterprise Services license.

Examples

This example shows how to configure the confederation identifier: 

switch# configure terminal
switch(config)# router bgp 65536.33
switch(config-router)# confederation identifier 65536.33

Related Commands

Command

Description

show bgp

Displays information about BGP.