Usage Guidelines

The additional-paths install backup command enables BGP to install the backup path to the routing table. This command is required to support the BGP PIC edge active-backup path scenario.

Note	The additional-paths install backup command is supported only with IPv4 unicast address-families.

This command does not require a license.

Usage Guidelines

You can configure one virtual router IP address for a virtual router. If the configured IP address is the same as the interface IP address, this switch automatically owns the IP address. You can configure an IPv4 address only.

The master VRRP router drops the packets addressed to the virtual router's IP address because the virtual router is only intended as a next-hop router to forward packets. In NX-OS devices, some applications require that packets addressed to the virtual router's IP address be accepted and delivered. By using the secondary option to the virtual router IPv4 address, the VRRP router will accept these packets when it is the master.

This command does not require a license.

Usage Guidelines

Use the address-family command to enter various address family configuration modes while configuring BGP routing. When you enter the address-family command from router configuration mode, you enable the address family and enter global address family configuration mode. The prompt changes to switch(config-router-af)#.

You must configure the address families if you are using route redistribution, address aggregation, load balancing, and other advanced features. IPv4 neighbor sessions support IPv4 unicast and multicast address families. IPv6 neighbor sessions support IPv6 unicast and multicast address families.

Note	Beginning with Cisco NX-OS Release 6.2(8) you can configure the address-family ipv4 unicast command in an IPv6 session.

From the address family configuration mode, the following parameters are available:

Note	This applies to IPv4 multicast or unicast and IPv6 multicast or unicast.

• aggregate-address —Configures BGP aggregate prefixes. See the aggregate-address command for additional information.
• client-to-client reflection —Enables client-to-client route reflection. Route reflection allows a BGP speaker (route reflector) to advertise IBGP learned routes to certain IBGP peers. Use the no form of this command to disable client-to-client route reflection. Default: Enabled.
• dampening [half-life | route-map name ] —Configures the route flap dampening. Optionally, you can set the time (in minutes) after which a penalty is decreased. Once the route has been assigned a penalty, the penalty is decreased by half after the half-life period (which is 15 minutes by default). The process of reducing the penalty happens every 5 seconds. The default half-life is 15 minutes. Range: 1 to 45. Default: Disabled.
• default-metric metric —Sets the default flap metric of redistributed routes. The default-metric command is used to set the metric value for routes redistributed into BGP with the redistribute command. A default metric can be configured to solve the problem of redistributing routes with incompatible metrics. Assigning the default metric will allow redistribution to occur. This value is the Multi Exit Discriminator (MED) that is evaluated by BGP during the best path selection process. The MED is a non-transitive value that is processed only within the local autonomous system and adjacent autonomous systems. The default metric is not set if the received route has a MED value. Range: 0 to 4294967295.

Note	When enabled, the default-metric command applies a metric value of 0 to redistributed connected routes. The default-metric command does not override metric values that are applied with the redistribute command.

• default-originate —Originates a default toward this peer.
• distance ebgp-route ibgp-route local-route —Configures a rating of the trustworthiness of a routing information source, such as an individual router or a group of routers. BGP does not use discard routes for next-hop resolution. In general, the higher the value, the lower the trust rating. An administrative distance of 255 means the routing information source cannot be trusted at all and should be ignored. Use this command if another protocol is known to be able to provide a better route to a node than was actually learned via external BGP (eBGP), or if some internal routes should be preferred by BGP. Range: 1 to 255. Default: EBGP— 20, IBGP—200.

Caution

Changing the administrative distance of internal BGP routes is considered dangerous and is not recommended. Improper configuration can introduce routing table inconsistencies and break routing.

• exit —Exits from the current command mode.
• maximum-paths [ibgp ] parallel-paths —Configures the number of parallel paths to forward packets. The maximum-paths ibgp command is used to configure equal-cost or unequal-cost multipath load sharing for iBGP peering sessions. In order for a route to be installed as a multipath in the BGP routing table, the route cannot have a next hop that is the same as another route that is already installed. The BGP routing process will still advertise a best path to iBGP peers when iBGP multipath load sharing is configured. For equal-cost routes, the path from the neighbor with the lowest router ID is advertised as the best path. To configure equal-cost multipath load sharing, all path attributes must be the same. The path attributes include weight, local preference, autonomous system path (entire attribute and not just the length), origin code, Multi Exit Discriminator (MED), and Interior Gateway Protocol (IGP) distance. The optional ibgp keyword allows you to configure multipath for the IBGP paths. To return to the default, use the no form of this command. The range is from 1 to 16.
• network —Configures an IP prefix to advertise. See the network command for more information.
• nexthop—Enables nexthop tracking. See the nexthop route-map and nexthop trigger-delay command for more information.
• no —Negates a command or sets its defaults.
• redistribute —Enables the redistribution of routes learned by other protocols into BGP. Redistribution is supported for both IPv4 and IPv6 routes. To disable the redistribution of routes learned by other protocols into BGP, use the no form of this command.
  • direct route-map name —Specifies directly connected routes.
  • eigrp AS-num route-map name —Specifies Enhanced Interior Gateway Protocol routes. Range: 1 to 65535.
  • isis src-protocol route-map name —Specifies ISO IS-IS routes.
  • ospf src-protocol route-map name —Specifies Open Shortest Path First (OSPF) routes.
  • rip src-protocol route-map name —Specifies Routing Information Protocol (RIP) routes.
  • static route-map name —Specifies static routes.
• suppress-inactive —Advertises only active routes to peer. See the suppress-inactive command for additional information.

Use the neighbor command to enter neighbor address family configuration mode while configuring BGP routing. From the BGP neighbor configuration mode, you can perform the following actions:

• advertise-map —Specifies route-map for conditional advertisement. See the advertise-map command.
• allowas-in —Accepts as-path with my AS present in it.
• as-override —Overrides matching AS-number while sending update.
• default-originate {route-map }— Originates a default toward this peer.
• disable-peer-as-check —Disables checking of peer AS-number while advertising.
• filter-list —Applies AS-PATH filter list.
• inherit — Inherits a template.
• maximum-prefix —Specifies maximum number of prefixes from this neighbor.
• next-hop-self —Sets our peering address as nexthop.
• next-hop-third-party —Computes a third-party nexthop if possible.
• no —Negates a command or set its defaults.
• prefix-list —Applies a prefix list.
• route-map —Applies a route map to neighbor. See the route map command for more information.
• route-reflector-client —Configures a neighbor as a Route reflector client.
• send-community —Sends community attribute to this neighbor.
• soft-reconfiguration —Soft reconfiguration.
• soo —Specify site-of-origin extcommunity.

This command requires the Enterprise Services license.

Usage Guidelines

This command requires the Enterprise license.

Usage Guidelines

Use the address-family command to enter various address family configuration modes while configuring IS-IS routing. When you enter the address-family command from configuration mode, you enable the address family and enter global address family configuration mode. The prompt changes to switch(config-router-af)#.

You must configure the address families if you are using route redistribution, address aggregation, load balancing, and other advanced features. IPv4 neighbor sessions support IPv4 unicast address families.

IPv6 neighbor sessions support IPv6 unicast address familiesFrom the address family configuration mode, the following configuration modes are available:

• adjacency-check —Allows Intermediate System-to-Intermediate System (IS-IS)IPv6 or IPv4 protocol-support consistency checks to be performed on hello packets. To disable consistency checks on hello packets, use the no form of this command. Default: Enabled. IS-IS performs consistency checks on hello packets and will form an adjacency only with a neighboring router that supports the same set of protocols. A router running IS-IS for both IPv4 and IPv6 will not form an adjacency with a router running IS-IS for IPv4 only.

Use the no adjacency-check command in address-family configuration mode to suppress the consistency checks for IPv6 IS-IS and allow an IPv4 IS-IS router to form an adjacency with a router running IPv4 IS-IS and IPv6. IS-IS will never form an adjacency between a router running IPv4 IS-IS only and a router running IPv6 only.

Use the no adjacency-check configuration mode command to suppress the IPv4 subnet consistency check and allow IS-IS to form an adjacency with other routers regardless of whether or not they have an IPv4 subnet in common. By default, IS-IS makes checks in hello packets for IPv4 address subnet matching with a neighbor.

Tip	Use the debug isis adjacency packets command in privileged EXEC mode to check for adjacency errors. Error messages in the output may indicate where routers are failing to establish adjacencies.

• default-information originate [always ] [route-map name ]—Controls the origination of a default route.
  • always —(Optional) Always advertises the default route.
  • route-map name —(Optional) Specifies the name of the route-map to announce the default routes.
• distance value —Specifies the administrative distance. To return to the default distance, use the no form of this command. An administrative distance of 255 means the routing information source cannot be trusted at all and should be ignored. Range: 1 to 255. Default: 115.
• distribute {level-1 | level-2 } into {level-1 | level-2 } {all | route-map name }—Configures domain-wide prefix distribution between levels.
  • level-1 —Distributes the interarea routes into level-1 of this IS-IS instance.
  • level-2 —Distributes the interarea routes into level-2 of this IS-IS instance.
  • into —Specifies from one level to another level.
  • all —Distributes all route levels.
  • route-map name —Prevents distribution of a specific route-map.
• exit —Exits from the current command mode.
• no —Negates a command or set its defaults.
• redistribute protocol as-num . as-num ] [route-map map-tag ]—Redistributes information from another routing protocol into IS-IS. To remove the redistribute command from the configuration file and return to the default setting, use the no form of this command. Default: Software does not redistribute routes. See the redistribute (IS-IS) command for information.
• summary-address {ip-addr | ip-prefix /length | ipv6-addr | ipv6-prefix / length } level —Creates the IS-IS aggregate addresses. To remove the aggregate address, use the no form of this command. See the summary-address command for information.

This command requires the Enterprise Services license.

Usage Guidelines

This command requires the Enterprise Services license.

Usage Guidelines

This command does not require a license.

Usage Guidelines

Use the address-family ipv6 command to enter various address family configuration modes while configuring IS-IS routing. You must enter the address-family ipv6 command from router isis configuration mode. The prompt changes to switch(config-router-af)#:

switch# configure terminal
switch(config)# router isis 100
switch(config-router)# address-family ipv6
switch(config-router-af)#

You must configure the address families if you are using route redistribution, address aggregation, load balancing, and other advanced features.

From the address family configuration mode, the following configuration modes are available:

• adjacency-check —Allows protocol-support consistency checks to be performed on hello packets. Default: Enabled. IS-IS performs consistency checks on hello packets and will form an adjacency only with a neighboring router that supports the same set of protocols.

Use the no adjacency-check command in in address-family configuration mode to suppress the consistency checks for IPv6 IS-IS and allow an IPv4 IS-IS router to form an adjacency with a router running IPv4 IS-IS and IPv6. IS-IS will never form an adjacency between a router running IPv4 IS-IS only and a router running IPv6 only.

Tip	Use the debug isis adjacency packets command in privileged EXEC mode to check for adjacency errors. Error messages in the output may indicate where routers are failing to establish adjacencies.

• default-information originate [always ] [route-map name ]—Controls the origination of a default route.
  • always —(Optional) Always advertises the default route.
  • route-map name —(Optional) Specifies the name of the route-map to announce the default routes.
• distance value —Specifies the administrative distance. To return to the default distance, use the no form of this command. An administrative distance of 255 means the routing information source cannot be trusted at all and should be ignored. Range: 1 to 255. Default: 115.
• distribute {level-1 | level-2 } into {level-1 | level-2 } {all | route-map name }—Configures domain-wide prefix distribution between levels.
  • level-1 —Distributes the interarea routes into level-1 of this IS-IS instance.
  • level-2 —Distributes the interarea routes into level-2 of this IS-IS instance.
  • into —Specifies from one level to another level.
  • all —Distributes all route levels.
  • route-map name —Prevents distribution of a specific route-map.
• exit —Exits from the current command mode.
• maximum-paths —Controls the maximum number of parallel routes that an IP routing protocol can support.
• multi-topology [transition ]—Enables multitopology for IPv6.
  • transition —(Optional) Enables multitopology transition mode.
• no —Negates a command or set its defaults.
• redistribute protocol as-num . as-num ] [route-map map-tag ]—Redistributes information from another routing protocol into IS-IS. To remove the redistribute command from the configuration file and return to the default setting, use the no form of this command. Default: Software does not redistribute routes. See the redistribute (IS-IS) command for information.
• set-attached-bit —Sets the attached (ATT) bit for this IS-IS instance.
• summary-address {ip-addr | ip-prefix /length | ipv6-addr | ipv6-prefix / length } level —Creates the IS-IS aggregate addresses. To remove the aggregate address, use the no form of this command. See the summary-address command for information.

This command requires the Enterprise Services license.

Usage Guidelines

This command does not require a license.

Usage Guidelines

Use the advertise-map command to conditionally advertise selected routes. The routes or prefixes that BGP conditionally advertises are defined in two route maps, the adv-map and an exist-map or nonexist-map . The exist-map or nonexist-map specifies the prefix that the BGP tracks. The adv-map specifies the prefix that BGP advertises to the specified neighbor when the condition is met.

This command requires the Enterprise Services license.

Usage Guidelines

VRRP advertisements communicate the priority and state of the virtual router master. The advertisements are encapsulated in IP packets and are sent to the IPv4 multicast address that is assigned to the VRRP group.

VRRP uses a dedicated Internet Assigned Numbers Authority (IANA) standard multicast address (224.0.0.18) for VRRP advertisements. This addressing scheme minimizes the number of routers that must service the multicasts and allows test equipment to accurately identify VRRP packets on a segment. The IANA-assigned VRRP IP protocol number is 112.

This command does not require a license.

Usage Guidelines

You can implement aggregate routing in BGP and mBGP either by redistributing an aggregate route into BGP or mBGP, or by using the conditional aggregate routing feature.

Using the aggregate-address command with no keywords will create an aggregate entry in the BGP or mBGP routing table if any more-specific BGP or mBGP routes are available that fall within the specified range. (A longer prefix which matches the aggregate must exist in the RIB.) The aggregate route will be advertised as coming from your autonomous system and will have the atomic aggregate attribute set to show that information might be missing. (By default, the atomic aggregate attribute is set unless you specify the as-set keyword.)

Using the as-set keyword creates an aggregate entry using the same rules that the command follows without this keyword, but the path advertised for this route will be an AS_SET consisting of all elements contained in all paths that are being summarized. Do not use this form of the aggregate-address command when aggregating many paths, because this route must be continually withdrawn and updated as autonomous system path reachability information for the summarized routes changes.

Using the summary-only keyword not only creates the aggregate route (for example, 192.*.*.*) but also suppresses advertisements of more-specific routes to all neighbors. If you want to suppress only advertisements to certain neighbors, you may use the neighbor distribute-list command, with caution. If a more-specific route leaks out, all BGP or mBGP routers will prefer that route over the less-specific aggregate you are generating (using longest-match routing).

Using the suppress-map keyword creates the aggregate route but suppresses advertisement of specified routes. You can use the match clauses of route maps to selectively suppress some more-specific routes of the aggregate and leave others unsuppressed. IP access lists and autonomous system path access lists match clauses are supported.

Using the advertise-map keyword selects specific routes that will be used to build different components of the aggregate route, such as AS_SET or community. This form of the aggregate-address command is useful when the components of an aggregate are in separate autonomous systems and you want to create an aggregate with AS_SET, and advertise it back to some of the same autonomous systems. You must remember to omit the specific autonomous system numbers from the AS_SET to prevent the aggregate from being dropped by the BGP loop detection mechanism at the receiving router. IP access lists and autonomous system path access lists match clauses are supported.

Using the attribute-map keyword allows attributes of the aggregate route to be changed. This form of the aggregate-address command is useful when one of the routes forming the AS_SET is configured with an attribute such as the community no-export attribute, which would prevent the aggregate route from being exported. An attribute map route map can be created to change the aggregate attributes.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area authentication command to configure the authentication mode for the entire OSPF area.

The authentication type and authentication password must be the same for all OSPF devices in an area. Use the ip ospf authentication-key command in interface configuration mode to specify this password.

If you enable MD5 authentication with the message-digest keyword, you must configure a password with the ip ospf message-digest-key command in interface configuration mode.

This command requires the Enterprise Services license.

Usage Guidelines

Before running this command, ensure that you have enabled the authentication package with the feature imp command.

Usage Guidelines

Use the area default-cost command on an Area Border Router (ABR) attached to a stub or NSSA to configure the metric for the summary default route generated by the ABR into the stub area.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area default-cost command on an Area Border Router (ABR) attached to a stub or NSSA to configure the metric for the summary default route generated by the ABR into the stub area.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area filter-list command to filter Type 3 LSAs. If you apply the route map with the in keyword, the route map filters all Type 3 LSAs originated by the ABR to this area, including Type 3 LSAs that originated as a result of the area range command in another area.

If you apply the route map with the out keyword, the route map filters all Type 3 LSAs that are advertised by the ABR to all other areas including Type 3 LSAs that originate locally as a result of the area range command configured in this area.

Cisco NX-OS implicitly denies any prefix that does not match an entry in the route map.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area filter-list command to filter Type 3 LSAs. If you apply the route map with the in keyword, the route map filters all Type 3 LSAs originated by the ABR to this area, including Type 3 LSAs that originated as a result of the area range command in another area.

If you apply the route map with the out keyword, the route map filters all Type 3 LSAs that are advertised by the ABR to all other areas including Type 3 LSAs that originate locally as a result of the area range command configured in this area.

Cisco NX-OS implicitly denies any prefix that does not match an entry in the route map.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area nssa command to create an NSSA area in an OSPF autonomous system. We recommend that you understand the network topology before configuring forwarding address suppression for translated LSAs. Suboptimal routing might result because there might be better paths to reach the destination’s forwarding address.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area nssa command to create an NSSA area in an OSPFv3 autonomous system. We recommend that you understand the network topology before configuring forwarding address suppression for translated LSAs. Suboptimal routing might result because there might be better paths to reach the destination’s forwarding address.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area range command only with Area Border Routers (ABRs) to consolidate or summarize routes for an area. The ABR advertises that a single summary route is advertised to other areas and condenses routing information at area boundaries.

You can configure OSPF to summarize addresses for many different sets of address ranges by configuring multiple area range commands.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area range command only with Area Border Routers (ABRs) to consolidate or summarize routes for an area. The ABR advertises that a single summary route is advertised to other areas and condenses routing information at area boundaries.

You can configure OSPFv3 to summarize addresses for many different sets of address ranges by configuring multiple area range commands.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area stub command to configure all devices attached to the stub area. Use the area default-cost command on an area border router (ABR) attached to the stub area. The area default-cost command provides the metric for the summary default route generated by the ABR into the stub area.

To further reduce the number of link-state advertisements (LSAs) sent into a stub area, you can configure the no-summary keyword on the ABR to prevent it from sending Summary LSAs (Type 3 LSAs3) into the stub area.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area stub command to configure all devices attached to the stub area. Use the area default-cost command on an area border router (ABR) attached to the stub area. The area default-cost command provides the metric for the summary default route generated by the ABR into the stub area.

To further reduce the number of link-state advertisements (LSAs) sent into a stub area, you can configure the no-summary keyword on the ABR to prevent it from sending Summary LSAs (Type 3 LSAs3) into the stub area.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area virtual-link command to establish a virtual link from a remote area to the backbone area. In OSPF, all areas must be connected to a backbone area. If the connection to the backbone is lost, it can be repaired by establishing a virtual link.

Use the area virtual-link command to enter the virtual link configuration mode where you can use the following commands:

• authentication [key-chain | message-digest | null]
• authentication-key [0 | 3] key
• dead-interval seconds
• hello-interval seconds
• message-digest-key key-id md5 key
• retransmit-interval seconds
• transmit-delay seconds

See each command for syntax and usage details.

You must configure both sides of a virtual link with the same area ID and the corresponding virtual link neighbor router ID. To see the router ID, use the show ip ospf neighbors command in any mode.

This command requires the Enterprise Services license.

Usage Guidelines

Use the area virtual-link command to establish a virtual link from a remote area to the backbone area. In OSPFv3, all areas must be connected to a backbone area. If the connection to the backbone is lost, it can be repaired by establishing a virtual link.

Use the area virtual-link command to enter the virtual link configuration mode where you can use the following commands:

• dead-interval seconds
• hello-interval seconds
• retransmit-interval seconds
• transmit-delay seconds

See each command for syntax and usage details.

You must configure both sides of a virtual link with the same area ID and the corresponding virtual link neighbor router ID. To see the router ID, use the show ospfv3 neighbors command in any mode.

This command requires the Enterprise Services license.

Usage Guidelines

This command requires the Enterprise Services license.

Usage Guidelines

To ensure interoperation, you must configure the same authentication method on all the gateways that are members of the same GLBP group. A gateway ignores all GLBP messages that contain the wrong authentication information.

This command does not require a license.

Usage Guidelines

Use the authentication text command to prevent misconfigured routers from participating in HSRP groups that they are not intended to participate in. The authentication string is sent unencrypted in all HSRP messages. The same authentication string must be configured on all routers in the same group to ensure interoperation. HSRP protocol packets that do not authenticate are ignored.

Caution

If two routers are configured with identical HSRP IP addresses, but with different authentication strings, then neither router will be aware of the duplication.

This command does not require a license.

Usage Guidelines

Use the authentication command in virtual link configuration mode to configure the authentication method used on the virtual link. Use the message-diges t keyword to configure MD5 message digest authentication and use the message-digest-key command to complete this authentication configuration. Use the key-chain keyword to configure password authentication using key chains and use the key chain command to complete this authentication configuration. Use the authentication command with no keywords to configure a password for the virtual link, and use the authentication-key command to complete this authentication configuration.

This command requires the Enterprise Services license.

Usage Guidelines

This command does not require a license.

Usage Guidelines

Set the authentication mode using the authentication mode command in VRF configuration mode. You must separately configure a key chain using the key-chain command to complete the authentication configuration for an interface.

This command requires the Enterprise Services license.

Usage Guidelines

If no key chain is configured with the authentication key-chain command, no key chain authentication is performed.

Key chain authentication could apply to clear text authentication or MD5 authentication. The mode is determined by the authentication mode command.

Only one authentication key chain is applied to IS-IS at one time. For example, if you configure a second authentication key-chain command, the first authentication key chain is overridden.

You can specify authentication for an individual IS-IS interface by using the isis authentication key-chain command.

This command requires the Enterprise Services license.

Usage Guidelines

This command requires the Enterprise Services license.

Usage Guidelines

Enter the authentication-check command before configuring the authentication mode and authentication key chain. Entering the authentication-check command allows the routers to have more time for the keys to be configured on each router if authentication is inserted only on the packets being sent, not checked on packets being received. After you enter the authentication-check command on all communicating routers, enable the authentication mode and key chain on each router. Then enter the no authentication-check command to disable the command.

This command could apply to clear text authentication or Message Digest 5 (MD5) authentication. The mode is determined by the authentication mode command.

You can specify authentication for an individual IS-IS interface by using the isis authentication-check {level-1 | level-2 } interface configuration mode command.

This command requires the Enterprise Services license.

Usage Guidelines

Before running this command, ensure that you have enabled the authentication package with the feature imp command.

Usage Guidelines

Use the authentication-key command to configure the password for password authentication on an OSPF virtual link. All devices on the same virtual link must have the same password to be able to exchange OSPF information.

This command requires the Enterprise Services license.

Usage Guidelines

If you do not enter the level-1 or level-2 keywords, the mode applies to both levels.

You can specify the type of authentication and the level to which it applies for a single IS-IS interface, rather than per IS-IS instance, by using the authentication-type command.

You can specify authentication type for an individual IS-IS interface by using the isis authentication-type {cleartext | md5 } [level-1 | level-2 ] interface configuration mode command.

Usage Guidelines

Use the auto-cost command to set the reference bandwidth used by the OSPF cost-metric calculation.

The value set by the ip ospf cost command overrides the cost that results from the auto-cost command.

This command requires the Enterprise Services license.

Usage Guidelines

Use the auto-cost command to set the reference bandwidth used by the OSPFv3 cost-metric calculation.

The value set by the ipv6 ospfv3 cost command overrides the cost that results from the auto-cost command.

This command requires the Enterprise Services license.

Usage Guidelines

Use the autonomous-system command to set a common AS number for all EIGRP instances in an address family.

This command requires the Enterprise Services license.