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Catalyst 2960 Switch Software Configuration Guide, Rel. 12.2(46)SE

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

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Updated:: January 11, 2008

Chapter: Index

A - B - C - D - E - F - G - H - I - J - L - M - N - O - P - Q - R - S - T - U - V - W - X -

Index

A

abbreviating commands 4

AC (command switch) 9

access-class command 34

access control entries

access-denied response, VMPS 25

access groups, applying IPv4 ACLs to interfaces 35

accessing

clusters, switch 12

command switches 10

member switches 12

switch clusters 12

access lists

access ports

in switch clusters 8

access ports, defined 2

accounting

with 802.1x 40

with IEEE 802.1x 9

with RADIUS 28

with TACACS+ 11, 17

ACEs

and QoS 7

defined 20

Ethernet 20

IP 20

ACLs

ACEs 20

any keyword 27

applying

time ranges to 32

to an interface 34

to QoS 7

classifying traffic for QoS 40

comments in 33

compiling 35

defined 19, 23

examples of 35, 40

extended IP, configuring for QoS classification 41

extended IPv4

creating 26

matching criteria 23

hardware and software handling 35

host keyword 28

IP

creating 23

fragments and QoS guidelines 31

implicit deny 25, 29, 31

implicit masks 25

matching criteria 23

undefined 35

IPv4

applying to interfaces 34

creating 23

matching criteria 23

named 30

numbers 24

terminal lines, setting on 34

unsupported features 22

MAC extended 37, 42

matching 23, 35

monitoring 40

named, IPv4 30

number per QoS class map 31

QoS 7, 40

resequencing entries 30

standard IP, configuring for QoS classification 40

standard IPv4

creating 25

matching criteria 23

support for 9

support in hardware 35

time ranges 32

unsupported features, IPv4 22

active link 4, 5, 6

active links 2

active traffic monitoring, IP SLAs 1

address aliasing 2

addresses

displaying the MAC address table 27

dynamic

accelerated aging 8

changing the aging time 21

default aging 8

defined 19

learning 20

removing 21

IPv6 2

MAC, discovering 27

multicast, STP address management 8

static

adding and removing 24

defined 19

address resolution 27

Address Resolution Protocol

advertisements

CDP 1

LLDP 2

VTP 17, 3

aggregatable global unicast addresses 3

aggregated ports

See EtherChannel

aggregate policers 48

aggregate policing 11

aging, accelerating 8

aging time

accelerated

for MSTP 23

for STP 8, 21

MAC address table 21

maximum

for MSTP 23, 24

for STP 21, 22

alarms, RMON 3

allowed-VLAN list 19

AP1250 (Cisco wireless access point) 4

ARP

defined 5, 27

table

address resolution 27

managing 27

attributes, RADIUS

vendor-proprietary 31

vendor-specific 29

authentication

local mode with AAA 32

NTP associations 4

RADIUS

key 21

login 23

TACACS+

defined 11

key 13

login 14

See also port-based authentication

authentication failed VLAN

See restricted VLAN

authoritative time source, described 2

authorization

with RADIUS 27

with TACACS+ 11, 16

authorized ports with IEEE 802.1x 8

autoconfiguration 3

automatic discovery

considerations

beyond a noncandidate device 7

brand new switches 8

connectivity 4

different VLANs 6

management VLANs 7

non-CDP-capable devices 6

noncluster-capable devices 6

in switch clusters 4

automatic QoS

automatic recovery, clusters 9

auto-MDIX

configuring 20

described 20

autonegotiation

duplex mode 3

interface configuration guidelines 17

mismatches 11

autosensing, port speed 3

auxiliary VLAN

availability, features 6

B

BackboneFast

described 5

disabling 14

enabling 13

support for 7

backup interfaces

backup links 2

banners

configuring

login 18

message-of-the-day login 18

default configuration 17

when displayed 17

Berkeley r-tools replacement 44

binding table, DHCP snooping

See DHCP snooping binding database

blocking packets 7

booting

boot loader, function of 2

boot process 1

manually 17

specific image 18

boot loader

accessing 18

described 2

environment variables 18

prompt 18

trap-door mechanism 2

BPDU

error-disabled state 2

filtering 3

RSTP format 12

BPDU filtering

described 3

disabling 12

enabling 12

support for 7

BPDU guard

described 2

disabling 12

enabling 11

support for 7

bridge protocol data unit

broadcast storm-control command 4

broadcast storms 1

C

cables, monitoring for unidirectional links 1

candidate switch

automatic discovery 4

defined 3

requirements 3

See also command switch, cluster standby group, and member switch

CA trustpoint

configuring 40

defined 38

CDP

and trusted boundary 35

automatic discovery in switch clusters 4

configuring 2

default configuration 2

defined with LLDP 1

described 1

disabling for routing device3to 4

enabling and disabling

on an interface 4

on a switch 3

monitoring 4

overview 1

power negotiation extensions 5

support for 5

transmission timer and holdtime, setting 2

updates 2

CGMP

as IGMP snooping learning method 8

joining multicast group 3

CipherSuites 39

Cisco 7960 IP Phone 1

Cisco AP1250 wireless access point 4

Cisco Discovery Protocol

Cisco intelligent power management 5

Cisco IOS File System

Cisco IOS IP Service Level Agreements (SLAs) responder 4

Cisco IOS IP SLAs 1

CiscoWorks 2000 4

CIST regional root

CIST root

civic location 3

class maps for QoS

configuring 43

described 7

displaying 68

class of service

clearing interfaces 28

CLI

abbreviating commands 4

command modes 1

configuration logging 5

described 4

editing features

enabling and disabling 7

keystroke editing 7

wrapped lines 9

error messages 5

filtering command output 10

getting help 3

history

changing the buffer size 6

described 6

disabling 7

recalling commands 6

managing clusters 14

no and default forms of commands 4

client mode, VTP 3

clock

See system clock

clusters, switch

accessing 12

automatic discovery 4

automatic recovery 9

benefits 2

compatibility 4

described 1

LRE profile considerations 13

managing

through CLI 14

through SNMP 14

planning 4

planning considerations

automatic discovery 4

automatic recovery 9

CLI 14

host names 12

IP addresses 12

LRE profiles 13

passwords 12

RADIUS 13

SNMP 13, 14

TACACS+ 13

See also candidate switch, command switch, cluster standby group, member switch, and standby command switch

cluster standby group

automatic recovery 11

considerations 10

defined 2

requirements 3

virtual IP address 10

CNS 5

Configuration Engine

configID, deviceID, hostname 3

configuration service 2

described 1

event service 3

embedded agents

described 5

enabling automated configuration 6

enabling configuration agent 9

enabling event agent 7

management functions 5

Coarse Wave Division Multiplexer

command-line interface

command modes 1

commands

abbreviating 4

no and default 4

commands, setting privilege levels 8

command switch

accessing 10

active (AC) 9

configuration conflicts 11

defined 2

passive (PC) 9

password privilege levels 14

priority 9

recovery

from command-switch failure 9, 7

from lost member connectivity 11

redundant 9

replacing

with another switch 9

with cluster member 8

requirements 3

standby (SC) 9

See also candidate switch, cluster standby group, member switch, and standby command switch

community strings

configuring 13, 8

for cluster switches 4

in clusters 13

overview 4

SNMP 13

compatibility, feature 12

config.text 16

configurable leave timer, IGMP 5

configuration, initial

defaults 13

Express Setup 2

configuration changes, logging 10

configuration conflicts, recovering from lost member connectivity 11

configuration examples, network 16

configuration files

archiving 18

clearing the startup configuration 18

creating using a text editor 9

default name 16

deleting a stored configuration 18

described 7

downloading

automatically 16

preparing 9, 12, 15

reasons for 7

using FTP 12

using RCP 16

using TFTP 10

guidelines for creating and using 8

guidelines for replacing and rolling back 19

invalid combinations when copying 4

limiting TFTP server access 15

obtaining with DHCP 8

password recovery disable considerations 5

replacing a running configuration 18, 19

rolling back a running configuration 18, 19

specifying the filename 16

system contact and location information 15

types and location 8

uploading

preparing 9, 12, 15

reasons for 7

using FTP 13

using RCP 17

using TFTP 10

configuration logger 10

configuration logging 5

configuration replacement 18

configuration rollback 18

configuration settings, saving 14

configure terminal command 10

configuring port-based authentication violation modes 32

configuring small-frame arrival rate 5

config-vlan mode 2, 7

conflicts, configuration 11

connections, secure remote 33

connectivity problems 13, 14, 16

consistency checks in VTP Version 2 4

console port, connecting to 10

control protocol, IP SLAs 4

corrupted software, recovery steps with Xmodem 2

CoS

in Layer 2 frames 2

override priority 6

trust priority 6

CoS input queue threshold map for QoS 14

CoS output queue threshold map for QoS 17

CoS-to-DSCP map for QoS 51

counters, clearing interface 28

CPU utilization, troubleshooting 23

crashinfo file 22

critical authentication, IEEE 802.1x 43

cryptographic software image

SSH 33

SSL 37

CWDM SFPs 20

D

daylight saving time 13

debugging

enabling all system diagnostics 19

enabling for a specific feature 19

redirecting error message output 20

using commands 18

default commands 4

default configuration

802.1x 26

auto-QoS 19

banners 17

booting 16

CDP 2

DHCP 6

DHCP option 82 6

DHCP snooping 6

DHCP snooping binding database 6

DNS 16

EtherChannel 10

Ethernet interfaces 14

Flex Links 8, 9

IGMP filtering 24

IGMP snooping 6, 5, 6

IGMP throttling 24

initial switch information 3

IP SLAs 5

IPv6 7

Layer 2 interfaces 14

LLDP 3

MAC address table 20

MAC address-table move update 9

MSTP 14

MVR 19

NTP 4

optional spanning-tree configuration 9

password and privilege level 2

RADIUS 20

RMON 3

RSPAN 9

SDM template 2

SNMP 6

SPAN 9

SSL 40

standard QoS 28

STP 11

system message logging 3

system name and prompt 15

TACACS+ 13

UDLD 4

VLAN, Layer 2 Ethernet interfaces 17

VLANs 8

VMPS 26

voice VLAN 3

VTP 6

default gateway 14

default router preference

deleting VLANs 10

denial-of-service attack 1

description command 25

designing your network, examples 16

destination addresses

in IPv4 ACLs 27

destination-IP address-based forwarding, EtherChannel 8

destination-MAC address forwarding, EtherChannel 8

detecting indirect link failures, STP 5

device 22

device discovery protocol 1

device manager

benefits 2

described 2, 4

in-band management 6

upgrading a switch 22

DHCP

Cisco IOS server database

configuring 9

enabling

relay agent 7

DHCP-based autoconfiguration

client request message exchange 4

configuring

client side 3

DNS 7

relay device 7

server side 6

TFTP server 7

example 9

lease options

for IP address information 6

for receiving the configuration file 6

overview 3

relationship to BOOTP 3

relay support 5

support for 5

DHCP-based autoconfiguration and image update

configuring11to 13

understanding4to 5

DHCP binding table

See DHCP snooping binding database

DHCP option 82

circuit ID suboption 5

configuration guidelines 6

default configuration 6

displaying 10

overview 3

packet format, suboption

circuit ID 5

remote ID 5

remote ID suboption 5

DHCP server port-based address allocation

configuration guidelines 12

default configuration 12

described 11

displaying 15

enabling 12

DHCP server port-based address assignment

support for 5

DHCP snooping

accepting untrusted packets form edge switch 3, 8

configuration guidelines 6

default configuration 6

displaying binding tables 10

message exchange process 4

option 82 data insertion 3

trusted interface 2

untrusted interface 2

untrusted messages 2

DHCP snooping binding database

adding bindings 9

clearing agent statistics 10

configuring 9

default configuration 6

deleting

binding file 10

bindings 10

database agent 10

displaying 10

enabling 9

renewing database 10

resetting

delay value 10

timeout value 10

DHCP snooping binding table

See DHCP snooping binding database

DHCPv6

support for 12

Differentiated Services architecture, QoS 2

Differentiated Services Code Point 2

directed unicast requests 5

directories

changing 3

creating and removing 3

displaying the working 3

discovery, clusters

See automatic discovery

DNS

and DHCP-based autoconfiguration 7

default configuration 16

displaying the configuration 17

in IPv6 3

overview 15

setting up 16

support for 5

domain names

DNS 15

VTP 8

Domain Name System

downloading

configuration files

preparing 9, 12, 15

reasons for 7

using FTP 12

using RCP 16

using TFTP 10

image files

deleting old image 26

preparing 24, 27, 31

reasons for 22

using CMS 2

using FTP 28

using HTTP 2, 22

using RCP 32

using TFTP 24

using the device manager or Network Assistant 22

DRP

configuring 9

described 4

IPv6 4

support for 12

DSCP 11, 2

DSCP input queue threshold map for QoS 14

DSCP output queue threshold map for QoS 17

DSCP-to-CoS map for QoS 54

DSCP-to-DSCP-mutation map for QoS 55

DSCP transparency 36

DTP 8, 15

dual-action detection 5

dual IPv4 and IPv6 templates 5

dual protocol stacks

IPv4 and IPv6 5

SDM templates supporting 5

dual-purpose uplinks

defined 4

LEDs 4

link selection 4, 15

setting the type 15

dynamic access ports

characteristics 4

configuring 27

defined 3

dynamic addresses

dynamic auto trunking mode 16

dynamic desirable trunking mode 16

Dynamic Host Configuration Protocol

See DHCP-based autoconfiguration

dynamic port VLAN membership

described 25

reconfirming 28

troubleshooting 30

types of connections 27

Dynamic Trunking Protocol

E

editing features

enabling and disabling 7

keystrokes used 7

wrapped lines 9

ELIN location 3

enable password 3

enable secret password 3

encryption, CipherSuite 39

encryption for passwords 3

enhanced PoE 4, 5

environment variables, function of 19

error-disabled state, BPDU 2

error messages during command entry 5

EtherChannel

automatic creation of 4, 6

channel groups

binding physical and logical interfaces 3

numbering of 3

configuration guidelines 10

configuring Layer 2 interfaces 11

default configuration 10

described 2

displaying status 17

forwarding methods 7, 13

IEEE 802.3ad, described 6

interaction

with STP 10

with VLANs 11

LACP

described 6

displaying status 17

hot-standby ports 15

interaction with other features 7

modes 6

port priority 16

system priority 16

load balancing 7, 13

PAgP

aggregate-port learners 14

compatibility with Catalyst 1900 14

described 4

displaying status 17

interaction with other features 6

interaction with virtual switches 5

learn method and priority configuration 14

modes 5

support for 3

with dual-action detection 5

port-channel interfaces

described 3

numbering of 3

port groups 3

support for 3

EtherChannel guard

described 7

disabling 14

enabling 14

Ethernet VLANs

adding 8

defaults and ranges 8

modifying 8

EUI 3

events, RMON 3

examples

network configuration 16

expedite queue for QoS 66

Express Setup 2

See also getting started guide

extended crashinfo file 22

extended-range VLANs

configuration guidelines 13

configuring 12

creating 13

defined 1

extended system ID

MSTP 17

STP 4, 14

extended universal identifier

Extensible Authentication Protocol over LAN 1

F

fa0 interface 6

Fast Convergence 3

features, incompatible 12

fiber-optic, detecting unidirectional links 1

files

basic crashinfo

description 22

location 22

copying 4

crashinfo, description 22

deleting 4

displaying the contents of 7

extended crashinfo

description 22

location 22

tar

creating 5

displaying the contents of 5

extracting 6

image file format 23

file system

displaying available file systems 2

displaying file information 2

local file system names 1

network file system names 4

setting the default 2

filtering

non-IP traffic 37

show and more command output 10

filtering show and more command output 10

filters, IP

flash device, number of 1

Flex Link Multicast Fast Convergence 3

Flex Links

configuration guidelines 9

configuring 9, 10

configuring preferred VLAN 12

configuring VLAN load balancing 11

default configuration 8

description 2

link load balancing 2

monitoring 15

VLANs 2

flooded traffic, blocking 8

flow-based packet classification 11

flowcharts

QoS classification 6

QoS egress queueing and scheduling 16

QoS ingress queueing and scheduling 13

QoS policing and marking 10

flowcontrol

configuring 19

described 19

forward-delay time

MSTP 23

STP 21

FTP

accessing MIB files 3

configuration files

downloading 12

overview 11

preparing the server 12

uploading 13

image files

deleting old image 30

downloading 28

preparing the server 27

uploading 30

G

general query 5

Generating IGMP Reports 4

get-bulk-request operation 3

get-next-request operation 3, 4

get-request operation 3, 4

get-response operation 3

global configuration mode 2

global leave, IGMP 12

guest VLAN and 802.1x 12

guide mode 2

GUIs

See device manager and Network Assistant

H

hello time

MSTP 22

STP 20

help, for the command line 3

history

changing the buffer size 6

described 6

disabling 7

recalling commands 6

history table, level and number of syslog messages 10

host names, in clusters 12

hosts, limit on dynamic ports 30

HP OpenView 4

HSRP

automatic cluster recovery 11

cluster standby group considerations 10

See also clusters, cluster standby group, and standby command switch

HTTP over SSL

HTTPS 38

configuring 41

self-signed certificate 38

HTTP secure server 38

I

ICMP

IPv6 3

time-exceeded messages 16

traceroute and 16

ICMP ping

executing 13

overview 13

ICMPv6 3

IDS appliances

and ingress RSPAN 20

and ingress SPAN 13

IEEE 802.1D

IEEE 802.1p 1

IEEE 802.1Q

and trunk ports 3

configuration limitations 16

encapsulation 15

native VLAN for untagged traffic 20

IEEE 802.1s

IEEE 802.1w

IEEE 802.1x

See port-based authentication

IEEE 802.3ad

See EtherChannel

IEEE 802.3af

IEEE 802.3x flow control 19

ifIndex values, SNMP 5

IFS 5

IGMP

configurable leave timer

described 5

enabling 10

flooded multicast traffic

controlling the length of time 11

disabling on an interface 12

global leave 12

query solicitation 12

recovering from flood mode 12

joining multicast group 3

join messages 3

leave processing, enabling 10, 9

leaving multicast group 5

queries 4

report suppression

described 6

disabling 15, 11

supported versions 2

support for 3

IGMP filtering

configuring 24

default configuration 24

described 23

monitoring 28

support for 4

IGMP groups

configuring filtering 27

setting the maximum number 26

IGMP Immediate Leave

configuration guidelines 10

described 5

enabling 10

IGMP profile

applying 25

configuration mode 24

configuring 25

IGMP snooping

and address aliasing 2

configuring 6

default configuration 6, 5, 6

definition 1

enabling and disabling 7, 6

global configuration 7

Immediate Leave 5

method 8

monitoring 15, 11

querier

configuration guidelines 13

configuring 13

supported versions 2

support for 3

VLAN configuration 7

IGMP throttling

configuring 27

default configuration 24

described 24

displaying action 28

Immediate Leave, IGMP 5

enabling 9

inaccessible authentication bypass 14

initial configuration

defaults 13

Express Setup 2

interface

number 9

range macros 12

interface command9to 10

interface configuration mode 3

interfaces

auto-MDIX, configuring 20

configuration guidelines

duplex and speed 17

configuring

procedure 10

counters, clearing 28

default configuration 14

described 25

descriptive name, adding 25

displaying information about 27

flow control 19

management 4

monitoring 27

naming 25

physical, identifying 9

range of 10

restarting 29

shutting down 29

speed and duplex, configuring 18

status 27

supported 9

types of 1

interfaces range macro command 12

interface types 9

Internet Protocol version 6

Intrusion Detection System

See IDS appliances

inventory management TLV 2, 6

IP ACLs

for QoS classification 7

implicit deny 25, 29

implicit masks 25

named 30

undefined 35

IP addresses

128-bit 2

candidate or member 3, 12

cluster access 2

command switch 3, 10, 12

discovering 27

IPv6 2

redundant clusters 10

standby command switch 10, 12

See also IP information

ip igmp profile command 24

IP information

assigned

manually 14

through DHCP-based autoconfiguration 3

default configuration 3

IP phones

and QoS 1

automatic classification and queueing 19

configuring 4

ensuring port security with QoS 35

trusted boundary for QoS 35

IP precedence 2

IP-precedence-to-DSCP map for QoS 52

IP protocols in ACLs 27

IP Service Level Agreements

IP service levels, analyzing 1

IP SLAs

benefits 2

configuration guidelines 5

Control Protocol 4

default configuration 5

definition 1

measuring network performance 3

monitoring 6

operation 3

responder

described 4

enabling 6

response time 4

SNMP support 2

supported metrics 2

IP traceroute

executing 17

overview 16

IPv4 ACLs

applying to interfaces 34

extended, creating 26

named 30

standard, creating 25

IPv4 and IPv6

dual protocol stacks 4

IPv6

addresses 2

address formats 2

applications 4

assigning address 7

autoconfiguration 4

configuring static routes 11

default configuration 7

default router preference (DRP) 4

defined 1

forwarding 7

ICMP 3

monitoring 12

neighbor discovery 3

SDM templates 1

Stateless Autoconfiguration 4

supported features 2

understanding static routes 5

J

join messages, IGMP 3

L

LACP

See EtherChannel

Layer 2 frames, classification with CoS 2

Layer 2 interfaces, default configuration 14

Layer 2 traceroute

and ARP 15

and CDP 15

broadcast traffic 14

described 14

IP addresses and subnets 15

MAC addresses and VLANs 15

multicast traffic 15

multiple devices on a port 15

unicast traffic 14

usage guidelines 15

Layer 3 interfaces

assigning IPv6 addresses to 7

Layer 3 packets, classification methods 2

LDAP 2

Leaking IGMP Reports 4

LEDs, switch

See hardware installation guide

lightweight directory access protocol

line configuration mode 3

Link Aggregation Control Protocol

See EtherChannel

link failure, detecting unidirectional 8

Link Layer Discovery Protocol

link local unicast addresses 3

link redundancy

links, unidirectional 1

link-state tracking

configuring 20

described 18

LLDP

configuring 3

characteristics 4

default configuration 3

disabling and enabling

globally 4

on an interface 5

monitoring and maintaining 7

overview 1

supported TLVs 2

switch stack considerations 2

transmission timer and holdtime, setting 4

LLDP-MED

configuring

procedures 3

TLVs 6

monitoring and maintaining 7

overview 1, 2

supported TLVs 2

LLDP Media Endpoint Discovery

local SPAN 2

location TLV 3, 6

login authentication

with RADIUS 23

with TACACS+ 14

login banners 17

log messages

See system message logging

Long-Reach Ethernet (LRE) technology 17

loop guard

described 9

enabling 15

support for 7

LRE profiles, considerations in switch clusters 13

M

MAB inactivity timer

default setting 26

range 29

MAC/PHY configuration status TLV 2

MAC addresses

aging time 21

and VLAN association 20

building the address table 20

default configuration 20

disabling learning on a VLAN 26

discovering 27

displaying 27

dynamic

learning 20

removing 21

in ACLs 37

static

adding 24

allowing 25, 27

characteristics of 24

dropping 25

removing 24

MAC address learning 5

MAC address learning, disabling on a VLAN 26

MAC address notification, support for 13

MAC address-table move update

configuration guidelines 9

configuring 13

default configuration 9

description 7

monitoring 15

MAC address-to-VLAN mapping 25

MAC authentication bypass 11

MAC extended access lists

applying to Layer 2 interfaces 39

configuring for QoS 42

creating 37

defined 37

for QoS classification 5

macros

See Smartports macros

magic packet 17

manageability features 5

management access

in-band

browser session 6

CLI session 6

device manager 6

SNMP 6

out-of-band console port connection 6

management address TLV 2

management options

CLI 1

clustering 3

CNS 1

Network Assistant 2

overview 4

management VLAN

considerations in switch clusters 7

discovery through different management VLANs 7

mapping tables for QoS

configuring

CoS-to-DSCP 51

DSCP 50

DSCP-to-CoS 54

DSCP-to-DSCP-mutation 55

IP-precedence-to-DSCP 52

policed-DSCP 53

described 10

marking

action with aggregate policers 48

described 4, 8

matching, IPv4 ACLs 23

maximum aging time

MSTP 23

STP 21

maximum hop count, MSTP 24

maximum number of allowed devices, port-based authentication 29

MDA

configuration guidelines20to 21

described 9, 20

exceptions with authentication process 5

membership mode, VLAN port 3

member switch

automatic discovery 4

defined 2

managing 14

passwords 12

recovering from lost connectivity 11

requirements 3

See also candidate switch, cluster standby group, and standby command switch

messages, to users through banners 17

MIBs

accessing files with FTP 3

location of files 3

overview 1

SNMP interaction with 4

supported 1

mirroring traffic for analysis 1

mismatches, autonegotiation 11

module number 9

monitoring

access groups 40

cables for unidirectional links 1

CDP 4

features 13

Flex Links 15

IGMP

filters 28

snooping 15, 11

interfaces 27

IP SLAs operations 6

IPv4 ACL configuration 40

IPv6 12

MAC address-table move update 15

multicast router interfaces 16, 11

MVR 23

network traffic for analysis with probe 2

port

blocking 18

protection 18

SFP status 28, 13

speed and duplex mode 18

traffic flowing among switches 1

traffic suppression 18

VLANs 14

VMPS 29

VTP 16

mrouter Port 3

mrouter port 5

MSTP

boundary ports

configuration guidelines 15

described 6

BPDU filtering

described 3

enabling 12

BPDU guard

described 2

enabling 11

CIST, described 3

CIST regional root 3

CIST root 5

configuration guidelines 15, 10

configuring

forward-delay time 23

hello time 22

link type for rapid convergence 24

maximum aging time 23

maximum hop count 24

MST region 16

neighbor type 25

path cost 20

port priority 19

root switch 17

secondary root switch 18

switch priority 21

CST

defined 3

operations between regions 4

default configuration 14

default optional feature configuration 9

displaying status 26

enabling the mode 16

EtherChannel guard

described 7

enabling 14

extended system ID

effects on root switch 17

effects on secondary root switch 18

unexpected behavior 17

IEEE 802.1s

implementation 6

port role naming change 7

terminology 5

instances supported 9

interface state, blocking to forwarding 2

interoperability and compatibility among modes 10

interoperability with IEEE 802.1D

described 8

restarting migration process 25

IST

defined 3

master 3

operations within a region 3

loop guard

described 9

enabling 15

mapping VLANs to MST instance 16

MST region

CIST 3

configuring 16

described 2

hop-count mechanism 5

IST 3

supported spanning-tree instances 2

optional features supported 7

overview 2

Port Fast

described 2

enabling 10

preventing root switch selection 8

root guard

described 8

enabling 15

root switch

configuring 17

effects of extended system ID 17

unexpected behavior 17

shutdown Port Fast-enabled port 2

status, displaying 26

multicast groups

Immediate Leave 5

joining 3

leaving 5

static joins 9, 7

multicast router interfaces, monitoring 16, 11

multicast router ports, adding 9, 8

multicast storm 1

multicast storm-control command 4

multicast television application 17

multicast VLAN 16

Multicast VLAN Registration

multidomain authentication

MVR

and address aliasing 20

and IGMPv3 20

configuration guidelines 19

configuring interfaces 21

default configuration 19

described 16

example application 17

modes 20

monitoring 23

multicast television application 17

setting global parameters 20

support for 4

N

NAC

critical authentication 14, 43

IEEE 802.1x authentication using a RADIUS server 48

IEEE 802.1x validation using RADIUS server 48

inaccessible authentication bypass 43

Layer 2 IEEE 802.1x validation 10, 19, 48

named IPv4 ACLs 30

NameSpace Mapper

native VLAN

configuring 20

default 20

neighbor discovery, IPv6 3

Network Admission Control

Network Admission Control Software Configuration Guide 50, 51

Network Assistant

benefits 2

described 4

downloading image files 2

guide mode 2

management options 2

upgrading a switch 22

wizards 2

network configuration examples

increasing network performance 16

long-distance, high-bandwidth transport 20

providing network services 16

server aggregation and Linux server cluster 18

small to medium-sized network 19

network design

performance 16

services 16

network management

CDP 1

RMON 1

SNMP 1

network performance, measuring with IP SLAs 3

network policy TLV 2, 6

Network Time Protocol

no commands 4

nonhierarchical policy maps

described 9

non-IP traffic filtering 37

nontrunking mode 16

normal-range VLANs 4

configuration guidelines 6

configuration modes 6

configuring 4

defined 1

NSM 3

NTP

associations

authenticating 4

defined 2

enabling broadcast messages 6

peer 5

server 5

default configuration 4

displaying the configuration 11

overview 2

restricting access

creating an access group 8

disabling NTP services per interface 10

source IP address, configuring 10

stratum 2

support for 5

synchronizing devices 5

time

services 2

synchronizing 2

O

optimizing system resources 1

options, management 4

out-of-profile markdown 11

P

packet modification, with QoS 18

PAgP

See EtherChannel

passwords

default configuration 2

disabling recovery of 5

encrypting 3

for security 9

in clusters 12

overview 1

recovery of 3

setting

enable 3

enable secret 3

Telnet 6

with usernames 6

VTP domain 8

path cost

MSTP 20

STP 18

PC (passive command switch) 9

performance, network design 16

performance features 3

persistent self-signed certificate 38

per-VLAN spanning-tree plus

physical ports 2

PIM-DVMRP, as snooping method 8

ping

character output description 14

executing 13

overview 13

PoE

auto mode 6

CDP with power consumption, described 4

CDP with power negotiation, described 5

Cisco intelligent power management 5

configuring 21

cutoff power

determining 7

cutoff-power

support for 7

devices supported 4

enhanced 5

supported watts per port 4

high-power devices operating in low-power mode 5

IEEE power classification levels 5

monitoring 7

monitoring power 24

policing power consumption 24

policing power usage 7

power budgeting 22

power consumption 8, 22

powered-device detection and initial power allocation 5

power management modes 6

power monitoring 7

power negotiation extensions to CDP 5

power sensing 7

standards supported 4

static mode 6

supported watts per port 4

total available power 8

troubleshooting 11

policed-DSCP map for QoS 53

policers

configuring

for each matched traffic class 45

for more than one traffic class 48

described 4

displaying 68

number of 31

types of 9

policing

described 4

token-bucket algorithm 9

policy maps for QoS

characteristics of 45

described 7

displaying 68

nonhierarchical on physical ports

described 9

port ACLs, described 20

Port Aggregation Protocol

See EtherChannel

port-based authentication

accounting 9

authentication server

defined 3

RADIUS server 3

client, defined 3

configuration guidelines 27

configuring

802.1x authentication 32

guest VLAN 41

host mode 35

inaccessible authentication bypass 43

manual re-authentication of a client 37

periodic re-authentication 36

quiet period 37

RADIUS server 35

RADIUS server parameters on the switch 34

restricted VLAN 41

switch-to-client frame-retransmission number 38, 39

switch-to-client retransmission time 38

violation mode 17

violation modes 32

default configuration 26

described 1

device roles 3

displaying statistics 53

EAPOL-start frame 6

EAP-request/identity frame 6

EAP-response/identity frame 6

encapsulation 3

guest VLAN

configuration guidelines 13, 14

described 12

host mode 8

inaccessible authentication bypass

configuring 43

described 14

guidelines 28

initiation and message exchange 6

magic packet 17

maximum number of allowed devices per port 29

method lists 32

multiple-hosts mode, described 9

ports

authorization state and dot1x port-control command 8

authorized and unauthorized 8

critical 14

voice VLAN 16

port security

and voice VLAN 17

described 16

interactions 16

multiple-hosts mode 9

readiness check

configuring 29

described 11, 29

resetting to default values 53

statistics, displaying 53

switch

as proxy 3

RADIUS client 3

upgrading from a previous release 29

VLAN assignment

AAA authorization 33

characteristics 11

configuration tasks 12

described 11

voice aware 802.1x security

configuring 31

described 21, 30

voice VLAN

described 16

PVID 16

VVID 16

wake-on-LAN, described 17

with ACLs and RADIUS Filter-Id attribute 24

port blocking 3, 7

port-channel

See EtherChannel

port description TLV 2

Port Fast

described 2

enabling 10

mode, spanning tree 26

support for 7

port membership modes, VLAN 3

port priority

MSTP 19

STP 16

ports

access 2

blocking 7

dual-purpose uplink 4

dynamic access 4

protected 6

secure 8

static-access 3, 11

switch 2

trunks 3, 15

VLAN assignments 11

port security

aging 17

and QoS trusted boundary 35

configuring 12

default configuration 11

described 8

displaying 18

on trunk ports 14

sticky learning 9

violations 10

with other features 11

port-shutdown response, VMPS 25

port VLAN ID TLV 2

power management TLV 2, 6

Power over Ethernet

preemption, default configuration 8

preemption delay, default configuration 9

preferential treatment of traffic

preventing unauthorized access 1

primary links 2

priority

overriding CoS 6

trusting CoS 6

private VLAN edge ports

See protected ports

privileged EXEC mode 2

privilege levels

changing the default for lines 9

command switch 14

exiting 9

logging into 9

mapping on member switches 14

overview 2, 7

setting a command with 8

protected ports 9, 6

proxy reports 4

pruning, VTP

disabling

in VTP domain 14

on a port 20

enabling

in VTP domain 14

on a port 20

examples 5

overview 4

pruning-eligible list

changing 20

for VTP pruning 4

VLANs 14

PVST+

described 9

IEEE 802.1Q trunking interoperability 10

instances supported 9

Q

QoS

and MQC commands 1

auto-QoS

categorizing traffic 19

configuration and defaults display 27

configuration guidelines 24

described 19

disabling 25

displaying generated commands 25

displaying the initial configuration 27

effects on running configuration 24

egress queue defaults 20

enabling for VoIP 25

example configuration 26

ingress queue defaults 20

list of generated commands 21

basic model 4

classification

class maps, described 7

defined 4

DSCP transparency, described 36

flowchart 6

forwarding treatment 3

in frames and packets 3

IP ACLs, described 5, 7

MAC ACLs, described 5, 7

options for IP traffic 5

options for non-IP traffic 5

policy maps, described 7

trust DSCP, described 5

trusted CoS, described 5

trust IP precedence, described 5

class maps

configuring 43

displaying 68

configuration guidelines

auto-QoS 24

standard QoS 31

configuring

aggregate policers 48

auto-QoS 19

default port CoS value 34

DSCP maps 50

DSCP transparency 36

DSCP trust states bordering another domain 37

egress queue characteristics 60

ingress queue characteristics 56

IP extended ACLs 41

IP standard ACLs 40

MAC ACLs 42

port trust states within the domain 33

trusted boundary 35

default auto configuration 19

default standard configuration 28

displaying statistics 68

DSCP transparency 36

egress queues

allocating buffer space 61

buffer allocation scheme, described 16

configuring shaped weights for SRR 64

configuring shared weights for SRR 65

described 4

displaying the threshold map 64

flowchart 16

mapping DSCP or CoS values 63

scheduling, described 4

setting WTD thresholds 61

WTD, described 17

enabling globally 32

flowcharts

classification 6

egress queueing and scheduling 16

ingress queueing and scheduling 13

policing and marking 10

implicit deny 7

ingress queues

allocating bandwidth 58

allocating buffer space 58

buffer and bandwidth allocation, described 14

configuring shared weights for SRR 58

configuring the priority queue 59

described 4

displaying the threshold map 57

flowchart 13

mapping DSCP or CoS values 57

priority queue, described 14

scheduling, described 4

setting WTD thresholds 57

WTD, described 14

IP phones

automatic classification and queueing 19

detection and trusted settings 19, 35

limiting bandwidth on egress interface 67

mapping tables

CoS-to-DSCP 51

displaying 68

DSCP-to-CoS 54

DSCP-to-DSCP-mutation 55

IP-precedence-to-DSCP 52

policed-DSCP 53

types of 10

marked-down actions 47

marking, described 4, 8

overview 2

packet modification 18

policers

configuring 47, 49

described 8

displaying 68

number of 31

types of 9

policies, attaching to an interface 8

policing

described 4, 8

token bucket algorithm 9

policy maps

characteristics of 45

displaying 68

nonhierarchical on physical ports 45

QoS label, defined 4

queues

configuring egress characteristics 60

configuring ingress characteristics 56

high priority (expedite) 18, 66

location of 11

SRR, described 12

WTD, described 12

rewrites 18

support for 11

trust states

bordering another domain 37

described 5

trusted device 35

within the domain 33

quality of service

queries, IGMP 4

query solicitation, IGMP 12

R

RADIUS

attributes

vendor-proprietary 31

vendor-specific 29

configuring

accounting 28

authentication 23

authorization 27

communication, global 21, 29

communication, per-server 20, 21

multiple UDP ports 20

default configuration 20

defining AAA server groups 25

displaying the configuration 32

identifying the server 20

in clusters 13

limiting the services to the user 27

method list, defined 19

operation of 19

overview 18

suggested network environments 18

support for 10

tracking services accessed by user 28

range

macro 12

of interfaces 11

rapid convergence 10

rapid per-VLAN spanning-tree plus

See rapid PVST+

rapid PVST+

described 9

IEEE 802.1Q trunking interoperability 10

instances supported 9

Rapid Spanning Tree Protocol

rcommand command 14

RCP

configuration files

downloading 16

overview 14

preparing the server 15

uploading 17

image files

deleting old image 34

downloading 32

preparing the server 31

uploading 34

readiness check

port-based authentication

configuring 29

described 11, 29

reconfirmation interval, VMPS, changing 28

reconfirming dynamic VLAN membership 28

recovery procedures 1

redundancy

EtherChannel 3

STP

backbone 8

path cost 23

port priority 21

redundant links and UplinkFast 13

reloading software 20

Remote Authentication Dial-In User Service

Remote Copy Protocol

Remote Network Monitoring

Remote SPAN

remote SPAN 2

report suppression, IGMP

described 6

disabling 15, 11

resequencing ACL entries 30

resetting a UDLD-shutdown interface 6

responder, IP SLAs

described 4

enabling 6

response time, measuring with IP SLAs 4

restricted VLAN

configuring 41

described 13

using with IEEE 802.1x 13

restricting access

NTP services 8

overview 1

passwords and privilege levels 2

RADIUS 17

TACACS+ 10

retry count, VMPS, changing 29

RFC

1112, IP multicast and IGMP 2

1157, SNMPv1 2

1305, NTP 2

1757, RMON 2

1901, SNMPv2C 2

1902 to 1907, SNMPv2 2

2236, IP multicast and IGMP 2

2273-2275, SNMPv3 2

RMON

default configuration 3

displaying status 6

enabling alarms and events 3

groups supported 2

overview 1

statistics

collecting group Ethernet 5

collecting group history 5

support for 13

root guard

described 8

enabling 15

support for 7

root switch

MSTP 17

STP 14

RSPAN

characteristics 7

configuration guidelines 16

default configuration 9

defined 2

destination ports 6

displaying status 23

interaction with other features 8

monitored ports 5

monitoring ports 6

overview 13, 1

received traffic 4

sessions

creating 17

defined 3

limiting source traffic to specific VLANs 22

specifying monitored ports 17

with ingress traffic enabled 20

source ports 5

transmitted traffic 5

VLAN-based 6

RSTP

active topology 9

BPDU

format 12

processing 13

designated port, defined 9

designated switch, defined 9

interoperability with IEEE 802.1D

described 8

restarting migration process 25

topology changes 13

overview 8

port roles

described 9

synchronized 11

proposal-agreement handshake process 10

rapid convergence

described 10

edge ports and Port Fast 10

point-to-point links 10, 24

root ports 10

root port, defined 9

running configuration

replacing 18, 19

rolling back 18, 19

running configuration, saving 14

S

SC (standby command switch) 9

scheduled reloads 20

SCP

and SSH 44

configuring 45

SDM

described 1

templates

configuring 3

number of 1

SDM template

configuration guidelines 2

configuring 2

types of 1

Secure Copy Protocol

secure HTTP client

configuring 43

displaying 44

secure HTTP server

configuring 42

displaying 44

secure MAC addresses

deleting 16

maximum number of 9

types of 9

secure ports, configuring 8

secure remote connections 33

Secure Socket Layer

security, port 8

security features 8

sequence numbers in log messages 8

server mode, VTP 3

service-provider network, MSTP and RSTP 1

set-request operation 4

setup program

failed command switch replacement 9

replacing failed command switch 8

severity levels, defining in system messages 8

SFPs

monitoring status of 28, 13

security and identification 12

status, displaying 13

shaped round robin

show access-lists hw-summary command 35

show and more command output, filtering 10

show cdp traffic command 5

show cluster members command 14

show configuration command 25

show forward command 20

show interfaces command 18, 25

show interfaces switchport 4

show lldp traffic command 7

show platform forward command 20

show running-config command

displaying ACLs 34, 35

interface description in 25

shutdown command on interfaces 29

Simple Network Management Protocol

small-frame arrival rate, configuring 5

Smartports macros

applying Cisco-default macros 6

applying global parameter values 5, 6

applying macros 5

applying parameter values 5, 7

configuration guidelines 2

creating 4

default configuration 2

defined 1

displaying 8

tracing 3

SNAP 1

SNMP

accessing MIB variables with 4

agent

described 3

disabling 7

and IP SLAs 2

authentication level 10

community strings

configuring 8

for cluster switches 4

overview 4

configuration examples 16

default configuration 6

engine ID 7

groups 6, 9

host 6

ifIndex values 5

in-band management 6

in clusters 13

informs

and trap keyword 11

described 5

differences from traps 5

disabling 15

enabling 15

limiting access by TFTP servers 15

limiting system log messages to NMS 10

manager functions 4, 3

managing clusters with 14

MIBs

location of 3

supported 1

notifications 5

overview 1, 4

security levels 3

status, displaying 17

system contact and location 15

trap manager, configuring 13

traps

described 3, 5

differences from informs 5

disabling 15

enabling 11

enabling MAC address notification 21

overview 1, 4

types of 11

users 6, 9

versions supported 2

SNMP and Syslog Over IPv6 5

SNMPv1 2

SNMPv2C 2

SNMPv3 2

snooping, IGMP 1

software images

location in flash 22

recovery procedures 2

scheduling reloads 20

tar file format, described 23

See also downloading and uploading

source addresses

in IPv4 ACLs 27

source-and-destination-IP address based forwarding, EtherChannel 8

source-and-destination MAC address forwarding, EtherChannel 8

source-IP address based forwarding, EtherChannel 8

source-MAC address forwarding, EtherChannel 7

SPAN

configuration guidelines 10

default configuration 9

destination ports 6

displaying status 23

interaction with other features 8

monitored ports 5

monitoring ports 6

overview 13, 1

ports, restrictions 12

received traffic 4

sessions

configuring ingress forwarding 14, 21

creating 10

defined 3

limiting source traffic to specific VLANs 15

removing destination (monitoring) ports 12

specifying monitored ports 10

with ingress traffic enabled 13

source ports 5

transmitted traffic 5

VLAN-based 6

spanning tree and native VLANs 16

Spanning Tree Protocol

SPAN traffic 4

SRR

configuring

shaped weights on egress queues 64

shared weights on egress queues 65

shared weights on ingress queues 58

described 12

shaped mode 13

shared mode 13

support for 12

SSH

configuring 34

cryptographic software image 33

described 6, 33

encryption methods 34

user authentication methods, supported 34

SSL

configuration guidelines 40

configuring a secure HTTP client 43

configuring a secure HTTP server 41

cryptographic software image 37

described 37

monitoring 44

standby command switch

considerations 10

defined 2

priority 9

requirements 3

virtual IP address 10

See also cluster standby group and HSRP

standby group, cluster

See cluster standby group and HSRP

standby links 2

startup configuration

booting

manually 17

specific image 18

clearing 18

configuration file

automatically downloading 16

specifying the filename 16

default boot configuration 16

static access ports

assigning to VLAN 11

defined 3

static addresses

static MAC addressing 9

static routes

configuring for IPv6 11

understanding 5

static VLAN membership 2

statistics

802.1x 53

CDP 4

interface 28

LLDP 7

LLDP-MED 7

QoS ingress and egress 68

RMON group Ethernet 5

RMON group history 5

SNMP input and output 17

VTP 16

sticky learning 9

storm control

configuring 3

described 1

disabling 5

displaying 18

support for 3

thresholds 1

STP

accelerating root port selection 4

BackboneFast

described 5

disabling 14

enabling 13

BPDU filtering

described 3

disabling 12

enabling 12

BPDU guard

described 2

disabling 12

enabling 11

BPDU message exchange 3

configuration guidelines 12, 10

configuring

forward-delay time 21

hello time 20

maximum aging time 21

path cost 18

port priority 16

root switch 14

secondary root switch 16

spanning-tree mode 13

switch priority 19

transmit hold-count 22

counters, clearing 22

default configuration 11

default optional feature configuration 9

designated port, defined 3

designated switch, defined 3

detecting indirect link failures 5

disabling 14

displaying status 22

EtherChannel guard

described 7

disabling 14

enabling 14

extended system ID

effects on root switch 14

effects on the secondary root switch 16

overview 4

unexpected behavior 14

features supported 7

IEEE 802.1D and bridge ID 4

IEEE 802.1D and multicast addresses 8

IEEE 802.1t and VLAN identifier 4

inferior BPDU 3

instances supported 9

interface state, blocking to forwarding 2

interface states

blocking 5

disabled 7

forwarding 5, 6

learning 6

listening 6

overview 4

interoperability and compatibility among modes 10

limitations with IEEE 802.1Q trunks 10

load sharing

overview 21

using path costs 23

using port priorities 21

loop guard

described 9

enabling 15

modes supported 9

multicast addresses, effect of 8

optional features supported 7

overview 2

path costs 23

Port Fast

described 2

enabling 10

port priorities 22

preventing root switch selection 8

protocols supported 9

redundant connectivity 8

root guard

described 8

enabling 15

root port, defined 3

root switch

configuring 14

effects of extended system ID 4, 14

election 3

unexpected behavior 14

shutdown Port Fast-enabled port 2

status, displaying 22

superior BPDU 3

timers, described 20

UplinkFast

described 3

enabling 13

stratum, NTP 2

success response, VMPS 25

summer time 13

SunNet Manager 4

supported watts per port 4

switch 2

switch clustering technology 1

See also clusters, switch

switch console port 6

Switch Database Management

Switched Port Analyzer

switched ports 2

switchport backup interface 4, 5

switchport block multicast command 8

switchport block unicast command 8

switchport protected command 7

switch priority

MSTP 21

STP 19

switch software features 1

syslog

See system message logging

system capabilities TLV 2

system clock

configuring

daylight saving time 13

manually 11

summer time 13

time zones 12

displaying the time and date 12

overview 1

system description TLV 2

system message logging

default configuration 3

defining error message severity levels 8

disabling 4

displaying the configuration 14

enabling 4

facility keywords, described 14

level keywords, described 9

limiting messages 10

message format 2

overview 1

sequence numbers, enabling and disabling 8

setting the display destination device 5

synchronizing log messages 6

syslog facility 13

time stamps, enabling and disabling 7

UNIX syslog servers

configuring the daemon 12

configuring the logging facility 13

facilities supported 14

system name

default configuration 15

default setting 15

manual configuration 15

system name TLV 2

system prompt, default setting 14, 15

system resources, optimizing 1

T

TACACS+

accounting, defined 11

authentication, defined 11

authorization, defined 11

configuring

accounting 17

authentication key 13

authorization 16

login authentication 14

default configuration 13

displaying the configuration 17

identifying the server 13

in clusters 13

limiting the services to the user 16

operation of 12

overview 10

support for 10

tracking services accessed by user 17

tar files

creating 5

displaying the contents of 5

extracting 6

image file format 23

TDR 13

Telnet

accessing management interfaces 10

number of connections 6

setting a password 6

templates, SDM 1

temporary self-signed certificate 38

Terminal Access Controller Access Control System Plus

terminal lines, setting a password 6

TFTP

configuration files

downloading 10

preparing the server 9

uploading 10

configuration files in base directory 7

configuring for autoconfiguration 7

image files

deleting 26

downloading 24

preparing the server 24

uploading 26

limiting access by servers 15

TFTP server 5

threshold, traffic level 2

time

See NTP and system clock

Time Domain Reflector

time-range command 32

time ranges in ACLs 32

time stamps in log messages 7

time zones 12

TLVs

defined 2

LLDP 2

LLDP-MED 2

Token Ring VLANs

support for 5

VTP support 4

ToS 11

traceroute, Layer 2

and ARP 15

and CDP 15

broadcast traffic 14

described 14

IP addresses and subnets 15

MAC addresses and VLANs 15

multicast traffic 15

multiple devices on a port 15

unicast traffic 14

usage guidelines 15

traceroute command 17

See also IP traceroute

traffic

blocking flooded 8

fragmented 21

unfragmented 21

traffic policing 11

traffic suppression 1

transmit hold-count

transparent mode, VTP 3, 12

trap-door mechanism 2

traps

configuring MAC address notification 21

configuring managers 11

defined 3

enabling 21, 11

notification types 11

overview 1, 4

troubleshooting

connectivity problems 13, 14, 16

CPU utilization 23

detecting unidirectional links 1

displaying crash information 22

setting packet forwarding 20

SFP security and identification 12

show forward command 20

with CiscoWorks 4

with debug commands 18

with ping 13

with system message logging 1

with traceroute 16

trunk failover

See link-state tracking

trunking encapsulation 8

trunk ports

configuring 18

defined 3

trunks

allowed-VLAN list 19

load sharing

setting STP path costs 23

using STP port priorities 21, 22

native VLAN for untagged traffic 20

parallel 23

pruning-eligible list 20

to non-DTP device 15

trusted boundary for QoS 35

trusted port states

between QoS domains 37

classification options 5

ensuring port security for IP phones 35

support for 11

within a QoS domain 33

trustpoints, CA 38

twisted-pair Ethernet, detecting unidirectional links 1

type of service

U

UDLD

configuration guidelines 4

default configuration 4

disabling

globally 5

on fiber-optic interfaces 5

per interface 5

echoing detection mechanism 2

enabling

globally 5

per interface 5

link-detection mechanism 1

neighbor database 2

overview 1

resetting an interface 6

status, displaying 6

support for 6

unauthorized ports with IEEE 802.1x 8

unicast MAC address filtering 5

and adding static addresses 25

and broadcast MAC addresses 25

and CPU packets 25

and multicast addresses 25

and router MAC addresses 25

configuration guidelines 25

described 25

unicast storm 1

unicast storm control command 4

unicast traffic, blocking 8

UniDirectional Link Detection protocol

UNIX syslog servers

daemon configuration 12

facilities supported 14

message logging configuration 13

unrecognized Type-Length-Value (TLV) support 4

upgrading a Catalyst 2950 switch

configuration compatibility issues 1

differences in configuration commands 1

feature behavior incompatibilities 5

incompatible command messages 1

recommendations 1

upgrading software images

See downloading

UplinkFast

described 3

disabling 13

enabling 13

support for 7

uploading

configuration files

preparing 9, 12, 15

reasons for 7

using FTP 13

using RCP 17

using TFTP 10

image files

preparing 24, 27, 31

reasons for 22

using FTP 30

using RCP 34

using TFTP 26

user EXEC mode 2

username-based authentication 6

V

version-dependent transparent mode 4

virtual IP address

cluster standby group 10

command switch 10

virtual switches and PAgP 5

vlan.dat file 4

VLAN 1, disabling on a trunk port 19

VLAN 1 minimization 19

vlan-assignment response, VMPS 25

VLAN configuration

at bootup 7

saving 7

VLAN configuration mode 2, 7

VLAN database

and startup configuration file 7

and VTP 1

VLAN configuration saved in 7

VLANs saved in 4

vlan database command 7

VLAN filtering and SPAN 6

vlan global configuration command 7

VLAN ID, discovering 27

VLAN load balancing on flex links 2

configuration guidelines 9

VLAN management domain 2

VLAN Management Policy Server

VLAN membership

confirming 28

modes 3

VLAN Query Protocol

VLANs

adding 8

adding to VLAN database 8

aging dynamic addresses 9

allowed on trunk 19

and spanning-tree instances 3, 6, 13

configuration guidelines, extended-range VLANs 13

configuration guidelines, normal-range VLANs 6

configuration options 6

configuring 1

configuring IDs 1006 to 4094 13

creating in config-vlan mode 9

creating in VLAN configuration mode 10

default configuration 8

deleting 10

described 2, 1

displaying 14

extended-range 1, 12

features 8

illustrated 2

limiting source traffic with RSPAN 22

limiting source traffic with SPAN 15

modifying 8

multicast 16

native, configuring 20

normal-range 1, 4

number supported 8

parameters 5

port membership modes 3

static-access ports 11

STP and IEEE 802.1Q trunks 10

supported 2

Token Ring 5

traffic between 2

VTP modes 3

VLAN Trunking Protocol

VLAN trunks 15

VMPS

administering 29

configuration example 30

configuration guidelines 26

default configuration 26

description 24

dynamic port membership

described 25

reconfirming 28

troubleshooting 30

entering server address 27

mapping MAC addresses to VLANs 25

monitoring 29

reconfirmation interval, changing 28

reconfirming membership 28

retry count, changing 29

voice aware 802.1x security

port-based authentication

configuring 31

described 21, 30

voice-over-IP 1

voice VLAN

Cisco 7960 phone, port connections 1

configuration guidelines 3

configuring IP phones for data traffic

override CoS of incoming frame 6

trust CoS priority of incoming frame 6

configuring ports for voice traffic in

802.1p priority tagged frames 5

802.1Q frames 5

connecting to an IP phone 4

default configuration 3

described 1

displaying 7

IP phone data traffic, described 2

IP phone voice traffic, described 2

VQP 8, 24

VTP

adding a client to a domain 14

advertisements 17, 3

and extended-range VLANs 2

and normal-range VLANs 2

client mode, configuring 11

configuration

global configuration mode 7

guidelines 8

privileged EXEC mode 7

requirements 9

saving 7

VLAN configuration mode 7

configuration mode options 7

configuration requirements 9

configuration revision number

guideline 14

resetting 15

configuring

client mode 11

server mode 9

transparent mode 12

consistency checks 4

default configuration 6

described 1

disabling 12

domain names 8

domains 2

modes

client 3, 11

server 3, 9

transitions 3

transparent 3, 12

monitoring 16

passwords 8

pruning

disabling 14

enabling 14

examples 5

overview 4

support for 8

pruning-eligible list, changing 20

server mode, configuring 9

statistics 16

support for 8

Token Ring support 4

transparent mode, configuring 12

using 1

version, guidelines 8

Version 1 4

Version 2

configuration guidelines 8

disabling 13

enabling 13

overview 4

W

web authentication 11

configuring49to 51, 52to ??

described 8, 21

fallback for IEEE 802.1x 50

weighted tail drop

wireless access point, Cisco AP1250 4

wizards 2

WTD

described 12

setting thresholds

egress queue-sets 61

ingress queues 57

support for 12

X

Xmodem protocol 2

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