Table Of Contents

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

index

Numerics

10/100 port speed, setting 4-5

802.1Q

example 11-8, 11-18

mapping VLANs to ISL 10-5

overview 11-1

restrictions 11-4

supported switches (table) 11-4

802.1x authentication

configurable parameters 27-9

overview 27-7

A

accelerator module, switch fabric

See switch fabric accelerator module

accounting

configuration guidelines 27-60

disabling 27-62

enabling 27-60

overview 27-57

See Radius accounting; TACACS+ accounting

acronymsA-1to A-9

adding a multicast filter profile 15-21

addresses

See IP addresses; MAC addresses

Address Resolution Protocol

See ARP

administration

switch 26-1, 34-1

administrative groups, EtherChannel 6-6

advertisements

See VTP advertisements

aliases

See command aliases; IP aliases

aliases, command 2-7

ARP

configuring entries 26-7

assigning port Filter associations 15-24

attempts, limiting telnet 27-12

audience xxi

authentication

overview 27-2

See also 802.1x authentication, Kerberos authentication; local authentication; login authentication; NTP authentication; RADIUS authentication; TACACS+ authentication

authorization

overview 27-50

See also TACACS+ authorization 27-52

autonegotiation

duplex 4-5

speed 4-5

trunks 11-2

auxiliary VLANs

dynamic port VLAN membership 12-11

software support 10-3

B

Backbone Fast

multiple spanning tree 7-13

BackboneFast

adding a switch (figure) 8-18

disabling 8-17

displaying statistics 8-16

enabling 8-16

overview 8-13

Backplane Channel module 32-4

banners

See login banners

boot configuration

clearing system flash 28-8

ignoring NVRAM 28-6

BOOT environment variables

clearing 28-8, 28-9

default 28-4

displaying 28-9

overview 28-3, 28-4

setting 28-7, 28-8

boot field

overview 28-3

setting 28-5

BPDU Filter

multiple spanning tree 7-13

BPDU Guard

multiple spanning tree 7-13

BPDU guard

disabling 8-9

enabling 8-8

BPDU skewing

configuring 7-41

understanding 7-41

BPDUs overview 7-2

bridge identifiers

MAC addresses 7-12

PVST+ 7-21

bridge protocol data units

See BPDUs

C

Catalyst 2948G switches, overview (table) 1-2

Catalyst 2980G switches, overview (table) 1-3

Catalyst 4000 family switches, overview (table) 1-1

CDP

default configuration 20-2

disabling globally 20-2

disabling on ports 20-3

displaying neighbor information 20-5

enabling globally 20-2

enabling on ports 20-3

overview 20-1

setting holdtime 20-4

setting message interval 20-4

CGMP

clearing multicast groups 15-18

clearing multicast router ports 15-18

configuring multicast groups 15-7, 15-17

disabling 15-9

disabling fast-leave processing 15-8

displaying multicast groups 15-7

enabling 15-5

enabling fast-leave processing 15-5, 15-6

joining multicast groups 15-2

leaving multicast group 15-2

leaving multicast groups 15-2

overview 15-1

specifying multicast router ports 15-17

viewing statistics 15-8

channel modes, EtherChannel (table) 6-5

LACP 6-17

checksum, verifying Flash file 30-7

CIDR

static routes and 26-9

Cisco Discovery Protocol

See CDP

Cisco Group Management Protocol

See CGMP

CiscoWorks2000 23-13

CIST 7-13

classification

frames 14-3

Classless InterDomain Routing

See CIDR

clear boot system flash command 28-8

CLI

command aliases 2-7

ROM monitor 2-9

switch

accessing 2-2

designating IP addresses 2-8

designating IP aliases 2-8

designating MAC addresses 2-8

designating modules 2-7

designating ports 2-7

designating VLANs 2-7

help 2-4

history substitution 2-6

operating 2-3

clock, setting 26-4

command aliases

creating 26-5

using 2-7

command line interface

See CLI

Common and Internal Spanning Tree

See also CIST 7-13

Common Spanning Tree

See CST 7-13

community ports

definition 10-8

community strings

defining 23-5

overview 23-2

CONFIG_FILE variable

setting recurrence 28-6

configuration

MISTP 7-48

configuration, clearing 31-8

configuration files

creating 31-2

downloading via RCP 31-6

downloading via rcp 31-6

downloading via TFTP 31-4

guidelines for creating 31-1

uploading

preparation 31-7

uploading preparation 31-5

uploading to rcp server 31-7

uploading to TFTP server 31-5

configuration guidelines

TACACS+ accounting 27-60

configuration register

default setting 28-4

ignoring NVRAM at boot 28-6

overview 28-2

setting boot field 28-5

setting CONFIG_FILE recurrence 28-6

configurations

IGMP traffic filtering 15-19

configuring 15-21

configuring port IP multicast filtering 15-21

console port

disconnecting user sessions 19-9

establishing connections 2-2

monitoring user sessions 19-8

SLIP and 3-9

system message logging settings 33-5

conventions, document xxiv

CoS

configuring default switch values 14-5

drop thresholds

mapping 14-6

transmit 14-3

Layer 2 CoS values, definition 14-2

reverting to default 14-5

CST 7-13

common spanning tree 7-17

D

databases

See VMPS databases

date, setting 26-4

daylight saving time

disabling adjustment 35-7

enabling adjustment 35-5

default configuration

Ethernet 4-3

Fast Ethernet 4-3

TACACS+ accounting 27-60

default gateway, configuring 3-7

default IGMP filter configuration 15-20

denying filter match-action 15-22

DHCP

releasing lease 3-11

renewing lease 3-11

sc0 interface and 3-10

disabling IGMP multicast filtering 15-20

DISL

See DTP

DNS

clearing domain names 34-3

default configuration 34-1

disabling 34-3

enabling 34-2

overview 34-1

setting domain names 34-2

setting up 34-2

system name and 26-1

system prompt and 26-1

DNS servers

clearing 34-3

specifying 34-2

documentation

conventions xxiv

organization xxi

related xxiii

domain names

clearing 34-3

setting 34-2

Domain Name System

See DNS

downloading

configuration files 31-4, 31-6

software images 29-2, 29-6

drop thresholds

CoS mapping 14-6

transmit queue 14-3

DTP

non-Cisco devices and 11-3

overview 11-2

duplex mode

Fast Ethernet 4-5

Dynamic Host Configuration Protocol

See DHCP

dynamic port VLAN membership

configuring 12-5

default configuration 12-2

example 12-9

for auxiliary VLANs 12-11

overview 12-1

troubleshooting 12-7

Dynamic Trunking Protocol

See DTP

E

enable mode, switch CLI 2-3

enable password

recovering lost 27-17

setting 27-15

enabling IGMP multicast filtering 15-20

enabling IGMP traffic filtering 15-21

encapsulation type descriptions, trunks (table) 11-3

encryption

See secure shell encryption

environment variables

See BOOT environment variables

errdisable timeout, configuring 4-6

error messages

system message logging (syslog) 33-1

VMPS (table) 12-6

establishing a multicast filter profile 15-21

EtherChannel

administrative groups 6-6

channel modes (table) 6-5

LACP 6-17

configuration guidelines 6-3

configuring 6-6

configuring administrative groups 6-7

displaying PAgP statistics 6-12

displaying statistics 6-11

EtherChannel IDs 6-6

example configuration 11-8

frame distribution 6-2

hardware support 6-2

maximum number of channels supported 6-4

modes 6-5

modes, using LACP 6-17

overview 6-1

PAgP and 6-5

port costs 6-8

port-VLAN costs 6-9

See also Fast EtherChannel; Gigabit EtherChannel

Ethernet

autonegotiation 4-5

checking connectivity 4-7

default configuration 4-3

overview 4-1

See protocol filtering

setting port duplex 4-5

setting port name 4-3

setting port priority 4-4

setting port speed 4-5

examples, general conventions xxiv

F

Fast EtherChannel

example 6-13

overview 6-2

See also EtherChannel; Gigabit EtherChannel

Fast Ethernet

autonegotiation 4-5

checking connectivity 4-7

default configuration 4-3

overview 4-1

See protocol filtering

setting port duplex 4-5

setting port name 4-3

setting port priority 4-4

setting port speed 4-5

fiber-optic cables, detecting unidirectional links 22-1

filtering

IGMP actions 15-19

filters, protocol

See protocol filtering

Flash file system

copying files 30-4

deleting files 30-5

listing files 30-3

restoring deleted files 30-6

setting configuration modes 30-2

setting default device 30-1

verifying checksum 30-7

verifying file checksum 30-7

flow control

configuring 5-8

overview 5-1

forward delay timer 7-38

frame classification

overview 14-3

frame distribution, EtherChannel 6-2

G

GARP Multicast Registration Protocol

See GMRP

GARP timers

setting 13-7, 15-14

GARP VLAN Registration Protocol

See GVRP

Gigabit EtherChannel

example 6-15

See also EtherChannel; Fast EtherChannel

Gigabit Ethernet

checking connectivity 5-10

configuring flow control 5-8

configuring port negotiation 5-9

default configuration 5-6

flow control 5-1

port negotiation 5-3

port negotiation link states (table) 5-3

setting port names 5-7

setting port priority 5-8

GMRP

clearing statistics 15-16

default configuration 15-10

disabling forward-all option 15-12

disabling globally 15-16

disabling per-port 15-11

enabling forward-all option 15-12

enabling globally 15-10

enabling per-port 15-11

overview 15-3

registration15-13to 15-14

setting timers 15-14

software requirements 15-9

viewing statistics 15-15

group profiles

IGMP multicast 15-19

GVRP

clearing statistics 13-8

configuring registration 13-5

disabling 13-9

enabling 13-3

registration 13-6

setting timers 13-7

viewing statistics 13-8

H

hello time

timer 7-38

history

switch CLI 2-6

I

I-BPDU 7-13

ICMP

IP traceroute 19-13

time exceeded messages 19-13

using ping19-9to 19-10

ID and MAC addresses, bridge 7-12

IEEE 802.1Q

example 11-8

overview 11-1

restrictions 11-4

See 802.1Q

IEEE 802.1x

See 802.1x authentication

IGMP

configuration guidelines 15-4

joining multicast groups 15-2

leaving multicast groups 15-2

overview 15-1

using traffic filtering 15-19

IGMP filtering

software requirements 15-19

IGMP filter match-action

denying and verifying 15-22

permitting and verifying 15-22

IGMP multicast filtering

disabling and verifying 15-20

enabling and verifying 15-20

IGMP traffic filtering 15-19

images

See software images; system images

in-band (sc0) interface

See sc0 interface

inferior BPDUs, BackboneFast and 8-14

interfaces

me1 (out-of-band management) 3-5, 3-6

sc0 (in-band) 3-5, 10-2

sl0 (SLIP)) 3-9

Internal Sub Tree Protocol

See ISTP 7-13

Internet Control Message Protocol

See ICMP

Internet Group Management Protocol

See IGMP

Inter-Switch Link

See ISL

IP addresses

adding to IP permit list 17-2

automatic assignment 3-2

CIDR 26-9

clearing from IP permit list 17-4

creating aliases 26-6

default gateway 3-7

designating 2-8

DHCP and 3-10

me1 interface and 3-6

RARP and 3-10

sc0 interface and 3-5

sl0 interface and 3-10

static routes 26-8

VLANs and 10-2

IP aliases

creating 26-6

designating 2-8

IP multicast

CGMP and 15-4

GMRP and 15-9

group entries 15-16

overview 15-1

router ports and group entries 15-16

See also multicast groups; multicast routers

IP permit list

adding addresses 17-2

clearing entries 17-4

default configuration 17-2

disabling 17-4

enabling 17-3

overview 17-1

IP traceroute

executing 19-13

overview 19-13

ISL

mapping 802.1Q VLANs 10-5

overview 11-1

supported switches (table) 11-4

isolated ports

definition 10-8

ISTP 7-13

K

Kerberos authentication

configuration guidelines 27-11

copying SRVTAB files 27-34

defining realm 27-33

disabling credentials forwarding 27-37

enabling 27-32

enabling credentials forwarding 27-36

overview 27-4

servers, specifying 27-33

terminology 27-5, 27-8

keys

See RADIUS keys; TACACS+ keys

L

LACP

configuration parameters 6-17

configuration procedures 6-18

modes 6-16

Layer 2 traceroute

utility 19-11

leave processing, CGMP

disabling 15-8

enabling 15-5, 15-6

limiting telnet attempts 27-12

Link Aggregation Control Protocol

See LACP

listing all multicast filters 15-23

listing port filter associations 15-24

load balancing 7-12

load sharing, trunking and 11-12

local authentication

configuration guidelines 27-11

default configuration 27-10, 27-60

disabling 27-16

enabling 27-14

overview 27-2

password recovery 27-17

setting enable password 27-15

location, setting 26-3

login

limiting attempts 27-2

login authentication

enabling 27-12, 27-13

overview 27-2

login banner

clearing 26-5

configuring 26-4

overview 26-4

login passwords

recovering lost 27-17

setting 27-15

login timer

changing 19-7

Loop Guard

multiple spanning tree 7-13

M

MAC addresses

allocating 7-12

blocking 16-1

bridge identifiers 7-12

designating 2-8

disabling notification 16-6

enabling notification 16-6

port security and 16-1

setting notification history log size 16-6

setting notification interval 16-6

management interfaces

overview 3-1

mapping VLANs 10-5

match-action filtering 15-22

maximum aging time timers 7-38

me1 interface

assigning IP addresses 3-6

overview 3-1

me1interface

configuring 3-6

message-of-the-day

See login banner

metric values, switch TopN reports (table) 21-2

MIBs

Network Analysis Module and 24-3

overview 23-2

MISTP

bridge ID priority 7-29, 7-48

configuring an instance 7-28

conflicts, MISTP VLAN 7-33

default configuration 7-27

enabling an instance 7-32

mapping VLANs to 7-32

MISTP-PVST+ 7-26

port cost 7-29

port instance cost 7-31

port instance priority 7-31

port priority 7-30

unmapping VLANs from 7-34

modes, switch CLI 2-3

modules

checking status 19-1

configuring Ethernet 4-1, 18-1

configuring Fast Ethernet 4-1, 6-1, 18-1

configuring Gigabit Ethernet 5-1

configuring supervisor engine 3-1

designating on command-line 2-7

Ethernet

configuring 6-1

Gigabit Ethernet

configuring 6-1

modules, switch fabric accelerator 32-4

MOTD

See login banner

MST 7-12

boundary ports 7-18

bridge ID priority 7-48

configuration 7-17

configuring 7-43

edge ports 7-18

enabling 7-43

hop count 7-19

instances 7-17

interoperability 7-15

interoperability with PVST+ 7-13

link type 7-19

mapping VLANs to 7-51

master 7-18

message age 7-19

port cost 7-48

port instance cost 7-50

port instance priority 7-50

port priority 7-49

region 7-17

regions 7-17

understanding 7-12

MSTP

M-record 7-13

M-tree 7-13

multicast

See IP multicast

multicast filtering

port IP configuring 15-21

multicast filter profile

establishing and verifying 15-21

removing 15-23

multicast filters

listing all 15-23

removing all 15-23

multicast groups

CGMP and 15-4

clearing 15-18

configuring 15-7, 15-17

GMRP and 15-9

joining 15-2

leaving 15-2

multicast port filter associations

removing 15-25

multicast routers

clearing ports 15-18

specifying port for 15-17

multiple forwarding paths 7-12

Multiple Instance Spanning Tree Protocol

See MISTP

Multiple Spanning Tree

See MST 7-12

N

names, setting port 4-3, 5-7

native VLANs

802.1Q and 11-4

neighbor devices, displaying 20-5

network fault tolerance 7-12

network management

configuring 24-1

See RMON; SNMP

Network Time Protocol

See NTP

NFFC/NFFC II

IGMP snooping and 15-4

protocol filtering and 18-1

NMS

SPAN, configuring 25-1

normal mode, switch CLI 2-3

NTP

clearing time zone 35-7

configuring broadcast-client mode 35-3

configuring client mode 35-3

default configuration 35-2

disabling 35-8

disabling broadcast-client mode 35-8

disabling client mode 35-8

disabling daylight saving time adjustment 35-7

overview 35-1

NTP authentication

configuring 35-4

enabling daylight saving time adjustment 35-5

setting time zone 35-5

NTP servers

clearing 35-7

specifying 35-3

NVRAM

ignoring content at boot 28-6

setting configuration modes 30-2

O

organization, document xxi

out-of-band management interface

See me1 interface

P

PAgP

displaying statistics 6-12

overview 6-5

passwords

recovering lost 27-17

setting enable 27-15

permit lists

See IP permit lists

permitting and verifying 15-22

permitting filter match-action 15-22

physical restrictions 15-19

ping

executing 19-10

overview 19-9

testing connectivity 4-7, 5-10

Port Aggregation Protocol

See PAgP

port cost

EtherChannel 6-8

Port Fast

multiple spanning tree 7-13

PortFast

configuring 8-2

PortFast BPDU guard

configuring 8-8

disabling 8-9

port filter associations

assigning and listing 15-24

port IP multicast filtering 15-21

port names

Ethernet 4-3

Fast Ethernet 4-3

Gigabit Ethernet 5-7

port negotiation

configuring 5-9

overview 5-3

port priority

Ethernet 4-4

Fast Ethernet 4-4

Gigabit Ethernet 5-8

ports

assigning to VLAN 10-4

checking capabilities 19-5

checking status 19-2

designating on command-line 2-7

dynamic VLAN membership overview 12-1

private VLAN 10-8

speed

10/100 Fast Ethernet 4-5

port security

clearing MAC addresses 16-6

configuration guidelines 16-3

configuring16-1to 16-11

specifying age time 16-5

specifying secure MAC addresses 16-5

specifying security violation action 16-8

specifying shutdown time 16-8

configuring MAC address notification 16-6

disabling 16-9

monitoring 16-10

overview 16-1

port VLAN cost

configuring for PVST+ 7-24

setting EtherChannel 6-9

port VLAN priority

configuring 7-25

power budget

setting 26-15

power management

overview 26-11

redundancy 26-12

priority

See port priority

private VLANs

configuration guidelines 10-9

creating 10-10

delete mapping 10-14

deleting 10-13

deleting community VLANs 10-14

deleting isolated 10-14

hardware interactions 10-9

isolated VLAN 10-8

overview 10-7

primary VLAN 10-8

software interactions 10-9

privileged mode, switch CLI 2-3

promiscuous ports

definition 10-8

prompt

configuring 26-2

overview 26-1

protocol filtering

configuring 18-3

default configuration 18-2

overview 18-1

protocol support 18-1

pruning, VTP

See VTP pruning

PVST+

configuring bridge ID priority 7-21

default configuration 7-20

default port cost mode 7-23

disabling 7-25

port cost 7-22

port priority 7-23

port VLAN cost 7-24

Q

QoS

CoS

mapping drop thresholds 14-6

reverting to port default 14-5

transmit drop thresholds 14-3

values 14-2

default configuration 14-4

disabling 14-7

displaying information 14-7

enabling 14-5

frame classification 14-3

labels 14-2

overview 14-1

reverting to defaults 14-7

traffic flow (figure) 14-2

transmit queue

overview 14-3

Quality of Service

See QoS

R

RADIUS

configuration guidelines 27-60

overview 27-57, 27-59

RADIUS accounting

accounting events 27-57

creating accounting records 27-58

disabling 27-62

enabling 27-60

example configuration 27-63

overview 27-57

specifying servers 27-58

suppressing accounting 27-59

updating the server 27-59

RADIUS authentication

configuration guidelines 27-11

default configuration 27-10, 27-60

disabling 27-30

enabling 27-25

overview 27-4

setting deadtime 27-28

setting retransmit count 27-27

setting timeout 27-26

RADIUS keys

clearing 27-29

specifying 27-25

RADIUS servers

clearing 27-29

specifying 27-24, 27-58

Rapid Spanning Tree

See RSTP 7-14

RARP

sc0 interface and 3-10

rcp

downloading configuration files 31-6

uploading configuration files 31-7

related documentation xxiii

Remote Copy Protocol

See rcp

Remote Monitoring

See RMON

Remote Switched Port Analyzer

See RSPAN

removing all multicast filters 15-23

removing multicast filter profile 15-23

removing multicast port filter associations 15-25

report, system status 26-15

reports

IGMP filering 15-19

restrictions

IGMP traffic filtering 15-19

Reverse Address Resolution Protocol

See RARP

RMON

enabling 24-2

overview 24-1

supported MIB objects 24-3

viewing data 24-2

ROM monitor

BOOT environment variables and 28-3, 28-4

boot process and 28-2

CLI 2-9

configuration register and 28-2

Root Guard

multiple spanning tree 7-13

root guard

disabling 7-38

enabling 7-38

root switch

configuring primary 7-35

configuring secondary 7-36

overview 7-35

See also root guard

router, multicast

See multicast routers

RSPAN

configuration examples25-14to 25-17

configuration guidelines 25-10

configuring from CLI 25-11

configuring multiple RSPAN sessions 25-16

configuring single RSPAN session 25-14

disabling 25-13

hardware requirements 25-9

overview 25-1

session limits 25-4

See also SPAN; VSPAN

RSTP

port roles 7-14

port states 7-15

running configuration

downloading via rcp 31-6

S

sc0 interface

assigning IP address 3-6

configuring 3-5

DHCP and 3-10

overview 3-1, 3-5

RARP and 3-10

VLAN assignment 10-2

secure shell encryption

See SSH

security

configuring 17-1

configuring passwords 27-15

IP permit list 17-1

set spantree portcost command 7-22, 7-48

set spantree priority command 7-48

show port mac-address 19-4

Simple Network Management Protocol

See SNMP

Single Spanning Tree

See SST 7-13

sl0 interface

configuring 3-9

console port and 3-9

overview 3-1

SLIP interface

See sl0 interface

SNMP

benefits 23-7

configuring 23-5

default configuration 23-4

defining community strings 23-5

overview 23-2

supported RMON MIB objects 24-3

SNMPv3

configuring 23-10

definitions 23-10

overview 23-6

software images

downloading using rcp 29-6

downloading using TFTP 29-2

supervisor engine, description 1-3

uploading to rcp server 29-9

uploading to TFTP server 29-5

software restaints 15-19

SPAN

configuration guidelines 25-5

configuring 25-6

destination port 25-2

disabling 25-8

egress 25-3

ingress 25-3

NMS and 25-1

overview 25-5

session 25-2

session limits 25-4

source ports 25-2

traffic 25-4

spanning tree

dummy MAC addresses and 8-11

EtherChannel port costs 6-8

EtherChannel port-VLAN costs 6-9

spanning tree backbone fast convergence

See BackboneFast

spanning tree PortFast

See PortFast

Spanning Tree Protocol

See STP

spanning tree UplinkFast

See UplinkFast

speed

setting 10/100 Fast Ethernet port 4-5

SSH 19-7

configuring 19-7

SST 7-13

interoperability 7-15

static route, configuring 26-8

status reports, system 26-15

STP

BPDUs and 7-2

forward delay timer 7-39

hello time 7-39

MAC address allocation 7-12

maximum age timer 7-39

overview 7-1

PortFast, configuring 8-2

port states 7-4

See also MISTP; PVST+

supervisor engine

configuring 3-1

connecting through console port 2-2

default configuration 3-5

default gateways 3-7

me1 interface 3-6

sc0 interface 3-5

sl0 interface 3-9

software description 1-3

software images overview 1-3

startup configuration 28-1

static routes 26-8

uploading software images 29-5, 29-9

switch acceleration 32-1

configuring 32-1, 32-3

switch CLI

accessing 2-2

command aliases 2-7

designating IP addresses 2-8

designating IP aliases 2-8

designating MAC addresses 2-8

designating modules 2-7

designating ports 2-7

designating VLANs 2-7

help 2-4

history substitution 2-6

modes 2-3

operating 2-3

Switched Port Analyzer

See SPAN

switch management interfaces

See me1 interface; sc0 interface; sl0 interface

switch TopN reports

background option 21-2

foreground execution 21-2, 21-3

metric values (table) 21-2

overview 21-1

running 21-3

viewing 21-3

syslog

changing enable state timestamp 33-6

configuring 33-4

configuring daemon 33-7

default configuration 33-4

displaying configuration 33-9

displaying message log 33-10

facilities (table) 33-2

message format 33-3

overview 33-1

setting buffer size 33-6

setting logging levels 33-6

setting session settings 33-4

severity levels (table) 33-3

syslog servers

configuring 33-7

system clock, setting 26-4

system contact, setting 26-3

system images

downloading using rcp 29-6

downloading using TFTP 29-2

switch

specifying startup 28-1

uploading 29-9

uploading 29-5

system location, setting 26-3

system message logging

changing enable state timestamp 33-6

configuring 33-4

configuring daemon 33-7

configuring syslog daemon 33-7

default configuration 33-4

displaying configuration 33-9

displaying message log 33-10

facilities (table) 33-2

message format 33-3

overview 33-1

setting buffer size 33-6

setting logging levels 33-6

setting session settings 33-4

severity levels (table) 33-3

system name

clearing 26-3

configuring 26-2

overview 26-1

system prompt

configuring 26-2

overview 26-1

system reset

scheduling 26-9

system status report

generating 26-15

T

TACACS+ accounting

accounting events 27-57

configuration guidelines 27-60

creating accounting records 27-58

disabling 27-62

enabling 27-60

example configuration 27-63

overview 27-57

suppressing accounting 27-59

updating the server 27-59

TACACS+ authentication

configuration guidelines 27-11

default configuration 27-10

disabling 27-23

enabling 27-19

example configuration 27-49

login attempts allowed 27-21

overview 27-3

timeout interval 27-20

TACACS+ authorization

authorization events 27-50

command authorization 27-51

configuration guidelines 27-52

default configuration 27-52

disabling 27-54

enabling 27-53

example configuration 27-55

fallback options 27-51

overview 27-50

primary options 27-51

TACACS+ keys

clearing 27-23

specifying 27-20

Telnet

disconnecting user sessions 19-9

executing 19-6

limiting attempts 27-12

monitoring user sessions 19-8

system message logging settings 33-5

text file configuration mode

setting the configuration mode 30-2

TFTP

downloading software images 29-2

uploading configuration files 31-5

uploading software images 29-5

time, setting 26-4

time exceeded messages 19-13

timers

configuring forward delay 7-38

configuring hello time 7-38

configuring maximum aging time 7-38

GARP 13-7, 15-14

login 19-7

time zone

clearing 35-7

setting 35-5

TopN reports

See switch TopN reports

traceroute

See IP traceroute

traceroute utility, Layer 2 19-11

traffic filtering

IGMP 15-19

transmit queue overview 14-3

troubleshooting

dynamic port VLAN membership 12-7

system message logging and 33-1

VMPS 12-6

trunks

802.1Q restrictions 11-4

allowed VLANs 11-6

autonegotiation 11-2

configuring IEEE 802.1Q 11-5

default configuration 11-5

disabling 11-7

disabling VLAN 1 11-21

encapsulation types

descriptions (table) 11-3

switch support matrix (table) 11-4

example configurations

Gigabit 11-8

load sharing 11-12

nonnegotiate 11-18

modes (table) 11-2

overview 11-1

possible configurations (table) 11-3

U

UDLD

default configuration 22-3

disabling globally 22-4

disabling on ports 22-4

displaying configuration 22-6

enabling aggressive mode 22-5

enabling globally 22-3

enabling on ports 22-4

hardware requirements 22-2

overview 22-1

software requirements 22-2

specifying message interval 22-5

unclassified frames 14-3

UniDirectional Link Detection

See UDLD

Uplink Fast

multiple spanning tree 7-13

UplinkFast

configuring 8-11

dummy MAC addresses 8-11

overview 8-10

uploading

configuration files 31-5, 31-7

software images 29-5, 29-9

supervisor 29-9

user sessions

disconnecting 19-9

monitoring 19-8

using IGMP traffic filtering 15-19

V

verifying a multicast filter profile 15-21

verifying disabled IGMP multicast filtering 15-20

verifying enabled IGMP multicast filtering 15-20

verifying IGMP filter match-action 15-22

virtual LANs

See VLANs

VLAN-based SPAN

See VSPAN

VLAN filtering

trunk 25-4

VLAN Management Policy Server

See VMPS

VLANs

allowed on trunk 11-6

assigning ports to 10-4

assigning to ports 10-4

configuration guidelines 10-3

default configuration 10-3

deleting 10-7

designating on command-line 2-7

Ethernet 10-4

in-band (sc0) interface assignment 10-2

IP subnetworks and 10-2

mapping 802.1Q to ISL 10-5

mapping conflicts 7-33

overview 10-1

protocol filtering and 18-1

sc0 (in-band) interface assignment 10-2

See also auxiliary VLANs; native VLANs; private VLANs

VLANs, private

See private VLANs

VLAN Trunk Protocol

See VTP

VMPS

configuring 12-5

configuring dynamic port membership 12-5

default configuration 12-2

dynamic port membership

example 12-9

overview 12-1

troubleshooting 12-7

error messages (table) 12-6

overview 12-1

troubleshooting 12-6

VMPS database

creating 12-3

example configuration file 12-7

VSPAN

overview 25-3

VTP

"off" mode, configuring 9-7

configuration guidelines 9-5

configuring client 9-6

configuring server 9-6

configuring transparent mode 9-7

default configuration 9-5

disabling 9-7

domains 9-2

monitoring 9-11

overview 9-1

statistics 9-11

VTP advertisements 9-2

VTP modes

client 9-2

off 9-2

server 9-2

transparent 9-2

VTP pruning

configuring 9-9

disabling 9-10

overview 9-3

VTP version 2

disabling 9-9

enabling 9-8

overview 9-3

W

write tech support command 26-15