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

index

Numerics

10/100 port speed, setting     5-6

802.10 trunks

See IEEE 802.10 trunks

802.1Q

See IEEE 802.1Q

802.3 RAW-to-FDDI translation     38-12

A

Access Control Entry

See ACE

accounting     30-45

disabling     30-47

enabling     30-45

example configuration     30-48

RADIUS

accounting events     30-42

creating accounting records     30-42

example configuration     30-48

overview     30-41

servers, specifying     30-43

suppressing accounting     30-44

updating the server     30-44

TACACS+

accounting events     30-42

configuration guidelines     30-45

creating accounting records     30-42

example configuration     30-48

overview     30-41

suppressing accounting     30-44

updating the server     30-44

ACE

creating     15-11

Layer 4

port numbers     15-12

protocols     15-12

overview     15-5

addresses

IP

adding to IP permit list     19-2

aliases, creating     29-6

automatic assignment     3-2

clearing from IP permit list     19-5

designating     2-8

DHCP and     3-10

in-band (sc0) interface and     3-5

out-of-band management Ethernet (me1) interface and     3-6

SLIP (sl0) interface and     3-10

MAC

allocation     8-11

blocking     18-1

designating     2-8

filters, Token Ring     41-2

learning, FDDI/CDDI     38-14

port security and     18-1

address-recognized bit, Token Ring     40-9

administration

overview     1-10

switch     29-1, 36-1

administrative groups, EtherChannel     7-2

advertisements, VTP     10-2

aliases

command, creating     29-5

IP

creating     29-6

designating     2-8

All-Routes Explorers

maximum hops     11-10

reduction, Token Ring     40-10

APaRT, FDDI/CDDI and     38-12

ARP

configuring permanent and static entries     29-6

audience     xxv

authentication

example configuration     30-34

Kerberos

configuration guidelines     30-8

credentials forwarding, enabling     30-30

enabling     30-26

overview     30-4

realm, defining     30-26

servers, specifying     30-27

SRVTAB files     30-28

local

configuration guidelines     30-8

default configuration     30-7, 30-44

disabling     30-11

enable password, setting     30-10

enabling     30-9

overview     30-2

password recovery     30-12

NTP     37-4

overview     30-2, 30-41

RADIUS

configuration guidelines     30-8

deadtime, setting     30-22

default configuration     30-7, 30-44

disabling     30-24

enabling     30-19

key, clearing     30-24

key, specifying     30-20

overview     30-3

retransmit count, setting     30-22

servers, clearing     30-23

servers, specifying     30-19

timeout, setting     30-21

TACACS+

configuration guidelines     30-8

default configuration     30-7, 30-44

disabling     30-17

enabling     30-13

example configuration     30-34

key, specifying     30-14

login attempts allowed     30-15

overview     30-2

timeout interval     30-15

authorization

configuration guidelines     30-37

default configuration     30-37

disabling authorization     30-39

enabling authorization     30-38

example configuration     30-41

overview     30-35

TACACS+

authorization configuration guidelines     30-37

authorization events     30-35

authorization primary options and fallback options     30-35

command authorization     30-36

example configuration     30-41

overview     30-35

automatic packet recognition and translation

See APaRT

autonegotiation

duplex     5-7

speed     5-6

trunks     12-2

B

BackboneFast

disabling     9-12

displaying statistics     9-12

enabling     9-11

overview     9-9

banner

See login banner

blocking state, STP     8-6

BOOT environment variable

clearing     31-10, 31-12

default     31-4

displaying     31-12

overview     31-3

setting     31-9, 31-10

boot field

overview     31-3

setting     31-5

booting

configuration register

setting value     31-8

ignoring NVRAM     31-8

BPDUs, overview     8-3

bridge forward delay, STP     8-18

bridge hello time, STP     8-18

bridge ID

MAC addresses and     8-11

bridge maximum aging time, STP     8-19

bridge priority, STP     8-17, 8-19

bridge protocol data units

See BPDUs

broadcast suppression

bandwidth-based     17-2

disabling     17-5

enabling     17-4

hardware     17-2

overview     17-1

packet-based     17-3

software     17-3

C

CAM

FDDI/CDDI     38-12

Catalyst 2926G series, overview (table)     1-4

Catalyst 2948G, overview (table)     1-4

Catalyst 2980G series, overview (table)     1-5

Catalyst 4000 family, overview (table)     1-3

Catalyst 5000 family

overview (table)     1-2

Catalyst 5500 series

redundant supervisor in     4-1

CDDI

APaRT, configuring     38-12

CAM     38-12

checking connectivity     38-15

default configuration     38-2, 39-3

example configurations

IEEE 802.10 trunking     39-4

multiswitch without trunking     38-16

single switch     38-15

ICMP unreachable messages     38-6

IEEE 802.10 trunks

configuration guidelines     39-3

configuring     39-4

overview     39-1

VTP and     39-2

IP fragmentation, configuring     38-6

IPX translations     38-10

LER

alarm, setting     38-7

cutoff, setting     38-8

MAC address learning, configuring     38-14

native VLAN, setting     38-5

neighbor notification frames     38-8

overview     38-1

PHY line state     38-9

port name, specifying     38-4

port priority, setting     38-4

TRequest parameter     38-10

TRT     38-10

user-data string, specifying     38-3

CDP

default configuration     22-2

disabling

globally     22-2

on ports     22-3

displaying neighbor information     22-5

enabling

globally     22-2

on ports     22-3

holdtime, setting     22-4

message interval, setting     22-4

overview     22-1

CGMP

disabling     16-9

enabling     16-5

joining multicast group     16-2

leave processing

disabling     16-9

enabling     16-6

leaving multicast group     16-2

multicast group

clearing     16-29

configuring     16-8, 16-13, 16-28

multicast router ports

clearing     16-28

specifying     16-27

overview     16-1

statistics, viewing     16-8

channel modes, EtherChannel (table)     7-3

checksum, verifying Flash file     32-9

CIDR

static routes and     29-8

Cisco Discovery Protocol

See CDP

Cisco Group Management Protocol

See CGMP

CiscoWorks2000     25-4

classified frames     15-4

Classless InterDomain Routing

See CIDR

clear boot system flash command     31-10

clearing the configuration     34-10

CLI

ROM monitor     2-9

switch

accessing     2-2

help     2-4

history substitution     2-6

IP addresses, designating     2-8

IP aliases, designating     2-8

MAC addresses, designating     2-8

modules, designating     2-7

operating     2-3

ports, designating     2-7

VLANs, designating     2-7

switch CLI

command aliases     2-7

clock, setting     29-4

command aliases     2-7

command aliases, creating     29-5

community strings

defining     25-3

overview     25-2

CONFIG_FILE variable

recurrence, setting     31-7

configuration, clearing     34-10

configuration files

creating     34-2

downloading

RCP     34-8

TFTP     34-5

via RCP     34-7, 34-8

via TFTP     34-5

guidelines for creating     34-1

running configuration

downloading via RCP     34-8

downloading via TFTP     34-5

uploading via RCP     34-9

uploading via TFTP     34-6

uploading

preparation     34-6, 34-9

to RCP server     34-9

to TFTP server     34-6

configuration guidelines

RADIUS accounting     30-45

TACACS+ accounting     30-45

configuration loss thresholds, Token Ring     40-10

configuration register

boot field

switch, setting     31-5

CONFIG_FILE recurrence, setting     31-7

default setting     31-4

ignoring NVRAM at boot     31-8

overview     31-2

ROM monitor console port baud rate     31-6

setting     31-8

console port

downloading software images

example PC download     33-29

example UNIX download     33-30

PC procedure     33-27

preparation     33-26

UNIX procedure     33-28

establishing a connection     2-2

redundant supervisor and     4-2

ROM monitor baud rate     31-6

SLIP and     3-9

system message logging settings     35-5

user sessions

disconnecting     21-8

monitoring     21-7

contact, setting     29-3

content-addressable memory

See CAM

conventions, documentation     xxix

Copper Distributed Data Interface

See CDDI

COPS

communications parameters     15-22

domain name     15-21

deleting     15-21

PDP server configuration

deleting     15-21

QoS policy source     15-19

roles     15-19

deleting     15-20

removing     15-20

selecting locally configured QoS policy     15-19

CoS

ACE and     15-11

default switch CoS     15-9

drop thresholds

mapping     15-14

transmit     15-6

Layer 4 port numbers     15-12

Layer 4 protocols     15-12

MAC/VLAN and     15-5, 15-11

port and

configuring values     15-9

overview     15-4

reverting to default     15-10

values     15-3

CWSI Campus     25-4

D

database

VMPS

downloading     13-7

example configuration file     13-9

date, setting     29-4

daylight saving time

disabling adjustment     37-7

enabling adjustment     37-5

Dedicated Token Ring

See DTR

default configuration

CDDI     38-2, 39-3

CDP     22-2

DNS     36-1

dynamic port membership     13-2

errdisable timeout     5-10

EtherChannel     7-4

Ethernet     5-4

Fast EtherChannel     7-4

Fast Ethernet     5-4

Fast Ethernet trunks     12-5

FDDI     38-2, 39-3

Gigabit EtherChannel     7-4

Gigabit Ethernet     6-6

Gigabit Ethernet trunks     12-5

GMRP     16-20

IP permit list     19-2

Kerberos authentication     30-7

local authentication     30-7

NTP     37-2

port enable state     5-9

protocol filtering     20-3

QoS     15-7

RADIUS accounting     30-44

RADIUS authentication     30-7

SNMP     25-3

spanning-tree     8-12

supervisor engine     3-5

switch boot configuration     31-4

system message logging     35-4

TACACS+ accounting     30-44

TACACS+ authentication     30-7

Token Ring     40-4

UDLD     24-3

VLANs     11-6

VMPS     13-2

VTP     10-5

default gateway, configuring     3-7

DHCP

in-band (sc0) interface and     3-10

releasing lease     3-11

renewing lease     3-11

disabled state, STP     8-10

DISL

See DTP

DNS

default configuration     36-1

disabling     36-3

domain name

clearing     36-3

setting     36-2

enabling     36-2

overview     36-1

server

clearing     36-3

specifying     36-2

setting up     36-2

system name and     29-1

system prompt and     29-1

documentation, related     xxviii

document conventions     xxix

document organization     xxv

domain name

clearing     36-3

setting     36-2

Domain Name System

See DNS

downloading

configuration files

RCP     34-8

TFTP     34-5

via RCP     34-7, 34-8

via TFTP     34-5

software images

example, multiple module     33-10, 33-11, 33-23, 33-24

example, single module     33-9, 33-10, 33-21, 33-22

example, supervisor     33-6, 33-8, 33-18, 33-20

overview     33-1, 33-14

preparation     33-2, 33-15

supervisor     33-3, 33-15

switching module     33-4, 33-16

drop thresholds

CoS mapping     15-14

transmit queue     15-5, 15-14

DTP

non-Cisco devices and     12-4

overview     12-2

DTR     40-4

duplex

Fast Ethernet     5-7

Token Ring     40-7

dynamic port VLAN membership

configuring     13-5

default configuration     13-2

example     13-10

overview     13-1

reconfirming     13-7

troubleshooting     13-8

Dynamic Trunking Protocol

See DTP

E

early token release, setting     40-8

enable mode, switch CLI     2-3

enable password

recovering lost     30-12

setting     30-10

encapsulation type descriptions, trunks (table)     12-3

environment variables

BOOT

clearing     31-10

displaying     31-12

overview     31-3

setting     31-9, 31-10

errdisable timeout, configuring     5-10

error messages

system message logging (syslog)     35-1

VMPS (table)     13-8

EtherChannel

administrative groups

configuring     7-6

overview     7-2

channel modes (table)     7-3

configuration example     7-12

configuration guidelines     7-4

configuring     7-5

default configuration     7-4

EtherChannel IDs     7-2

example configuration     7-14, 12-12, 12-14

frame distribution     7-3

hardware support     7-4

modes     7-3

overview     7-1

PAgP and     7-2

PAgP statistics, displaying     7-11

port costs     7-7

port-VLAN costs     7-8

statistics, displaying     7-10

Ethernet

802.3 RAW-to-FDDI translation     38-12

autonegotiation, speed     5-6

checking connectivity     5-11

default configuration     5-4

FDDI 802.2-to-Ethernet translation     38-11

FDDI SNAP-to-Ethernet translation     38-10

overview     5-1

port duplex, setting     5-7

port name, setting     5-5

port priority, setting     5-6

port speed, setting     5-6

protocol filtering

See protocol filtering

examples, conventions     xxix

F

Fast EtherChannel

See EtherChannel

Fast Ethernet

autonegotiation, speed     5-6

checking connectivity     5-11

default configuration     5-4

EtherChannel

See EtherChannel

flow control

command keywords (table)     5-3

configuring     5-8

overview     5-3

overview     5-1

port duplex, setting     5-7

port name, setting     5-5

port negotiation

configuring     5-8

overview     5-3

possible port states (table)     5-4

port priority, setting     5-6

port speed, setting     5-6

protocol filtering

See protocol filtering

trunks

See trunks

FDDI

802.2-to-Ethernet translation     38-11

802.3 RAW-to-FDDI translation     38-12

APaRT, configuring     38-12

CAM     38-12

checking connectivity     38-15

default configuration     38-2, 39-3

example configurations

IEEE 802.10 trunking     39-4

multiswitch without trunking     38-16

single switch     38-15

ICMP unreachable messages     38-6

IEEE 802.10 trunks

configuration guidelines     39-3

configuring     39-4

example configuration     39-4

overview     39-1

VTP and     39-2

IP fragmentation, configuring     38-6

IPX translations     38-10

LER

alarm, setting     38-7

cutoff, setting     38-8

MAC address learning, configuring     38-14

native VLAN, setting     38-5

neighbor notification frames     38-8

overview     38-1

PHY line state     38-9

port name, specifying     38-4

port priority, setting     38-4

SNAP-to-Ethernet translation     38-10

TRequest parameter     38-10

TRT     38-10

user-data string, specifying     38-3

Fiber Distributed Data Interface

See FDDI

fiber-optic, detecting unidirectional links     24-1

filters

protocol

See protocol filtering

Token Ring

clearing     41-4

MAC address filter, adding     41-2

overview     41-1

protocol filter, adding     41-3

Flash file system

checksum, verifying     32-9

copying files     32-5

default device, setting     32-2

deleting files     32-8

formatting device     32-10

listing files     32-2, 32-4

overview     32-1

restoring deleted files     32-9

verifying file checksum     32-9

Flash synchronization

examples     4-12

flow control

Fast Ethernet

configuring     5-8

overview     5-3

Gigabit Ethernet

configuring     6-8

overview     6-1

keywords (table)     5-3

formatting, Flash device     32-10

forward delay timer     8-3

forwarding state, STP     8-9

fragmentation, IP     38-6

frame classification     15-4

frame-copied bit, Token Ring     40-9

frame distribution, EtherChannel     7-3

frame priority, Token Ring     40-6

G

GARP Multicast Registration Protocol

See GMRP

GARP timers     14-7, 16-24

Gigabit EtherChannel

See EtherChannel

Gigabit Ethernet

checking connectivity     6-10

default configuration     6-6

flow control

configuring     6-8

overview     6-1

port name, setting     6-7

port negotiation

configuring     6-9

overview     6-3

possible link states (table)     6-3

port priority, setting     6-8

protocol filtering

See protocol filtering

trunks

See trunks

GMRP

default configuration     16-20

disabling

globally     16-26

per-port     16-21

enabling

globally     16-20

per-port     16-21

forward-all option

disabling     16-22

enabling     16-22

hardware and software requirements     16-19

overview     16-4

registration

fixed     16-23

forbidden     16-24

normal     16-23

statistics

clearing     16-26

viewing     16-25

timers     16-24

GVRP

disabling

globally     14-9

on 802.1Q ports     14-8

enabling

globally     14-3

on 802.1Q ports     14-3

registration

fixed     14-5

forbidden     14-6

normal     14-5

statistics

clearing     14-8

viewing     14-8

timers     14-7

H

Hello timer     8-3

history

switch CLI     2-6

hops, All-Routes Explorers and     11-10

I

ICMP

ping

executing     21-9

overview     21-9

time exceeded messages     21-10

traceroute and     21-10

unreachable messages, FDDI/CDDI and     38-6

IEEE 802.10 trunks

configuration guidelines     39-3

configuring     39-4

overview     39-1

VTP and     39-2

IEEE 802.1Q

configuring     12-7

example configuration     12-14, 12-24

mapping VLANs to ISL     11-12

overview     12-1

restrictions     12-5

spanning tree and     8-11

supported switches (table)     12-5

IGMP

configuration guidelines     16-5, 16-10

disabling     16-15

enabling     16-11

joining multicast group     16-2

leave processing

disabling     16-14

enabling     16-11

leaving multicast group     16-2

overview     16-1

statistics, viewing     16-14

images

See software images

in-band (sc0) interface

configuring     3-5

DHCP and     3-10

IP address, assigning     3-5

overview     3-1, 3-4

RARP and     3-10

VLAN assignment     11-2

inferior BPDU, BackboneFast and     9-9

interfaces

in-band (sc0)     3-4, 3-5, 11-2

out-of-band management (me1)     3-4, 3-6

SLIP (sl0)     3-4, 3-9

Internet Group Management Protocol

See IGMP

Internet protocols, supported     1-11

IP

CIDR and     29-8

default gateway, configuring     3-7

static routes     29-8

subnetworks, VLANs and     11-2

IP addresses

adding to IP permit list     19-2

aliases, creating     29-6

automatic assignment     3-2

clearing from IP permit list     19-5

designating     2-8

DHCP and     3-10

in-band (sc0) interface and     3-5

out-of-band management Ethernet (me1) interface and     3-6

RARP and     3-10

setting on supervisor     3-5, 3-6

SLIP (sl0) interface and     3-10

IP aliases

creating     29-6

designating     2-8

IP fragmentation, FDDI/CDDI and     38-6

IP multicast

CGMP and     16-5

GMRP and     16-19

group entries     16-27

IGMP snooping and     16-10

overview     16-1

router ports and     16-27

IP permit list

addresses, adding     19-2

clearing entries     19-5

default configuration     19-2

disabling     19-4

enabling     19-3

overview     19-1

IP traceroute

executing     21-11

overview     21-10

IPX

802.3 RAW-to-FDDI translation     38-12

FDDI/CDDI translations     38-10

FDDI 802.2-to-Ethernet translation     38-11

FDDI SNAP-to-Ethernet translation     38-10

ISL

configuring     12-6

example configuration     12-11, 12-12

mapping 802.1Q VLANs     11-12

overview     12-1

supported switches (table)     12-5

K

Kerberos

configuration guideliens     30-8

credentials forwarding, enabling     30-30

enabling     30-26

overview     30-4

realm, defining     30-26

servers, specifying     30-27

SRVTAB files, copying     30-28

Kermit

example downloads

PC procedure     33-29

UNIX procedure     33-30

PC software download procedure     33-27

preparing to download software images     33-26

UNIX software download procedure     33-28

key

RADIUS

clearing     30-24

specifying     30-20

TACACS+

clearing     30-17

specifying     30-14

L

Layer 4

port numbers     15-12

protocols     15-12

learning state, STP     8-8

leave processing, CGMP

disabling     16-9

enabling     16-6

leave processing, IGMP

disabling     16-14

enabling     16-11

LER

alarm, setting     38-7

cutoff, setting     38-8

link error rate

See LER

listening state, STP     8-7

load sharing, trunking and     12-18

local authentication

configuration guidelines     30-8

default configuration     30-7, 30-44

disabling     30-11

enable password

setting     30-10

enabling     30-9

overview     30-2

password recovery     30-12

location, setting     29-3

login banner

clearing     29-5

configuring     29-4

overview     29-4

login password

recovering lost     30-12

setting     30-10

M

MAC addresses

allocation     8-11

blocking     18-1

designating     2-8

filters, Token Ring     41-2

learning, FDDI/CDDI     38-14

port security and     18-1

mapping VLANs     11-12

maximum age timer     8-3

me1 (out-of-band management) interface

configuring     3-6

IP address, assigning     3-6

overview     3-1

message-of-the-day

See login banner

metric values, switch TopN reports (table)     23-2

MIBs

Network Analysis Module and     26-3

overview     25-1

RMON/RMON2 support (table)     26-3

support list     1-12

minimal downtime software upgrade     4-8

modes, switch CLI     2-3

modules

CDDI

configuring     38-1

checking status     21-1

designating on command-line     2-7

downloading software images     33-4, 33-16

Ethernet

configuring     5-1, 7-1, 20-1

Fast Ethernet

configuring     5-1, 7-1, 20-1

FDDI

configuring     38-1

Gigabit Ethernet

configuring     6-1, 7-1

Network Analysis Module

configuring     28-1

supervisor engine

configuring     3-1

Token Ring

configuring     40-1

MOTD

See login banner

multicast

CGMP and     16-5

GMRP and     16-19

groups

clearing     16-29

configuring     16-8, 16-13, 16-28

joining     16-2

leaving     16-2

IGMP snooping and     16-10

overview     1-9, 16-1

router

clearing ports     16-28

specifying port for     16-27

suppression

bandwidth-based     17-2

disabling     17-5

enabling     17-4

hardware     17-2

overview     17-1

packet-based     17-3

software     17-3

N

name, setting port     5-5, 6-7

native VLAN

802.1Q and     12-5

CDDI and     38-5

FDDI and     38-5

NDE

Network Analysis Module and     28-3

neighbor devices, displaying     22-5

neighbor notification frames, FDDI/CDDI and     38-8

NetFlow Data Export

See NDE

NetFlow Monitor Option     28-3

Network Analysis Module

configuring     28-2

default configuration     28-2

NDE     28-3

NetFlow Monitor Option     28-3

other commands     28-6

overview     28-1

SPAN     28-3

VLAN Agents Option     28-5

VLAN Monitor Option     28-4

network management

configuring     25-1, 26-1

overview     1-8

network security

See security

Network Time Protocol

See NTP

NFFC/NFFC II

IGMP snooping and     16-5, 16-10

protocol filtering and     20-1

normal mode, switch CLI     2-3

NTP

authentication     37-4

broadcast-client mode

configuring     37-3

disabling     37-8

client mode

configuring     37-3

disabling     37-8

daylight saving time adjustment

disabling     37-7

enabling     37-5

default configuration     37-2

disabling     37-8

overview     37-1

server

clearing     37-7

specifying     37-3

time zone

clearing     37-7

setting     37-5

NVRAM

ignoring content at boot     31-8

O

out-of-band management (me1) interface

configuring     3-6

IP address, assigning     3-6

overview     3-1

overview

Catalyst 2926G series switches (table)     1-4

Catalyst 2948G switch (table)     1-4

Catalyst 2980G series switches (table)     1-5

Catalyst 4000 family switches (table)     1-3

Catalyst 5000 family switches (table)     1-2

software features     1-5

supervisor engine software     1-5

P

PAgP

overview     7-2

statistics, displaying     7-11

passwords

enable     30-10

recovering lost

on switch     30-12

PC card, formatting     32-10

PCMCIA

See PC card

PDP server

see COPS or RSVP+

permit list

See IP permit list

PHY

line state, FDDI/CDDI     38-9

PIM     16-3

ping

executing     21-9

overview     21-9

testing connectivity     5-11, 6-10, 38-15

policy decision point servers

see COPS or RSVP+ PDP

Port Aggregation Protocol

See PAgP

port cost

configuring     8-16

EtherChannel     7-7

PortFast

BPDU guard     9-3

configuring     9-3

PortFast, configuring     9-2

port negotiation

Fast Ethernet

configuring     5-8

overview     5-3

Gigabit Ethernet

configuring     6-9

overview     6-3

ports

capabilities, checking     21-5

changing the default port enable state     5-9

checking status     21-3

cost, STP     8-16

designating on command-line     2-7

duplex

Ethernet     5-7

Fast Ethernet     5-7

Token Ring     40-7

dynamic VLAN membership

configuring     13-5

default configuration     13-2

example     13-10

overview     13-1

reconfirming     13-7

troubleshooting     13-8

errdisable timeout, configuring     5-10

name

CDDI     38-4

Ethernet     5-5

Fast Ethernet     5-5

FDDI     38-4

Gigabit Ethernet     6-7

Token Ring     40-5

port-VLAN cost, STP     8-17

priority

CDDI     38-4

Ethernet     5-6

Fast Ethernet     5-6

FDDI     38-4

Gigabit Ethernet     6-8

STP     8-15

Token Ring     40-6

speed

10/100 Fast Ethernet     5-6

Token Ring     40-6

state, Token Ring STP     8-20

transmission mode, Token Ring     40-7

VLAN assignments     11-11

VLAN priority, STP     8-16

port security

changing the default port enable state     5-9

clearing

MAC addresses     18-5

configuration guidelines     18-2

configuring     18-1

age time, specifying     18-4

MAC addresses, specifying number     18-4

security violation action, specifying     18-5

shutdown time, specifying     18-6

disabling     18-7

monitoring     18-7

overview     18-1

port-VLAN cost

EtherChannel     7-8

priority

CDDI ports     38-4

Ethernet ports     5-6

Fast Ethernet ports     5-6

FDDI ports     38-4

Gigabit Ethernet ports     6-8

STP     8-15

Token Ring ports     40-6

privileged mode, switch CLI     2-3

prompt

configuring     29-2

overview     29-1

protocol filtering

configuring     20-3

default configuration     20-3

overview     20-1

protocol support     20-1

Token Ring     41-3

pruning, VTP

See VTP, pruning

Q

QoS

ACEs     15-5

classification     15-4

CoS

ACE and     15-11

drop thresholds, mapping     15-14

drop thresholds, transmit     15-6

Layer 4 port numbers     15-12

Layer 4 protocols     15-12

MAC/VLAN and     15-5, 15-11

ports, configuring values     15-9

ports, overview     15-4

reverting to port default     15-10

values     15-3

default configuration     15-7

disabling     15-18

enabling     15-9

frame classification     15-4

information display command     15-16

labels     15-3

overview     15-1

revert to defaults     15-17

router address     15-13

statistics     15-15

traffic flow

Catalyst 4000 and 2948G (Figure)     15-3

Catalyst 5000 (Figure)     15-2

traffic flow (figure)     15-2, 15-3

traffic marking     15-4

transmit queue

drop thresholds     15-14

overview     15-5

understanding QoS policy     15-18

Quality of Service

See QoS

R

RADIUS

configuration guidelines     30-8, 30-45

deadtime, setting     30-22

default configuration     30-7, 30-44

disabling     30-24

enabling     30-19

example configuration     30-48

key

clearing     30-24

specifying     30-20

overview     30-3, 30-41, 30-42, 30-44

retransmit count, setting     30-22

servers

clearing     30-23

specifying     30-19, 30-43

timeout, setting     30-21

RADIUS accounting

disabling     30-47

enabling     30-45

RARP

in-band (sc0) interface and     3-10

rcp

downloading configuration files     34-8

downloading software images

supervisor engine     33-15

switching modules     33-14

downloading switching module images     33-16

uploading configuration files     34-9

redundant supervisor engine

See supervisor engine, redundant

related documentation     xxviii

Remote Monitoring

See RMON

Resource Manager Essentials     25-4

RGMP

CLI commands     16-19

configuring     16-15

default configuration     16-15

displaying and clearing VLAN statistics     16-17

displaying group information     16-16

displaying multicast protocol status     16-18

displaying RGMP-capable router ports     16-17

enabling and disabling     16-16

overview     16-3

packet types     16-3

statistics, clearing     16-18

RMON

enabling     26-2

overview     26-1

supported MIB objects     26-3

viewing data     26-2

ROM monitor

BOOT environment variable and     31-3

boot process and     31-2

CLI     2-9

configuration register and     31-2

console port baud rate     31-6

root switch

configuring     8-13

overview     8-2

parameters (table)     8-3

secondary     8-15

STP and     8-2

STP stability and     8-4

router, multicast     16-27

router address for QoS     15-13

Router Group Management Protocol

See RGMP

S

sc0 (in-band) interface

configuring     3-5

IP address, assigning     3-5

overview     3-1

VLAN assignment     11-2

security

configuring     19-1

IP permit list     19-1

overview     1-8

passwords, configuring     30-10

serial download

example PC software image download     33-29

example UNIX software image download     33-30

PC software image download procedure     33-27

preparing to download     33-26

UNIX software image download procedure     33-28

Simple Network Management Protocol

See SNMP

sl0 (SLIP) interface

configuring     3-9

overview     3-1

SLIP

console port and     3-9

sl0 interface     3-4

SLIP (sl0) interface

configuring     3-9

overview     3-1

SNMP

community strings

defining     25-3

overview     25-2

configuring     25-3

default configuration     25-3

overview     25-1

supported RMON MIB objects     26-3

software images

downloading

example, multiple module     33-10, 33-11, 33-23, 33-24

example, single module     33-9, 33-10, 33-21, 33-22

example, supervisor     33-6, 33-8, 33-18, 33-20

overview     33-1, 33-14

preparation     33-2, 33-15

supervisor     33-3, 33-15

switching module     33-4, 33-16

supervisor engine, description     1-5

uploading

preparation     33-13, 33-25

supervisor     33-13, 33-25

software upgrade

minimal downtime     4-8

source-route bridging

See SRB

source-route switching, Token Ring and     40-3

source-route transparent bridging

See SRT bridging

SPAN

configuration guidelines     27-2

configuring     27-3

disabling     27-4

overview     27-1

spanning tree

BPDUs     8-3

EtherChannel port costs     7-7

EtherChannel port-VLAN costs     7-8

forward delay timer     8-3

Hello timer     8-3

IEEE 802.1Q and     8-11

MAC address allocation     8-11

maximum age timer     8-3

root switch     8-15

configuring     8-13

overview     8-2

timers     8-3

UplinkFast

dummy MAC addresses and     9-7

spanning-tree backbone fast convergence

See BackboneFast

spanning-tree PortFast

See PortFast

Spanning-Tree Protocol

See STP

spanning-tree UplinkFast

See UplinkFast

speed

10/100 Fast Ethernet port, setting     5-6

Token Ring port, setting     40-6

SRB, Token Ring and     40-3

SRT bridging, Token Ring and     40-3

standby supervisor engine

See supervisor engine, redundant

static route, configuring     29-8

STP

BPDUs and     8-3

bridge forward delay, setting     8-18

bridge hello time, setting     8-18

bridge maximum aging time, setting     8-19

bridge priority, setting     8-17, 8-19

default configuration     8-12

disabling     8-21

enabling     8-13

overview     1-6, 8-1

port cost, configuring     8-16

PortFast, configuring     9-2

port priority, configuring     8-15

port states

blocking     8-6

disabled     8-10

forwarding     8-9

learning     8-8

listening     8-7

overview     8-4

port-VLAN cost     8-17

port VLAN priority, configuring     8-16

root switch

election     8-2

parameters (table)     8-3

stable topology and     8-4

Token Ring

overview     8-11

port state, setting     8-20

TrBRF     8-19

TrBRF functional address, setting     8-21

supervisor engine

BOOT environment variable

clearing     31-10, 31-12

displaying     31-12

overview     31-3

setting     31-9, 31-10

configuration register

boot field, setting     31-5

ignore NVRAM, setting     31-8

overview     31-2

ROM monitor baud rate, setting     31-6

setting     31-8

configuring     3-1

console port

establishing connection     2-2

ROM monitor baud rate     31-6

SLIP and     3-9

default boot configuration     31-4

default configuration     3-5

default gateways     3-7

downloading software images     33-3, 33-15

Flash file system

See Flash file system

IP address, setting     3-5, 3-6

management interfaces

me1 (out-of-band), configuring     3-6

overview     3-1

sc0 (in-band), configuring     3-5

sl0 (SLIP), configuring     3-9

me1 (out-of-band management) interface     3-6

preparing to configure     3-4

redundant

configuration guidelines     4-4

console port and     4-2

Flash synchronization     4-12

forcing switchover to standby     4-6

overview     1-10, 4-1

slot assignment     4-2

Supervisor Engine III     4-2

uplink ports, configuring     4-7

verifying status     4-5

ROM monitor     31-2

sc0 (in-band) interface     3-5

sl0 (SLIP) interface     3-9

software description     1-5

software images

downloading     33-3, 33-15

overview     1-5

startup, specifying     31-1

uploading     33-13, 33-25

startup configuration     31-1

static routes     29-8

switchover     4-6

uplink ports, standby, configuring     4-7

uploading software images     33-13, 33-25

switch administration

modules, checking status     21-1

overview     1-10

ports, checking status     21-3

procedures     29-1, 36-1

switch CLI

accessing     2-2

command aliases     2-7

help     2-4

history substitution     2-6

IP addresses, designating     2-8

IP aliases, designating     2-8

MAC addresses, designating     2-8

modes     2-3

modules, designating     2-7

operating     2-3

ports, designating     2-7

VLANs, designating     2-7

Switched Port Analyzer

See SPAN

switching modules

See modules

switch management interfaces

See supervisor engine, management interfaces

switchover

See supervisor engine, switchover

switch TopN reports

background execution     23-2

foreground execution     23-2

metric values (table)     23-2

overview     23-1

running     23-3

viewing     23-3

syslog

buffer size, setting     35-6

configuration, displaying     35-8

configuring     35-4

daemon, configuring     35-7

default configuration     35-4

facilities (table)     35-2

logging levels, setting     35-5

message format     35-3

message log, displaying     35-10

overview     35-1

server, configuring     35-7

session settings, setting     35-4

severity levels (table)     35-3

timestamp, changing enable state     35-6

system clock, setting     29-4

system contact, setting     29-3

system image

switch

downloading     33-3, 33-15

overview     1-5

startup, specifying     31-1

uploading     33-13, 33-25

system location, setting     29-3

system message logging

buffer size, setting     35-6

configuration, displaying     35-8

configuring     35-4

daemon, configuring     35-7

default configuration     35-4

facilities (table)     35-2

logging levels, setting     35-5

message format     35-3

message log, displaying     35-10

overview     35-1

server, configuring     35-7

session settings, setting     35-4

severity levels (table)     35-3

syslog daemon, configuring     35-7

timestamp, changing enable state     35-6

system name

clearing     29-3

configuring     29-2

overview     29-1

system prompt

configuring     29-2

overview     29-1

system reset

scheduling     29-9

T

TACACS+

configuraiton guidelilnes     30-37

configuration guidelines     30-8, 30-45

default configuration     30-7, 30-44

disabling     30-17

enabling     30-13

example configuration     30-34, 30-41, 30-48

key, specifying     30-14

login attempts allowed     30-15

overview     30-2, 30-35, 30-36, 30-41, 30-42, 30-44

timeout interval     30-15

TACACS+ accounting

disabling     30-47

enabling     30-45

Telnet

system message logging settings     35-5

user sessions

disconnecting     21-8

monitoring     21-7

Telnet, executing     21-6

TFTP

downloading software images

example, multiple module     33-10, 33-11, 33-23, 33-24

example, single module     33-9, 33-10, 33-21, 33-22

example, supervisor     33-6, 33-8, 33-18, 33-20

supervisor engine     33-3, 33-15

switching modules     33-4, 33-16

uploading configuration files     34-6

uploading software images     33-13, 33-25

time, setting     29-4

time zone

clearing     37-7

setting     37-5

Token Ring

address-recognized bit     40-9

All-Routes Explorer reduction     40-10

configuration loss thresholds, setting     40-10

default configuration     40-4

DTR     40-4

duplex, setting     40-7

early token release, setting     40-8

filters

clearing     41-4

MAC address filter, adding     41-2

overview     41-1

protocol filter, adding     41-3

frame-copied bit     40-9

frame priority, setting     40-6

overview     40-1

port name, setting     40-5

port transmission mode, setting     40-7

soft error monitoring     40-11

source-route switching     40-3

speed, setting on port     40-6

SRB     40-3

SRT bridging     40-3

STP

See STP, Token Ring

supported features     40-1

TrBRF

functional address, setting     8-21

STP and     8-19

VLANs

overview     11-3

TrBRF     11-3

TrCRF     11-4

Token Ring Timer

See TRT

TopN reports

See switch TopN reports

traceroute

See IP traceroute

translation, IPX on FDDI/CDDI     38-10

transmit queue

drop thresholds     15-14

TrBRF

creating     11-8

functional address, setting     8-21

modifying     11-8

overview     11-3

STP, configuring     8-19

TrCRF

All-Routes Explorer maximum hops     11-10

backup     11-10

creating     11-9

modifying     11-9

overview     11-4

TRequest, FDDI/CDDI and     38-10

troubleshooting

system message logging and     35-1

Token Ring

invalid source MAC addresses     40-13

VMPS     13-8

TRT, FDDI/CDDI and     38-10

trunks

allowed VLANs     12-9

autonegotiation     12-2

default configuration     12-5

disabling     12-10

disabling VLAN 1     12-28

encapsulation types

descriptions (table)     12-3

switch support matrix (table)     12-5

example configurations

802.1Q     12-14

IEEE 802.1Q     12-24

ISL     12-11, 12-12

load sharing     12-18

IEEE 802.1Q

configuring     12-7

restrictions     12-5

ISL, configuring     12-6

ISL/802.1Q negotiating, configuring     12-8

modes (table)     12-2

overview     12-1

possible configurations (table)     12-3

VLANs, allowed     12-9

U

UDLD

configuration, displaying     24-5

default configuration     24-3

disabling globally     24-4

disabling on ports     24-4

enabling globally     24-3

enabling on ports     24-4

overview     24-1

software and hardware requirements     24-2

unclassified frames     15-4

UniDirectional Link Detection protocol

See UDLD

upgrading

minimal downtime     4-8

UplinkFast

configuring     9-7

dummy MAC addresses and     9-7

overview     9-6

uplink ports, standby, configuring     4-7

uploading

configuration files

preparation     34-6, 34-9

running configuration     34-6, 34-9

TFTP     34-6

software images

preparation     33-13, 33-25

supervisor     33-13, 33-25

user-data string, FDDI/CDDI     38-3

user sessions

disconnecting     21-8

monitoring     21-7

V

virtual LAN

See VLANs

VLAN Agents Option     28-5

VLAN Management Policy Server

See VMPS

VLAN Monitor Option     28-4

VLANs

allowed on trunk     12-9

assigning ports to     11-11

bridge forward delay     8-18

bridge hello time     8-18

bridge maximum aging time     8-19

bridge priority     8-17, 8-19

configuration guidelines     11-6

cost     8-17

default configuration     11-6

deleting     11-13

designating on command-line     2-7

Ethernet     11-7

FDDI     11-8

in-band (sc0) interface assignment     11-2

IP subnetworks and     11-2

mapping 802.1Q to ISL     11-12

native

802.1Q and     12-5

FDDI/CDDI     38-5

overview     1-6, 11-1

ports, assigning to     11-11

port VLAN priority     8-16

protocol filtering and     20-1

sc0 (in-band) interface assignment     11-2

Token Ring

All-Routes Explorer maximum hops     11-10

backup     11-10

creating     11-8, 11-9

modifying     11-8, 11-9

overview     11-3

TrBRF     11-3

TrCRF     11-4

TrBRF     11-8

TrCRF

backup     11-10

creating     11-9

trunks

See trunks

VTP domain and     11-1

VLAN Trunk Protocol

See VTP

VLAN trunks

See trunks

VMPS

administering     13-6

configuring     13-5

database

creating     13-4

downloading     13-7

example configuration file     13-9

default configuration     13-2

disabling     13-5

dynamic port membership

configuring     13-5

example     13-10

overview     13-1

reconfirming     13-7

troubleshooting     13-8

error messages (table)     13-8

example configurations

database configuration file     13-9

dynamic port VLAN membership     13-10

monitoring     13-6

overview     13-1

reconfirming membership     13-7

troubleshooting     13-8

VTP

advertisements     10-2

client, configuring     10-6

configuration guidelines     10-5

default configuration     10-5

disabling     10-7

domains     10-2

IEEE 802.10 trunks and     39-2

modes

client     10-2

server     10-2

transparent     10-2

monitoring     10-10

overview     10-1

pruning

configuring     10-9

disabling     10-10

overview     10-3

server, configuring     10-6

statistics     10-10

transparent mode, configuring     10-7

version 2

disabling     10-8

enabling     10-7

overview     10-3

VLANs and     11-1

VTP pruning

configuring     10-9

disabling     10-10

overview     10-3