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, setting4-5

802.1x authentication

overview27-7

A

accounting27-60

disabling27-62

enabling27-60

example configuration27-63

RADIUS

accounting events27-57

creating accounting records27-58

example configuration27-63

overview27-57

servers, specifying27-58

suppressing accounting27-59

updating the server27-59

TACACS+

accounting events27-57

configuration guidelines27-60

creating accounting records27-58

example configuration27-63

overview27-57

suppressing accounting27-59

updating the server27-59

addresses

IP

adding to IP permit list17-2

aliases, creating26-7

automatic assignment3-2

clearing from IP permit list17-5

designating2-9

DHCP and3-10

in-band (sc0) interface and3-5

out-of-band management Ethernet (me1) interface and3-6

SLIP (sl0) interface and3-10

MAC

designating2-9

administration

switch26-1, 34-1

administrative groups, EtherChannel6-2

advertisements, VTP9-2

aliases

command, creating26-5

IP

creating26-7

designating2-9

ARP

configuring permanent and static entries26-7

audiencexxi

authentication

example configuration27-49

Kerberos

configuration guidelines27-11

credentials forwarding, disabling27-37

credentials forwarding, enabling27-36

enabling27-32

overview27-4

realm, defining27-33

servers, specifying27-33

SRVTAB files27-34

local

configuration guidelines27-11

default configuration27-10, 27-60

disabling27-16

enable password, setting27-15

enabling27-14

overview27-2

password recovery27-17

login

enabling27-12, 27-13

overview27-2

NTP35-4

overview27-2, 27-57

RADIUS

configuration guidelines27-11

deadtime, setting27-28

default configuration27-10, 27-60

disabling27-30

enabling27-25

key, clearing27-29

key, specifying27-25

overview27-4

retransmit count, setting27-27

servers, clearing27-29

servers, specifying27-24

timeout, setting27-26

TACACS+

configuration guidelines27-11

default configuration27-10, 27-60

disabling27-23

enabling27-19

example configuration27-49

key, specifying27-20

login attempts allowed27-21

overview27-3

timeout interval27-20

authorization

configuration guidelines27-52

default configuration27-52

disabling authorization27-54

enabling authorization27-53

example configuration27-56

overview27-50

TACACS+

authorization configuration guidelines27-52

authorization events27-50

authorization primary options and fallback options27-51

command authorization27-51

example configuration27-56

overview27-50

autonegotiation

duplex4-6

speed4-5

trunks11-2

auxiliary VLANs10-3

dynamic port VLAN membership12-11

B

BackboneFast

disabling8-15

displaying statistics8-15

enabling8-14

figure

adding a switch8-16

overview8-12

banner

See login banner

BOOT environment variable

clearing28-8, 28-9

default28-4

displaying28-9

overview28-3, 28-4

setting28-7, 28-8

boot field

overview28-3

setting28-5

booting

ignoring NVRAM28-7

BPDU guard

disabling8-7

enabling8-6

note8-6

BPDU overview7-2

bridge ID and MAC addresses7-12

bridge ID priority, PVST+7-15

bridge protocol data units

See BPDUs

C

Catalyst 2948G, overview (table)1-2

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

Catalyst 4000 family, overview (table)1-1

CDP

default configuration20-2

disabling

globally20-2

on ports20-3

displaying neighbor information20-5

enabling

globally20-2

on ports20-3

holdtime, setting20-4

message interval, setting20-4

overview20-1

CGMP

disabling15-8

enabling15-5

joining multicast group15-2

leave processing

disabling15-8

enabling15-5

leaving multicast group15-3

multicast group

clearing15-18

configuring15-7, 15-17

multicast router ports

clearing15-18

specifying15-17

overview15-2

statistics, viewing15-7

channel modes, EtherChannel (table)6-3

checksum, verifying Flash file30-6

CIDR

static routes and26-9

Cisco Discovery Protocol

See CDP

Cisco Group Management Protocol

See CGMP

CiscoWorks200023-4

classified frames14-3

Classless InterDomain Routing

See CIDR

clear boot system flash command28-8

clearing the configuration31-9

CLI

ROM monitor2-9

switch

accessing2-2

help2-4

history substitution2-6

IP addresses, designating2-9

IP aliases, designating2-9

MAC addresses, designating2-9

modules, designating2-8

operating2-3

ports, designating2-8

VLANs, designating2-8

switch CLI

command aliases2-7

clock, setting26-4

command aliases2-7

command aliases, creating26-5

community ports10-8

community strings

defining23-3

overview23-2

CONFIG_FILE variable

recurrence, setting28-6

configuration

MISTP7-23

configuration, clearing31-9

configuration files

creating31-2

downloading

RCP31-7

TFTP31-4

via RCP31-6, 31-7

via TFTP31-4

guidelines for creating31-1

running configuration

downloading via RCP31-7

downloading via TFTP31-4

uploading via RCP31-8

uploading via TFTP31-5

uploading

preparation31-5, 31-8

to RCP server31-8

to TFTP server31-5

configuration guidelines

RADIUS accounting27-60

TACACS+ accounting27-60

configuration register

boot field

switch, setting28-5

CONFIG_FILE recurrence, setting28-6

default setting28-4

ignoring NVRAM at boot28-7

overview28-2

console port

establishing a connection2-2

SLIP and3-9

system message logging settings33-5

user sessions

disconnecting19-8

monitoring19-7

contact, setting26-3

conventions, documentationxxiv

CoS

default switch CoS14-5

drop thresholds

mapping14-6

transmit14-3

port and

reverting to default14-5

values14-3

CWSI Campus23-4

D

database

VMPS

example configuration file12-8

date, setting26-4

daylight saving time

disabling adjustment35-7

enabling adjustment35-6

default configuration

CDP20-2

DNS34-1

dynamic port membership12-2

errdisable timeout4-6

EtherChannel6-4

Ethernet4-3

Fast EtherChannel6-4

Fast Ethernet4-3

Fast Ethernet trunks11-5

Gigabit EtherChannel6-4

Gigabit Ethernet5-6

Gigabit Ethernet trunks11-5

GMRP15-9

IP permit list17-2

Kerberos authentication27-10

local authentication27-10

NTP35-2

protocol filtering18-2

QoS14-4

RADIUS accounting27-60

RADIUS authentication27-10

SNMP23-3

supervisor engine3-5

switch boot configuration28-4

system message logging33-4

TACACS+ accounting27-60

TACACS+ authentication27-10

UDLD22-3

VLANs10-3

VMPS12-2

VTP9-5

default gateway, configuring3-7

DHCP

in-band (sc0) interface and3-10

releasing lease3-11

renewing lease3-11

DISL

See DTP

DNS

default configuration34-1

disabling34-3

domain name

clearing34-3

setting34-2

enabling34-2

overview34-1

server

clearing34-3

specifying34-2

setting up34-2

system name and26-1

system prompt and26-1

documentation, relatedxxiii

document conventionsxxiv

document organizationxxi

domain name

clearing34-3

setting34-2

Domain Name System

See DNS

downloading

configuration files

RCP31-7

TFTP31-4

via RCP31-6, 31-7

via TFTP31-4

software images

overview29-1, 29-6

preparation29-2, 29-6

supervisor29-2, 29-6

drop thresholds

CoS mapping14-6

transmit queue14-3

DTP

non-Cisco devices and11-3

overview11-2

duplex

Fast Ethernet4-6

dynamic port VLAN membership

configuring12-5

default configuration12-2

example12-9

for auxiliary VLANs12-11

overview12-1

troubleshooting12-7

Dynamic Trunking Protocol

See DTP

E

enable mode, switch CLI2-3

enable password

recovering lost27-17

setting27-15

encapsulation type descriptions, trunks (table)11-3

environment variables

BOOT

clearing28-8

displaying28-9

overview28-3, 28-4

setting28-7, 28-8

errdisable timeout, configuring4-6

error messages

system message logging (syslog)33-1

VMPS (table)12-7

EtherChannel

administrative groups

configuring6-6

overview6-2

channel modes (table)6-3

configuration example6-12

configuration guidelines6-4

configuring6-5

default configuration6-4

EtherChannel IDs6-2

example configuration6-14, 11-8

frame distribution6-3

hardware support6-4

modes6-3

overview6-1

PAgP and6-2

PAgP statistics, displaying6-11

port costs6-7

port-VLAN costs6-8

statistics, displaying6-10

Ethernet

autonegotiation, speed4-5

checking connectivity4-7

default configuration4-3

overview4-1

port duplex, setting4-6

port name, setting4-3

port priority, setting4-4

port speed, setting4-5

protocol filtering

See protocol filtering

examples, conventionsxxiv

F

Fast EtherChannel

See EtherChannel

Fast Ethernet

autonegotiation, speed4-5

checking connectivity4-7

default configuration4-3

EtherChannel

See EtherChannel

overview4-1

port duplex, setting4-6

port name, setting4-3

port priority, setting4-4

port speed, setting4-5

protocol filtering

See protocol filtering

trunks

See trunks

fiber-optic, detecting unidirectional links22-1

filters

protocol

See protocol filtering

Flash file system

checksum, verifying30-6

copying files30-3

default device, setting30-1

deleting files30-5

listing files30-2

restoring deleted files30-5

verifying file checksum30-6

flow control

Gigabit Ethernet

configuring5-8

overview5-1

frame classification14-3

frame distribution, EtherChannel6-3

G

GARP Multicast Registration Protocol

See GMRP

GARP timers13-7, 15-14

Gigabit EtherChannel

See EtherChannel

Gigabit Ethernet

checking connectivity5-10

default configuration5-6

flow control

configuring5-8

overview5-1

port name, setting5-7

port negotiation

configuring5-9

overview5-3

possible link states (table)5-3

port priority, setting5-8

protocol filtering

See protocol filtering

trunks

See trunks

GMRP

default configuration15-9

disabling

globally15-16

per-port15-11

enabling

globally15-10

per-port15-10

forward-all option

disabling15-12

enabling15-12

hardware and software requirements15-9

overview15-3

registration

fixed15-13

forbidden15-14

normal15-13

statistics

clearing15-16

viewing15-15

timers15-14

GVRP

disabling

globally13-9

on 802.1Q ports13-9

enabling

globally13-3

on 802.1Q ports13-4

registration

fixed13-5

forbidden13-6

normal13-5

statistics

clearing13-8

viewing13-8

timers13-7

H

history

switch CLI2-6

I

ICMP

ping

executing19-9

overview19-8

time exceeded messages19-11

traceroute and19-11

IEEE 802.1Q

configuring11-5

example configuration11-8, 11-18

mapping VLANs to ISL10-5

overview11-1

restrictions11-4

supported switches (table)11-4

IEEE 802.1X27-7

IGMP

configuration guidelines15-4

joining multicast group15-2

leaving multicast group15-3

overview15-2

images

See software images

in-band (sc0) interface

configuring3-5

DHCP and3-10

IP address, assigning3-6

overview3-1, 3-5

RARP and