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

802.1Q

example11-8, 11-18

mapping VLANs to ISL10-5

overview11-1

restrictions11-4

supported switches (table)11-4

802.1x authentication

configurable parameters27-9

overview27-7

A

accelerator module, switch fabric

See switch fabric accelerator module

accounting

configuration guidelines27-60

disabling27-62

enabling27-60

overview27-57

See Radius accounting; TACACS+ accounting

acronymsA-1to A-9

adding a multicast filter profile15-21

addresses

See IP addresses; MAC addresses

Address Resolution Protocol

See ARP

administration

switch26-1, 34-1

administrative groups, EtherChannel6-6

advertisements

See VTP advertisements

aliases

See command aliases; IP aliases

aliases, command2-7

ARP

configuring entries26-7

assigning port Filter associations15-24

attempts, limiting telnet27-12

audiencexxi

authentication

overview27-2

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

authorization

overview27-50

See also TACACS+ authorization27-52

autonegotiation

duplex4-5

speed4-5

trunks11-2

auxiliary VLANs

dynamic port VLAN membership12-11

software support10-3

B

Backbone Fast

multiple spanning tree7-13

BackboneFast

adding a switch (figure)8-18

disabling8-17

displaying statistics8-16

enabling8-16

overview8-13

Backplane Channel module32-4

banners

See login banners

boot configuration

clearing system flash28-8

ignoring NVRAM28-6

BOOT environment variables

clearing28-8, 28-9

default28-4

displaying28-9

overview28-3, 28-4

setting28-7, 28-8

boot field

overview28-3

setting28-5

BPDU Filter

multiple spanning tree7-13

BPDU Guard

multiple spanning tree7-13

BPDU guard

disabling8-9

enabling8-8

BPDU skewing

configuring7-41

understanding7-41

BPDUs overview7-2

bridge identifiers

MAC addresses7-12

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 configuration20-2

disabling globally20-2

disabling on ports20-3

displaying neighbor information20-5

enabling globally20-2

enabling on ports20-3

overview20-1

setting holdtime20-4

setting message interval20-4

CGMP

clearing multicast groups15-18

clearing multicast router ports15-18

configuring multicast groups15-7, 15-17

disabling15-9

disabling fast-leave processing15-8

displaying multicast groups15-7

enabling15-5

enabling fast-leave processing15-5, 15-6

joining multicast groups15-2

leaving multicast group15-2

leaving multicast groups15-2

overview15-1

specifying multicast router ports15-17

viewing statistics15-8

channel modes, EtherChannel (table)6-5

LACP6-17

checksum, verifying Flash file30-7

CIDR

static routes and26-9

Cisco Discovery Protocol

See CDP

Cisco Group Management Protocol

See CGMP

CiscoWorks200023-13

CIST7-13

classification

frames14-3

Classless InterDomain Routing

See CIDR

clear boot system flash command28-8

CLI

command aliases2-7

ROM monitor2-9

switch

accessing2-2

designating IP addresses2-8

designating IP aliases2-8

designating MAC addresses2-8

designating modules2-7

designating ports2-7

designating VLANs2-7

help2-4

history substitution2-6

operating2-3

clock, setting26-4

command aliases

creating26-5

using2-7

command line interface

See CLI

Common and Internal Spanning Tree

See also CIST7-13

Common Spanning Tree

See CST7-13

community ports

definition10-8

community strings

defining23-5

overview23-2

CONFIG_FILE variable

setting recurrence28-6

configuration

MISTP7-48

configuration, clearing31-8

configuration files

creating31-2

downloading via RCP31-6

downloading via rcp31-6

downloading via TFTP31-4

guidelines for creating31-1

uploading

preparation31-7

uploading preparation31-5

uploading to rcp server31-7

uploading to TFTP server31-5

configuration guidelines

TACACS+ accounting27-60

configuration register

default setting28-4

ignoring NVRAM at boot28-6

overview28-2

setting boot field28-5

setting CONFIG_FILE recurrence28-6

configurations

IGMP traffic filtering15-19

configuring15-21

configuring port IP multicast filtering15-21

console port

disconnecting user sessions19-9

establishing connections2-2

monitoring user sessions19-8

SLIP and3-9

system message logging settings33-5

conventions, documentxxiv

CoS

configuring default switch values14-5

drop thresholds

mapping14-6

transmit14-3

Layer 2 CoS values, definition14-2

reverting to default14-5

CST7-13

common spanning tree7-17

D

databases

See VMPS databases

date, setting26-4

daylight saving time

disabling adjustment35-7

enabling adjustment35-5

default configuration

Ethernet4-3

Fast Ethernet4-3

TACACS+ accounting27-60

default gateway, configuring3-7

default IGMP filter configuration15-20

denying filter match-action15-22

DHCP

releasing lease3-11

renewing lease3-11

sc0 interface and3-10

disabling IGMP multicast filtering15-20

DISL

See DTP

DNS

clearing domain names34-3

default configuration34-1

disabling34-3

enabling34-2

overview34-1

setting domain names34-2

setting up34-2

system name and26-1

system prompt and26-1

DNS servers

clearing34-3

specifying34-2

documentation

conventionsxxiv

organizationxxi

relatedxxiii

domain names

clearing34-3

setting34-2

Domain Name System

See DNS

downloading

configuration files31-4, 31-6

software images29-2, 29-6

drop thresholds

CoS mapping14-6

transmit queue14-3

DTP

non-Cisco devices and11-3

overview11-2

duplex mode

Fast Ethernet4-5

Dynamic Host Configuration Protocol

See DHCP

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

enabling IGMP multicast filtering15-20

enabling IGMP traffic filtering15-21

encapsulation type descriptions, trunks (table)11-3

encryption

See secure shell encryption

environment variables

See BOOT environment variables

errdisable timeout, configuring4-6

error messages

system message logging (syslog)33-1

VMPS (table)12-6

establishing a multicast filter profile15-21

EtherChannel

administrative groups6-6

channel modes (table)6-5

LACP6-17

configuration guidelines6-3

configuring6-6

configuring administrative groups6-7

displaying PAgP statistics6-12

displaying statistics6-11

EtherChannel IDs6-6

example configuration11-8

frame distribution6-2

hardware support6-2

maximum number of channels supported6-4

modes6-5

modes, using LACP6-17

overview6-1

PAgP and6-5

port costs6-8

port-VLAN costs6-9

See also Fast EtherChannel; Gigabit EtherChannel

Ethernet

autonegotiation4-5

checking connectivity4-7

default configuration4-3

overview4-1

See protocol filtering

setting port duplex4-5

setting port name4-3

setting port priority4-4

setting port speed4-5

examples, general conventionsxxiv

F

Fast EtherChannel

example6-13

overview6-2

See also EtherChannel; Gigabit EtherChannel

Fast Ethernet

autonegotiation4-5

checking connectivity4-7

default configuration4-3

overview4-1

See protocol filtering

setting port duplex4-5

setting port name4-3

setting port priority4-4

setting port speed4-5

fiber-optic cables, detecting unidirectional links22-1

filtering

IGMP actions15-19

filters, protocol

See protocol filtering

Flash file system

copying files30-4

deleting files30-5

listing files30-3

restoring deleted files30-6

setting configuration modes30-2

setting default device30-1

verifying checksum30-7

verifying file checksum30-7

flow control

configuring5-8

overview5-1

forward delay timer7-38

frame classification

overview14-3

frame distribution, EtherChannel6-2

G

GARP Multicast Registration Protocol

See GMRP

GARP timers

setting13-7, 15-14

GARP VLAN Registration Protocol

See GVRP

Gigabit EtherChannel

example6-15

See also EtherChannel; Fast EtherChannel

Gigabit Ethernet

checking connectivity5-10

configuring flow control5-8

configuring port negotiation5-9

default configuration5-6

flow control5-1

port negotiation5-3

port negotiation link states (table)5-3

setting port names5-7

setting port priority5-8

GMRP

clearing statistics15-16

default configuration15-10

disabling forward-all option15-12

disabling globally15-16

disabling per-port15-11

enabling forward-all option15-12

enabling globally15-10

enabling per-port15-11

overview15-3

registration15-13to 15-14

setting timers15-14

software requirements15-9

viewing statistics15-15

group profiles

IGMP multicast15-19

GVRP

clearing statistics13-8

configuring registration13-5

disabling13-9

enabling13-3

registration13-6

setting timers13-7

viewing statistics13-8

H

hello time

timer7-38

history

switch CLI2-6

I

I-BPDU7-13

ICMP

IP traceroute19-13

time exceeded messages19-13

using ping19-9to 19-10

ID and MAC addresses, bridge7-12

IEEE 802.1Q

example11-8

overview11-1

restrictions11-4

See 802.1Q

IEEE 802.1x

See 802.1x authentication

IGMP

configuration guidelines15-4

joining multicast groups15-2

leaving multicast groups15-2

overview15-1

using traffic filtering15-19

IGMP filtering

software requirements15-19

IGMP filter match-action

denying and verifying15-22

permitting and verifying15-22

IGMP multicast filtering

disabling and verifying15-20

enabling and verifying15-20

IGMP traffic filtering15-19

images

See software images; system images

in-band (sc0) interface

See sc0 interface

inferior BPDUs, BackboneFast and8-14

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 ISTP7-13

Internet Control Message Protocol

See ICMP

Internet Group Management Protocol

See IGMP

Inter-Switch Link

See ISL

IP addresses

adding to IP permit list17-2

automatic assignment3-2

CIDR26-9

clearing from IP permit list17-4

creating aliases26-6

default gateway3-7

designating2-8

DHCP and3-10

me1 interface and3-6

RARP and3-10

sc0 interface and3-5

sl0 interface and3-10

static routes26-8

VLANs and10-2

IP aliases

creating26-6

designating2-8

IP multicast

CGMP and15-4

GMRP and15-9

group entries15-16

overview15-1

router ports and group entries15-16

See also multicast groups; multicast routers

IP permit list

adding addresses17-2

clearing entries17-4

default configuration17-2

disabling17-4

enabling17-3

overview17-1

IP traceroute

executing19-13

overview19-13

ISL

mapping 802.1Q VLANs10-5

overview11-1

supported switches (table)11-4

isolated ports

definition10-8

ISTP7-13

K

Kerberos authentication

configuration guidelines27-11

copying SRVTAB files27-34

defining realm27-33

disabling credentials forwarding27-37

enabling27-32

enabling credentials forwarding27-36

overview27-4

servers, specifying27-33

terminology27-5, 27-8

keys

See RADIUS keys; TACACS+ keys

L

LACP

configuration parameters6-17

configuration procedures6-18

modes6-16

Layer 2 traceroute

utility19-11

leave processing, CGMP

disabling15-8

enabling15-5, 15-6

limiting telnet attempts27-12

Link Aggregation Control Protocol

See LACP

listing all multicast filters15-23

listing port filter associations15-24

load balancing7-12

load sharing, trunking and11-12

local authentication

configuration guidelines27-11

default configuration27-10, 27-60

disabling27-16

enabling27-14

overview27-2

password recovery27-17

setting enable password27-15

location, setting