Catalyst 2940 Switch Command Reference, Release 12.1(13)AY
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Index

Table Of Contents

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

Index

A

aaa authentication command     2-1

abort command     2-276

access ports     2-234

aggregate-port learner     2-95

allowed VLANs, setting     2-246

apply command     2-276

archive download-sw command     2-3

archive tar command     2-5

archive upload-sw command     2-8

audience     ix

autonegotiation of duplex mode     2-52

B

BackboneFast, for STP     2-201

booting, displaying environment variables     2-105

boot private-config-file command     2-10

BPDU filtering, for spanning tree     2-202, 2-218

BPDU guard, for spanning tree     2-204, 2-218

broadcast suppression level

configuring     2-230

displaying     2-171

broadcast traffic counters     2-137

C

caution, description     x

channel-group command     2-11

channel-protocol command     2-14

class of service

See CoS

clear interface command     2-16

clear lacp command     2-17

clear mac address-table command     2-18

clear pagp command     2-19

clear port-security dynamic command     2-20

clear port-security sticky command     2-21

clear setup express command     2-23

clear spanning-tree counters command     2-24

clear vmps statistics command     2-25

clear vtp counters command     2-26

cluster commander-address command     2-27

cluster discovery hop-count command     2-29

cluster enable command     2-30

cluster holdtime command     2-31

cluster management-vlan command     2-32

cluster member command     2-33

cluster run command     2-35

clusters

adding candidates     2-33

binding to HSRP     2-36

building manually     2-33

command switch

candidates     2-110

enabling     2-30

holdtime     2-31

hop-count     2-29

identity     2-107

MAC address     2-27

management vlan     2-32

no cluster run     2-35

rcommand     2-100

redundancy     2-36

timer     2-38

VMPS server     2-281

communicating with members by using Telnet     2-100

displaying

candidate switches     2-110

member switches     2-112

status     2-107

heartbeat messages

duration after which switch declared down     2-31

interval between     2-38

hop-count limit for extended discovery     2-29

HSRP standby groups     2-36

redundancy     2-36

SNMP trap     2-194

cluster standby-group command     2-36

cluster timer command     2-38

command modes defined     1-2

command switch

See clusters

configuration files, private     2-10

configuring multiple interfaces     2-64 to  2-65

config-vlan mode

description     1-4

entering     2-264

summary     1-2

conventions

command     ix

for examples     x

publication     ix

text     ix

CoS

priority queue, assigning values to     2-293

priority queue mapping, displaying     2-191

WRR bandwidth allocation, displaying     2-190

WRR weights, assigning to CoS priority queues     2-291

cross-stack UplinkFast, for STP     2-222

D

debug etherchannel command     A-2

debug pagp command     A-3

debug pm command     A-4

debug spanning-tree backbonefast command     A-8

debug spanning-tree bpdu command     A-9

debug spanning-tree bpdu-opt command     A-10

debug spanning-tree command     A-6

debug spanning-tree switch command     A-11

debug spanning-tree uplinkfast command     A-13

debug sw-vlan command     A-14

debug sw-vlan ifs command     A-15

debug sw-vlan notification command     A-16

debug sw-vlan vtp command     A-17

debug udld command     A-19

define interface-range command     2-39

delete command     2-41

directories, deleting     2-41

document conventions     ix

domain name, VTP     2-283, 2-287

dot1x default command     2-42

dot1x max-req command     2-43

dot1x multiple-hosts command     2-44

dot1x port-control command     2-45

dot1x re-authenicate command     2-47

dot1x re-authenication command     2-48

dot1x timeout quiet-period command     2-49

dot1x timeout re-authperiod command     2-50

dot1x timeout tx-period command     2-51

DTP     2-235

DTP flap, error recovery timer     2-56

duplex command     2-52

dynamic-access ports, configuring     2-232

Dynamic Trunking Protocol

See DTP

E

EAP-request/identity frame     2-43, 2-51

environment variables, displaying     2-105

errdisable detect command     2-54

errdisable recovery command     2-56

EtherChannel

assigning Ethernet interface to channel group     2-11

creating port-channel logical interface     2-63

debug messages, displaying     A-2 to  A-3

displaying     2-124

LACP, modes     2-11

load-distribution methods     2-98

PAgP

aggregate-port learner     2-95

clearing channel-group information     2-17, 2-19

debug messages, displaying     A-3

displaying     2-143, 2-160

error recovery timer     2-56

learn method     2-95

modes     2-11

priority of interface for transmitted traffic     2-97

Ethernet controller, internal register display     2-114

Ethernet statistics, collecting     2-102

examples, conventions for     x

exit command     2-276

express setup-related commands     2-23, 2-103, 2-166

extended discovery of candidate switches     2-29

extended system ID for STP     2-210

Extensible Authentication Protocol-request/identity frame

See EAP-request/identity frame

F

fan information, displaying     2-122

file name, VTP     2-283

files, deleting     2-41

flowcontrol command     2-58

flow-control packets

receiving     2-58

sending     2-58

G

global configuration mode     1-2, 1-4

H

heartbeat messages

duration after which switch declared dead     2-31

interval between     2-38

holdtime for clusters     2-31

hop-count limit for clusters     2-29

Hot Standby Router Protocol

See HSRP

HSRP

binding HSRP group to cluster     2-36

standby group     2-36

I

IDS, using with SPAN     2-85

IEEE 802.1X commands

authentication methods     2-1

displaying settings     2-118

EAP-request/identity frame

response time     2-51

sending     2-43

manual control     2-45

multiple hosts     2-44

quiet state, setting     2-49

re-authenticaton

initiating     2-47

periodic     2-48

re-authenticaton attempts, interval between     2-50

resetting parameters     2-42

IGMP snooping

adding ports statically     2-74

configuration, displaying     2-139

enabling     2-67

Immediate-Leave processing     2-71

MAC address tables     2-147

multicast router ports, displaying     2-141

multicast routers     2-72

per VLAN     2-70

source-only-learning     2-68

images

See software images

Immediate-Leave feature, MVR     2-90

Immediate-Leave processing     2-71

interface command     2-61

interface configuration mode     1-2, 1-4

interface port-channel command     2-63

interface range command     2-64

interface-range macros     2-39

interfaces

assigning Ethernet interface to channel group     2-11

configuring     2-52

configuring multiple     2-64 to  2-65

creating port-channel logical     2-63

disabling     2-192

restarting     2-192

internal registers, displaying     2-114

Intrusion Detection System

See IDS

ip address command     2-66

ip addresses, setting     2-66

ip igmp snooping command     2-67

ip igmp snooping source-only-learning command     2-68

ip igmp snooping vlan command     2-70

ip igmp snooping vlan immediate-leave command     2-71

ip igmp snooping vlan mrouter command     2-72

ip igmp snooping vlan static command     2-74

IP multicast addresses     2-87

J

jumbo frames

displaying setting     2-174

setting switch for     2-251

L

LACP

See EtherChannel

lacp port-priority command     2-75

lacp system-priority command     2-76

Layer 2 traceroute

IP addresses     2-256

MAC addresses     2-253

line configuration mode     1-3, 1-5

Link Aggregation Control Protocol

See EtherChannel

link flap

enable error detection for     2-54

enable timer to recover from error state     2-56

load-distribution methods for EtherChannel     2-98

logical interface     2-63

loop guard, for spanning tree     2-211, 2-214

M

MAC addresses

and port security     2-238

clearing notification global counters     2-18

displaying

aging time     2-145

dynamic     2-145

multicast entries     2-147

notification setting     2-149

number of addresses     2-145

per interface     2-145

per VLAN     2-145

secure     2-162

static     2-145

dynamic

aging time     2-77

deleting     2-18

displaying     2-145

enabling MAC address notification     2-79

secure

adding     2-238

displaying     2-162

static

adding     2-81

displaying     2-145

sticky

configuring manually     2-238

enabling sticky learning     2-238

learning dynamically     2-238

mac address-table aging-time command     2-77

mac address-table notification command     2-79

mac address-table static command     2-81

MAC notification feature

clearing global counters     2-18

configuring     2-79

enabling     2-79

macros, interface range     2-39

manual

audience     ix

maximum transmission unit

See MTU

member switches

See clusters

mls qos trust command     2-82

mode, MVR     2-87

monitor session command     2-84

MTU

configuring size     2-251

displaying global setting     2-174

multicast groups

See IGMP snooping

multicast groups, MVR     2-88

multicast router learning method     2-72

multicast router ports, configuring     2-72

multicast suppression level

configuring     2-230

displaying     2-171

enabling     2-230

multicast traffic counters     2-137

multicast VLAN, MVR     2-88

multicast VLAN registration

See MVR

MVR

configuring     2-87

configuring interfaces     2-92

displaying     2-154

Immediate Leave feature     2-90

receiver port     2-92

source port     2-92

mvr command     2-87

mvr group command     2-88

mvr immediate command     2-90

mvr type command     2-92

mvr vlan group command     2-94

N

native VLANs, configuring     2-246

note, description     x

no vlan command     2-264, 2-273

P

PAgP

See EtherChannel

pagp learn-method command     2-95

pagp port-priority command     2-97

password, VTP     2-283, 2-287

PIM-DVMRP, as multicast router learning method     2-72

Port Aggregation Protocol

See EtherChannel

port-channel load-balance command     2-98

Port Fast, for spanning tree     2-220

port ranges, defining     2-39

ports, debug messages, display     A-4

port security

aging     2-242

displaying     2-162

enabling     2-238

violation error recovery timer     2-56

port trust states for QoS     2-82

private configuration files     2-10

privileged EXEC mode     1-2 to  1-3

protected ports

displaying     2-135

enabling     2-245

pruning

VLANs     2-246

VTP

displaying interface information     2-130

enabling     2-283, 2-287

publications, related     x

Q

QoS

configuration information, displaying     2-150

port trust states     2-82

queues

CoS-to-egress-queue map     2-293

WRR weights     2-291

quality of service

See QoS.

querytime, MVR     2-87

R

rcommand command     2-100

receiver port, MVR     2-92

receiving flow-control packets     2-58

recovery mechanism

causes     2-56

displaying     2-123

timer interval     2-56

redundancy for cluster switches     2-36

reset command     2-276

rmon collection stats command     2-102

root guard, for spanning tree     2-211

S

sending flow-control packets     2-58

setup express command     2-103

show boot command     2-105

show changes command     2-276

show cluster candidates command     2-110

show cluster command     2-107

show cluster members command     2-112

show controllers ethernet-controller command     2-114

show current command     2-276

show dot1x command     2-118

show env command     2-122

show errdisable recovery command     2-123

show etherchannel command     2-124

show file command     2-127

show interfaces command     2-130

show interfaces counters command     2-137

show ip igmp snooping command     2-139

show ip igmp snooping mrouter command     2-141

show lacp command     2-143

show mac address-table command     2-145

show mac address-table multicast command     2-147

show mac address-table notification command     2-149

show monitor command     2-152

show mvr command     2-154

show mvr interface command     2-156

show mvr members command     2-158

show pagp command     2-160

show port-security command     2-162

show proposed command     2-276

show running-config vlan command     2-164

show setup express command     2-166

show spanning-tree command     2-167

show storm-control command     2-171

show system mtu command     2-174

show udld command     2-175

show version command     2-178

show vlan command     2-179

show vlan command fields     2-180

show vmps command     2-182

show vtp command     2-185

show wrr-queue bandwidth command     2-190

show wrr-queue cos-map command     2-191

shutdown command     2-192

shutdown vlan command     2-193

SNMP host, specifying     2-196

snmp-server enable traps command     2-194

snmp-server host command     2-196

snmp trap mac-notification command     2-199

SNMP traps

enabling MAC address notification     2-79

enabling MAC address notification traps     2-199

software images

deleting     2-41

downloading     2-3

upgrading     2-3

uploading     2-8

software version, displaying     2-178

source ports, MVR     2-92

SPAN

and IDS     2-85

configuring     2-84

displaying     2-152

sessions

add interfaces to     2-84

displaying     2-152

start new     2-84

spanning-tree backbonefast command     2-201

spanning-tree bpdufilter command     2-202

spanning-tree bpduguard command     2-204

spanning-tree cost command     2-206

spanning-tree etherchannel command     2-208

spanning-tree extend system-id command     2-210

spanning-tree guard command     2-211

spanning-tree link-type command     2-213

spanning-tree loopguard default command     2-214

spanning-tree mode command     2-215

spanning-tree portfast (global configuration) command     2-218

spanning-tree portfast (interface configuration) command     2-220

spanning-tree port-priority command     2-216

Spanning Tree Protocol

See STP

spanning-tree stack-port command     2-222

spanning-tree uplinkfast command     2-223

spanning-tree vlan command     2-225

speed command     2-228

static-access ports, configuring     2-232

statistics, Ethernet group     2-102

sticky learning, enabling     2-238

storm control

broadcast, enabling     2-230

displaying     2-171

multicast, enabling     2-230

unicast, enabling     2-230

storm-control command     2-230

STP

BackboneFast     2-201

debug message display

BackboneFast events     A-8

optimized BPDUs handling     A-10

spanning-tree activity     A-6

switch shim     A-11

transmitted and received BPDUs     A-9

UplinkFast     A-13

detection of indirect link failures     2-201

EtherChannel misconfiguration     2-208

extended system ID     2-210

path cost     2-206

protocol mode     2-215

root port

accelerating choice of new     2-223

accelerating choice of new root in a stack     2-222

cross-stack UplinkFast     2-222

loop guard     2-211

preventing from becoming designated     2-211

restricting which can be root     2-211

root guard     2-211

UplinkFast     2-223

root switch

affects of extended system ID     2-210, 2-226

hello-time     2-225

interval between BDPU messages     2-225

interval between hello BPDU messages     2-225

max-age     2-225

port priority for selection of     2-216

primary or secondary     2-225

switch priority     2-225

state changes

blocking to forwarding state     2-220

enabling BPDU filtering     2-202, 2-218

enabling BPDU guard     2-204, 2-218

enabling Port Fast     2-218, 2-220

enabling timer to recover from error state     2-56

forward-delay time     2-225

length of listening and learning states     2-225

shutting down Port Fast-enabled ports     2-218

state information display     2-167

VLAN options     2-225

Switched Port Analyzer

See SPAN

switching characteristics

modifying     2-236

returning to interfaces     2-236

switchport access command     2-232

switchport mode command     2-234

switchport nonegotiate command     2-236

switchport port-security aging command     2-242

switchport port-security command     2-238

switchport priority extend command     2-244

switchport protected command     2-245

switchports, displaying     2-130

switchport trunk command     2-246

switchport voice vlan command     2-249

system mtu command     2-251

T

tar files, creating, listing, and extracting     2-5

Telnet to cluster switches     2-100

tips, description     x

traceroute, Layer 2

See Layer 2 traceroute

traceroute mac command     2-253

traceroute mac ip command     2-256

trunk ports, configuring     2-234

trunks, to non-DTP device     2-235

trusted boundary for QoS     2-82

U

UDLD

aggressive mode     2-259, 2-261

debug messages, displaying     A-19

enabling globally     2-259

enabling per interface     2-261

error recovery timer     2-56

message timer     2-259

normal mode     2-259, 2-261

resetting shutdown interfaces     2-263

status     2-175

udld (global interface) command     2-259

udld (interface configuration) command     2-261

udld reset command     2-263

unicast suppression level

configuring     2-230

displaying     2-171

enabling     2-230

unicast traffic counters     2-137

UniDirectional Link Detection

See UDLD

upgrading, software images     2-3

UplinkFast, for STP     2-223

user EXEC mode     1-2, 1-3

V

vlan (global configuration) command     2-264

vlan (VLAN configuration) command     2-269

VLAN configuration

rules     2-267, 2-271

saving     2-264, 2-273

VLAN configuration mode

commands

VLAN     2-269

VTP     2-287

entering     2-275

summary     1-3

vlan database command     2-275

VLAN Query Protocol

See VQP

VLANs

adding     2-264

configuring     2-264, 2-269

debug message display

ISL     A-16

VLAN IOS file system error tests     A-15

VLAN manager activity     A-14

VTP     A-17

displaying configurations     2-179

MAC addresses

displaying     2-145

number of     2-145

media types     2-266, 2-271

saving the configuration     2-264

shutting down     2-193

SNMP traps for VTP     2-195, 2-197

variables     2-269

VMPS

configuring servers     2-281

reconfirming dynamic VLAN assignments     2-279

vmps reconfirm (global configuration) command     2-278

vmps reconfirm (privileged EXEC) command     2-279

vmps retry command     2-280

vmps server command     2-281

voice VLAN

configuring     2-249

setting port priority     2-244

VQP

and dynamic-access ports     2-233

clearing client statistics     2-25

displaying information     2-182

per-server retry count     2-280

reconfirmation interval     2-278

reconfirming dynamic VLAN assignments     2-279

VTP

changing characteristics     2-283

clearing pruning counters     2-26

clearing VTP counters     2-26

configuring

domain name     2-283, 2-287

file name     2-283

mode     2-283, 2-287

password     2-283, 2-287

counters display fields     2-186

displaying information     2-185

enabling

pruning     2-283, 2-287

version 2     2-283, 2-287

mode     2-283, 2-287

pruning     2-283, 2-287

saving the configuration     2-264, 2-273

status display fields     2-187

vtp (global configuration) command     2-283

vtp (VLAN configuration) command     2-287

W

WRR, assigning weights to egress queues     2-291

wrr-queue bandwidth command     2-291

wrr-queue cos-map command     2-293