Catalyst 2960 Switch Command Reference (LAN Lite Image), Rel 12.2(37)EY
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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 -

Index

A

aaa accounting dot1x command 2-1

aaa authentication dot1x command 2-3

aaa authorization network command 2-5

AAA methods 2-3

abort command 2-431

access mode 2-386

access ports 2-386

aggregate-port learner 2-157

allowed VLANs 2-398

apply command 2-431

archive download-sw command 2-6

archive tar command 2-8

archive upload-sw command 2-11

audience xiii

authorization state of controlled port 2-65

autonegotiation of duplex mode 2-72

B

BackboneFast, for STP 2-331

backup interfaces

displaying 2-230

boot (boot loader) command A-2

boot boothlpr command 2-13

boot config-file command 2-14

boot enable-break command 2-15

boot helper command 2-16

boot helper-config file command 2-17

booting

Cisco IOS image 2-20

displaying environment variables 2-184

interrupting 2-15

manually 2-18

boot loader

accessing A-1

booting

Cisco IOS image A-2

helper image 2-16

directories

creating A-15

displaying a list of A-7

removing A-19

displaying

available commands A-12

memory heap utilization A-14

version A-26

environment variables

described A-20

displaying settings A-20

location of A-21

setting A-20

unsetting A-24

files

copying A-5

deleting A-6

displaying a list of A-7

displaying the contents of A-4, A-16, A-23

renaming A-17

file system

formatting A-10

initializing flash A-9

running a consistency check A-11

loading helper images A-13

prompt A-1

resetting the system A-18

boot manual command 2-18

boot private-config-file command 2-19

boot system command 2-20

BPDU filtering, for spanning tree 2-332, 2-367

BPDU guard, for spanning tree 2-334, 2-367

broadcast storm control 2-379

C

candidate switches

See clusters

cat (boot loader) command A-4

caution, description xiv

channel-group command 2-21

channel-protocol command 2-24

Cisco Network Assistant

See Network Assistant xiv

class of service

See CoS

clear dot1x command 2-25

clear eap sessions command 2-26

clear errdisable interface 2-27

clear lacp command 2-28

clear mac address-table command 2-29

clear pagp command 2-30

clear port-security command 2-31

clear spanning-tree counters command 2-33

clear spanning-tree detected-protocols command 2-34

clear vmps statistics command 2-35

clear vtp counters command 2-36

cluster commander-address command 2-37

cluster discovery hop-count command 2-39

cluster enable command 2-40

cluster holdtime command 2-41

cluster member command 2-42

cluster outside-interface command 2-44

cluster requirements xiv

cluster run command 2-45

clusters

adding candidates 2-42

binding to HSRP group 2-46

building manually 2-42

communicating with

devices outside the cluster 2-44

members by using Telnet 2-169

debug messages, display B-2

displaying

candidate switches 2-190

debug messages B-2

member switches 2-192

status 2-188

hop-count limit for extended discovery 2-39

HSRP standby groups 2-46

redundancy 2-46

SNMP trap 2-321

cluster standby-group command 2-46

cluster timer command 2-48

command modes defined 1-1

command switch

See clusters

configuration, initial

See getting started guide and hardware installation guide

configuration files

password recovery disable considerations A-1

specifying the name 2-14, 2-19

configuring multiple interfaces 2-84

config-vlan mode

commands 2-420

description 1-4

entering 2-419

summary 1-2

conventions

command xiii

for examples xiv

publication xiii

text xiii

copy (boot loader) command A-5

CoS

assigning default value to incoming packets 2-141

overriding the incoming value 2-141

CPU ASIC statistics, displaying 2-194

crashinfo files 2-77

D

debug cluster command B-2

debug dot1x command B-4

debug dtp command B-5

debug eap command B-6

debug etherchannel command B-7

debug interface command B-8

debug ip igmp filter command B-9

debug ip igmp max-groups command B-10

debug ip igmp snooping command B-11

debug lacp command B-12

debug mac-notification command B-13

debug matm command B-14

debug monitor command B-15

debug nvram command B-16

debug pagp command B-17

debug platform cpu-queues command B-18

debug platform dot1x command B-20

debug platform etherchannel command B-21

debug platform forw-tcam command B-22

debug platform ip dhcp command B-23

debug platform ip igmp snooping command B-24

debug platform led command B-26

debug platform matm command B-27

debug platform messaging application command B-28

debug platform phy command B-29

debug platform pm command B-31

debug platform port-asic command B-33

debug platform port-security command B-34

debug platform qos-acl-tcam command B-35

debug platform resource-manager command B-36

debug platform snmp command B-37

debug platform span command B-38

debug platform supervisor-asic command B-39

debug platform sw-bridge command B-40

debug platform tcam command B-41

debug platform udld command B-43

debug platform vlan command B-44

debug pm command B-45

debug port-security command B-47

debug qos-manager command B-48

debug spanning-tree backbonefast command B-51

debug spanning-tree bpdu command B-52

debug spanning-tree bpdu-opt command B-53

debug spanning-tree command B-49

debug spanning-tree mstp command B-54

debug spanning-tree switch command B-56

debug spanning-tree uplinkfast command B-58

debug sw-vlan command B-59

debug sw-vlan ifs command B-61

debug sw-vlan notification command B-62

debug sw-vlan vtp command B-63

debug udld command B-65

debug vqpc command B-67

define interface-range command 2-49

delete (boot loader) command A-6

delete command 2-51

detect mechanism, causes 2-73

device manager requirements xiv

DHCP snooping

error recovery timer 2-75

dir (boot loader) command A-7

directories, deleting 2-51

documentation, related xiv

document conventions xiii

domain name, VTP 2-438, 2-442

dot1x command 2-52

dot1x default command 2-54

dot1x fallback command 2-55

dot1x guest-vlan command 2-56

dot1x host-mode command 2-58

dot1x initialize command 2-59

dot1x mac-auth-bypass command 2-60

dot1x max-reauth-req command 2-62

dot1x max-req command 2-63

dot1x pae command 2-64

dot1x port-control command 2-65

dot1x re-authenticate command 2-67

dot1x reauthentication command 2-68

dot1x timeout command 2-69

DTP 2-387

DTP flap

error detection for 2-73

error recovery timer 2-75

DTP negotiation 2-388

dual-purpose uplink ports

displaying configurable options 2-233

displaying the active media 2-237

dual-purpose uplink ports, selecting the type 2-137

duplex command 2-71

dynamic-access ports

configuring 2-382

restrictions 2-383

dynamic auto VLAN membership mode 2-386

dynamic desirable VLAN membership mode 2-386

Dynamic Trunking Protocol

See DTP

E

EAP-request/identity frame

maximum number to send 2-63

response time before retransmitting 2-69

environment variables, displaying 2-184

errdisable detect cause command 2-73

errdisable recovery command 2-75

error conditions, displaying 2-219

error disable detection 2-73

error-disabled interfaces, displaying 2-230

EtherChannel

assigning Ethernet interface to channel group 2-21

creating port-channel logical interface 2-82

debug EtherChannel/PAgP, display B-7

debug platform-specific events, display B-21

displaying 2-223

interface information, displaying 2-230

LACP

clearing channel-group information 2-28

debug messages, display B-12

displaying 2-252

modes 2-21

port priority for hot-standby ports 2-113

restricting a protocol 2-24

system priority 2-115

load-distribution methods 2-161

PAgP

aggregate-port learner 2-157

clearing channel-group information 2-30

debug messages, display B-17

displaying 2-283

error detection for 2-73

error recovery timer 2-75

learn method 2-157

modes 2-21

physical-port learner 2-157

priority of interface for transmitted traffic 2-159

Ethernet controller, internal register display 2-196

Ethernet statistics, collecting 2-171

examples, conventions for xiv

exception crashinfo command 2-77

exit command 2-431

extended discovery of candidate switches 2-39

extended-range VLANs

and allowed VLAN list 2-398

and pruning-eligible list 2-398

configuring 2-419

extended system ID for STP 2-340

F

fallback profile command 2-78

fallback profiles, displaying 2-226

fan information, displaying 2-216

file name, VTP 2-438

files, deleting 2-51

flash_init (boot loader) command A-9

Flex Links

displaying 2-230

flowcontrol command 2-80

format (boot loader) command A-10

forwarding results, display C-3

frame forwarding information, displaying C-3

fsck (boot loader) command A-11

G

global configuration mode 1-2, 1-3

H

help (boot loader) command A-12

hop-count limit for clusters 2-39

host connection, port configuration 2-385

Hot Standby Router Protocol

See HSRP

HSRP

binding HSRP group to cluster 2-46

standby group 2-46

I

IEEE 802.1x

and switchport modes 2-387

violation error recovery 2-75

See also port-based authentication

IEEE 802.1X Port Based Authentication

enabling guest VLAN supplicant 2-55, 2-79

IGMP filters

applying 2-90

debug messages, display B-9

IGMP groups, setting maximum 2-91

IGMP maximum groups, debugging B-10

IGMP profiles

creating 2-93

displaying 2-242

IGMP snooping

adding ports as a static member of a group 2-109

displaying 2-243, 2-248, 2-250

enabling 2-95

enabling the configurable-leave timer 2-97

enabling the Immediate-Leave feature 2-106

flooding query count 2-103

interface topology change notification behavior 2-105

multicast table 2-246

querier 2-99

query solicitation 2-103

report suppression 2-101

switch topology change notification behavior 2-103

images

See software images

immediate-leave processing 2-106

initial configuration

See getting started guide and hardware installation guide

interface configuration mode 1-2, 1-4

interface port-channel command 2-82

interface range command 2-84

interface-range macros 2-49

interfaces

assigning Ethernet interface to channel group 2-21

configuring 2-71

configuring multiple 2-84

creating port-channel logical 2-82

debug messages, display B-8

disabling 2-319

displaying the MAC address table 2-266

restarting 2-319

interface speed, configuring 2-377

interface vlan command 2-87

internal registers, displaying 2-196, 2-203

Internet Group Management Protocol

See IGMP

invalid GBIC

error detection for 2-73

error recovery timer 2-75

ip address command 2-88

IP addresses, setting 2-88

ip igmp filter command 2-90

ip igmp max-groups command 2-91

ip igmp profile command 2-93

ip igmp snooping command 2-95

ip igmp snooping last-member-query-interval command 2-97

ip igmp snooping querier command 2-99

ip igmp snooping report-suppression command 2-101

ip igmp snooping tcn command 2-103

ip igmp snooping tcn flood command 2-105

ip igmp snooping vlan immediate-leave command 2-106

ip igmp snooping vlan mrouter command 2-107

ip igmp snooping vlan static command 2-109

ip ssh command 2-111

J

jumbo frames

See MTU

L

LACP

See EtherChannel

lacp port-priority command 2-113

lacp system-priority command 2-115

Layer 2 traceroute

IP addresses 2-410

MAC addresses 2-407

line configuration mode 1-2, 1-5

Link Aggregation Control Protocol

See EtherChannel

link flap

error detection for 2-73

error recovery timer 2-75

load_helper (boot loader) command A-13

load-distribution methods for EtherChannel 2-161

logging event command 2-117

logging file command 2-118

logical interface 2-82

loopback error

detection for 2-73

recovery timer 2-75

loop guard, for spanning tree 2-342, 2-346

M

MAC addresses

displaying

aging time 2-260

all 2-258

dynamic 2-264

notification settings 2-268

number of addresses in a VLAN 2-262

per interface 2-266

per VLAN 2-272

static 2-270

static and dynamic entries 2-256

dynamic

aging time 2-120

deleting 2-29

displaying 2-264

enabling MAC address notification 2-121

static

adding and removing 2-123

displaying 2-270

dropping on an interface 2-124

tables 2-258

MAC address notification, debugging B-13

mac address-table aging-time 2-120

mac address-table aging-time command 2-120

mac address-table notification command 2-121

mac address-table static command 2-123

mac address-table static drop command 2-124

macro apply command 2-126

macro description command 2-129

macro global command 2-130

macro global description command 2-133

macro name command 2-134

macros

adding a description 2-129

adding a global description 2-133

applying 2-130

creating 2-134

displaying 2-285

interface range 2-49, 2-84

specifying parameter values 2-130

tracing 2-130

manual

audience xiii

purpose of xiii

maps

QoS

displaying 2-279

maximum transmission unit

See MTU

mdix auto command 2-136

media-type command 2-137

member switches

See clusters

memory (boot loader) command A-14

mkdir (boot loader) command A-15

mls qos command 2-139

mls qos cos command 2-141

mls qos rewrite ip dscp command 2-143

mls qos-srr-queue input cos-map command 2-145

mls qos srr-queue input priority-queue command 2-147

mls qos-srr-queue output cos-map command 2-149

mls qos trust command 2-151

Mode button, and password recovery 2-174

modes, commands 1-1

monitor session command 2-152

more (boot loader) command A-16

MSTP

displaying 2-295, 2-296

interoperability 2-34

link type 2-344

MST region

aborting changes 2-350

applying changes 2-350

configuration name 2-350

configuration revision number 2-350

current or pending display 2-350

displaying 2-295, 2-296

MST configuration mode 2-350

VLANs-to-instance mapping 2-350

path cost 2-352

protocol mode 2-348

restart protocol migration process 2-34

root port

loop guard 2-342

preventing from becoming designated 2-342

restricting which can be root 2-342

root guard 2-342

root switch

affects of extended system ID 2-340

hello-time 2-355, 2-363

interval between BDPU messages 2-356

interval between hello BPDU messages 2-355, 2-363

max-age 2-356

maximum hop count before discarding BPDU 2-357

port priority for selection of 2-359

primary or secondary 2-363

switch priority 2-362

state changes

blocking to forwarding state 2-369

enabling BPDU filtering 2-332, 2-367

enabling BPDU guard 2-334, 2-367

enabling Port Fast 2-367, 2-369

forward-delay time 2-354

length of listening and learning states 2-354

rapid transition to forwarding 2-344

shutting down Port Fast-enabled ports 2-367

state information display 2-294

MTU

configuring size 2-404

displaying global setting 2-303

multicast router learning method 2-107

multicast router ports, configuring 2-107

multicast storm control 2-379

Multiple Spanning Tree Protocol

See MSTP

N

native VLANs 2-398

Network Assistant requirements xiv

nonegotiate, speed 2-377

nonegotiating DTP messaging 2-388

normal-range VLANs 2-419, 2-424

note, description xiv

no vlan command 2-419, 2-428

P

PAgP

See EtherChannel

pagp learn-method command 2-157

pagp port-priority command 2-159

password, VTP 2-438, 2-442

password-recovery mechanism, enabling and disabling 2-174

per-VLAN spanning-tree plus

See STP

physical-port learner 2-157

PID, displaying 2-241

PIM-DVMRP, as multicast router learning method 2-107

policy maps

applying to an interface 2-178

traffic classification

defining trust states 2-412

setting DSCP or IP precedence values 2-176

Port Aggregation Protocol

See EtherChannel

port-based authentication

AAA method list 2-3

debug messages, display B-4

enabling IEEE 802.1x

globally 2-52

per interface 2-65

guest VLAN 2-56

host modes 2-58

IEEE 802.1x AAA accounting methods 2-1

initialize an interface 2-59

MAC authentication bypass 2-60

manual control of authorization state 2-65

PAE as authenticator 2-64

periodic re-authentication

enabling 2-68

time between attempts 2-69

quiet period between failed authentication exchanges 2-69

re-authenticating IEEE 802.1x-enabled ports 2-67

resetting configurable IEEE 802.1x parameters 2-54

switch-to-authentication server retransmission time 2-69

switch-to-client frame-retransmission number2-62to 2-63

switch-to-client retransmission time 2-69

port-channel load-balance command 2-161

Port Fast, for spanning tree 2-369

port ranges, defining 2-49

ports, debugging B-45

ports, protected 2-397

port security

aging 2-395

debug messages, display B-47

enabling 2-390

violation error recovery 2-75

port trust states for QoS 2-151

power information, displaying 2-216

priority-queue command 2-163

privileged EXEC mode 1-2, 1-3

product identification information, displaying 2-241

protected ports, displaying 2-235

pruning

VLANs 2-398

VTP

displaying interface information 2-230

enabling 2-438, 2-442

pruning-eligible VLAN list 2-399

PVST+

See STP

Q

QoS

defining the CoS value for an incoming packet 2-141

displaying configuration information 2-274

DSCP transparency 2-143

egress queues

defining the CoS output queue threshold map 2-149

displaying buffer allocations 2-276

displaying CoS output queue threshold map 2-279

displaying queueing strategy 2-276

mapping CoS values to a queue and threshold 2-149

enabling 2-139

QoS

ingress queues

defining the CoS input queue threshold map 2-145

displaying buffer allocations 2-276

displaying CoS input queue threshold map 2-279

displaying queueing strategy 2-276

displaying settings for 2-275

enabling the priority queue 2-147

mapping CoS values to a queue and threshold 2-145

maps

defining 2-145, 2-149

displaying 2-279

policy maps

applying to an interface 2-178

setting DSCP or IP precedence values 2-176

trust states 2-412

port trust states 2-151

queues, enabling the expedite 2-163

statistics

in-profile and out-of-profile packets 2-276

packets enqueued or dropped 2-276

sent and received CoS values 2-276

sent and received DSCP values 2-276

R

radius-server dead-criteria command 2-165

radius-server host command 2-167

rapid per-VLAN spanning-tree plus

See STP

rapid PVST+

See STP

rcommand command 2-169

re-authenticating IEEE 802.1x-enabled ports 2-67

re-authentication

periodic 2-68

time between attempts 2-69

receiving flow-control packets 2-80

recovery mechanism

causes 2-75

display 2-27, 2-186, 2-217, 2-221

timer interval 2-75

redundancy for cluster switches 2-46

Remote Switched Port Analyzer

See RSPAN

rename (boot loader) command A-17

requirements

cluster xiv

device manager xiv

Network Assistant xiv

reset (boot loader) command A-18

reset command 2-431

resource templates, displaying 2-291

rmdir (boot loader) command A-19

rmon collection stats command 2-171

root guard, for spanning tree 2-342

RSPAN

configuring 2-152

displaying 2-281

filter RSPAN traffic 2-152

sessions

add interfaces to 2-152

displaying 2-281

start new 2-152

S

sdm prefer command 2-172

SDM templates

displaying 2-291

secure ports, limitations 2-392

sending flow-control packets 2-80

service password-recovery command 2-174

set (boot loader) command A-20

set command 2-176

setup command 2-178

setup express command 2-181

show archive status command 2-183

show boot command 2-184

show cable-diagnostics tdr command 2-186

show changes command 2-431

show cluster candidates command 2-190

show cluster command 2-188

show cluster members command 2-192

show controllers cpu-interface command 2-194

show controllers ethernet-controller command 2-196

show controllers tcam command 2-203

show controller utilization command 2-205

show current command 2-431

show dot1x command 2-207

show dtp 2-211

show eap command 2-213

show env command 2-216

show errdisable detect command 2-217

show errdisable flap-values command 2-219

show errdisable recovery command 2-221

show etherchannel command 2-223

show fallback profile command 2-226

show flowcontrol command 2-228

show interfaces command 2-230

show interfaces counters command 2-239

show inventory command 2-241

show ip igmp profile command 2-242

show ip igmp snooping command 2-243

show ip igmp snooping groups command 2-246

show ip igmp snooping mrouter command 2-248

show ip igmp snooping querier command 2-250

show lacp command 2-252

show mac address-table address command 2-258

show mac address-table aging time command 2-260

show mac address-table command 2-256

show mac address-table count command 2-262

show mac address-table dynamic command 2-264

show mac address-table interface command 2-266

show mac address-table notification command 2-268

show mac address-table static command 2-270

show mac address-table vlan command 2-272

show mls qos command 2-274

show mls qos input-queue command 2-275

show mls qos interface command 2-276

show mls qos maps command 2-279

show monitor command 2-281

show pagp command 2-283

show parser macro command 2-285

show platform etherchannel command C-2

show platform forward command C-3

show platform igmp snooping command C-5

show platform layer4op command C-7

show platform mac-address-table command C-8

show platform messaging command C-9

show platform monitor command C-10

show platform pm command C-11

show platform port-asic command C-12

show platform port-security command C-20

show platform qos command C-21

show platform resource-manager command C-22

show platform snmp counters command C-24

show platform spanning-tree command C-25

show platform stp-instance command C-26

show platform tcam command C-27

show platform vlan command C-29

show port security command 2-288

show proposed command 2-431

show sdm prefer command 2-291

show setup express command 2-293

show spanning-tree command 2-294

show storm-control command 2-301

show system mtu command 2-303

show trust command 2-412

show udld command 2-304

show version command 2-307

show vlan command 2-309

show vlan command, fields 2-310

show vmps command 2-312

show vtp command 2-315

shutdown command 2-319

shutdown vlan command 2-320

Smartports macros

See macros

SNMP host, specifying 2-325

SNMP informs, enabling the sending of 2-321

snmp-server enable traps command 2-321

snmp-server host command 2-325

snmp trap mac-notification command 2-329

SNMP traps

enabling MAC address notification trap 2-329

enabling the MAC address notification feature 2-121

enabling the sending of 2-321

software images

deleting 2-51

uploading 2-11

software version, displaying 2-307

SPAN

configuring 2-152

debug messages, display B-15

displaying 2-281

filter SPAN traffic 2-152

sessions

add interfaces to 2-152

displaying 2-281

start new 2-152

spanning-tree backbonefast command 2-331

spanning-tree bpdufilter command 2-332

spanning-tree bpduguard command 2-334

spanning-tree cost command 2-336

spanning-tree etherchannel command 2-338

spanning-tree extend system-id command 2-340

spanning-tree guard command 2-342

spanning-tree link-type command 2-344

spanning-tree loopguard default command 2-346

spanning-tree mode command 2-348

spanning-tree mst configuration command 2-350

spanning-tree mst cost command 2-352

spanning-tree mst forward-time command 2-354

spanning-tree mst hello-time command 2-355

spanning-tree mst max-age command 2-356

spanning-tree mst max-hops command 2-357

spanning-tree mst port-priority command 2-359

spanning-tree mst pre-standard command 2-361

spanning-tree mst priority command 2-362

spanning-tree mst root command 2-363

spanning-tree portfast (global configuration) command 2-367

spanning-tree portfast (interface configuration) command 2-369

spanning-tree port-priority command 2-365

Spanning Tree Protocol

See STP

spanning-tree transmit hold-count command 2-371

spanning-tree uplinkfast command 2-372

spanning-tree vlan command 2-374

speed command 2-377

SSH, configuring version 2-111

static-access ports, configuring 2-382

statistics, Ethernet group 2-171

sticky learning, enabling 2-390

storm-control command 2-379

STP

BackboneFast 2-331

counters, clearing 2-33

debug messages, display

BackboneFast events B-51

MSTP B-54

optimized BPDUs handling B-53

spanning-tree activity B-49

switch shim B-56

transmitted and received BPDUs B-52

UplinkFast B-58

detection of indirect link failures 2-331

EtherChannel misconfiguration 2-338

extended system ID 2-340

path cost 2-336

STP

protocol modes 2-348

root port

accelerating choice of new 2-372

loop guard 2-342

preventing from becoming designated 2-342

restricting which can be root 2-342

root guard 2-342

UplinkFast 2-372

root switch

affects of extended system ID 2-340, 2-375

hello-time 2-374

interval between BDPU messages 2-374

interval between hello BPDU messages 2-374

max-age 2-374

port priority for selection of 2-365

primary or secondary 2-374

switch priority 2-374

state changes

blocking to forwarding state 2-369

enabling BPDU filtering 2-332, 2-367

enabling BPDU guard 2-334, 2-367

enabling Port Fast 2-367, 2-369

enabling timer to recover from error state 2-75

forward-delay time 2-374

length of listening and learning states 2-374

shutting down Port Fast-enabled ports 2-367

state information display 2-294

VLAN options 2-362, 2-374

Switched Port Analyzer

See SPAN

switchport access command 2-382

switchport block command 2-384

switchport host command 2-385

switchport mode command 2-386

switchport nonegotiate command 2-388

switchport port-security aging command 2-395

switchport port-security command 2-390

switchport protected command 2-397

switchports, displaying 2-230

switchport trunk command 2-398

switchport voice vlan command 2-401, 2-402

system message logging, save message to flash 2-118

system mtu command 2-404

system resource templates 2-172

T

tar files, creating, listing, and extracting 2-8

TDR, running 2-406

Telnet, using to communicate to cluster switches 2-169

temperature information, displaying 2-216

templates, SDM 2-172

templates, system resources 2-172

test cable-diagnostics tdr command 2-406

traceroute mac command 2-407

traceroute mac ip command 2-410

trunking, VLAN mode 2-386

trunk mode 2-386

trunk ports 2-386

trunks, to non-DTP device 2-387

trusted port states for QoS 2-151

type (boot loader) command A-23

U

UDLD

aggressive mode 2-414, 2-416

debug messages, display B-65

enable globally 2-414

enable per interface 2-416

error recovery timer 2-75

message timer 2-414

normal mode 2-414, 2-416

reset a shutdown interface 2-418

status 2-304

udld command 2-414

udld port command 2-416

udld reset command 2-418

unicast storm control 2-379

UniDirectional Link Detection

See UDLD

unknown multicast traffic, preventing 2-384

unknown unicast traffic, preventing 2-384

unset (boot loader) command A-24

upgrading information

See release notes

UplinkFast, for STP 2-372

user EXEC mode 1-2, 1-3

V

version (boot loader) command A-26

vlan (global configuration) command 2-419

vlan (VLAN configuration) command 2-424

VLAN configuration

rules 2-422, 2-426

saving 2-419, 2-428

VLAN configuration mode

commands

VLAN 2-424

VTP 2-442

description 1-5

entering 2-430

summary 1-2

vlan database command 2-430

VLAN ID range 2-419, 2-424

VLAN Query Protocol

See VQP

VLANs

adding 2-419

configuring 2-419, 2-424

debug messages, display

ISL B-62

VLAN IOS file system error tests B-61

VLAN manager activity B-59

VTP B-63

displaying configurations 2-309

enabling guest VLAN supplicant 2-55, 2-79

extended-range 2-419

MAC addresses

displaying 2-272

number of 2-262

media types 2-421, 2-426

normal-range 2-419, 2-424

restarting 2-320

saving the configuration 2-419

shutting down 2-320

SNMP traps for VTP 2-323, 2-326

suspending 2-320

variables 2-424

VLAN Trunking Protocol

See VTP

VMPS

configuring servers 2-436

displaying 2-312

error recovery timer 2-75

reconfirming dynamic VLAN assignments 2-433

vmps reconfirm (global configuration) command 2-434

vmps reconfirm (privileged EXEC) command 2-433

vmps retry command 2-435

vmps server command 2-436

voice VLAN

configuring 2-401, 2-402

VQP

and dynamic-access ports 2-383

clearing client statistics 2-35

displaying information 2-312

per-server retry count 2-435

reconfirmation interval 2-434

reconfirming dynamic VLAN assignments 2-433

VTP

changing characteristics 2-438

clearing pruning counters 2-36

configuring

domain name 2-438, 2-442

file name 2-438

mode 2-438, 2-442

password 2-438, 2-442

counters display fields 2-316

displaying information 2-315

enabling

pruning 2-438, 2-442

Version 2 2-438, 2-442

mode 2-438, 2-442

pruning 2-438, 2-442

saving the configuration 2-419, 2-428

statistics 2-315

status 2-315

status display fields 2-317

vtp (global configuration) command 2-438

vtp (VLAN configuration) command 2-442