Catalyst 3550 Multilayer Switch Command Reference, 12.1(20)EA2
Index

Table Of Contents

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

Index

Numerics

802.1Q trunk ports and native VLANs     2-521

802.1Q tunnel ports

configuring     2-467

displaying     2-256

limitations     2-468

802.1x

and switchport modes     2-468

See also port-based authentication

A

aaa accounting dot1x command     2-1

aaa authentication dot1x command     2-3

AAA methods     2-3

abort command     2-518

access control entries

See ACEs

access control lists

See ACLs

access groups

IP     2-98

MAC

configuring     2-137

displaying     2-309

access-list hardware program nonblocking command     2-5

access lists

IP     2-98

on Layer 2 interfaces     2-98, 2-137

access map configuration mode     2-157

access mode     2-467

access ports     2-467

ACEs     2-67, 2-200

ACLs

deny     2-65

displaying     2-232

for non-IP protocols     2-139

matching     2-157

permit     2-198

action command     2-7

aggregate-port learner     2-194

allowed VLANs     2-482

apply command     2-518

archive download-sw command     2-9

archive tar command     2-11

archive upload-sw command     2-14

audience     xv

authorization state of controlled port     2-74

autonegotiation of duplex mode     2-82

auto qos voip command     2-16

B

BackboneFast, for STP     2-409

boot (boot loader) command     A-2

boot boothlpr command     2-20

boot buffersize command     2-21

boot config-file command     2-22

boot enable-break command     2-23

boot helper command     2-24

boot helper-config file command     2-25

booting

Cisco IOS image     2-28

displaying environment variables     2-237

interrupting     2-23

manually     2-26

boot loader

accessing     A-1

booting

Cisco IOS image     A-2

helper image     2-24

directories

creating     A-15

displaying a list of     A-6

removing     A-19

displaying

available commands     A-11

memory heap utilization     A-13

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-4

deleting     A-5

displaying a list of     A-6

displaying the contents of     A-3, A-16, A-23

renaming     A-17

file system

formatting     A-9

initializing flash     A-8

running a consistency check     A-10

loading helper images     A-12

prompt     A-1

resetting the system     A-18

boot manual command     2-26

boot private-config-file command     2-27

boot system command     2-28

BPDU filtering, for spanning tree     2-410, 2-442

BPDU guard, for spanning tree     2-412, 2-442

broadcast storm control     2-455

broadcast traffic counters     2-290

C

candidate switches

See clusters

cat (boot loader) command     A-3

caution, description     xvi

CDP, enabling protocol tunneling for     2-129

channel-group command     2-29

channel-protocol command     2-32

Cisco SoftPhone

auto-QoS configuration     2-16

trusting packets sent from     2-181

class command     2-34

class-map command     2-36

class maps

creating     2-36

defining the match criteria     2-159

displaying     2-239

class of service

See CoS

clear l2protocol-tunnel counters command     2-39

clear lacp command     2-38

clear mac address-table command     2-40

clear pagp command     2-42

clear port-security command     2-43

clear setup express command     2-45

clear spanning-tree counters command     2-46

clear spanning-tree detected-protocols command     2-47

clear vmps statistics command     2-48

clear vtp counters command     2-49

cluster commander-address command     2-50

cluster discovery hop-count command     2-52

cluster enable command     2-53

cluster holdtime command     2-54

cluster member command     2-55

cluster outside-interface command     2-57

cluster run command     2-58

clusters

adding candidates     2-55

binding to HSRP group     2-59

building manually     2-55

communicating with

devices outside the cluster     2-57

members by using Telnet     2-213

debug messages, display     B-5

displaying

candidate switches     2-242

debug messages     B-5

member switches     2-244

status     2-240

hop-count limit for extended discovery     2-52

HSRP standby groups     2-59

redundancy     2-59

SNMP trap     2-398

cluster standby-group command     2-59

cluster timer command     2-61

command modes defined     1-1

command switch

See clusters

configuration conflicts, ACL, displaying     2-271

configuration files

password recovery disable considerations     A-1

setting the NVRAM size for     2-21

specifying the name     2-22, 2-27

configuring multiple interfaces     2-94

config-vlan mode

commands     2-504

description     1-4

entering     2-503

summary     1-2

conventions

command     xvi

for examples     xvi

publication     xvi

text     xvi

copy (boot loader) command     A-4

CoS

assigning default value to incoming packets     2-169

assigning to Layer 2 protocol packets     2-132

defining in a policy map     2-171

overriding the incoming value     2-169

CoS-to-DSCP map     2-175

CoS-to-egress-queue map     2-541

CPU ASIC

debug messages, display     B-7

statistics display     2-246

CPU statistics, displaying     2-246

cross-stack UplinkFast, for STP     2-446

D

debug acltcam command     B-2

debug auto qos command     B-3

debug cluster command     B-5

debug cpu-interface command     B-7

debug dot1x command     B-8

debug etherchannel command     B-9

debug ethernet-controller ram-access command     B-10

debug fallback-bridging command     B-11

debug gigastack command     B-12

debug ilpower controller command     B-13

debug ilpower process command     B-14

debug ip dhcp snooping command     B-15

debug ip igmp filter command     B-16

debug ip igmp max-groups command     B-17

debug l3multicast command     B-18

debug l3tcam command     B-19

debug l3unicast command     B-20

debug mac-manager command     B-21

debug mac-notification command     B-22

debug met command     B-23

debug mvrdbg command     B-24

debug pagp command     B-25

debug pbr command     B-26

debug pm command     B-27

debug port-security command     B-29

debug spanning-tree backbonefast command     B-33

debug spanning-tree bpdu command     B-34

debug spanning-tree bpdu-opt command     B-35

debug spanning-tree command     B-31

debug spanning-tree mstp command     B-36

debug spanning-tree switch command     B-38

debug spanning-tree uplinkfast command     B-40

debug span-session command     B-30

debug sw-vlan command     B-41

debug sw-vlan ifs command     B-43

debug sw-vlan notification command     B-44

debug sw-vlan vtp command     B-46

debug udld command     B-48

define interface-range command     2-62

delete (boot loader) command     A-5

delete command     2-64

deny command     2-65

detect mechanism, causes     2-84

DHCP snooping

displaying

bindings     2-294

configuration     2-293

enabling

on a VLAN     2-109

option 82     2-104, 2-106

trust on an interface     2-108

error recovery timer     2-86

rate limiting     2-107

dir (boot loader) command     A-6

directories, deleting     2-64

documentation

feedback     xviii

obtaining     xvii

ordering     xviii

related     xvii

document conventions     xvi

domain name, VTP     2-529, 2-535

dot1x default command     2-68

dot1x guest-vlan command     2-69

dot1x host-mode command     2-70

dot1x initialize command     2-71

dot1x max-req command     2-72

dot1x multiple-hosts command     2-73

dot1x port-control command     2-74

dot1x re-authenticate command     2-76

dot1x re-authentication command     2-77

dot1x reauthentication command     2-78

dot1x system-auth-control command     2-79

dropping packets, with ACL matches     2-7

drop threshold, Layer 2 protocol tunneling     2-129

DSCP-to-CoS map     2-175

DSCP-to-DSCP-mutation map     2-175

DSCP-to-threshold map     2-543

DTP     2-468

DTP flap

error detection for     2-84

error recovery timer     2-86

duplex command     2-82

dynamic-access ports

configuring     2-461

restrictions     2-462

dynamic auto VLAN membership mode     2-467

dynamic desirable VLAN membership mode     2-467

Dynamic Host Configuration Protocol (DHCP)

See DHCP snooping

Dynamic Trunking Protocol

See DTP

E

EAP-request/identity frame

maximum number to send     2-72

response time before retransmitting     2-80

encapsulation methods     2-482

environment variables, displaying     2-237

errdisable detect cause command     2-84

errdisable recovery command     2-86

error conditions, displaying     2-262

error disable detection     2-84

error-disabled interfaces, displaying     2-282

EtherChannel

assigning Ethernet interface to channel group     2-29

creating port-channel logical interface     2-92

debug messages, display     B-9, B-25

displaying     2-266

enabling Layer 2 protocol tunneling for

LACP     2-130

PAgP     2-130

UDLD     2-130

interface information, displaying     2-282

LACP modes     2-29

load-distribution methods     2-208

PAgP

aggregate-port learner     2-194

clearing channel-group information     2-38, 2-42

debug messages, display     B-25

displaying     2-307, 2-348

error detection for     2-84

error recovery timer     2-86

learn method     2-194

modes     2-29

physical-port learner     2-194

priority of interface for transmitted traffic     2-196

Ethernet controller

debug messages, display     B-10

internal register display     2-248

Ethernet statistics, collecting     2-216

examples, conventions for     xvi

exit command     2-518

express setup-related commands     2-45, 2-230, 2-364

extended discovery of candidate switches     2-52

extended-range VLANs

and allowed VLAN list     2-482

and pruning-eligible list     2-482

configuring     2-503

extended system ID for STP     2-418

F

fallback bridging, debugging     B-11

fan information, displaying     2-260

feature manager

displaying     2-271

displaying summaries     2-276

label information     2-271

per-interface information     2-274

per-VLAN information     2-276

feedback to Cisco Systems     xviii

file name, VTP     2-529

files, deleting     2-64

flash_init (boot loader) command     A-8

flowcontrol command     2-88

format (boot loader) command     A-9

forwarding information base (FIB), debugging     B-20

forwarding packets, with ACL matches     2-7

forwarding results, display     2-277

frame forwarding information, displaying     2-277

fsck (boot loader) command     A-10

G

GigaStack GBICs

debugging     B-12

trunk mode on     2-468

global configuration mode     1-2, 1-3

H

hardware ACL statistics     2-232

help (boot loader) command     A-11

hop-count limit for clusters     2-52

host connection, port configuration     2-465

HSRP

binding HSRP group to cluster     2-59

standby group     2-59

I

IDS, using with SPAN and RSPAN     2-186

IGMP filters

applying     2-110

debug messages, display     B-16

IGMP groups

configuring throttling action     2-112

setting maximum     2-112

IGMP maximum groups, debugging     B-17

IGMP profiles

creating     2-114

displaying     2-296

IGMP snooping

displaying     2-297

enabling     2-116

MAC address tables     2-323

report suppression     2-119

source-only-learning aging time     2-121

images

See software images

Immediate-Leave feature, MVR     2-191

Immediate-Leave processing     2-116

import map command     2-126

inline power command     2-210

interface command     2-96

interface configuration mode     1-2, 1-4

interface port-channel command     2-92

interface range command     2-94

interface-range macros     2-62

interfaces

assigning Ethernet interface to channel group     2-29

configuring     2-82

configuring multiple     2-94

creating port-channel logical     2-92

disabling     2-396

displaying the MAC address table     2-321

restarting     2-396

interface speed, configuring     2-453

internal registers, displaying     2-248, 2-254

Intrusion Detection System

See IDS

invalid GBIC

error detection for     2-84

error recovery timer     2-86

ip address command     2-100

IP addresses, setting     2-100

IP address matching     2-157

IP DHCP snooping

See DHCP snooping

ip dhcp snooping command     2-102

ip dhcp snooping information option command     2-104

ip dhcp snooping information option format snmp-ifindex command     2-106

ip dhcp snooping limit rate command     2-107

ip dhcp snooping trust command     2-108

ip dhcp snooping vlan command     2-109

ip igmp filter command     2-110

ip igmp max-groups command     2-112

ip igmp profile command     2-114

ip igmp snooping command     2-116

ip igmp snooping report-suppression command     2-119

ip igmp snooping source-only-learning command age-timer     2-121

IP multicast addresses     2-188

IP phones

auto-QoS configuration     2-16

trusting packets sent from     2-181

IP-precedence-to-DSCP map     2-175

ip ssh command     2-123

ip vrf (global configuration) command     2-125

ip vrf command     2-127

J

jumbo frames

See MTU

L

l2protocol-tunnel command     2-129

l2protocol-tunnel cos command     2-132

LACP

See EtherChannel

lacp port-priority command     2-133

lacp system-priority command     2-134

Layer 2 mode, enabling     2-459

Layer 2 protocol ports, displaying     2-300

Layer 2 protocol-tunnel

error detection for     2-84

error recovery timer     2-86

Layer 2 protocol tunnel counters     2-39

Layer 2 protocol tunneling error recovery     2-130

Layer 2 traceroute

IP addresses     2-494

MAC addresses     2-491

Layer 3 mode, enabling     2-459

line configuration mode     1-2, 1-5

Link Aggregation Control Protocol

See EtherChannel

link flap

enable timer to recover from error state     2-86

error detection for     2-84

load_helper (boot loader) command     A-12

load-distribution methods for EtherChannel     2-208

logging file command     2-135

logical interface     2-92

loopback error, recovery timer     2-86

loop guard, for spanning tree     2-420, 2-423

M

mac access-group command     2-137

MAC access-groups, displaying     2-309

MAC access list configuration mode     2-139

mac access-list extended command     2-139

MAC access lists     2-65

MAC addresses

and port security     2-473

debug learning on bridge groups     B-11

debug learning on VLANs     B-21

displaying

aging time     2-315

all     2-313

dynamic     2-319

Layer 2 multicast entries     2-323

notification settings     2-325

number of addresses in a VLAN     2-317

per interface     2-321

per VLAN     2-329

static     2-327

static and dynamic entries     2-311

dynamic

aging time     2-141

deleting     2-40

displaying     2-319

enabling MAC address notification     2-142

matching     2-157

static

adding and removing     2-144

displaying     2-327

dropping on an interface     2-145

tables     2-313

MAC address notification, debugging     B-22

mac address-table aging-time     2-141

mac address-table aging-time command     2-141

mac address-table notification command     2-142

mac address-table static command     2-144

mac address-table static drop command     2-145

MAC named extended access lists     2-139

macro description command     2-150

macro global command     2-151

macro global description command     2-154

macro name command     2-155

macros

adding a description     2-150

adding a global description     2-154

applying     2-151

creating     2-155

displaying     2-350

interface range     2-62, 2-94

specifying parameter values     2-151

tracing     2-151

manual

audience     xv

purpose of     xv

maps

QoS

defining     2-175

displaying     2-337

VLAN

creating     2-515

defining     2-157

displaying     2-388

match (access-map configuration) command     2-157

match (class-map configuration) command     2-159

maximum transmission unit

See MTU

member switches

See clusters

memory (boot loader) command     A-13

merge failures, displaying     2-271

mkdir (boot loader) command     A-15

mls aclmerge delay command     2-162

mls qos aggregate-policer command     2-167

mls qos command     2-164

mls qos cos command     2-169

mls qos cos policy-map command     2-171

mls qos dscp-mutation command     2-173

mls qos map command     2-175

mls qos min-reserve command     2-178

mls qos monitor command     2-179

mls qos trust command     2-181

mode, MVR     2-188

modes, commands     1-1

monitor session command     2-184

more (boot loader) command     A-16

MSTP

displaying     2-366

interoperability     2-47

link type     2-422

MST region

aborting changes     2-427

applying changes     2-427

configuration name     2-427

configuration revision number     2-427

current or pending display     2-427

displaying     2-366

MST configuration mode     2-427

VLANs-to-instance mapping     2-427

path cost     2-429

protocol mode     2-425

restart protocol migration process     2-47

root port

loop guard     2-420

preventing from becoming designated     2-420

restricting which can be root     2-420

root guard     2-420

MSTP (continued)

root switch

affects of extended system ID     2-418

hello-time     2-432, 2-438

interval between BDPU messages     2-433

interval between hello BPDU messages     2-432, 2-438

max-age     2-433

maximum hop count before discarding BPDU     2-434

port priority for selection of     2-435

primary or secondary     2-438

switch priority     2-437

state changes

blocking to forwarding state     2-444

enabling BPDU filtering     2-410, 2-442

enabling BPDU guard     2-412, 2-442

enabling Port Fast     2-442, 2-444

forward-delay time     2-431

length of listening and learning states     2-431

rapid transition to forwarding     2-422

shutting down Port Fast-enabled ports     2-442

state information display     2-365

MTU

configuring size     2-489

displaying global setting     2-372

mulit-VRF CE     2-125, 2-127

multicast expansion table (MET), debugging     B-23

multicast group address, MVR     2-191

multicast groups, MVR     2-189

multicast router learning method     2-116

multicast router ports, configuring     2-116

multicast routes, debugging     B-18, B-19

multicast storm control     2-455

multicast traffic counters     2-290

multicast VLAN, MVR     2-188

multicast VLAN registration

See MVR

multiple hosts on authorized port     2-70

Multiple Spanning Tree Protocol

See MSTP

multi VPN routing/forwarding instances in customer edge devices

See multi-VRF CE

MVR

configuring     2-188

configuring interfaces     2-191

debug messages, display     B-24

displaying     2-342

displaying interface information     2-344

members, displaying     2-346

mvr (global configuration) command     2-188

mvr (interface configuration) command     2-191

mvr group command     2-189

mvr vlan group command     2-192

N

native VLANs     2-482

native VLAN tagging     2-521

nonegotiate

DTP messaging     2-471

speed     2-453

non-IP protocols

denying     2-65

forwarding     2-198

non-IP traffic access lists     2-139

non-IP traffic forwarding

denying     2-65

permitting     2-198

normal-range VLANs     2-503, 2-509

note, description     xvi

no vlan command     2-503, 2-513

P

PAgP

See EtherChannel

pagp learn-method command     2-194

pagp port-priority command     2-196

password, VTP     2-529, 2-533, 2-535

password-recovery mechanism, enabling and disabling     2-220

PBR, debug messages, display     B-26

permit command     2-198

per-VLAN spanning-tree plus

See STP

physical-port learner     2-194

PIM-DVMRP, as multicast router learning method     2-116

police aggregate command     2-203

police command     2-201

policed-DSCP map     2-175

policy-based routing

See PBR

policy-map command     2-205

policy maps

applying to an interface     2-223, 2-227

creating     2-205

displaying     2-353

policers

displaying     2-332, 2-333

for a single class     2-201

for multiple classes     2-167, 2-203

policed-DSCP map     2-175

traffic classification

defining the class     2-34

defining trust states     2-496

setting DSCP or IP precedence values     2-225

Port Aggregation Protocol

See EtherChannel

port-based authentication

802.1x AAA accounting methods     2-1

AAA method list     2-3

debug messages, display     B-8

enabling 802.1x     2-74

guest VLAN     2-69

manual control of authorization state     2-74

multiple hosts on authorized port     2-70

port-based authentication (continued)

periodic re-authentication

enabling     2-78

time between attempts     2-80

quiet period between failed authentication exchanges     2-80

re-authenticating 802.1x-enabled ports     2-76

resetting configurable 802.1x parameters     2-68

statistics and status display     2-257

switch-to-client frame-retransmission number     2-72

switch-to-client retransmission time     2-80

port-channel load-balance command     2-208

Port Fast, for spanning tree     2-444

port labels     2-271, 2-274, 2-373

port ranges, defining     2-62

ports, debugging     B-27

ports, protected     2-481

port security

aging     2-477

debug messages, display     B-29

enabling     2-473

violation error recovery     2-86

port trust states for QoS     2-181

port types, MVR     2-191

power information, displaying     2-260

power inline command     2-210

priority-queue command     2-212

privileged EXEC mode     1-2, 1-3

protected ports, displaying     2-288

pruning

VLANs     2-482

VTP

displaying interface information     2-282

enabling     2-529, 2-533, 2-535

publications, related     xvii

PVST+

See STP

Q

QoS

automatic configuration     2-16

class maps

creating     2-36

defining the match criteria     2-159

displaying     2-239

defining the CoS value for an incoming packet     2-169

displaying configuration information     2-234, 2-331

DSCP trusted ports

applying DSCP-to-DSCP-mutation map to     2-173

defining DSCP-to-DSCP-mutation map     2-175

enabling     2-164

maps

defining     2-175

displaying     2-337

policy maps

applying an aggregate policer     2-203

applying to an interface     2-223, 2-227

creating     2-205

defining CoS     2-171

defining policers     2-167, 2-201

displaying policers     2-332, 2-333

displaying policy maps     2-353

policed-DSCP map     2-175

setting DSCP or IP precedence values     2-225

traffic classifications     2-34

trust states     2-496

port trust states     2-181

queues

CoS-to-egress-queue map     2-541

displaying buffer settings     2-333

displaying queueing strategies     2-333

enabling the expedite     2-212

mapping DSCPs to thresholds     2-543

minimum-reserve level     2-545

minimum-reserve level buffer sizes     2-178

ratio of queue sizes     2-546

QoS queues (continued)

tail-drop threshold percentages     2-549

WRED threshold percentages     2-547

WRR weights     2-539

statistics

collecting on specified DSCPs     2-179

displaying DSCP information     2-333

tail-drop

assigning threshold percentages     2-549

mapping DSCPs to thresholds     2-543

trusted boundary for Cisco SoftPhones     2-181

trusted boundary for IP phones     2-181

WRED

assigning threshold percentages     2-547

enabling     2-547

mapping DSCPs to thresholds     2-543

quality of service

See QoS

querytime, MVR     2-188

R

rapid per-VLAN spanning-tree plus

See STP

rapid PVST+

See STP

rcommand command     2-213

re-authenticating 802.1x-enabled ports     2-76

re-authentication

periodic     2-78

time between attempts     2-80

receiver ports, MVR     2-191

receiving flow-control packets     2-88

recovery mechanism

causes     2-86

display     2-261, 2-264

timer interval     2-86

redundancy for cluster switches     2-59

remote-span command     2-215

Remote Switched Port Analyzer

See RSPAN

rename (boot loader) command     A-17

reset (boot loader) command     A-18

reset command     2-518

resource templates, displaying     2-362

rmdir (boot loader) command     A-19

rmon collection stats command     2-216

root guard, for spanning tree     2-420

route distinguisher     2-126

routed ports

IP addresses on     2-101

number supported     2-101, 2-218

route-target command     2-126

RSPAN

and IDS     2-186

configuring     2-184

displaying     2-340

filter RSPAN traffic     2-184

remote-span command     2-215

sessions

add interfaces to     2-184

start new     2-184

S

sdm prefer command     2-217

secure ports, limitations     2-475

sending flow-control packets     2-88

service password-recovery command     2-220

service-policy command     2-223

set (boot loader) command     A-20

set command     2-225

setup command     2-227

setup express command     2-230

show access-lists command     2-232

show auto qos command     2-234

show boot command     2-237

show changes command     2-518

show class-map command     2-239

show cluster candidates command     2-242