Table Of Contents

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

Index

Numerics

10-Gigabit Ethernet interfaces 11-6

A

AAA down policy, NAC Layer 2 IP validation 1-10

abbreviating commands 2-4

ABRs 38-25

AC (command switch) 6-11

access-class command 34-20

access control entries

See ACEs

access-denied response, VMPS 13-28

access groups

applying IPv4 ACLs to interfaces 34-21

Layer 2 34-21

Layer 3 34-21

access groups, applying IPv4 ACLs to interfaces 34-21

accessing

clusters, switch 6-14

command switches 6-12

member switches 6-14

switch clusters 6-14

accessing stack members 5-24

access lists

See ACLs

access ports

and Layer 2 protocol tunneling 17-11

defined 11-3

in switch clusters 6-10

access template 8-1

accounting

with 802.1x 10-32

with IEEE 802.1x 10-9

with RADIUS 9-28

with TACACS+ 9-11, 9-17

ACEs

and QoS 36-7

defined 34-2

Ethernet 34-2

IP 34-2

ACLs

ACEs 34-2

any keyword 34-13

applying

on bridged packets 34-38

on multicast packets 34-40

on routed packets 34-39

on switched packets 34-38

time ranges to 34-17

to an interface 34-20, 35-8

to IPv6 interfaces 35-8

to QoS 36-7

classifying traffic for QoS 36-46

comments in 34-19

compiling 34-22

defined 34-1, 34-8

examples of 34-22, 36-46

extended IP, configuring for QoS classification 36-47

extended IPv4

creating 34-11

matching criteria 34-8

hardware and software handling 34-22

host keyword 34-13

ACLs

IP

creating 34-8

fragments and QoS guidelines 36-35

implicit deny 34-10, 34-14, 34-17

implicit masks 34-10

matching criteria 34-8

undefined 34-21

IPv4

applying to interfaces 34-20

creating 34-8

matching criteria 34-8

named 34-15

numbers 34-8

terminal lines, setting on 34-19

unsupported features 34-7

IPv6

and stacking 35-3

applying to interfaces 35-8

configuring 35-4, 35-5

displaying 35-9

interactions with other features 35-4

limitations 35-3

matching criteria 35-3

named 35-3

precedence of 35-2

supported 35-3

unsupported features 35-3

Layer 4 information in 34-37

logging messages 34-9

MAC extended 34-27, 36-48

matching 34-8, 34-21

monitoring 34-40, 35-9

named

IPv4 34-15

IPv6 35-3

names 35-4

number per QoS class map 36-35

port 34-2, 35-2

ACLs

precedence of 34-2

QoS 36-7, 36-46

resequencing entries 34-15

router 34-2, 35-2

router ACLs and VLAN map configuration guidelines 34-37

standard IP, configuring for QoS classification 36-46

standard IPv4

creating 34-10

matching criteria 34-8

support for 1-9

support in hardware 34-22

time ranges 34-17

types supported 34-2

unsupported features

IPv4 34-7

IPv6 35-3

using router ACLs with VLAN maps 34-36

VLAN maps

configuration guidelines 34-30

configuring 34-29

active links 21-2

active router 40-1

address aliasing 24-2

addresses

displaying the MAC address table 7-27

dynamic

accelerated aging 18-9

changing the aging time 7-21

default aging 18-9

defined 7-19

learning 7-20

removing 7-22

MAC, discovering 7-27

multicast

group address range 42-3

STP address management 18-9

addresses

static

adding and removing 7-24

defined 7-19

address resolution 7-27, 38-9

Address Resolution Protocol

See ARP

adjacency tables, with CEF 38-76

administrative distances

defined 38-88

OSPF 38-32

routing protocol defaults 38-79

advanced IP services feature set 1-2

advanced IP services image 39-1

advertisements

CDP 27-1

LLDP 28-2

RIP 38-20

VTP 13-19, 14-3

aggregatable global unicast addresses 39-3

aggregate addresses, BGP 38-60

aggregated ports

See EtherChannel

aggregate policers 36-61

aggregate policing 1-11

aging, accelerating 18-9

aging time

accelerated

for MSTP 19-23

for STP 18-9, 18-23

MAC address table 7-21

maximum

for MSTP 19-24

for STP 18-23, 18-24

alarms, RMON 31-3

allowed-VLAN list 13-21

application engines, redirecting traffic to 41-1

area border routers

See ABRs

ARP

configuring 38-10

defined 1-6, 7-27, 38-10

encapsulation 38-11

static cache configuration 38-10

table

address resolution 7-27

managing 7-27

ASBRs 38-25

AS-path filters, BGP 38-54

asymmetrical links, and IEEE 802.1Q tunneling 17-4

attributes, RADIUS

vendor-proprietary 9-30

vendor-specific 9-29

audience xliii

authentication

EIGRP 38-41

HSRP 40-9

local mode with AAA 9-36

NTP associations 7-4

RADIUS

key 9-21

login 9-23

TACACS+

defined 9-11

key 9-13

login 9-14

See also port-based authentication

authentication failed VLAN

See restricted VLAN

authentication keys, and routing protocols 38-89

authoritative time source, described 7-2

authorization

with RADIUS 9-27

with TACACS+ 9-11, 9-16

authorized ports with IEEE 802.1x 10-7

autoconfiguration 3-3

automatic advise (auto-advise) in switch stacks 5-12

automatic copy (auto-copy) in switch stacks 5-12

automatic discovery

considerations

beyond a noncandidate device 6-8

brand new switches 6-10

connectivity 6-5

different VLANs 6-7

management VLANs 6-8

non-CDP-capable devices 6-6

noncluster-capable devices 6-6

routed ports 6-9

in switch clusters 6-5

See also CDP

automatic extraction (auto-extract) in switch stacks 5-12

automatic QoS

See QoS

automatic recovery, clusters 6-11

See also HSRP

automatic upgrades (auto-upgrade) in switch stacks 5-12

auto-MDIX

configuring 11-25

described 11-25

autonegotiation

duplex mode 1-4

interface configuration guidelines 11-22

mismatches 45-13

autonomous system boundary routers

See ASBRs

autonomous systems, in BGP 38-48

Auto-RP, described 42-6

autosensing, port speed 1-4

auxiliary VLAN

See voice VLAN

availability, features 1-7

B

BackboneFast

described 20-7

disabling 20-17

enabling 20-16

support for 1-7

backup interfaces

See Flex Links

backup links 21-2

banners

configuring

login 7-19

message-of-the-day login 7-18

default configuration 7-17

when displayed 7-17

BGP

aggregate addresses 38-60

aggregate routes, configuring 38-60

CIDR 38-60

clear commands 38-63

community filtering 38-57

configuring neighbors 38-58

default configuration 38-45

described 38-45

enabling 38-48

monitoring 38-63

multipath support 38-52

neighbors, types of 38-48

path selection 38-52

peers, configuring 38-58

prefix filtering 38-56

resetting sessions 38-50

route dampening 38-62

route maps 38-54

BGP

route reflectors 38-61

routing domain confederation 38-61

routing session with multi-VRF CE 38-70

show commands 38-63

supernets 38-60

support for 1-11

Version 4 38-45

binding cluster group and HSRP group 40-11

binding database

address, DHCP server

See DHCP, Cisco IOS server database

DHCP snooping

See DHCP snooping binding database

bindings

address, Cisco IOS DHCP server 22-6

DHCP snooping database 22-7

IP source guard 22-16

binding table, DHCP snooping

See DHCP snooping binding database

blocking packets 26-6

Boolean expressions in tracked lists 40-14

booting

boot loader, function of 3-2

boot process 3-2

manually 3-13

specific image 3-14

boot loader

accessing 3-15

described 3-2

environment variables 3-15

prompt 3-15

trap-door mechanism 3-2

bootstrap router (BSR), described 42-7

Border Gateway Protocol

See BGP

BPDU

error-disabled state 20-2

filtering 20-3

RSTP format 19-12

BPDU filtering

described 20-3

disabling 20-15

enabling 20-14

support for 1-7

BPDU guard

described 20-2

disabling 20-14

enabling 20-13

support for 1-7

bridged packets, ACLs on 34-38

bridge groups

See fallback bridging

bridge protocol data unit

See BPDU

broadcast flooding 38-17

broadcast packets

directed 38-14

flooded 38-14

broadcast storm-control command 26-4

broadcast storms 26-1, 38-14

C

cables, monitoring for unidirectional links 29-1

candidate switch

automatic discovery 6-5

defined 6-4

requirements 6-4

See also command switch, cluster standby group, and member switch

CA trustpoint

configuring 9-45

defined 9-43

caution, described xliv

CDP

and trusted boundary 36-42

automatic discovery in switch clusters 6-5

configuring 27-2

default configuration 27-2

defined with LLDP 28-1

described 27-1

disabling for routing device27-3to 27-4

enabling and disabling

on an interface 27-4

on a switch 27-3

Layer 2 protocol tunneling 17-8

monitoring 27-5

overview 27-1

power negotiation extensions 11-6

support for 1-6

switch stack considerations 27-2

transmission timer and holdtime, setting 27-2

updates 27-2

CEF

defined 38-76

distributed 38-76

IPv6 39-15

CGMP

as IGMP snooping learning method 24-9

clearing cached group entries 42-52

enabling server support 42-34

joining multicast group 24-3

overview 42-9

server support only 42-9

switch support of 1-4

CIDR 38-60

CipherSuites 9-44

Cisco 7960 IP Phone 15-1

Cisco Discovery Protocol

See CDP

Cisco Express Forwarding

See CEF

Cisco Group Management Protocol

See CGMP

Cisco intelligent power management 11-6

Cisco IOS DHCP server

See DHCP, Cisco IOS DHCP server

Cisco IOS File System

See IFS

Cisco Network Assistant

See Network Assistant

Cisco Redundant Power System 2300

configuring 11-35

managing 11-35

Cisco StackWise Plus technology 1-3

See also stacks, switch

CiscoWorks 2000 1-5, 33-4

CIST regional root

See MSTP

CIST root

See MSTP

classless interdomain routing

See CIDR

classless routing 38-8

class maps for QoS

configuring 36-49

described 36-7

displaying 36-81

class of service

See CoS

clearing interfaces 11-39

CLI

abbreviating commands 2-4

command modes 2-1

configuration logging 2-5

described 1-5

editing features

enabling and disabling 2-7

keystroke editing 2-8

wrapped lines 2-9

CLI

error messages 2-5

filtering command output 2-10

getting help 2-3

history

changing the buffer size 2-6

described 2-6

disabling 2-7

recalling commands 2-6

managing clusters 6-18

no and default forms of commands 2-4

client mode, VTP 14-3

client processes, tracking 40-12

clock

See system clock

cluster requirements xliv

clusters, switch

accessing 6-14

automatic discovery 6-5

automatic recovery 6-11

benefits 1-2

compatibility 6-4

described 6-1

LRE profile considerations 6-17

managing

through CLI 6-18

through SNMP 6-19

planning 6-4

planning considerations

automatic discovery 6-5

automatic recovery 6-11

CLI 6-18

host names 6-14

IP addresses 6-14

LRE profiles 6-17

clusters, switch

passwords 6-15

RADIUS 6-17

SNMP 6-15, 6-19

switch stacks 6-16

TACACS+ 6-17

See also candidate switch, command switch, cluster standby group, member switch, and standby command switch

cluster standby group

and HSRP group 40-11

automatic recovery 6-13

considerations 6-12

defined 6-2

requirements 6-3

virtual IP address 6-12

See also HSRP

CNS

Configuration Engine

configID, deviceID, hostname 4-3

configuration service 4-2

described 4-1

event service 4-3

embedded agents

described 4-5

enabling automated configuration 4-6

enabling configuration agent 4-9

enabling event agent 4-8

management functions 1-5

Coarse Wave Division Multiplexer

See CWDM SFPs

command-line interface

See CLI

command modes 2-1

commands

abbreviating 2-4

no and default 2-4

commands, setting privilege levels 9-8

command switch

accessing 6-12

active (AC) 6-11

configuration conflicts 45-13

defined 6-2

passive (PC) 6-11

password privilege levels 6-18

priority 6-11

recovery

from command-switch failure 6-11, 45-9

from lost member connectivity 45-13

redundant 6-11

replacing

with another switch 45-11

with cluster member 45-10

requirements 6-3

standby (SC) 6-11

See also candidate switch, cluster standby group, member switch, and standby command switch

community list, BGP 38-57

community ports 16-2

community strings

configuring 6-15, 33-8

for cluster switches 33-4

in clusters 6-15

overview 33-4

SNMP 6-15

community VLANs 16-2, 16-3

compatibility, feature 26-11

compatibility, software

See stacks, switch

config.text 3-12

configurable leave timer, IGMP 24-6

configuration, initial

defaults 1-13

Express Setup 1-2

See also getting started guide and hardware installation guide

configuration conflicts, recovering from lost member connectivity 45-13

configuration examples, network 1-16

configuration files

clearing the startup configuration B-20

creating using a text editor B-11

default name 3-12

deleting a stored configuration B-20

described B-9

downloading

automatically 3-12

preparing B-11, B-14, B-17

reasons for B-9

using FTP B-14

using RCP B-18

using TFTP B-12

guidelines for creating and using B-10

invalid combinations when copying B-6

limiting TFTP server access 33-16

obtaining with DHCP 3-7

password recovery disable considerations 9-5

specifying the filename 3-12

system contact and location information 33-15

types and location B-10

uploading

preparing B-11, B-14, B-17

reasons for B-9

using FTP B-15

using RCP B-19

using TFTP B-12

configuration guidelines, multi-VRF CE 38-67

configuration logging 2-5

configuration settings, saving 3-11

configure terminal command 11-16

config-vlan mode 2-2, 13-7

conflicts, configuration 45-13

connections, secure remote 9-38

connectivity problems 45-15, 45-17, 45-18

consistency checks in VTP Version 2 14-4

console port, connecting to 2-11

content-routing technology

See WCCP

conventions

command xliii

for examples xliv

publication xliii

text xliii

corrupted software, recovery steps with Xmodem 45-2

CoS

in Layer 2 frames 36-2

override priority 15-6

trust priority 15-6

CoS input queue threshold map for QoS 36-17

CoS output queue threshold map for QoS 36-21

CoS-to-DSCP map for QoS 36-63

counters, clearing interface 11-39

crashinfo file 45-25

critical authentication, IEEE 802.1x 10-36

cross-stack EtherChannel

configuration guidelines 37-13

configuring

on Layer 2 interfaces 37-13

on Layer 3 physical interfaces 37-16

described 37-3

illustration 37-4

support for 1-7

cross-stack UplinkFast, STP

described 20-5

disabling 20-16

enabling 20-16

fast-convergence events 20-7

Fast Uplink Transition Protocol 20-6

normal-convergence events 20-7

support for 1-7

cryptographic software image

Kerberos 9-32

SSH 9-37

SSL 9-42

switch stack considerations 5-2, 5-17, 9-38

customer edge devices 38-65

CWDM SFPs 1-30

D

daylight saving time 7-13

dCEF in the switch stack 38-76

debugging

enabling all system diagnostics 45-22

enabling for a specific feature 45-21

redirecting error message output 45-22

using commands 45-21

default commands 2-4

default configuration

802.1x 10-22

auto-QoS 36-23

banners 7-17

BGP 38-45

booting 3-12

CDP 27-2

DHCP 22-8

DHCP option 82 22-8

DHCP snooping 22-8

DHCP snooping binding database 22-9

DNS 7-16

dynamic ARP inspection 23-5

EIGRP 38-37

EtherChannel 37-11

Ethernet interfaces 11-21

fallback bridging 44-4

Flex Links 21-5

default configuration

HSRP 40-5

IEEE 802.1Q tunneling 17-4

IGMP 42-29

IGMP filtering 24-25

IGMP snooping 24-7, 25-6

IGMP throttling 24-25

initial switch information 3-3

IP addressing, IP routing 38-6

IP multicast routing 42-10

IP source guard 22-17

IPv6 39-11

Layer 2 interfaces 11-21

Layer 2 protocol tunneling 17-11

LLDP 28-3

MAC address table 7-21

MAC address-table move update 21-5

MSDP 43-4

MSTP 19-15

multi-VRF CE 38-67

MVR 24-20

NTP 7-4

optional spanning-tree configuration 20-12

OSPF 38-26

password and privilege level 9-2

PIM 42-10

private VLANs 16-7

RADIUS 9-20

RIP 38-21

RMON 31-3

RSPAN 30-11

SDM template 8-4

SNMP 33-7

SPAN 30-11

SSL 9-44

standard QoS 36-33

STP 18-13

switch stacks 5-20

system message logging 32-4

default configuration

system name and prompt 7-15

TACACS+ 9-13

UDLD 29-4

VLAN, Layer 2 Ethernet interfaces 13-19

VLANs 13-8

VMPS 13-29

voice VLAN 15-3

VTP 14-7

WCCP 41-5

default gateway 3-10, 38-12

default networks 38-79

default routes 38-79

default routing 38-3

deleting VLANs 13-10

denial-of-service attack 26-1

description command 11-30

designing your network, examples 1-16

desktop template 5-10, 8-1

destination addresses

in IPv4 ACLs 34-12

in IPv6 ACLs 35-6

destination-IP address-based forwarding, EtherChannel 37-9

destination-MAC address forwarding, EtherChannel 37-8

detecting indirect link failures, STP 20-8

device B-20

device discovery protocol 27-1, 28-1

device manager

benefits 1-2

described 1-3, 1-5

in-band management 1-6

requirements xliv

upgrading a switch B-20

DHCP

Cisco IOS server database

configuring 22-14

default configuration 22-9

described 22-6

enabling

relay agent 22-11

server 22-10

DHCP-based autoconfiguration

client request message exchange 3-4

configuring

client side 3-4

DNS 3-6

relay device 3-7

server side 3-5

server-side 22-10

TFTP server 3-6

example 3-8

lease options

for IP address information 3-5

for receiving the configuration file 3-5

overview 3-3

relationship to BOOTP 3-4

relay support 1-6, 1-12

support for 1-6

DHCP binding database

See DHCP snooping binding database

DHCP binding table

See DHCP snooping binding database

DHCP option 82

circuit ID suboption 22-5

configuration guidelines 22-9

default configuration 22-8

displaying 22-15

forwarding address, specifying 22-11

DHCP option 82

helper address 22-11

overview 22-3

packet format, suboption

circuit ID 22-5

remote ID 22-5

remote ID suboption 22-5

DHCP snooping

accepting untrusted packets form edge switch 22-3, 22-13

and private VLANs 22-14

binding database

See DHCP snooping binding database

configuration guidelines 22-9

default configuration 22-8

displaying binding tables 22-15

message exchange process 22-4

option 82 data insertion 22-3

trusted interface 22-2

untrusted interface 22-2

untrusted messages 22-2

DHCP snooping binding database

adding bindings 22-14

binding entries, displaying 22-15

binding file

format 22-7

location 22-7

bindings 22-7

clearing agent statistics 22-15

configuration guidelines 22-10

configuring 22-14

default configuration 22-8, 22-9

deleting

binding file 22-15

bindings 22-15

database agent 22-15

DHCP snooping binding database

described 22-6

displaying 22-15

binding entries 22-15

status and statistics 22-15

displaying status and statistics 22-15

enabling 22-14

entry 22-7

renewing database 22-15

resetting

delay value 22-15

timeout value 22-15

DHCP snooping binding table

See DHCP snooping binding database

diagnostic schedule command 46-2

Differentiated Services architecture, QoS 36-2

Differentiated Services Code Point 36-2

Diffusing Update Algorithm (DUAL) 38-35

directed unicast requests 1-6

directories

changing B-4

creating and removing B-5

displaying the working B-4

discovery, clusters

See automatic discovery

Distance Vector Multicast Routing Protocol

See DVMRP

distance-vector protocols 38-3

distribute-list command 38-88

DNS

and DHCP-based autoconfiguration 3-6

default configuration 7-16

displaying the configuration 7-17

in IPv6 39-4

overview 7-15

setting up 7-16

support for 1-6

documentation, related xliv

document conventions xliii

domain names

DNS 7-15

VTP 14-8

Domain Name System

See DNS

dot1q-tunnel switchport mode 13-18

double-tagged packets

IEEE 802.1Q tunneling 17-2

Layer 2 protocol tunneling 17-10

downloading

configuration files

preparing B-11, B-14, B-17

reasons for B-9

using FTP B-14

using RCP B-18

using TFTP B-12

image files

deleting old image B-25

preparing B-23, B-26, B-31

reasons for B-20

using CMS 1-3

using FTP B-27

using HTTP 1-3, B-20

using RCP B-32

using TFTP B-23

using the device manager or Network Assistant B-20

drop threshold for Layer 2 protocol packets 17-11

DSCP 1-10, 36-2

DSCP input queue threshold map for QoS 36-17

DSCP output queue threshold map for QoS 36-21

DSCP-to-CoS map for QoS 36-66

DSCP-to-DSCP-mutation map for QoS 36-67

DSCP transparency 36-42

DTP 1-8, 13-17

DUAL finite state machine, EIGRP 38-36

dual IPv4 and IPv6 templates 8-2, 39-1, 39-9

dual protocol stacks

configuring 39-13

IPv4 and IPv6 39-9

SDM templates supporting 39-9

DVMRP

autosummarization

configuring a summary address 42-48

disabling 42-50

connecting PIM domain to DVMRP router 42-41

enabling unicast routing 42-44

interoperability

with Cisco devices 42-39

with Cisco IOS software 42-8

mrinfo requests, responding to 42-43

neighbors

advertising the default route to 42-42

discovery with Probe messages 42-39

displaying information 42-43

prevent peering with nonpruning 42-46

rejecting nonpruning 42-45

overview 42-8

routes

adding a metric offset 42-51

advertising all 42-50

advertising the default route to neighbors 42-42

caching DVMRP routes learned in report messages 42-44

changing the threshold for syslog messages 42-47

deleting 42-52

displaying 42-52

favoring one over another 42-51

limiting the number injected into MBONE 42-47

limiting unicast route advertisements 42-39

routing table 42-9

source distribution tree, building 42-9

support for 1-12

DVMRP

tunnels

configuring 42-41

displaying neighbor information 42-43

dynamic access ports

characteristics 13-4

configuring 13-31

defined 11-3

dynamic addresses

See addresses

dynamic ARP inspection

ARP cache poisoning 23-1

ARP requests, described 23-1

ARP spoofing attack 23-1

clearing

log buffer 23-15

statistics 23-15

configuration guidelines 23-6

configuring

ACLs for non-DHCP environments 23-8

in DHCP environments 23-7

log buffer 23-12

rate limit for incoming ARP packets 23-4, 23-10

default configuration 23-5

denial-of-service attacks, preventing 23-10

described 23-1

DHCP snooping binding database 23-2

displaying

ARP ACLs 23-14

configuration and operating state 23-14

log buffer 23-15

statistics 23-15

trust state and rate limit 23-14

error-disabled state for exceeding rate limit 23-4

function of 23-2

dynamic ARP inspection

interface trust states 23-3

log buffer

clearing 23-15

configuring 23-12

displaying 23-15

logging of dropped packets, described 23-5

man-in-the middle attack, described 23-2

network security issues and interface trust states 23-3

priority of ARP ACLs and DHCP snooping entries 23-4

rate limiting of ARP packets

configuring 23-10

described 23-4

error-disabled state 23-4

statistics

clearing 23-15

displaying 23-15

validation checks, performing 23-11

dynamic auto trunking mode 13-18

dynamic desirable trunking mode 13-18

Dynamic Host Configuration Protocol

See DHCP-based autoconfiguration

dynamic port VLAN membership

described 13-29

reconfirming 13-31, 13-32

troubleshooting 13-33

types of connections 13-31

dynamic routing 38-3

Dynamic Trunking Protocol

See DTP

E

EBGP 38-44

editing features

enabling and disabling 2-7

keystrokes used 2-8

wrapped lines 2-9

EIGRP

authentication 38-41

components 38-36

configuring 38-39

default configuration 38-37

definition 38-35

interface parameters, configuring 38-40

monitoring 38-43

stub routing 38-42

support for 1-11

elections

See stack master

enable password 9-3

enable secret password 9-3

encryption, CipherSuite 9-44

encryption for passwords 9-3

Enhanced IGRP

See EIGRP

enhanced object tracking

commands 40-12

defined 40-12

HSRP 40-17

IP routing state 40-13

line-protocol state 40-13

tracked lists 40-14

environment variables, function of 3-16

equal-cost routing 1-12, 38-77

error-disabled state

BPDU 20-2

error messages during command entry 2-5

EtherChannel

automatic creation of 37-5, 37-7

channel groups

binding physical and logical interfaces 37-4

numbering of 37-4

configuration guidelines 37-12

EtherChannel

configuring

Layer 2 interfaces 37-13

Layer 3 physical interfaces 37-16

Layer 3 port-channel logical interfaces 37-15

default configuration 37-11

described 37-2

displaying status 37-23

forwarding methods 37-8, 37-18

IEEE 802.3ad, described 37-7

interaction

with STP 37-12

with VLANs 37-12

LACP

described 37-7

displaying status 37-23

hot-standby ports 37-20

interaction with other features 37-7

modes 37-7

port priority 37-22

system priority 37-21

Layer 3 interface 38-5

load balancing 37-8, 37-18

logical interfaces, described 37-4

PAgP

aggregate-port learners 37-19

compatibility with Catalyst 1900 37-19

described 37-5

displaying status 37-23

interaction with other features 37-6

learn method and priority configuration 37-19

modes 37-6

support for 1-4

port-channel interfaces

described 37-4

numbering of 37-4

port groups 11-5

stack changes, effects of 37-10

support for 1-4

EtherChannel guard

described 20-10

disabling 20-17

enabling 20-17

Ethernet management port

active link 11-12

and routing processes 11-14

and routing protocols 11-13

and switch stacks 11-12

configuring 11-31

connecting to 2-11

default setting 11-13

described 11-12

for network management 11-12

specifying 11-31

supported features 11-14

unsupported features 11-14

Ethernet VLANs

adding 13-9

defaults and ranges 13-8

modifying 13-9

EUI 39-4

events, RMON 31-3

examples

conventions for xliv

network configuration 1-16

expedite queue for QoS 36-79

Express Setup 1-2

See also getting started guide

extended crashinfo file 45-25

extended-range VLANs

configuration guidelines 13-13

configuring 13-12

creating 13-14

creating with an internal VLAN ID 13-15

defined 13-1

extended system ID

MSTP 19-18

STP 18-4, 18-16

extended universal identifier

See EUI

Extensible Authentication Protocol over LAN 10-1

external BGP

See EBGP

external neighbors, BGP 38-48

F

Fa0 port

See Ethernet management port

failover support 1-7

fallback bridging

and protected ports 44-4

bridge groups

creating 44-4

described 44-2

displaying 44-11

function of 44-2

number supported 44-5

removing 44-5

bridge table

clearing 44-11

displaying 44-11

configuration guidelines 44-4

connecting interfaces with 11-12

default configuration 44-4

described 44-1

frame forwarding

flooding packets 44-2

forwarding packets 44-2

overview 44-1

protocol, unsupported 44-4

stack changes, effects of 44-3

fallback bridging

STP

disabling on an interface 44-11

forward-delay interval 44-10

hello BPDU interval 44-9

interface priority 44-7

keepalive messages 18-2

maximum-idle interval 44-10

path cost 44-8

VLAN-bridge spanning-tree priority 44-7

VLAN-bridge STP 44-2

support for 1-12

SVIs and routed ports 44-2

unsupported protocols 44-4

VLAN-bridge STP 18-11

fastethernet0 port

See Ethernet management port

Fast Uplink Transition Protocol 20-6

features, incompatible 26-11

FIB 38-76

fiber-optic, detecting unidirectional links 29-1

files

basic crashinfo

description 45-25

location 45-25

copying B-5

crashinfo

description 45-25

deleting B-6

displaying the contents of B-8

extended crashinfo

description 45-26

location 45-26

tar

creating B-7

displaying the contents of B-7

extracting B-8

image file format B-21

file system

displaying available file systems B-2

displaying file information B-4

local file system names B-1

network file system names B-5

setting the default B-3

filtering

in a VLAN 34-29

IPv6 traffic 35-4, 35-8

non-IP traffic 34-27

show and more command output 2-10

filtering show and more command output 2-10

filters, IP

See ACLs, IP

flash device, number of B-1

Flex Links

configuration guidelines 21-5

configuring 21-6, 21-7

configuring preferred VLAN 21-9

configuring VLAN load balancing 21-8

default configuration 21-5

description 21-1

link load balancing 21-2

monitoring 21-11

VLANs 21-2

flooded traffic, blocking 26-7

flow-based packet classification 1-10

flowcharts

QoS classification 36-6

QoS egress queueing and scheduling 36-18

QoS ingress queueing and scheduling 36-15

QoS policing and marking 36-10

flowcontrol

configuring 11-24

described 11-24

forward-delay time

MSTP 19-23

STP 18-23

Forwarding Information Base

See FIB

forwarding nonroutable protocols 44-1

FTP

accessing MIB files A-4

configuration files

downloading B-14

overview B-13

preparing the server B-14

uploading B-15

image files

deleting old image B-29

downloading B-27

preparing the server B-26

uploading B-29

G

get-bulk-request operation 33-3

get-next-request operation 33-3, 33-5

get-request operation 33-3, 33-5

get-response operation 33-3

Gigabit modules

See SFPs

global configuration mode 2-2

global leave, IGMP 24-13

guest VLAN and 802.1x 10-12

guide

audience xliii

purpose of xliii

guide mode 1-3

GUIs

See device manager and Network Assistant

H

hardware limitations and Layer 3 interfaces 11-31

hello time

MSTP 19-22

STP 18-22

help, for the command line 2-3

hierarchical policy maps 36-8

configuration guidelines 36-35

configuring 36-55

described 36-11

history

changing the buffer size 2-6

described 2-6

disabling 2-7

recalling commands 2-6

history table, level and number of syslog messages 32-10

host names in clusters 6-14

host ports

configuring 16-12

kinds of 16-2

hosts, limit on dynamic ports 13-33

Hot Standby Router Protocol

See HSRP

HP OpenView 1-5

HSRP

authentication string 40-9

automatic cluster recovery 6-13

binding to cluster group 40-11

cluster standby group considerations 6-12

command-switch redundancy 1-1, 1-7

configuring 40-4

default configuration 40-5

definition 40-1

guidelines 40-5

monitoring 40-11

HSRP

object tracking 40-17

overview 40-1

priority 40-7

routing redundancy 1-11

support for ICMP redirect messages 40-11

switch stack considerations 40-4

timers 40-10

tracking 40-7

See also clusters, cluster standby group, and standby command switch

HTTP over SSL

see HTTPS

HTTPS 9-42

configuring 9-46

self-signed certificate 9-43

HTTP secure server 9-42

I

IBPG 38-44

ICMP

IPv6 39-4

redirect messages 38-12

support for 1-12

time-exceeded messages 45-19

traceroute and 45-19

unreachable messages 34-20

unreachable messages and IPv6 35-4

unreachables and ACLs 34-22

ICMP ping

executing 45-16

overview 45-15

ICMP Router Discovery Protocol

See IRDP

ICMPv6 39-4

IDS appliances

and ingress RSPAN 30-20

and ingress SPAN 30-14

IEEE 802.1D

See STP

IEEE 802.1p 15-1

IEEE 802.1Q

and trunk ports 11-3

configuration limitations 13-19

encapsulation 13-16

native VLAN for untagged traffic 13-23

tunneling

compatibility with other features 17-6

defaults 17-4

described 17-1

tunnel ports with other features 17-6

IEEE 802.1s

See MSTP

IEEE 802.1w

See RSTP

IEEE 802.1x

See port-based authentication

IEEE 802.3ad

See EtherChannel

IEEE 802.3af

See PoE

IEEE 802.3x flow control 11-24

ifIndex values, SNMP 33-6

IFS 1-6

IGMP

configurable leave timer

described 24-6

enabling 24-12

configuring the switch

as a member of a group 42-29

statically connected member 42-33

controlling access to groups 42-30

default configuration 42-29

deleting cache entries 42-52

IGMP

displaying groups 42-53

fast switching 42-34

flooded multicast traffic

controlling the length of time 24-13

disabling on an interface 24-14

global leave 24-13

query solicitation 24-13

recovering from flood mode 24-13

host-query interval, modifying 42-31

joining multicast group 24-3

join messages 24-3

leave processing, enabling 24-11, 25-9

leaving multicast group 24-5

multicast reachability 42-29

overview 42-3

queries 24-4

report suppression

described 24-6

disabling 24-16, 25-11

supported versions 24-3

support for 1-4

Version 1

changing to Version 2 42-31

described 42-3

Version 2

changing to Version 1 42-31

described 42-3

maximum query response time value 42-33

pruning groups 42-33

query timeout value 42-32

IGMP filtering

configuring 24-25

default configuration 24-25

described 24-24

monitoring 24-29

support for 1-5

IGMP groups

configuring filtering 24-28

setting the maximum number 24-27

IGMP Immediate Leave

configuration guidelines 24-12

described 24-6

enabling 24-11

IGMP profile

applying 24-27

configuration mode 24-25

configuring 24-26

IGMP snooping

and address aliasing 24-2

and stack changes 24-7

configuring 24-7

default configuration 24-7, 25-6

definition 24-2

enabling and disabling 24-8, 25-7

global configuration 24-8

Immediate Leave 24-6

in the switch stack 24-7

method 24-9

monitoring 24-17, 25-11

querier

configuration guidelines 24-15

configuring 24-15

supported versions 24-3

support for 1-4

VLAN configuration 24-8

IGMP throttling

configuring 24-28

default configuration 24-25

described 24-25

displaying action 24-29

IGP 38-25

Immediate Leave, IGMP 24-6

enabling 25-9

inaccessible authentication bypass 10-14

initial configuration

defaults 1-13

Express Setup 1-2

See also getting started guide and hardware installation guide

interface

number 11-16

range macros 11-19

interface command11-15to 11-16

interface configuration mode 2-3

interfaces

auto-MDIX, configuring 11-25

configuring

IPv4 and IPv6 39-13

procedure 11-16

counters, clearing 11-39

default configuration 11-21

described 11-30

descriptive name, adding 11-30

displaying information about 11-38

duplex and speed configuration guidelines 11-22

flow control 11-24

management 1-5

monitoring 11-38

naming 11-30

physical, identifying 11-15

range of 11-17

restarting 11-40

shutting down 11-40

speed and duplex, configuring 11-23

status 11-38

supported 11-15

types of 11-1

interfaces range macro command 11-19

interface types 11-15

Interior Gateway Protocol

See IGP

internal BGP

See IBGP

internal neighbors, BGP 38-48

internal power supplies

See power supplies

Internet Control Message Protocol

See ICMP

Internet Group Management Protocol

See IGMP

Internet Protocol version 6

See IPv6

Inter-Switch Link

See ISL

inter-VLAN routing 1-11, 38-2

Intrusion Detection System

See IDS appliances

IP ACLs

for QoS classification 36-7

implicit deny 34-10, 34-14

implicit masks 34-10

named 34-15

undefined 34-21

IP addresses

128-bit 39-2

candidate or member 6-4, 6-14

classes of 38-7

cluster access 6-2

command switch 6-3, 6-12, 6-14

default configuration 38-6

discovering 7-27

for IP routing 38-5

IPv6 39-2

IP addresses

MAC address association 38-9

monitoring 38-18

redundant clusters 6-12

standby command switch 6-12, 6-14

See also IP information

IP base feature set 1-1

IP broadcast address 38-17

ip cef distributed command 38-76

IP directed broadcasts 38-15

ip igmp profile command 24-25

IP information

assigned

manually 3-10

through DHCP-based autoconfiguration 3-3

default configuration 3-3

IP multicast routing

addresses

all-hosts 42-3

all-multicast-routers 42-3

host group address range 42-3

administratively-scoped boundaries, described 42-37

and IGMP snooping 24-2

Auto-RP

adding to an existing sparse-mode cloud 42-16

benefits of 42-16

clearing the cache 42-52

configuration guidelines 42-11

filtering incoming RP announcement messages 42-18

overview 42-6

preventing candidate RP spoofing 42-18

preventing join messages to false RPs 42-18

setting up in a new internetwork 42-16

using with BSR 42-24

IP multicast routing

bootstrap router

configuration guidelines 42-11

configuring candidate BSRs 42-22

configuring candidate RPs 42-23

defining the IP multicast boundary 42-21

defining the PIM domain border 42-20

overview 42-7

using with Auto-RP 42-24

Cisco implementation 42-2

configuring

basic multicast routing 42-12

IP multicast boundary 42-37

default configuration 42-10

enabling

multicast forwarding 42-12

PIM mode 42-13

group-to-RP mappings

Auto-RP 42-6

BSR 42-7

MBONE

deleting sdr cache entries 42-52

described 42-35

displaying sdr cache 42-53

enabling sdr listener support 42-36

limiting DVMRP routes advertised 42-47

limiting sdr cache entry lifetime 42-36

SAP packets for conference session announcement 42-35

Session Directory (sdr) tool, described 42-35

monitoring

packet rate loss 42-53

peering devices 42-53

tracing a path 42-53

multicast forwarding, described 42-7

PIMv1 and PIMv2 interoperability 42-11

protocol interaction 42-2

IP multicast routing

reverse path check (RPF) 42-7

routing table

deleting 42-52

displaying 42-53

RP

assigning manually 42-14

configuring Auto-RP 42-16

configuring PIMv2 BSR 42-20

monitoring mapping information 42-25

using Auto-RP and BSR 42-24

stacking

stack master functions 42-9

stack member functions 42-9

statistics, displaying system and network 42-52

See also CGMP

See also DVMRP

See also IGMP

See also PIM

IP phones

and QoS 15-1

automatic classification and queueing 36-22

configuring 15-4

ensuring port security with QoS 36-41

trusted boundary for QoS 36-41

IP precedence 36-2

IP-precedence-to-DSCP map for QoS 36-64

IP protocols

in ACLs 34-12

routing 1-11

IP protocols in ACLs 34-12

IP routes, monitoring 38-90

IP routing

connecting interfaces with 11-12

disabling 38-19

enabling 38-19

IP services feature set 1-2

IP source guard

and 802.1x 22-18

and DHCP snooping 22-16

and EtherChannels 22-18

and hardware entries 22-18

and port security 22-17

and private VLANs 22-18

and routed ports 22-17

and trunk interfaces 22-17

and VRF 22-18

binding configuration

automatic 22-16

manual 22-16

binding table 22-16

configuration guidelines 22-17

default configuration 22-17

described 22-16

disabling 22-18

displaying

bindings 22-19

configuration 22-19

enabling 22-18

filtering

source IP address 22-16

source IP and MAC address 22-17

source IP address filtering 22-16

source IP and MAC address filtering 22-17

static bindings

adding 22-18

deleting 22-18

IP traceroute

executing 45-19

overview 45-18

IP unicast routing

address resolution 38-9

administrative distances 38-79, 38-88

ARP 38-10

assigning IP addresses to Layer 3 interfaces 38-7

authentication keys 38-89

broadcast

address 38-17

flooding 38-17

packets 38-14

storms 38-14

classless routing 38-8

configuring static routes 38-78

default

addressing configuration 38-6

gateways 38-12

networks 38-79

routes 38-79

routing 38-3

directed broadcasts 38-15

disabling 38-19

dynamic routing 38-3

enabling 38-19

EtherChannel Layer 3 interface 38-5

IGP 38-25

inter-VLAN 38-2

IP addressing

classes 38-7

configuring 38-5

IPv6 39-3

IRDP 38-13

Layer 3 interfaces 38-5

MAC address and IP address 38-9

IP unicast routing

passive interfaces 38-87

protocols

distance-vector 38-3

dynamic 38-3

link-state 38-3

proxy ARP 38-10

redistribution 38-80

reverse address resolution 38-9

routed ports 38-5

static routing 38-3

steps to configure 38-5

subnet mask 38-7

subnet zero 38-7

supernet 38-8

UDP 38-16

unicast reverse path forwarding 1-12, 38-75

with SVIs 38-5

See also BGP

See also EIGRP

See also OSPF

See also RIP

IPv4 ACLs

applying to interfaces 34-20

extended, creating 34-11

named 34-15

standard, creating 34-10

IPv4 and IPv6

configuring on an interface 39-13

differences 39-2

dual protocol stacks 39-6

IPv6

ACLs

displaying 35-9

limitations 35-3

matching criteria 35-3

port 35-2

precedence 35-2

router 35-2

supported 35-3

addresses 39-2

address formats 39-3

advantages 39-2

and switch stacks 39-7

applications 39-5

assigning address 39-11

autoconfiguration 39-5

CEFv6 39-15

configuring static routes 39-16

default configuration 39-11

defined 39-1

enabling 39-11

feature limitations 39-7

features not supported 39-6

ICMP 39-4

ICMP rate limiting 39-15

monitoring 39-22

neighbor discovery 39-4

OSPF 39-20

path MTU discovery 39-4

reasons for 39-1

RIP 39-18

SDM templates 8-2, 25-1, 35-1, 39-9

stack master functions 39-8

supported features 39-3

switch limitations 39-7

IPv6 traffic, filtering 35-4

IRDP

configuring 38-13

definition 38-13

support for 1-12

ISL

and IPv6 39-3

and trunk ports 11-3

encapsulation 1-8, 13-16

trunking with IEEE 802.1 tunneling 17-5

isolated port 16-2

isolated VLANs 16-2, 16-3

J

join messages, IGMP 24-3

K

KDC

described 9-32

See also Kerberos

keepalive messages 18-2

Kerberos

authenticating to

boundary switch 9-34

KDC 9-34

network services 9-35

configuration examples 9-32

configuring 9-35

credentials 9-32

cryptographic software image 9-32

described 9-32

KDC 9-32

operation 9-34

realm 9-33

Kerberos

server 9-33

support for 1-10

switch as trusted third party 9-32

terms 9-33

TGT 9-34

tickets 9-32

key distribution center

See KDC

L

l2protocol-tunnel command 17-13

LACP

Layer 2 protocol tunneling 17-9

See EtherChannel

Layer 2 frames, classification with CoS 36-2

Layer 2 interfaces, default configuration 11-21

Layer 2 protocol tunneling

configuring 17-10

configuring for EtherChannels 17-14

default configuration 17-11

defined 17-8

guidelines 17-12

Layer 2 traceroute

and ARP 45-18

and CDP 45-17

broadcast traffic 45-17

described 45-17

IP addresses and subnets 45-18

MAC addresses and VLANs 45-17

multicast traffic 45-17

multiple devices on a port 45-18

unicast traffic 45-17

usage guidelines 45-17

Layer 3 features 1-11

Layer 3 interfaces

assigning IP addresses to 38-7

assigning IPv4 and IPv6 addresses to 39-13

assigning IPv6 addresses to 39-12

changing from Layer 2 mode 38-7

types of 38-5

Layer 3 packets, classification methods 36-2

LDAP 4-2

LEDs, switch

See hardware installation guide

lightweight directory access protocol

See LDAP

line configuration mode 2-3

Link Aggregation Control Protocol

See EtherChannel

Link Failure, detecting unidirectional 19-8

Link Layer Discovery Protocol

See CDP

link local unicast addresses 39-4

link redundancy

See Flex Links

links, unidirectional 29-1

link state advertisements (LSAs) 38-31

link-state protocols 38-3

link-state tracking

configuring 37-25

described 37-23

LLDP

configuring 28-3

characteristics 28-3

default configuration 28-3

disabling and enabling

globally 28-4

on an interface 28-5

LLDP

monitoring and maintaining 28-7

overview 28-1

supported TLVs 28-2

switch stack considerations 28-2

transmission timer and holdtime, setting 28-3

LLDP-MED

configuring 28-3

configuring TLVs 28-6

monitoring and maintaining 28-7

overview 28-1, 28-2

supported TLVs 28-2

LLDP Media Endpoint Discovery

See LLDP-MED

load balancing 40-3

local SPAN 30-2

logging messages, ACL 34-9

login authentication

with RADIUS 9-23

with TACACS+ 9-14

login banners 7-17

log messages

See system message logging

Long-Reach Ethernet (LRE) technology 1-18, 1-29

loop guard

described 20-11

enabling 20-18

support for 1-7

LRE profiles, considerations in switch clusters 6-17

M

MAC addresses

aging time 7-21

and VLAN association 7-20

building the address table 7-20

default configuration 7-21

discovering 7-27

displaying 7-27

displaying in the IP source binding table 22-19

dynamic

learning 7-20

removing 7-22

in ACLs 34-27

IP address association 38-9

static

adding 7-25

allowing 7-26

characteristics of 7-24

dropping 7-26

removing 7-25

MAC address notification, support for 1-13

MAC address-table move update

configuration guidelines 21-5

configuring 21-9

default configuration 21-5

description 21-3

monitoring 21-11

MAC address-to-VLAN mapping 13-28

MAC extended access lists

applying to Layer 2 interfaces 34-28

configuring for QoS 36-48

creating 34-27

defined 34-27

for QoS classification 36-5

macros

See Smartports macros

magic packet 10-17

manageability features 1-6

management access

in-band

browser session 1-6

CLI session 1-6

device manager 1-6

SNMP 1-6

out-of-band console port connection 1-6

management options

CLI 2-1

clustering 1-4

CNS 4-1

Network Assistant 1-3

overview 1-5

switch stacks 1-3

management VLAN

considerations in switch clusters 6-8

discovery through different management VLANs 6-8

mapping tables for QoS

configuring

CoS-to-DSCP 36-63

DSCP 36-63

DSCP-to-CoS 36-66

DSCP-to-DSCP-mutation 36-67

IP-precedence-to-DSCP 36-64

policed-DSCP 36-65

described 36-12

marking

action in policy map 36-51

action with aggregate policers 36-61

described 36-4, 36-8

matching

IPv4 ACLs 34-8

maximum aging time

MSTP 19-24

STP 18-23

maximum hop count, MSTP 19-24

maximum-paths command 38-52, 38-78

MDA

configuration guidelines10-19to 10-20

described 1-9, 10-19

exceptions with authentication process 10-4

membership mode, VLAN port 13-3

member switch

automatic discovery 6-5

defined 6-2

managing 6-18

passwords 6-14

recovering from lost connectivity 45-13

requirements 6-4

See also candidate switch, cluster standby group, and standby command switch

messages, to users through banners 7-17

metrics, in BGP 38-52

metric translations, between routing protocols 38-83

metro tags 17-2

MHSRP 40-3

MIBs

accessing files with FTP A-4

location of files A-4

overview 33-1

SNMP interaction with 33-4

supported A-1

mini-point-of-presence

See POP

mirroring traffic for analysis 30-1

mismatches, autonegotiation 45-13

module number 11-15

monitoring

access groups 34-40

BGP 38-63

cables for unidirectional links 29-1

CDP 27-5

CEF 38-77

monitoring

EIGRP 38-43

fallback bridging 44-11

features 1-13

Flex Links 21-11

HSRP 40-11

IEEE 802.1Q tunneling 17-18

IGMP

filters 24-29

snooping 24-17, 25-11

interfaces 11-38

IP

address tables 38-18

multicast routing 42-52

routes 38-90

IPv4 ACL configuration 34-40

IPv6 39-22

IPv6 ACL configuration 35-9

Layer 2 protocol tunneling 17-18

MAC address-table move update 21-11

MSDP peers 43-19

multicast router interfaces 24-17, 25-12

multi-VRF CE 38-75

MVR 24-24

network traffic for analysis with probe 30-2

OSPF 38-35

port

blocking 26-18

protection 26-18

private VLANs 16-15

RP mapping information 42-25

SFP status 11-39, 45-15

source-active messages 43-19

speed and duplex mode 11-23

traffic flowing among switches 31-1

monitoring

traffic suppression 26-18

tunneling 17-18

VLAN

filters 34-41

maps 34-41

VLANs 13-16

VMPS 13-33

VTP 14-16

more 10-43

MSDP

benefits of 43-3

clearing MSDP connections and statistics 43-19

controlling source information

forwarded by switch 43-12

originated by switch 43-9

received by switch 43-14

default configuration 43-4

dense-mode regions

sending SA messages to 43-17

specifying the originating address 43-18

filtering

incoming SA messages 43-14

SA messages to a peer 43-12

SA requests from a peer 43-11

join latency, defined 43-6

meshed groups

configuring 43-16

defined 43-16

originating address, changing 43-18

overview 43-1

peer-RPF flooding 43-2

peers

configuring a default 43-4

monitoring 43-19

peering relationship, overview 43-1

requesting source information from 43-8

shutting down 43-16

MSDP

source-active messages

caching 43-6

clearing cache entries 43-19

defined 43-2

filtering from a peer 43-11

filtering incoming 43-14

filtering to a peer 43-12

limiting data with TTL 43-14

monitoring 43-19

restricting advertised sources 43-9

support for 1-12

MSTP

boundary ports

configuration guidelines 19-16

described 19-6

BPDU filtering

described 20-3

enabling 20-14

BPDU guard

described 20-2

enabling 20-13

CIST, described 19-3

CIST regional root 19-3

CIST root 19-5

configuration guidelines 19-15, 20-12

configuring

forward-delay time 19-23

hello time 19-22

link type for rapid convergence 19-24

maximum aging time 19-24

maximum hop count 19-24

MST region 19-16

neighbor type 19-25

path cost 19-21

port priority 19-20

MSTP

root switch 19-17

secondary root switch 19-19

switch priority 19-22

CST

defined 19-3

operations between regions 19-4

default configuration 19-15

default optional feature configuration 20-12

displaying status 19-26

enabling the mode 19-16

EtherChannel guard

described 20-10

enabling 20-17

extended system ID

effects on root switch 19-18

effects on secondary root switch 19-19

unexpected behavior 19-18

IEEE 802.1s

implementation 19-6

port role naming change 19-7

terminology 19-5

instances supported 18-10

interface state, blocking to forwarding 20-2

interoperability and compatibility among modes 18-11

interoperability with IEEE 802.1D

described 19-9

restarting migration process 19-26

IST

defined 19-3

master 19-3

operations within a region 19-3

loop guard

described 20-11

enabling 20-18

MSTP

mapping VLANs to MST instance 19-16

MST region

CIST 19-3

configuring 19-16

described 19-2

hop-count mechanism 19-5

IST 19-3

supported spanning-tree instances 19-2

optional features supported 1-7

overview 19-2

Port Fast

described 20-2

enabling 20-12

preventing root switch selection 20-10

root guard

described 20-10

enabling 20-18

root switch

configuring 19-18

effects of extended system ID 19-18

unexpected behavior 19-18

shutdown Port Fast-enabled port 20-2

stack changes, effects of 19-8

status, displaying 19-26

MTU

system 11-33

system jumbo 11-33

system routing 11-33

multicast groups

Immediate Leave 24-6

joining 24-3

leaving 24-5

static joins 24-11, 25-8

multicast packets

ACLs on 34-40

blocking 26-7

multicast router interfaces, monitoring 24-17, 25-12

multicast router ports, adding 24-10, 25-8

Multicast Source Discovery Protocol

See MSDP

multicast storm 26-1

multicast storm-control command 26-4

multicast television application 24-19

multicast VLAN 24-18

Multicast VLAN Registration

See MVR

multidomain authentication

See MDA

Multiple HSRP

See MHSRP

multiple VPN routing/forwarding in customer edge devices

See multi-VRF CE

multi-VRF CE

configuration example 38-70

configuration guidelines 38-67

configuring 38-67

default configuration 38-67

defined 38-64

displaying 38-75

monitoring 38-75

network components 38-67

packet-forwarding process 38-66

support for 1-12

MVR

and address aliasing 24-21

and IGMPv3 24-21

configuration guidelines 24-21

configuring interfaces 24-22

MVR

default configuration 24-20

described 24-18

example application 24-19

in the switch stack 24-20

modes 24-22

monitoring 24-24

multicast television application 24-19

setting global parameters 24-21

support for 1-5

N

NAC

AAA down policy 1-10

critical authentication 10-14, 10-36

IEEE 802.1x authentication using a RADIUS server 10-40

IEEE 802.1x validation using RADIUS server 10-40

inaccessible authentication bypass 1-10, 10-36

Layer 2 IEEE 802.1x validation 1-10, 10-40

Layer 2 IEEE802.1x validation 10-19

Layer 2 IP validation 1-10

named IPv4 ACLs 34-15

named IPv6 ACLs 35-3

NameSpace Mapper

See NSM

native VLAN

and IEEE 802.1Q tunneling 17-4

configuring 13-23

default 13-23

neighbor discovery, IPv6 39-4

neighbor discovery/recovery, EIGRP 38-36

neighbors, BGP 38-58

Network Admission Control

See NAC

Network Assistant

benefits 1-2

described 1-5

downloading image files 1-3

guide mode 1-3

management options 1-3

managing switch stacks 5-2, 5-16

requirements xliv

upgrading a switch B-20

wizards 1-3

network configuration examples

cost-effective wiring closet 1-18

high-performance wiring closet 1-18

increasing network performance 1-16

large network 1-26

long-distance, high-bandwidth transport 1-30

multidwelling network 1-29

providing network services 1-17

redundant Gigabit backbone 1-20

server aggregation and Linux server cluster 1-21

small to medium-sized network 1-23

network design

performance 1-17

services 1-17

network management

CDP 27-1

RMON 31-1

SNMP 33-1

Network Time Protocol

See NTP

no commands 2-4

nonhierarchical policy maps

configuration guidelines 36-35

configuring 36-51

described 36-9

non-IP traffic filtering 34-27

nontrunking mode 13-18

normal-range VLANs 13-4

configuration guidelines 13-6

configuration modes 13-7

configuring 13-4

defined 13-1

no switchport command 11-4

note, described xliv

not-so-stubby areas

See NSSA

NSM 4-3

NSSA, OSPF 38-31

NTP

associations

authenticating 7-4

defined 7-2

enabling broadcast messages 7-6

peer 7-5

server 7-5

default configuration 7-4

displaying the configuration 7-11

overview 7-2

restricting access

creating an access group 7-8

disabling NTP services per interface 7-10

source IP address, configuring 7-10

stratum 7-2

support for 1-6

synchronizing devices 7-5

time

services 7-2

synchronizing 7-2

O

OBFL

configuring 45-27

described 45-26

displaying 45-28

object tracking, HSRP 40-17

offline configuration for switch stacks 5-8

on-board failure logging

See OBFL

online diagnostics

described 46-1

overview 46-1

running tests 46-5

Open Shortest Path First

See OSPF

optimizing system resources 8-1

options, management 1-5

OSPF

area parameters, configuring 38-31

configuring 38-29

default configuration

metrics 38-32

route 38-32

settings 38-26

described 38-25

for IPv6 39-20

interface parameters, configuring 38-29

LSA group pacing 38-34

monitoring 38-35

router IDs 38-34

route summarization 38-32

support for 1-11

virtual links 38-32

out-of-profile markdown 1-11

P

packet modification, with QoS 36-21

PAgP

Layer 2 protocol tunneling 17-9

See EtherChannel

parallel paths, in routing tables 38-77

passive interfaces

configuring 38-87

OSPF 38-32

passwords

default configuration 9-2

disabling recovery of 9-5

encrypting 9-3

for security 1-8

in clusters 6-15

overview 9-1

recovery of 45-3

setting

enable 9-3

enable secret 9-3

Telnet 9-6

with usernames 9-6

VTP domain 14-8

path cost

MSTP 19-21

STP 18-20

path MTU discovery 39-4

PBR

defined 38-83

enabling 38-85

fast-switched policy-based routing 38-86

local policy-based routing 38-86

PC (passive command switch) 6-11

peers, BGP 38-58

percentage thresholds in tracked lists 40-16

performance, network design 1-16

performance features 1-4

persistent self-signed certificate 9-43

per-VLAN spanning-tree plus

See PVST+

PE to CE routing, configuring 38-70

physical ports 11-2

PIM

default configuration 42-10

dense mode

overview 42-4

rendezvous point (RP), described 42-5

RPF lookups 42-8

displaying neighbors 42-53

enabling a mode 42-13

overview 42-4

router-query message interval, modifying 42-28

shared tree and source tree, overview 42-25

shortest path tree, delaying the use of 42-27

sparse mode

join messages and shared tree 42-5

overview 42-5

prune messages 42-5

RPF lookups 42-8

stub routing

enabling 42-13

overview 42-5

support for 1-12

versions

interoperability 42-11

troubleshooting interoperability problems 42-25

v2 improvements 42-4

PIM-DVMRP, as snooping method 24-9

ping

character output description 45-16

executing 45-16

overview 45-15

PoE

auto mode 11-8

CDP with power consumption, described 11-6

CDP with power negotiation, described 11-6

Cisco intelligent power management 11-6

configuring 11-26

devices supported 11-6

high-power devices operating in low-power mode 11-7

IEEE power classification levels 11-7

monitoring 11-9

monitoring power 11-29

policing power consumption 11-29

policing power usage 11-9

power budgeting 11-27

power consumption 11-27

powered-device detection and initial power allocation 11-7

power management modes 11-8

power negotiation extensions to CDP 11-6

standards supported 11-6

static mode 11-8

supported watts per port 11-6

troubleshooting 45-13

policed-DSCP map for QoS 36-65

policers

configuring

for each matched traffic class 36-51

for more than one traffic class 36-61

described 36-4

displaying 36-81

number of 36-36

types of 36-9

policing

described 36-4

hierarchical

See hierarchical policy maps

token-bucket algorithm 36-9

policy-based routing

See PBR

policy maps for QoS

characteristics of 36-51

described 36-7

displaying 36-82

hierarchical 36-8

hierarchical on SVIs

configuration guidelines 36-35

configuring 36-55

described 36-11

nonhierarchical on physical ports

configuration guidelines 36-35

configuring 36-51

described 36-9

POP 1-29

port ACLs

defined 34-2

types of 34-3

Port Aggregation Protocol

See EtherChannel

port-based authentication

accounting 10-9

authentication server

defined 10-3

RADIUS server 10-3

client, defined 10-2

configuration guidelines 10-23

configuring

802.1x authentication 10-25

guest VLAN 10-33

host mode 10-28

inaccessible authentication bypass 10-36

manual re-authentication of a client 10-29

periodic re-authentication 10-29

port-based authentication

quiet period 10-30

RADIUS server 10-27

RADIUS server parameters on the switch 10-26

restricted VLAN 10-34

switch-to-client frame-retransmission number 10-31, 10-32

switch-to-client retransmission time 10-30

default configuration 10-22

described 10-1

device roles 10-2

displaying statistics 10-44

EAPOL-start frame 10-5

EAP-request/identity frame 10-5

EAP-response/identity frame 10-5

encapsulation 10-3

guest VLAN

configuration guidelines 10-13, 10-14

described 10-12

host mode 10-8

inaccessible authentication bypass

configuring 10-36

described 10-14

guidelines 10-24

initiation and message exchange 10-5

magic packet 10-17

method lists 10-25

multiple-hosts mode, described 10-8

per-user ACLs

AAA authorization 10-25

configuration tasks 10-12

described 10-11

RADIUS server attributes 10-11

ports

authorization state and dot1x port-control command 10-7

authorized and unauthorized 10-7

critical 10-14

voice VLAN 10-15

port-based authentication

port security

and voice VLAN 10-17

described 10-16

interactions 10-16

multiple-hosts mode 10-8

resetting to default values 10-44

stack changes, effects of 10-7

statistics, displaying 10-44

switch

as proxy 10-3

RADIUS client 10-3

VLAN assignment

AAA authorization 10-25

characteristics 10-10

configuration tasks 10-11

described 10-10

voice VLAN

described 10-15

PVID 10-15

VVID 10-15

wake-on-LAN, described 10-17

port blocking 1-4, 26-6

port-channel

See EtherChannel

Port Fast

described 20-2

enabling 20-12

mode, spanning tree 13-29

support for 1-7

port membership modes, VLAN 13-3

port priority

MSTP 19-20

STP 18-18

ports

10-Gigabit Ethernet 11-6

access 11-3

blocking 26-6

dynamic access 13-4

protected 26-5

routed 11-4

secure 26-7

static-access 13-3, 13-11

switch 11-2

trunks 13-3, 13-16

VLAN assignments 13-11

port security

aging 26-16

and private VLANs 26-17

and QoS trusted boundary 36-41

and stacking 26-17

configuring 26-12

default configuration 26-10

described 26-7

displaying 26-18

enabling 26-17

on trunk ports 26-13

sticky learning 26-8

violations 26-9

with other features 26-10

port-shutdown response, VMPS 13-28

Power over Ethernet

See PoE

power supply

configuring 11-37

managing 11-37

preemption, default configuration 21-5

preemption delay, default configuration 21-5

preferential treatment of traffic

See QoS

prefix lists, BGP 38-56

preventing unauthorized access 9-1

primary links 21-2

primary VLANs 16-1, 16-3

priority

HSRP 40-7

overriding CoS 15-6

trusting CoS 15-6

private VLAN edge ports

See protected ports

private VLANs

across multiple switches 16-4

and SDM template 16-4

and SVIs 16-5

and switch stacks 16-6

benefits of 16-1

community ports 16-2

community VLANs 16-2, 16-3

configuration guidelines 16-7, 16-8

configuration tasks 16-6

configuring 16-10

default configuration 16-7

end station access to 16-3

IP addressing 16-3

isolated port 16-2

isolated VLANs 16-2, 16-3

mapping 16-14

monitoring 16-15

ports

community 16-2

configuration guidelines 16-8

configuring host ports 16-12

configuring promiscuous ports 16-13

isolated 16-2

promiscuous 16-2

primary VLANs 16-1, 16-3

private VLANs

promiscuous ports 16-2

secondary VLANs 16-2

subdomains 16-1

traffic in 16-5

privileged EXEC mode 2-2

privilege levels

changing the default for lines 9-9

command switch 6-18

exiting 9-9

logging into 9-9

mapping on member switches 6-18

overview 9-2, 9-7

setting a command with 9-8

promiscuous ports

configuring 16-13

defined 16-2

protected ports 1-9, 26-5

protocol-dependent modules, EIGRP 38-36

Protocol-Independent Multicast Protocol

See PIM

provider edge devices 38-65

provisioning new members for a switch stack 5-8

proxy ARP

configuring 38-12

definition 38-10

with IP routing disabled 38-12

pruning, VTP

disabling

in VTP domain 14-14

on a port 13-23

enabling

in VTP domain 14-14

on a port 13-22

examples 14-5

overview 14-4

pruning-eligible list

changing 13-22

for VTP pruning 14-5

VLANs 14-14

PVST+

described 18-10

IEEE 802.1Q trunking interoperability 18-11

instances supported 18-10

Q

QoS

and MQC commands 36-1

auto-QoS

categorizing traffic 36-23

configuration and defaults display 36-32

configuration guidelines 36-27

described 36-22

disabling 36-29

displaying generated commands 36-29

displaying the initial configuration 36-32

effects on running configuration 36-27

egress queue defaults 36-23

enabling for VoIP 36-28

example configuration 36-30

ingress queue defaults 36-23

list of generated commands 36-24

basic model 36-4

classification

class maps, described 36-7

defined 36-4

DSCP transparency, described 36-42

flowchart 36-6

forwarding treatment 36-3

in frames and packets 36-3

IP ACLs, described 36-5, 36-7

QoS

MAC ACLs, described 36-5, 36-7

options for IP traffic 36-5

options for non-IP traffic 36-5

policy maps, described 36-7

trust DSCP, described 36-5

trusted CoS, described 36-5

trust IP precedence, described 36-5

class maps

configuring 36-49

displaying 36-81

configuration guidelines

auto-QoS 36-27

standard QoS 36-35

configuring

aggregate policers 36-61

auto-QoS 36-22

default port CoS value 36-40

DSCP maps 36-63

DSCP transparency 36-42

DSCP trust states bordering another domain 36-43

egress queue characteristics 36-73

ingress queue characteristics 36-69

IP extended ACLs 36-47

IP standard ACLs 36-46

MAC ACLs 36-48

policy maps, hierarchical 36-55

policy maps on physical ports 36-51

port trust states within the domain 36-38

trusted boundary 36-41

default auto configuration 36-23

default standard configuration 36-33

displaying statistics 36-81

DSCP transparency 36-42

QoS

egress queues

allocating buffer space 36-74

buffer allocation scheme, described 36-19

configuring shaped weights for SRR 36-78

configuring shared weights for SRR 36-79

described 36-4

displaying the threshold map 36-77

flowchart 36-18

mapping DSCP or CoS values 36-76

scheduling, described 36-4

setting WTD thresholds 36-74

WTD, described 36-21

enabling globally 36-37

flowcharts

classification 36-6

egress queueing and scheduling 36-18

ingress queueing and scheduling 36-15

policing and marking 36-10

implicit deny 36-7

ingress queues

allocating bandwidth 36-71

allocating buffer space 36-71

buffer and bandwidth allocation, described 36-17

configuring shared weights for SRR 36-71

configuring the priority queue 36-72

described 36-4

displaying the threshold map 36-70

flowchart 36-15

mapping DSCP or CoS values 36-70

priority queue, described 36-17

scheduling, described 36-4

setting WTD thresholds 36-70

WTD, described 36-17

IP phones

automatic classification and queueing 36-22

detection and trusted settings 36-22, 36-41

QoS

limiting bandwidth on egress interface 36-80

mapping tables

CoS-to-DSCP 36-63

displaying 36-81

DSCP-to-CoS 36-66

DSCP-to-DSCP-mutation 36-67

IP-precedence-to-DSCP 36-64

policed-DSCP 36-65

types of 36-12

marked-down actions 36-53, 36-58

marking, described 36-4, 36-8

overview 36-2

packet modification 36-21

policers

configuring 36-53, 36-58, 36-61

described 36-8

displaying 36-81

number of 36-36

types of 36-9

policies, attaching to an interface 36-8

policing

described 36-4, 36-8

token bucket algorithm 36-9

policy maps

characteristics of 36-51

displaying 36-82

hierarchical 36-8

hierarchical on SVIs 36-55

nonhierarchical on physical ports 36-51

QoS label, defined 36-4

queues

configuring egress characteristics 36-73

configuring ingress characteristics 36-69

high priority (expedite) 36-21, 36-79

location of 36-13

SRR, described 36-14

WTD, described 36-14

QoS

rewrites 36-21

support for 1-10

trust states

bordering another domain 36-43

described 36-5

trusted device 36-41

within the domain 36-38

quality of service

See QoS

queries, IGMP 24-4

query solicitation, IGMP 24-13

R

RADIUS

attributes

vendor-proprietary 9-30

vendor-specific 9-29

configuring

accounting 9-28

authentication 9-23

authorization 9-27

communication, global 9-21, 9-29

communication, per-server 9-20, 9-21

multiple UDP ports 9-21

default configuration 9-20

defining AAA server groups 9-25

displaying the configuration 9-31

identifying the server 9-20

in clusters 6-17

limiting the services to the user 9-27

method list, defined 9-20

operation of 9-19

overview 9-18

suggested network environments 9-18

support for 1-10

tracking services accessed by user 9-28

range

macro 11-19

of interfaces 11-17

rapid convergence 19-10

rapid per-VLAN spanning-tree plus

See rapid PVST+

rapid PVST+

described 18-10

IEEE 802.1Q trunking interoperability 18-11

instances supported 18-10

Rapid Spanning Tree Protocol

See RSTP

RARP 38-10

rcommand command 6-18

RCP

configuration files

downloading B-18

overview B-16

preparing the server B-17

uploading B-19

image files

deleting old image B-34

downloading B-32

preparing the server B-31

uploading B-34

reconfirmation interval, VMPS, changing 13-32

reconfirming dynamic VLAN membership 13-31

recovery procedures 45-1

redundancy

EtherChannel 37-3

HSRP 40-1

STP

backbone 18-9

multidrop backbone 20-5

path cost 13-26

port priority 13-24

redundant links and UplinkFast 20-15

redundant power system

See Cisco Redundant Power System 2300

reliable transport protocol, EIGRP 38-36

reloading software 3-17

Remote Authentication Dial-In User Service

See RADIUS

Remote Copy Protocol

See RCP

Remote Network Monitoring

See RMON

Remote SPAN

See RSPAN

remote SPAN 30-3

report suppression, IGMP

described 24-6

disabling 24-16, 25-11

requirements

cluster xliv

device manager xliv

Network Assistant xliv

resequencing ACL entries 34-15

resets, in BGP 38-50

resetting a UDLD-shutdown interface 29-6

restricted VLAN

configuring 10-34

described 10-13

using with IEEE 802.1x 10-13

restricting access

NTP services 7-8

overview 9-1

passwords and privilege levels 9-2

RADIUS 9-17

TACACS+ 9-10

retry count, VMPS, changing 13-32

reverse address resolution 38-9

Reverse Address Resolution Protocol

See RARP

RFC

1058, RIP 38-20

1112, IP multicast and IGMP 24-2

1157, SNMPv1 33-2

1163, BGP 38-43

1166, IP addresses 38-7

1253, OSPF 38-25

1267, BGP 38-43

1305, NTP 7-2

1587, NSSAs 38-25

1757, RMON 31-2

1771, BGP 38-43

1901, SNMPv2C 33-2

1902 to 1907, SNMPv2 33-2

2236, IP multicast and IGMP 24-2

2273-2275, SNMPv3 33-2

RIP

advertisements 38-20

authentication 38-23

configuring 38-21

default configuration 38-21

described 38-20

for IPv6 39-18

hop counts 38-20

split horizon 38-23

summary addresses 38-23

support for 1-11

RMON

default configuration 31-3

displaying status 31-6

enabling alarms and events 31-3

groups supported 31-2

overview 31-1

statistics

collecting group Ethernet 31-5

collecting group history 31-5

support for 1-13

root guard

described 20-10

enabling 20-18

support for 1-7

root switch

MSTP 19-17

STP 18-16

route calculation timers, OSPF 38-32

route dampening, BGP 38-62

routed packets, ACLs on 34-39

routed ports

configuring 38-5

defined 11-4

in switch clusters 6-9

IP addresses on 11-31, 38-5

route-map command 38-86

route maps

BGP 38-54

policy-based routing 38-84

router ACLs

defined 34-2

types of 34-4

route reflectors, BGP 38-61

router ID, OSPF 38-34

route selection, BGP 38-52

route summarization, OSPF 38-32

route targets, VPN 38-67

routing

default 38-3

dynamic 38-3

redistribution of information 38-80

static 38-3

routing domain confederation, BGP 38-61

Routing Information Protocol

See RIP

routing protocol administrative distances 38-79

RPS

See Cisco Redundant Power System 2300

RPS 2300

See Cisco Redundant Power System 2300

RSPAN 30-3

and stack changes 30-10

characteristics 30-9

configuration guidelines 30-16

default configuration 30-11

destination ports 30-8

displaying status 30-23

in a switch stack 30-2

interaction with other features 30-9

monitored ports 30-6

monitoring ports 30-8

overview 1-13, 30-1

received traffic 30-5

session limits 30-11

sessions

creating 30-17

defined 30-4

limiting source traffic to specific VLANs 30-22

specifying monitored ports 30-17

with ingress traffic enabled 30-20

source ports 30-6

transmitted traffic 30-6

VLAN-based 30-7

RSTP

active topology 19-10

BPDU

format 19-12

processing 19-13

designated port, defined 19-9

designated switch, defined 19-9

RSTP

interoperability with IEEE 802.1D

described 19-9

restarting migration process 19-26

topology changes 19-13

overview 19-9

port roles

described 19-9

synchronized 19-11

proposal-agreement handshake process 19-10

rapid convergence

cross-stack rapid convergence 19-11

described 19-10

edge ports and Port Fast 19-10

point-to-point links 19-10, 19-24

root ports 19-10

root port, defined 19-9

See also MSTP

running configuration, saving 3-11

S

SC (standby command switch) 6-11

scheduled reloads 3-17

SDM

described 8-1

switch stack consideration 5-10

templates

configuring 8-5

number of 8-1

SDM template

configuration guidelines 8-4

configuring 8-4

dual IPv4 and IPv6 8-2

types of 8-1

secondary VLANs 16-2

secure HTTP client

configuring 9-47

displaying 9-48

secure HTTP server

configuring 9-46

displaying 9-48

secure MAC addresses

and switch stacks 26-17

deleting 26-15

maximum number of 26-9

types of 26-8

secure ports

and switch stacks 26-17

configuring 26-7

secure remote connections 9-38

Secure Shell

See SSH

Secure Socket Layer

See SSL

security, port 26-7

security features 1-8

sequence numbers in log messages 32-8

server mode, VTP 14-3

service-provider network, MSTP and RSTP 19-1

service-provider networks

and customer VLANs 17-2

and IEEE 802.1Q tunneling 17-1

Layer 2 protocols across 17-8

Layer 2 protocol tunneling for EtherChannels 17-9

set-request operation 33-5

setup program

failed command switch replacement 45-11

replacing failed command switch 45-10

severity levels, defining in system messages 32-9

SFPs

monitoring status of 11-39, 45-15

numbering of 11-16

security and identification 45-14

status, displaying 45-15

shaped round robin

See SRR

show access-lists hw-summary command 34-22

show and more command output, filtering 2-10

show cdp traffic command 27-5

show cluster members command 6-18

show configuration command 11-30

show forward command 45-23

show interfaces command 11-23, 11-30

show l2protocol command 17-13, 17-15, 17-16

show lldp traffic command 28-7

show platform forward command 45-23

show running-config command

displaying ACLs 34-20, 34-21, 34-31, 34-34

interface description in 11-30

shutdown command on interfaces 11-40

shutdown threshold for Layer 2 protocol packets 17-11

Simple Network Management Protocol

See SNMP

small form-factor pluggable modules

See SFPs

Smartports macros

applying Cisco-default macros 12-6

applying global parameter values 12-5, 12-6

applying macros 12-5

applying parameter values 12-5, 12-7

configuration guidelines 12-3

creating 12-4

default configuration 12-2

defined 12-1

displaying 12-8

tracing 12-3

website 12-2

SNAP 27-1

SNMP

accessing MIB variables with 33-4

agent

described 33-4

disabling 33-8

SNMP

authentication level 33-11

community strings

configuring 33-8

for cluster switches 33-4

overview 33-4

configuration examples 33-16

default configuration 33-7

engine ID 33-7

groups 33-7, 33-10

host 33-7

ifIndex values 33-6

in-band management 1-6

in clusters 6-15

informs

and trap keyword 33-12

described 33-5

differences from traps 33-5

disabling 33-15

enabling 33-15

limiting access by TFTP servers 33-16

limiting system log messages to NMS 32-10

manager functions 1-5, 33-3

managing clusters with 6-19

MIBs

location of A-4

supported A-1

notifications 33-5

overview 33-1, 33-4

security levels 33-3

status, displaying 33-17

system contact and location 33-15

trap manager, configuring 33-14

SNMP

traps

described 33-3, 33-5

differences from informs 33-5

disabling 33-15

enabling 33-12

enabling MAC address notification 7-22

overview 33-1, 33-5

types of 33-12

users 33-7, 33-10

versions supported 33-2

SNMPv1 33-2

SNMPv2C 33-2

SNMPv3 33-2

snooping, IGMP 24-2

software compatibility

See stacks, switch

software images

location in flash B-21

recovery procedures 45-2

scheduling reloads 3-17

tar file format, described B-21

See also downloading and uploading

software images in mixed stacks

See the Cisco Software Activation and Compatibility Document

source addresses

in IPv4 ACLs 34-12

in IPv6 ACLs 35-6

source-and-destination-IP address based forwarding, EtherChannel 37-9

source-and-destination MAC address forwarding, EtherChannel 37-8

source-IP address based forwarding, EtherChannel 37-9

source-MAC address forwarding, EtherChannel 37-8

SPAN

and stack changes 30-10

configuration guidelines 30-11

default configuration 30-11

destination ports 30-8

displaying status 30-23

interaction with other features 30-9

monitored ports 30-6

monitoring ports 30-8

overview 1-13, 30-1

ports, restrictions 26-11

received traffic 30-5

session limits 30-11

sessions

configuring ingress forwarding 30-15, 30-21

creating 30-12

defined 30-4

limiting source traffic to specific VLANs 30-15

removing destination (monitoring) ports 30-13

specifying monitored ports 30-12

with ingress traffic enabled 30-14

source ports 30-6

transmitted traffic 30-6

VLAN-based 30-7

spanning tree and native VLANs 13-19

Spanning Tree Protocol

See STP

SPAN traffic 30-5

split horizon, RIP 38-23

SRR

configuring

shaped weights on egress queues 36-78

shared weights on egress queues 36-79

shared weights on ingress queues 36-71

described 36-14

shaped mode 36-14

shared mode 36-15

support for 1-11

SSH

configuring 9-39

cryptographic software image 9-37

described 1-6, 9-38

encryption methods 9-38

switch stack considerations 5-17, 9-38

user authentication methods, supported 9-39

SSL

configuration guidelines 9-45

configuring a secure HTTP client 9-47

configuring a secure HTTP server 9-46

cryptographic software image 9-42

described 9-42

monitoring 9-48

stack changes, effects on

802.1x port-based authentication 10-7

ACL configuration 34-7

CDP 27-2

cross-stack EtherChannel 37-13

EtherChannel 37-10

fallback bridging 44-3

HSRP 40-4

IGMP snooping 24-7

IP routing 38-4

IPv6 ACLs 35-4

IPv6 routing 39-8

MAC address tables 7-21

MSTP 19-8

multicast routing 42-9

MVR 24-18

port security 26-17

SDM template selection 8-3

SNMP 33-1

SPAN and RSPAN 30-10

STP 18-12

switch clusters 6-16

system message log 32-2

VLANs 13-6

VTP 14-6

stack master

bridge ID (MAC address) 5-6

defined 5-2

election 5-5

IPv6 39-8

re-election 5-5

See also stacks, switch

stack member

accessing CLI of specific member 5-24

configuring

member number 5-22

priority value 5-22

defined 5-2

displaying information of 5-24

IPv6 39-8

number 5-6

priority value 5-7

provisioning a new member 5-23

replacing 5-15

See also stacks, switch

stack member number 11-15

stack protocol version 5-11

stacks, switch

accessing CLI of specific member 5-24

assigning information

member number 5-22

priority value 5-22

provisioning a new member 5-23

auto-advise 5-12

auto-copy 5-12

auto-extract 5-12

auto-upgrade 5-12

benefits 1-2

bridge ID 5-6

Catalyst 3750-E-only 5-1

CDP considerations 27-2

compatibility, software 5-10

configuration file 5-15

configuration scenarios 5-18

stacks, switch

copying an image file from one member to another B-35

default configuration 5-20

description of 5-1

displaying information of 5-24

enabling persistent MAC address timer 5-20

hardware compatibility and SDM mismatch mode 5-10

HSRP considerations 40-4

in clusters 6-16

incompatible software and image upgrades 5-15, B-35

IPv6 on 39-7

MAC address considerations 7-21

MAC address of 5-20

management connectivity 5-16

managing 5-1

managing mixed

See Catalyst 3750-E and 3750 Switch Stacking Compatibility Guide

membership 5-3

merged 5-4

mixed

hardware 5-1

hardware and software 5-2

software 5-2

with Catalyst 3750-E and 3750 switches 5-1

mixed software images

See Cisco Software Activation and Compatibility Document

MSTP instances supported 18-10

multicast routing, stack master and member roles 42-9

offline configuration

described 5-8

effects of adding a provisioned switch 5-8

effects of removing a provisioned switch 5-10

stacks, switch

effects of replacing a provisioned switch 5-10

provisioned configuration, defined 5-8

provisioned switch, defined 5-8

provisioning a new member 5-23

partitioned 5-4, 45-9

provisioned switch

adding 5-8

removing 5-10

replacing 5-10

replacing a failed member 5-15

software compatibility 5-10

software image version 5-10

stack protocol version 5-11

STP

bridge ID 18-3

instances supported 18-10

root port selection 18-3

stack root switch election 18-3

system messages

hostnames in the display 32-1

remotely monitoring 32-2

system prompt consideration 7-14

system-wide configuration considerations 5-16

upgrading B-35

version-mismatch (VM) mode

automatic upgrades with auto-upgrade 5-12

described 5-11

examples 5-13

manual upgrades with auto-advise 5-12

upgrades with auto-extract 5-12

See also stack master and stack member

StackWise Plus technology, Cisco 1-3

See also stacks, switch

standby command switch

configuring

considerations 6-12

defined 6-2

priority 6-11

requirements 6-3

virtual IP address 6-12

See also cluster standby group and HSRP

standby group, cluster

See cluster standby group and HSRP

standby ip command 40-5

standby links 21-2

standby router 40-1

standby timers, HSRP 40-10

startup configuration

booting

manually 3-13

specific image 3-14

clearing B-20

configuration file

automatically downloading 3-12

specifying the filename 3-12

default boot configuration 3-12

stateless autoconfiguration 39-5

static access ports

assigning to VLAN 13-11

defined 11-3, 13-3

static addresses

See addresses

static IP routing 1-12

static MAC addressing 1-8

static routes

configuring 38-78

configuring for IPv6 39-16

static routing 38-3

static VLAN membership 13-2

statistics

802.1x 10-44

CDP 27-5

interface 11-38

IP multicast routing 42-52

LLDP 28-7

LLDP-MED 28-7

OSPF 38-35

QoS ingress and egress 36-81

RMON group Ethernet 31-5

RMON group history 31-5

SNMP input and output 33-17

VTP 14-16

sticky learning 26-8

storm control

configuring 26-3

described 26-1

disabling 26-5

displaying 26-18

support for 1-4

thresholds 26-1

STP

accelerating root port selection 20-4

BackboneFast

described 20-7

disabling 20-17

enabling 20-16

BPDU filtering

described 20-3

disabling 20-15

enabling 20-14

BPDU guard

described 20-2

disabling 20-14

enabling 20-13

STP

BPDU message exchange 18-3

configuration guidelines 18-13, 20-12

configuring

forward-delay time 18-23

hello time 18-22

maximum aging time 18-23

path cost 18-20

port priority 18-18

root switch 18-16

secondary root switch 18-18

spanning-tree mode 18-15

switch priority 18-21

transmit hold-count 18-24

counters, clearing 18-24

cross-stack UplinkFast

described 20-5

enabling 20-16

default configuration 18-13

default optional feature configuration 20-12

designated port, defined 18-4

designated switch, defined 18-4

detecting indirect link failures 20-8

disabling 18-16

displaying status 18-24

EtherChannel guard

described 20-10

disabling 20-17

enabling 20-17

extended system ID

effects on root switch 18-16

effects on the secondary root switch 18-18

overview 18-4

unexpected behavior 18-16

features supported 1-7

IEEE 802.1D and bridge ID 18-4

IEEE 802.1D and multicast addresses 18-9

IEEE 802.1t and VLAN identifier 18-5

inferior BPDU 18-3

STP

instances supported 18-10

interface state, blocking to forwarding 20-2

interface states

blocking 18-7

disabled 18-8

forwarding 18-6, 18-7

learning 18-7

listening 18-7

overview 18-5

interoperability and compatibility among modes 18-11

keepalive messages 18-2

Layer 2 protocol tunneling 17-8

limitations with IEEE 802.1Q trunks 18-11

load sharing

overview 13-24

using path costs 13-26

using port priorities 13-24

loop guard

described 20-11

enabling 20-18

modes supported 18-10

multicast addresses, effect of 18-9

optional features supported 1-7

overview 18-2

path costs 13-26, 13-27

Port Fast

described 20-2

enabling 20-12

port priorities 13-25

preventing root switch selection 20-10

protocols supported 18-10

redundant connectivity 18-9

root guard

described 20-10

enabling 20-18

root port, defined 18-3

root port selection on a switch stack 18-3

STP

root switch

configuring 18-16

effects of extended system ID 18-4, 18-16

election 18-3

unexpected behavior 18-16

shutdown Port Fast-enabled port 20-2

stack changes, effects of 18-12

status, displaying 18-24

superior BPDU 18-3

timers, described 18-22

UplinkFast

described 20-3

enabling 20-15

VLAN-bridge 18-11

stratum, NTP 7-2

stub areas, OSPF 38-31

stub routing, EIGRP 38-42

subdomains, private VLAN 16-1

subnet mask 38-7

subnet zero 38-7

success response, VMPS 13-28

summer time 7-13

SunNet Manager 1-5

supernet 38-8

SVIs

and IP unicast routing 38-5

and router ACLs 34-4

connecting VLANs 11-11

defined 11-5

routing between VLANs 13-2

switch clustering technology 6-1

See also clusters, switch

switch console port 1-6

Switch Database Management

See SDM

switched packets, ACLs on 34-38

Switched Port Analyzer

See SPAN

switched ports 11-2

switchport block multicast command 26-7

switchport block unicast command 26-7

switchport command 11-21

switchport mode dot1q-tunnel command 17-7

switchport protected command 26-6

switch priority

MSTP 19-22

STP 18-21

switch software features 1-1

switch virtual interface

See SVI

synchronization, BGP 38-48

syslog

See system message logging

system clock

configuring

daylight saving time 7-13

manually 7-11

summer time 7-13

time zones 7-12

displaying the time and date 7-12

overview 7-1

See also NTP

system message logging

default configuration 32-4

defining error message severity levels 32-9

disabling 32-4

displaying the configuration 32-14

enabling 32-5

facility keywords, described 32-14

level keywords, described 32-10

limiting messages 32-10

message format 32-2

overview 32-1

sequence numbers, enabling and disabling 32-8

setting the display destination device 32-5

stack changes, effects of 32-2

synchronizing log messages 32-6

system message logging

syslog facility 1-13

time stamps, enabling and disabling 32-8

UNIX syslog servers

configuring the daemon 32-12

configuring the logging facility 32-13

facilities supported 32-14

system MTU and IEEE 802.1Q tunneling 17-5

system name

default configuration 7-15

default setting 7-15

manual configuration 7-15

See also DNS

system prompt, default setting 7-14, 7-15

system resources, optimizing 8-1

T

TACACS+

accounting, defined 9-11

authentication, defined 9-11

authorization, defined 9-11

configuring

accounting 9-17

authentication key 9-13

authorization 9-16

login authentication 9-14

default configuration 9-13

displaying the configuration 9-17

identifying the server 9-13

in clusters 6-17

limiting the services to the user 9-16

operation of 9-12

overview 9-10

support for 1-10

tracking services accessed by user 9-17

tagged packets

IEEE 802.1Q 17-3

Layer 2 protocol 17-8

tar files

creating B-7

displaying the contents of B-7

extracting B-8

image file format B-21

TDR 1-13

Telnet

accessing management interfaces 2-11

number of connections 1-6

setting a password 9-6

templates, SDM 8-1

temporary self-signed certificate 9-43

Terminal Access Controller Access Control System Plus

See TACACS+

terminal lines, setting a password 9-6

TFTP

configuration files

downloading B-12

preparing the server B-11

uploading B-12

configuration files in base directory 3-6

configuring for autoconfiguration 3-6

image files

deleting B-25

downloading B-23

preparing the server B-23

uploading B-25

limiting access by servers 33-16

TFTP server 1-6

threshold, traffic level 26-2

time

See NTP and system clock

Time Domain Reflector

See TDR

time-range command 34-17

time ranges in ACLs 34-17

time stamps in log messages 32-8

time zones 7-12

TLVs

defined 28-2

LLDP 28-2

LLDP-MED 28-2

Token Ring VLANs

support for 13-6

VTP support 14-4

ToS 1-10

traceroute, Layer 2

and ARP 45-18

and CDP 45-17

broadcast traffic 45-17

described 45-17

IP addresses and subnets 45-18

MAC addresses and VLANs 45-17

multicast traffic 45-17

multiple devices on a port 45-18

unicast traffic 45-17

usage guidelines 45-17

traceroute command 45-19

See also IP traceroute

tracked lists

configuring 40-14

types 40-14

tracked objects

by Boolean expression 40-14

by threshold percentage 40-16

by threshold weight 40-15

tracking interface line-protocol state 40-13

tracking IP routing state 40-13

tracking objects 40-12

tracking process 40-12

traffic

blocking flooded 26-7

fragmented 34-5

fragmented IPv6 35-3

unfragmented 34-5

traffic policing 1-11

traffic suppression 26-1

transmit hold-count

see STP

transparent mode, VTP 14-3, 14-12

trap-door mechanism 3-2

traps

configuring MAC address notification 7-22

configuring managers 33-12

defined 33-3

enabling 7-22, 33-12

notification types 33-12

overview 33-1, 33-5

troubleshooting

connectivity problems 45-15, 45-17, 45-18

detecting unidirectional links 29-1

displaying crash information 45-25

PIMv1 and PIMv2 interoperability problems 42-25

setting packet forwarding 45-23

SFP security and identification 45-14

show forward command 45-23

with CiscoWorks 33-4

with debug commands 45-21

with ping 45-15

with system message logging 32-1

with traceroute 45-18

trunk failover

See link-state tracking

trunking encapsulation 1-8

trunk ports

configuring 13-20

defined 11-3, 13-3

encapsulation 13-20, 13-25, 13-27

trunks

allowed-VLAN list 13-21

configuring 13-20, 13-25, 13-27

ISL 13-16

load sharing

setting STP path costs 13-26

using STP port priorities 13-24, 13-25

native VLAN for untagged traffic 13-23

parallel 13-26

pruning-eligible list 13-22

to non-DTP device 13-17

trusted boundary for QoS 36-41

trusted port states

between QoS domains 36-43

classification options 36-5

ensuring port security for IP phones 36-41

support for 1-10

within a QoS domain 36-38

trustpoints, CA 9-42

tunneling

defined 17-1

IEEE 802.1Q 17-1

Layer 2 protocol 17-8

tunnel ports

described 11-4, 17-2

IEEE 802.1Q, configuring 17-7

incompatibilities with other features 17-6

twisted-pair Ethernet, detecting unidirectional links 29-1

type of service

See ToS

U

UDLD

configuration guidelines 29-4

default configuration 29-4

disabling

globally 29-5

on fiber-optic interfaces 29-5

per interface 29-6

echoing detection mechanism 29-3

enabling

globally 29-5

per interface 29-6

Layer 2 protocol tunneling 17-10

link-detection mechanism 29-1

neighbor database 29-2

overview 29-1

resetting an interface 29-6

status, displaying 29-7

support for 1-7

UDP, configuring 38-16

unauthorized ports with IEEE 802.1x 10-7

unicast MAC address filtering 1-6

and adding static addresses 7-26

and broadcast MAC addresses 7-25

and CPU packets 7-25

and multicast addresses 7-25

and router MAC addresses 7-25

configuration guidelines 7-25

described 7-25

unicast storm 26-1

unicast storm control command 26-4

unicast traffic, blocking 26-7

UniDirectional Link Detection protocol

See UDLD

universal software image

cryptographic 1-1

feature set

advanced IP services 1-2

IP base 1-1

IP services 1-2

noncryptographic 1-1

UNIX syslog servers

daemon configuration 32-12

facilities supported 32-14

message logging configuration 32-13

unrecognized Type-Length-Value (TLV) support 14-4

upgrading information

See release notes

upgrading software images

See downloading

UplinkFast

described 20-3

disabling 20-16

enabling 20-15

support for 1-7

uploading

configuration files

preparing B-11, B-14, B-17

reasons for B-9

using FTP B-15

using RCP B-19

using TFTP B-12

image files

preparing B-23, B-26, B-31

reasons for B-21

using FTP B-29

using RCP B-34

using TFTP B-25

User Datagram Protocol

See UDP

user EXEC mode 2-2

username-based authentication 9-6

V

version-dependent transparent mode 14-4

version-mismatch (VM) mode

automatic upgrades with auto-upgrade 5-12

described 5-11

displaying 5-11

manual upgrades with auto-advise 5-12

upgrades with auto-extract 5-12

virtual IP address

cluster standby group 6-12

command switch 6-12

Virtual Private Network

See VPN

virtual router 40-1, 40-2

vlan.dat file 13-5

VLAN 1, disabling on a trunk port 13-22

VLAN 1 minimization 13-21

VLAN ACLs

See VLAN maps

vlan-assignment response, VMPS 13-28

VLAN configuration

at bootup 13-8

saving 13-8

VLAN configuration mode 2-2, 13-7

VLAN database

and startup configuration file 13-8

and VTP 14-1

VLAN configuration saved in 13-7

VLANs saved in 13-4

vlan database command 13-7

vlan dot1q tag native command 17-5

VLAN filtering and SPAN 30-7

vlan global configuration command 13-7

VLAN ID, discovering 7-27

VLAN load balancing on flex links 21-2

configuration guidelines 21-5

VLAN management domain 14-2

VLAN Management Policy Server

See VMPS

VLAN map entries, order of 34-30

VLAN maps

applying 34-34

common uses for 34-34

configuration guidelines 34-30

configuring 34-29

creating 34-31

defined 34-2

denying access to a server example 34-35

denying and permitting packets 34-31

displaying 34-41

examples of ACLs and VLAN maps 34-32

removing 34-34

support for 1-9

wiring closet configuration example 34-35

VLAN membership

confirming 13-31

modes 13-3

VLAN Query Protocol

See VQP

VLANs

adding 13-9

adding to VLAN database 13-9

aging dynamic addresses 18-10

allowed on trunk 13-21

and spanning-tree instances 13-3, 13-6, 13-13

configuration guidelines, extended-range VLANs 13-13

configuration guidelines, normal-range VLANs 13-6

configuration options 13-7

configuring 13-1

configuring IDs 1006 to 4094 13-13

connecting through SVIs 11-11

creating in config-vlan mode 13-9

creating in VLAN configuration mode 13-10

customer numbering in service-provider networks 17-3

VLANs

default configuration 13-8

deleting 13-10

described 11-2, 13-1

displaying 13-16

extended-range 13-1, 13-12

features 1-8

illustrated 13-2

internal 13-13

in the switch stack 13-6

limiting source traffic with RSPAN 30-22

limiting source traffic with SPAN 30-15

modifying 13-9

multicast 24-18

native, configuring 13-23

normal-range 13-1, 13-4

number supported 1-8

parameters 13-5

port membership modes 13-3

static-access ports 13-11

STP and IEEE 802.1Q trunks 18-11

supported 13-3

Token Ring 13-6

traffic between 13-2

VLAN-bridge STP 18-11, 44-2

VTP modes 14-3

VLAN Trunking Protocol

See VTP

VLAN trunks 13-16

VMPS

administering 13-33

configuration example 13-33

configuration guidelines 13-29

default configuration 13-29

description 13-28

dynamic port membership

described 13-29

reconfirming 13-32

troubleshooting 13-33

VMPS

entering server address 13-30

mapping MAC addresses to VLANs 13-28

monitoring 13-33

reconfirmation interval, changing 13-32

reconfirming membership 13-31

retry count, changing 13-32

voice-over-IP 15-1

voice VLAN

Cisco 7960 phone, port connections 15-1

configuration guidelines 15-3

configuring IP phones for data traffic

override CoS of incoming frame 15-6

trust CoS priority of incoming frame 15-6

configuring ports for voice traffic in

802.1p priority tagged frames 15-5

802.1Q frames 15-5

connecting to an IP phone 15-4

default configuration 15-3

described 15-1

displaying 15-7

IP phone data traffic, described 15-2

IP phone voice traffic, described 15-2

VPN

configuring routing in 38-69

forwarding 38-67

in service provider networks 38-64

routes 38-65

VPN routing and forwarding table

See VRF

VQP 1-8, 13-28

VRF

defining 38-67

tables 38-64

VTP

adding a client to a domain 14-14

advertisements 13-19, 14-3

and extended-range VLANs 14-2

and normal-range VLANs 14-2

client mode, configuring 14-11

configuration

global configuration mode 14-7

guidelines 14-8

privileged EXEC mode 14-7

requirements 14-9

saving 14-7

VLAN configuration mode 14-8

configuration mode options 14-7

configuration requirements 14-9

configuration revision number

guideline 14-14

resetting 14-15

configuring

client mode 14-11

server mode 14-9

transparent mode 14-12

consistency checks 14-4

default configuration 14-7

described 14-1

disabling 14-12

domain names 14-8

domains 14-2

Layer 2 protocol tunneling 17-8

modes

client 14-3, 14-11

server 14-3, 14-9

transitions 14-3

transparent 14-3, 14-12

VTP

monitoring 14-16

passwords 14-8

pruning

disabling 14-14

enabling 14-14

examples 14-5

overview 14-4

support for 1-8

pruning-eligible list, changing 13-22

server mode, configuring 14-9

statistics 14-16

support for 1-8

Token Ring support 14-4

transparent mode, configuring 14-12

using 14-1

version, guidelines 14-9

Version 1 14-4

Version 2

configuration guidelines 14-9

disabling 14-13

enabling 14-13

overview 14-4

W

WCCP

authentication 41-3

configuration guidelines 41-5

default configuration 41-5

described 41-1

displaying 41-9

dynamic service groups 41-3

enabling 41-6

features unsupported 41-5

forwarding method 41-3

WCCP

Layer-2 header rewrite 41-3

MD5 security 41-3

message exchange 41-2

monitoring and maintaining 41-9

negotiation 41-3

packet redirection 41-3

packet-return method 41-3

redirecting traffic received from a client 41-6

setting the password 41-7

unsupported WCCPv2 features 41-5

web authentication

configuring10-41to 10-43

described 1-8, 10-20

fallback for IEEE 802.1x 10-42

Web Cache Communication Protocol

See WCCP

weighted tail drop

See WTD

weight thresholds in tracked lists 40-15

wizards 1-3

WTD

described 36-14

setting thresholds

egress queue-sets 36-74

ingress queues 36-70

support for 1-11

X

Xmodem protocol 45-2