Catalyst 2960 Switch Software Configuration Guide, 12.2(25)SEE
Index
Downloads: This chapterpdf (PDF - 1.28MB) The complete bookPDF (PDF - 8.48MB) | Feedback

Index

Table Of Contents

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

Index

A

abbreviating commands 2-4

AC (command switch) 5-9

access-class command 28-16

access control entries

See ACEs

access-denied response, VMPS 12-24

access groups, applying IPv4 ACLs to interfaces 28-17

accessing

clusters, switch 5-13

command switches 5-11

member switches 5-13

switch clusters 5-13

access lists

See ACLs

access ports

in switch clusters 5-8

access ports, defined 10-2

accounting

with 802.1x 9-28

with IEEE 802.1x 9-9

with RADIUS 8-28

with TACACS+ 8-11, 8-17

ACEs

and QoS 29-7

defined 28-2

Ethernet 28-2

IP 28-2

ACLs

ACEs 28-2

any keyword 28-9

applying

time ranges to 28-14

to an interface 28-16

to QoS 29-7

classifying traffic for QoS 29-40

comments in 28-15

compiling 28-17

defined 28-1, 28-5

examples of 28-17, 29-40

extended IP

configuring for QoS classification 29-41

extended IPv4

creating 28-8

matching criteria 28-5

hardware and software handling 28-17

host keyword 28-10

IP

creating 28-5

fragments and QoS guidelines 29-31

implicit deny 28-7, 28-11, 28-13

implicit masks 28-7

matching criteria 28-5

undefined 28-17

IPv4

applying to interfaces 28-16

creating 28-5

matching criteria 28-5

named 28-12

numbers 28-6

IPv4 (continued)

terminal lines, setting on 28-16

unsupported features 28-4

MAC extended 28-19, 29-42

matching 28-5, 28-17

monitoring 28-22

named, IPv4 28-12

number per QoS class map 29-31

QoS 29-7, 29-40

resequencing entries 28-12

standard IP, configuring for QoS classification 29-40

standard IPv4

creating 28-7

matching criteria 28-5

support for 1-8

support in hardware 28-17

time ranges 28-14

unsupported features, IPv4 28-4

active links 18-1

address aliasing 20-2

addresses

displaying the MAC address table 6-26

dynamic

accelerated aging 15-8

changing the aging time 6-21

default aging 15-8

defined 6-19

learning 6-20

removing 6-21

MAC, discovering 6-26

multicast, STP address management 15-8

static

adding and removing 6-24

defined 6-19

address resolution 6-26

Address Resolution Protocol

See ARP

advertisements

CDP 22-1

VTP 12-16, 13-3

aggregated ports

See EtherChannel

aggregate policers 29-48

aggregate policing 1-9

aging, accelerating 15-8

aging time

accelerated

for MSTP 16-23

for STP 15-8, 15-21

MAC address table 6-21

maximum

for MSTP 16-23, 16-24

for STP 15-21, 15-22

alarms, RMON 25-3

allowed-VLAN list 12-18

ARP

defined 1-4, 6-26

table

address resolution 6-26

managing 6-26

attributes, RADIUS

vendor-proprietary 8-30

vendor-specific 8-29

audience xliii

authentication

local mode with AAA 8-32

NTP associations 6-4

RADIUS

key 8-21

login 8-23

TACACS+

defined 8-11

key 8-13

login 8-14

See also port-based authentication

authentication failed VLAN

See restricted VLAN

authoritative time source, described 6-2

authorization

with RADIUS 8-27

with TACACS+ 8-11, 8-16

authorized ports with IEEE 802.1x 9-7

autoconfiguration 3-3

automatic discovery

considerations

beyond a noncandidate device 5-7

brand new switches 5-8

connectivity 5-4

different VLANs 5-6

management VLANs 5-7

non-CDP-capable devices 5-6

noncluster-capable devices 5-6

in switch clusters 5-4

See also CDP

automatic QoS

See QoS

automatic recovery, clusters 5-9

See also HSRP

auto-MDIX

configuring 10-16

described 10-15

autonegotiation

duplex mode 1-2

interface configuration guidelines 10-12

mismatches 31-11

autosensing, port speed 1-2

auxiliary VLAN

See voice VLAN

availability, features 1-5

B

BackboneFast

described 17-5

disabling 17-14

enabling 17-13

support for 1-5

backup interfaces

See Flex Links

backup links 18-1

banners

configuring

login 6-19

message-of-the-day login 6-18

default configuration 6-17

when displayed 6-17

binding database

DHCP snooping

See DHCP snooping binding database

bindings

DHCP snooping database 19-5

binding table, DHCP snooping

See DHCP snooping binding database

blocking packets 21-6

booting

boot loader, function of 3-2

boot process 3-1

manually 3-13

specific image 3-13

boot loader

accessing 3-14

described 3-2

environment variables 3-14

prompt 3-14

trap-door mechanism 3-2

BPDU

error-disabled state 17-2

filtering 17-3

RSTP format 16-12

BPDU filtering

described 17-3

disabling 17-12

enabling 17-12

support for 1-6

BPDU guard

described 17-2

disabling 17-11

enabling 17-11

support for 1-6

bridge protocol data unit

See BPDU

broadcast storm-control command 21-4

broadcast storms 21-1

C

cables, monitoring for unidirectional links 24-1

candidate switch

automatic discovery 5-4

defined 5-3

requirements 5-3

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

CA trustpoint

configuring 8-40

defined 8-38

caution, described xliv

CDP

and trusted boundary 29-36

automatic discovery in switch clusters 5-4

configuring 22-2

default configuration 22-2

described 22-1

disabling for routing device22-3to 22-4

enabling and disabling

on an interface 22-4

on a switch 22-3

monitoring 22-4

CDP (continued)

overview 22-1

support for 1-4

transmission timer and holdtime, setting 22-2

updates 22-2

CGMP

as IGMP snooping learning method 20-8

joining multicast group 20-3

CipherSuites 8-39

Cisco 7960 IP Phone 14-1

Cisco Discovery Protocol

See CDP

Cisco Intelligence Engine 2100 Series Configuration Registrar

See IE2100

Cisco IOS File System

See IFS

Cisco Network Assistant

See Network Assistant

CiscoWorks 2000 1-4, 27-4

CIST regional root

See MSTP

CIST root

See MSTP

class maps for QoS

configuring 29-43

described 29-7

displaying 29-68

class of service

See CoS

clearing interfaces 10-20

CLI

abbreviating commands 2-4

command modes 2-1

configuration logging 2-5

described 1-4

CLI (continued)

editing features

enabling and disabling 2-7

keystroke editing 2-7

wrapped lines 2-9

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 5-15

no and default forms of commands 2-4

client mode, VTP 13-3

clock

See system clock

cluster requirements xlv

clusters, switch

accessing 5-13

automatic discovery 5-4

automatic recovery 5-9

benefits 1-1

compatibility 5-4

described 5-1

LRE profile considerations 5-15

managing

through CLI 5-15

through SNMP 5-16

planning 5-4

planning considerations

automatic discovery 5-4

automatic recovery 5-9

CLI 5-15

host names 5-13

IP addresses 5-13

LRE profiles 5-15

passwords 5-14

clusters, switch (continued)

planning considerations (continued)

RADIUS 5-15

SNMP 5-14, 5-16

TACACS+ 5-15

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

cluster standby group

automatic recovery 5-12

considerations 5-11

defined 5-2

requirements 5-3

virtual IP address 5-11

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

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 8-8

command switch

accessing 5-11

active (AC) 5-9

configuration conflicts 31-11

command switch (continued)

defined 5-2

passive (PC) 5-9

password privilege levels 5-15

priority 5-9

recovery

from command-switch failure 5-9, 31-7

from lost member connectivity 31-11

redundant 5-9

replacing

with another switch 31-10

with cluster member 31-8

requirements 5-3

standby (SC) 5-9

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

community strings

configuring 5-14, 27-8

for cluster switches 27-4

in clusters 5-14

overview 27-4

SNMP 5-14

compatibility, feature 21-11

config.text 3-12

configurable leave timer, IGMP 20-5

configuration, initial

defaults 1-10

Express Setup 1-2

See also getting started guide and hardware installation guide

configuration conflicts, recovering from lost member connectivity 31-11

configuration examples, network 1-12

configuration files

clearing the startup configuration B-18

creating using a text editor B-9

default name 3-12

deleting a stored configuration B-18

described B-8

configuration files (continued)

downloading

automatically 3-12

preparing B-10, B-12, B-15

reasons for B-8

using FTP B-13

using RCP B-16

using TFTP B-10

guidelines for creating and using B-8

invalid combinations when copying B-5

limiting TFTP server access 27-16

obtaining with DHCP 3-7

password recovery disable considerations 8-5

specifying the filename 3-12

system contact and location information 27-15

types and location B-9

uploading

preparing B-10, B-12, B-15

reasons for B-8

using FTP B-14

using RCP B-17

using TFTP B-11

configuration logging 2-5

configuration settings, saving 3-10

configure terminal command 10-6

config-vlan mode 2-2, 12-6

conflicts, configuration 31-11

connections, secure remote 8-33

connectivity problems 31-12, 31-14, 31-15

consistency checks in VTP Version 2 13-4

console port, connecting to 2-10

conventions

command xliv

for examples xliv

publication xliv

text xliv

corrupted software, recovery steps with Xmodem 31-2

CoS

in Layer 2 frames 29-2

override priority 14-6

trust priority 14-6

CoS input queue threshold map for QoS 29-15

CoS output queue threshold map for QoS 29-18

CoS-to-DSCP map for QoS 29-51

counters, clearing interface 10-20

crashinfo file 31-21

critical authentication, IEEE 802.1x 9-31

cryptographic software image

SSH 8-33

SSL 8-37

CWDM SFPs 1-17

D

daylight saving time 6-13

debugging

enabling all system diagnostics 31-19

enabling for a specific feature 31-18

redirecting error message output 31-19

using commands 31-18

default commands 2-4

default configuration

802.1x 9-18

auto-QoS 29-20

banners 6-17

booting 3-12

CDP 22-2

DHCP 19-7

DHCP option 82 19-7

DHCP snooping 19-7

DHCP snooping binding database 19-7

DNS 6-16

EtherChannel 30-8

Ethernet interfaces 10-10

Flex Links 18-4

IGMP filtering 20-24

default configuration (continued)

IGMP snooping 20-6

IGMP throttling 20-24

initial switch information 3-3

Layer 2 interfaces 10-10

MAC address table 6-21

MAC address-table move update 18-4

MSTP 16-14

MVR 20-19

NTP 6-4

optional spanning-tree configuration 17-9

password and privilege level 8-2

RADIUS 8-20

RMON 25-3

RSPAN 23-9

SDM template 7-2

SNMP 27-7

SPAN 23-9

SSL 8-39

standard QoS 29-29

STP 15-11

system message logging 26-3

system name and prompt 6-15

TACACS+ 8-13

UDLD 24-4

VLAN, Layer 2 Ethernet interfaces 12-16

VLANs 12-7

VMPS 12-25

voice VLAN 14-3

VTP 13-6

default gateway 3-10

deleting VLANs 12-9

denial-of-service attack 21-1

description command 10-16

designing your network, examples 1-12

destination addresses, in IPv4 ACLs 28-9

destination-IP address-based forwarding, EtherChannel 30-7

destination-MAC address forwarding, EtherChannel 30-6

detecting indirect link failures, STP 17-5

device B-18

device discovery protocol 22-1

device manager

benefits 1-1

described 1-2, 1-4

in-band management 1-5

requirements xliv

upgrading a switch B-18

DHCP

Cisco IOS server database

configuring 19-11

enabling

relay agent 19-9

DHCP-based autoconfiguration

client request message exchange 3-4

configuring

client side 3-3

DNS 3-6

relay device 3-6

server side 3-5

TFTP server 3-5

example 3-8

lease options

for IP address information 3-5

for receiving the configuration file 3-5

overview 3-3

relationship to BOOTP 3-3

relay support 1-4

support for 1-4

DHCP binding database

See DHCP snooping binding database

DHCP binding table

See DHCP snooping binding database

DHCP option 82

circuit ID suboption 19-5

configuration guidelines 19-7

default configuration 19-7

displaying 19-12

DHCP option 82 (continued)

overview 19-3

packet format, suboption

circuit ID 19-5

remote ID 19-5

remote ID suboption 19-5

DHCP snooping

accepting untrusted packets form edge switch 19-3, 19-10

binding database

See DHCP snooping binding database

configuration guidelines 19-7

default configuration 19-7

displaying binding tables 19-12

message exchange process 19-4

option 82 data insertion 19-3

trusted interface 19-2

untrusted interface 19-2

untrusted messages 19-2

DHCP snooping binding database

adding bindings 19-11

binding entries, displaying 19-12

binding file

format 19-6

location 19-5

bindings 19-5

clearing agent statistics 19-12

configuration guidelines 19-9

configuring 19-11

default configuration 19-7

deleting

binding file 19-12

bindings 19-12

database agent 19-12

described 19-5

displaying 19-12

displaying status and statistics 19-12

enabling 19-11

entry 19-5

DHCP snooping binding database (continued)

renewing database 19-12

resetting

delay value 19-12

timeout value 19-12

DHCP snooping binding table

See DHCP snooping binding database

Differentiated Services architecture, QoS 29-2

Differentiated Services Code Point 29-2

directed unicast requests 1-4

directories

changing B-3

creating and removing B-4

displaying the working B-3

discovery, clusters

See automatic discovery

DNS

and DHCP-based autoconfiguration 3-6

default configuration 6-16

displaying the configuration 6-17

overview 6-15

setting up 6-16

support for 1-4

documentation, related xliv

document conventions xliv

domain names

DNS 6-15

VTP 13-8

Domain Name System

See DNS

downloading

configuration files

preparing B-10, B-12, B-15

reasons for B-8

using FTP B-13

using RCP B-16

using TFTP B-10

downloading (continued)

image files

deleting old image B-23

preparing B-21, B-25, B-29

reasons for B-19

using CMS 1-2

using FTP B-26

using HTTP 1-2, B-18

using RCP B-30

using TFTP B-22

using the device manager or Network Assistant B-18

DSCP 1-8, 29-2

DSCP input queue threshold map for QoS 29-15

DSCP output queue threshold map for QoS 29-18

DSCP-to-CoS map for QoS 29-54

DSCP-to-DSCP-mutation map for QoS 29-55

DSCP transparency 29-36

DTP 1-7, 12-14

dual-purpose uplinks

defined 10-4

setting the type 10-12

dynamic access ports

characteristics 12-3

configuring 12-26

defined 10-3

dynamic addresses

See addresses

dynamic auto trunking mode 12-15

dynamic desirable trunking mode 12-15

Dynamic Host Configuration Protocol

See DHCP-based autoconfiguration

dynamic port VLAN membership

described 12-24

reconfirming 12-27

troubleshooting 12-29

types of connections 12-26

Dynamic Trunking Protocol

See DTP

E

editing features

enabling and disabling 2-7

keystrokes used 2-7

wrapped lines 2-9

enable password 8-3

enable secret password 8-3

encryption, CipherSuite 8-39

encryption for passwords 8-3

environment variables, function of 3-15

error messages during command entry 2-5

EtherChannel

automatic creation of 30-3, 30-5

channel groups

binding physical and logical interfaces 30-3

numbering of 30-3

configuration guidelines 30-9

configuring Layer 2 interfaces 30-10

default configuration 30-8

described 30-2

displaying status 30-16

forwarding methods 30-6, 30-12

IEEE 802.3ad, described 30-5

interaction

with STP 30-9

with VLANs 30-9

LACP

described 30-5

displaying status 30-16

hot-standby ports 30-14

interaction with other features 30-5

modes 30-5

port priority 30-15

system priority 30-15

load balancing 30-6, 30-12

EtherChannel (continued)

PAgP

aggregate-port learners 30-13

compatibility with Catalyst 1900 30-13

described 30-3

displaying status 30-16

interaction with other features 30-4

learn method and priority configuration 30-13

modes 30-4

support for 1-3

port-channel interfaces

described 30-3

numbering of 30-3

port groups 10-4

support for 1-3

EtherChannel guard

described 17-7

disabling 17-14

enabling 17-14

Ethernet VLANs

adding 12-8

defaults and ranges 12-7

modifying 12-8

events, RMON 25-3

examples

conventions for xliv

network configuration 1-12

expedite queue for QoS 29-66

Express Setup 1-2

See also getting started guide

extended crashinfo file 31-21

extended-range VLANs

configuration guidelines 12-12

configuring 12-11

creating 12-12

defined 12-1

extended system ID

MSTP 16-17

STP 15-4, 15-14

Extensible Authentication Protocol over LAN 9-1

F

features, incompatible 21-11

fiber-optic, detecting unidirectional links 24-1

files

basic crashinfo

description 31-21

location 31-21

copying B-4

crashinfo

description 31-21

deleting B-5

displaying the contents of B-7

extended crashinfo

description 31-22

location 31-22

tar

creating B-5

displaying the contents of B-6

extracting B-7

image file format B-20

file system

displaying available file systems B-2

displaying file information B-3

local file system names B-1

network file system names B-4

setting the default B-3

filtering

non-IP traffic 28-19

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 18-4

configuring 18-5

default configuration 18-4

description 18-1

monitoring 18-8

flooded traffic, blocking 21-7

flow-based packet classification 1-8

flowcharts

QoS classification 29-6

QoS egress queueing and scheduling 29-16

QoS ingress queueing and scheduling 29-14

QoS policing and marking 29-10

flowcontrol

configuring 10-15

described 10-14

forward-delay time

MSTP 16-23

STP 15-21

FTP

accessing MIB files A-4

configuration files

downloading B-13

overview B-12

preparing the server B-12

uploading B-14

image files

deleting old image B-28

downloading B-26

preparing the server B-25

uploading B-28

G

get-bulk-request operation 27-3

get-next-request operation 27-3, 27-5

get-request operation 27-3, 27-5

get-response operation 27-3

global configuration mode 2-2

global leave, IGMP 20-12

guest VLAN and 802.1x 9-11

guide

audience xliii

purpose of xliii

guide mode 1-2

GUIs

See device manager and Network Assistant

H

hello time

MSTP 16-22

STP 15-20

help, for the command line 2-3

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 26-9

host names

in clusters 5-13

hosts, limit on dynamic ports 12-29

HP OpenView 1-4

HSRP

automatic cluster recovery 5-12

cluster standby group considerations 5-11

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

HTTP over SSL

see HTTPS

HTTPS 8-37

configuring 8-41

self-signed certificate 8-38

HTTP secure server 8-37

I

ICMP

time-exceeded messages 31-16

traceroute and 31-16

ICMP ping

executing 31-13

overview 31-13

IDS appliances

and ingress RSPAN 23-20

and ingress SPAN 23-13

IEEE 802.1D

See STP

IEEE 802.1p 14-1

IEEE 802.1Q

and trunk ports 10-3

configuration limitations 12-15

encapsulation 12-14

native VLAN for untagged traffic 12-19

IEEE 802.1s

See MSTP

IEEE 802.1w

See RSTP

IEEE 802.1x

See port-based authentication

IEEE 802.3ad

See EtherChannel

IEEE 802.3x flow control 10-14

ifIndex values, SNMP 27-6

IFS 1-5

IGMP

configurable leave timer

described 20-5

enabling 20-11

IGMP (continued)

flooded multicast traffic

controlling the length of time 20-12

disabling on an interface 20-13

global leave 20-12

query solicitation 20-12

recovering from flood mode 20-12

joining multicast group 20-3

join messages 20-3

leave processing, enabling 20-10

leaving multicast group 20-5

queries 20-4

report suppression

described 20-6

disabling 20-15

supported versions 20-2

support for 1-3

IGMP filtering

configuring 20-24

default configuration 20-24

described 20-23

monitoring 20-28

support for 1-3

IGMP groups

configuring filtering 20-27

setting the maximum number 20-26

IGMP Immediate Leave

configuration guidelines 20-11

described 20-5

enabling 20-10

IGMP profile

applying 20-25

configuration mode 20-24

configuring 20-25

IGMP snooping

and address aliasing 20-2

configuring 20-6

default configuration 20-6

definition 20-1

IGMP snooping (continued)

enabling and disabling 20-7

global configuration 20-7

Immediate Leave 20-5

method 20-8

monitoring 20-15

querier

configuration guidelines 20-14

configuring 20-14

supported versions 20-2

support for 1-3

VLAN configuration 20-7

IGMP throttling

configuring 20-27

default configuration 20-24

described 20-24

displaying action 20-28

Immediate Leave, IGMP 20-5

inaccessible authentication bypass 9-13

initial configuration

defaults 1-10

Express Setup 1-2

See also getting started guide and hardware installation guide

interface

number 10-5

range macros 10-8

interface command10-5to 10-6

interface configuration mode 2-3

interfaces

auto-MDIX, configuring 10-15

configuration guidelines

duplex and speed 10-11

configuring

procedure 10-6

counters, clearing 10-20

default configuration 10-10

described 10-16

descriptive name, adding 10-16

interfaces (continued)

displaying information about 10-19

flow control 10-14

management 1-4

monitoring 10-19

naming 10-16

physical, identifying 10-5

range of 10-6

restarting 10-20

shutting down 10-20

speed and duplex, configuring 10-13

status 10-19

supported 10-5

types of 10-1

interfaces range macro command 10-8

interface types 10-5

Intrusion Detection System

See IDS appliances

IP ACLs

for QoS classification 29-7

implicit deny 28-7, 28-11

implicit masks 28-7

named 28-12

undefined 28-17

IP addresses

candidate or member 5-3, 5-13

cluster access 5-2

command switch 5-3, 5-11, 5-13

discovering 6-26

redundant clusters 5-11

standby command switch 5-11, 5-13

See also IP information

ip igmp profile command 20-24

IP information

assigned

manually 3-9

through DHCP-based autoconfiguration 3-3

default configuration 3-3

IP phones

and QoS 14-1

automatic classification and queueing 29-19

configuring 14-4

ensuring port security with QoS 29-35

trusted boundary for QoS 29-35

IP precedence 29-2

IP-precedence-to-DSCP map for QoS 29-52

IP protocols in ACLs 28-9

IP traceroute

executing 31-16

overview 31-15

IPv4 ACLs

applying to interfaces 28-16

extended, creating 28-8

named 28-12

standard, creating 28-7

J

join messages, IGMP 20-3

L

LACP

See EtherChannel

Layer 2 frames, classification with CoS 29-2

Layer 2 interfaces, default configuration 10-10

Layer 2 traceroute

and ARP 31-15

and CDP 31-14

broadcast traffic 31-14

described 31-14

IP addresses and subnets 31-15

MAC addresses and VLANs 31-15

multicast traffic 31-15

multiple devices on a port 31-15

Layer 2 traceroute (continued)

unicast traffic 31-14

usage guidelines 31-14

Layer 3 packets, classification methods 29-2

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 16-8

link redundancy

See Flex Links

links, unidirectional 24-1

link-state tracking

configuring 30-19

described 30-17

local SPAN 23-2

login authentication

with RADIUS 8-23

with TACACS+ 8-14

login banners 6-17

log messages

See system message logging

Long-Reach Ethernet (LRE) technology 1-13

loop guard

described 17-9

enabling 17-15

support for 1-7

LRE profiles, considerations in switch clusters 5-15

M

MAC addresses

aging time 6-21

and VLAN association 6-20

building the address table 6-20

default configuration 6-21

discovering 6-26

displaying 6-26

dynamic

learning 6-20

removing 6-21

in ACLs 28-19

static

adding 6-24

allowing 6-25

characteristics of 6-24

dropping 6-25

removing 6-24

MAC address notification, support for 1-9

MAC address-table move update

configuration guidelines 18-4

configuring 18-6

default configuration 18-4

description 18-2

monitoring 18-8

MAC address-to-VLAN mapping 12-24

MAC extended access lists

applying to Layer 2 interfaces 28-21

configuring for QoS 29-42

creating 28-19

defined 28-19

for QoS classification 29-5

macros

See Smartports macros

magic packet 9-15

manageability features 1-4

management access

in-band

browser session 1-5

CLI session 1-5

device manager 1-5

SNMP 1-5

out-of-band console port connection 1-5

management options

CLI 2-1

clustering 1-2

CNS 4-1

Network Assistant 1-2

overview 1-4

management VLAN

considerations in switch clusters 5-7

discovery through different management VLANs 5-7

mapping tables for QoS

configuring

CoS-to-DSCP 29-51

DSCP 29-50

DSCP-to-CoS 29-54

DSCP-to-DSCP-mutation 29-55

IP-precedence-to-DSCP 29-52

policed-DSCP 29-53

described 29-11

marking

action in policy map 29-45

action with aggregate policers 29-48

described 29-4, 29-8

matching, IPv4 ACLs 28-5

maximum aging time

MSTP 16-23

STP 15-21

maximum hop count, MSTP 16-24

membership mode, VLAN port 12-3

member switch

automatic discovery 5-4

defined 5-2

managing 5-15

member switch (continued)

passwords 5-13

recovering from lost connectivity 31-11

requirements 5-3

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

messages, to users through banners 6-17

MIBs

accessing files with FTP A-4

location of files A-4

overview 27-1

SNMP interaction with 27-4

supported A-1

mirroring traffic for analysis 23-1

mismatches, autonegotiation 31-11

module number 10-5

monitoring

access groups 28-22

cables for unidirectional links 24-1

CDP 22-4

features 1-9

Flex Links 18-8

IGMP

filters 20-28

snooping 20-15

interfaces 10-19

IPv4 ACL configuration 28-22

MAC address-table move update 18-8

multicast router interfaces 20-16

MVR 20-23

network traffic for analysis with probe 23-2

port

blocking 21-16

protection 21-16

SFP status 10-19, 31-12

speed and duplex mode 10-14

traffic flowing among switches 25-1

traffic suppression 21-16

VLANs 12-13

monitoring (continued)

VMPS 12-28

VTP 13-16

MSTP

boundary ports

configuration guidelines 16-15

described 16-6

BPDU filtering

described 17-3

enabling 17-12

BPDU guard

described 17-2

enabling 17-11

CIST, described 16-3

CIST regional root 16-3

CIST root 16-5

configuration guidelines 16-15, 17-10

configuring

forward-delay time 16-23

hello time 16-22

link type for rapid convergence 16-24

maximum aging time 16-23

maximum hop count 16-24

MST region 16-16

neighbor type 16-25

path cost 16-20

port priority 16-19

root switch 16-17

secondary root switch 16-18

switch priority 16-21

CST

defined 16-3

operations between regions 16-4

default configuration 16-14

default optional feature configuration 17-9

displaying status 16-26

enabling the mode 16-16

MSTP (continued)

EtherChannel guard

described 17-7

enabling 17-14

extended system ID

effects on root switch 16-17

effects on secondary root switch 16-18

unexpected behavior 16-17

IEEE 802.1s

implementation 16-6

port role naming change 16-7

terminology 16-5

instances supported 15-9

interface state, blocking to forwarding 17-2

interoperability and compatibility among modes 15-10

interoperability with IEEE 802.1D

described 16-8

restarting migration process 16-25

IST

defined 16-3

master 16-3

operations within a region 16-3

loop guard

described 17-9

enabling 17-15

mapping VLANs to MST instance 16-16

MST region

CIST 16-3

configuring 16-16

described 16-2

hop-count mechanism 16-5

IST 16-3

supported spanning-tree instances 16-2

optional features supported 1-5

overview 16-2

Port Fast

described 17-2

enabling 17-10

preventing root switch selection 17-8

MSTP (continued)

root guard

described 17-8

enabling 17-15

root switch

configuring 16-17

effects of extended system ID 16-17

unexpected behavior 16-17

shutdown Port Fast-enabled port 17-2

status, displaying 16-26

multicast groups

Immediate Leave 20-5

joining 20-3

leaving 20-5

static joins 20-10

multicast router interfaces, monitoring 20-16

multicast router ports, adding 20-9

multicast storm 21-1

multicast storm-control command 21-4

multicast television application 20-18

multicast VLAN 20-17

Multicast VLAN Registration

See MVR

MVR

and address aliasing 20-20

and IGMPv3 20-20

configuration guidelines 20-20

configuring interfaces 20-21

default configuration 20-19

described 20-17

example application 20-18

modes 20-21

monitoring 20-23

multicast television application 20-18

setting global parameters 20-20

support for 1-3

N

NAC

critical authentication 9-13, 9-31

IEEE 802.1x authentication using a RADIUS server 9-35

IEEE 802.1x validation using RADIUS server 9-35

inaccessible authentication bypass 9-31

Layer 2 IEEE 802.1x validation 1-8, 9-35

Layer 2 IEEE802.1x validation 9-17

named IPv4 ACLs 28-12

NameSpace Mapper

See NSM

native VLAN

configuring 12-19

default 12-19

Network Admission Control

See NAC

Network Assistant

benefits 1-1

described 1-4

downloading image files 1-2

guide mode 1-2

management options 1-2

requirements xliv

upgrading a switch B-18

wizards 1-2

network configuration examples

increasing network performance 1-12

long-distance, high-bandwidth transport 1-17

providing network services 1-13

server aggregation and Linux server cluster 1-15

small to medium-sized network 1-16

network design

performance 1-13

services 1-13

network management

CDP 22-1

RMON 25-1

SNMP 27-1

Network Time Protocol

See NTP

no commands 2-4

nonhierarchical policy maps

configuring 29-45

described 29-8

non-IP traffic filtering 28-19

nontrunking mode 12-15

normal-range VLANs 12-4

configuration guidelines 12-5

configuration modes 12-6

configuring 12-4

defined 12-1

note, described xliv

NSM 4-3

NTP

associations

authenticating 6-4

defined 6-2

enabling broadcast messages 6-6

peer 6-5

server 6-5

default configuration 6-4

displaying the configuration 6-11

overview 6-2

restricting access

creating an access group 6-8

disabling NTP services per interface 6-10

source IP address, configuring 6-10

stratum 6-2

support for 1-5

synchronizing devices 6-5

time

services 6-2

synchronizing 6-2

O

optimizing system resources 7-1

options, management 1-4

out-of-profile markdown 1-9

P

packet modification, with QoS 29-18

PAgP

See EtherChannel

passwords

default configuration 8-2

disabling recovery of 8-5

encrypting 8-3

for security 1-7

in clusters 5-14

overview 8-1

recovery of 31-3

setting

enable 8-3

enable secret 8-3

Telnet 8-6

with usernames 8-6

VTP domain 13-8

path cost

MSTP 16-20

STP 15-18

PC (passive command switch) 5-9

performance, network design 1-12

performance features 1-2

persistent self-signed certificate 8-38

per-VLAN spanning-tree plus

See PVST+

physical ports 10-2

PIM-DVMRP, as snooping method 20-8

ping

character output description 31-13

executing 31-13

overview 31-13

policed-DSCP map for QoS 29-53

policers

configuring

for each matched traffic class 29-45

for more than one traffic class 29-48

described 29-4

displaying 29-68

number of 29-31

types of 29-8

policing

described 29-4

token-bucket algorithm 29-9

policy maps for QoS

characteristics of 29-45

described 29-7

displaying 29-68

nonhierarchical on physical ports

configuring 29-45

described 29-8

port ACLs, described 28-2

Port Aggregation Protocol

See EtherChannel

port-based authentication

accounting 9-9

authentication server

defined 9-2

RADIUS server 9-2

client, defined 9-2

configuration guidelines 9-19

configuring

802.1x authentication 9-21

guest VLAN 9-29

host mode 9-24

inaccessible authentication bypass 9-31

manual re-authentication of a client 9-25

port-based authentication (continued)

configuring (continued)

periodic re-authentication 9-24

quiet period 9-25

RADIUS server 9-24

RADIUS server parameters on the switch 9-23

restricted VLAN 9-30

switch-to-client frame-retransmission number 9-27

switch-to-client retransmission time 9-26

default configuration 9-18

described 9-1

device roles 9-2

displaying statistics 9-36

EAPOL-start frame 9-5

EAP-request/identity frame 9-5

EAP-response/identity frame 9-5

encapsulation 9-3

guest VLAN

configuration guidelines 9-11, 9-12

described 9-11

host mode 9-8

inaccessible authentication bypass

configuring 9-31

described 9-13

guidelines 9-20

initiation and message exchange 9-5

magic packet 9-15

method lists 9-21

multiple-hosts mode, described 9-8

ports

authorization state and dot1x port-control command 9-7

authorized and unauthorized 9-7

critical 9-13

voice VLAN 9-14

port-based authentication (continued)

port security

and voice VLAN 9-15

described 9-14

interactions 9-15

multiple-hosts mode 9-8

resetting to default values 9-36

statistics, displaying 9-36

switch

as proxy 9-3

RADIUS client 9-3

upgrading from a previous release 9-21

VLAN assignment

AAA authorization 9-21

characteristics 9-10

configuration tasks 9-11

described 9-10

voice VLAN

described 9-14

PVID 9-14

VVID 9-14

wake-on-LAN, described 9-15

port blocking 1-3, 21-6

port-channel

See EtherChannel

Port Fast

described 17-2

enabling 17-10

mode, spanning tree 12-25

support for 1-6

port membership modes, VLAN 12-3

port priority

MSTP 16-19

STP 15-16

ports

access 10-2

blocking 21-6

dual-purpose uplink 10-4

dynamic access 12-3

ports (continued)

protected 21-5

secure 21-7

static-access 12-3, 12-10

switch 10-2

trunks 12-3, 12-14

VLAN assignments 12-10

port security

aging 21-15

and QoS trusted boundary 29-35

configuring 21-11

default configuration 21-10

described 21-7

displaying 21-16

on trunk ports 21-12

sticky learning 21-8

violations 21-9

with other features 21-10

port-shutdown response, VMPS 12-24

preemption

default configuration 18-4

preemption delay

default configuration 18-4

preferential treatment of traffic

See QoS

preventing unauthorized access 8-1

primary links 18-2

priority

overriding CoS 14-6

trusting CoS 14-6

private VLAN edge ports

See protected ports

privileged EXEC mode 2-2

privilege levels

changing the default for lines 8-9

command switch 5-15

exiting 8-9

logging into 8-9

mapping on member switches 5-15

privilege levels (continued)

overview 8-2, 8-7

setting a command with 8-8

protected ports 1-7, 21-5

pruning, VTP

disabling

in VTP domain 13-14

on a port 12-19

enabling

in VTP domain 13-14

on a port 12-19

examples 13-5

overview 13-4

pruning-eligible list

changing 12-19

for VTP pruning 13-4

VLANs 13-14

PVST+

described 15-9

IEEE 802.1Q trunking interoperability 15-10

instances supported 15-9

Q

QoS

and MQC commands 29-1

auto-QoS

categorizing traffic 29-20

configuration and defaults display 29-28

configuration guidelines 29-24

described 29-19

disabling 29-25

displaying generated commands 29-25

displaying the initial configuration 29-28

effects on running configuration 29-24

egress queue defaults 29-20

enabling for VoIP 29-25

example configuration 29-26

QoS (continued)

auto-QoS (continued)

ingress queue defaults 29-20

list of generated commands 29-21

basic model 29-4

classification

class maps, described 29-7

defined 29-4

DSCP transparency, described 29-36

flowchart 29-6

forwarding treatment 29-3

in frames and packets 29-3

IP ACLs, described 29-5, 29-7

MAC ACLs, described 29-5, 29-7

options for IP traffic 29-5

options for non-IP traffic 29-5

policy maps, described 29-7

trust DSCP, described 29-5

trusted CoS, described 29-5

trust IP precedence, described 29-5

class maps

configuring 29-43

displaying 29-68

configuration guidelines

auto-QoS 29-24

standard QoS 29-31

configuring

aggregate policers 29-48

auto-QoS 29-19

default port CoS value 29-34

DSCP maps 29-50

DSCP transparency 29-36

DSCP trust states bordering another domain 29-37

egress queue characteristics 29-60

ingress queue characteristics 29-56

IP extended ACLs 29-41

IP standard ACLs 29-40

MAC ACLs 29-42

policy maps on physical ports 29-45

QoS (continued)

configuring (continued)

sport trust states within the domain 29-33

trusted boundary 29-35

default auto configuration 29-20

default standard configuration 29-29

displaying statistics 29-68

DSCP transparency 29-36

egress queues

allocating buffer space 29-61

buffer allocation scheme, described 29-17

configuring shaped weights for SRR 29-65

configuring shared weights for SRR 29-66

described 29-4

displaying the threshold map 29-64

flowchart 29-16

mapping DSCP or CoS values 29-63

scheduling, described 29-4

setting WTD thresholds 29-61

WTD, described 29-18

enabling globally 29-32

flowcharts

classification 29-6

egress queueing and scheduling 29-16

ingress queueing and scheduling 29-14

policing and marking 29-10

implicit deny 29-7

ingress queues

allocating bandwidth 29-58

allocating buffer space 29-58

buffer and bandwidth allocation, described 29-15

configuring shared weights for SRR 29-58

configuring the priority queue 29-59

described 29-4

displaying the threshold map 29-57

flowchart 29-14

mapping DSCP or CoS values 29-57

priority queue, described 29-15

scheduling, described 29-4

QoS (continued)

ingress queues (continued)

setting WTD thresholds 29-57

WTD, described 29-15

IP phones

automatic classification and queueing 29-19

detection and trusted settings 29-19, 29-35

limiting bandwidth on egress interface 29-67

mapping tables

CoS-to-DSCP 29-51

displaying 29-68

DSCP-to-CoS 29-54

DSCP-to-DSCP-mutation 29-55

IP-precedence-to-DSCP 29-52

policed-DSCP 29-53

types of 29-11

marked-down actions 29-47

marking, described 29-4, 29-8

overview 29-1

packet modification 29-18

policers

configuring 29-47, 29-49

described 29-8

displaying 29-68

number of 29-31

types of 29-8

policies, attaching to an interface 29-8

policing

described 29-4, 29-8

token bucket algorithm 29-9

policy maps

characteristics of 29-45

displaying 29-68

nonhierarchical on physical ports 29-45

QoS label, defined 29-4

queues

configuring egress characteristics 29-60

configuring ingress characteristics 29-56

high priority (expedite) 29-18, 29-66

QoS (continued)

queues (continued)

location of 29-12

SRR, described 29-13

WTD, described 29-12

rewrites 29-18

support for 1-8

trust states

bordering another domain 29-37

described 29-5

trusted device 29-35

within the domain 29-33

quality of service

See QoS

queries, IGMP 20-4

query solicitation, IGMP 20-12

R

RADIUS

attributes

vendor-proprietary 8-30

vendor-specific 8-29

configuring

accounting 8-28

authentication 8-23

authorization 8-27

communication, global 8-21, 8-29

communication, per-server 8-20, 8-21

multiple UDP ports 8-21

default configuration 8-20

defining AAA server groups 8-25

displaying the configuration 8-31

identifying the server 8-20

in clusters 5-15

limiting the services to the user 8-27

method list, defined 8-20

operation of 8-19

overview 8-18

RADIUS (continued)

suggested network environments 8-18

support for 1-8

tracking services accessed by user 8-28

range

macro 10-8

of interfaces 10-7

rapid convergence 16-10

rapid per-VLAN spanning-tree plus

See rapid PVST+

rapid PVST+

described 15-9

IEEE 802.1Q trunking interoperability 15-10

instances supported 15-9

Rapid Spanning Tree Protocol

See RSTP

rcommand command 5-15

RCP

configuration files

downloading B-16

overview B-15

preparing the server B-15

uploading B-17

image files

deleting old image B-32

downloading B-30

preparing the server B-29

uploading B-32

reconfirmation interval, VMPS, changing 12-27

reconfirming dynamic VLAN membership 12-27

recovery procedures 31-1

redundancy

EtherChannel 30-2

STP

backbone 15-8

path cost 12-22

port priority 12-20

redundant links and UplinkFast 17-13

reloading software 3-15

Remote Authentication Dial-In User Service

See RADIUS

Remote Copy Protocol

See RCP

Remote Network Monitoring

See RMON

Remote SPAN

See RSPAN

remote SPAN 23-2

report suppression, IGMP

described 20-6

disabling 20-15

requirements

cluster xlv

device manager xliv

Network Assistant xliv

resequencing ACL entries 28-12

resetting a UDLD-shutdown interface 24-6

restricted VLAN

configuring 9-30

described 9-12

using with IEEE 802.1x 9-12

restricting access

NTP services 6-8

overview 8-1

passwords and privilege levels 8-2

RADIUS 8-17

TACACS+ 8-10

retry count, VMPS, changing 12-28

RFC

1112, IP multicast and IGMP 20-2

1157, SNMPv1 27-2

1305, NTP 6-2

1757, RMON 25-2

1901, SNMPv2C 27-2

1902 to 1907, SNMPv2 27-2

2236, IP multicast and IGMP 20-2

2273-2275, SNMPv3 27-2

RMON

default configuration 25-3

displaying status 25-6

enabling alarms and events 25-3

groups supported 25-2

overview 25-1

statistics

collecting group Ethernet 25-5

collecting group history 25-5

support for 1-9

root guard

described 17-8

enabling 17-15

support for 1-7

root switch

MSTP 16-17

STP 15-14

RSPAN 23-2

characteristics 23-7

configuration guidelines 23-16

default configuration 23-9

destination ports 23-6

displaying status 23-22

interaction with other features 23-8

monitored ports 23-5

monitoring ports 23-6

overview 1-9, 23-1

received traffic 23-4

sessions

creating 23-16

defined 23-3

limiting source traffic to specific VLANs 23-21

specifying monitored ports 23-16

with ingress traffic enabled 23-20

source ports 23-5

transmitted traffic 23-5

VLAN-based 23-6

RSTP

active topology 16-9

BPDU

format 16-12

processing 16-13

designated port, defined 16-9

designated switch, defined 16-9

interoperability with IEEE 802.1D

described 16-8

restarting migration process 16-25

topology changes 16-13

overview 16-8

port roles

described 16-9

synchronized 16-11

proposal-agreement handshake process 16-10

rapid convergence

described 16-10

edge ports and Port Fast 16-10

point-to-point links 16-10, 16-24

root ports 16-10

root port, defined 16-9

See also MSTP

running configuration, saving 3-10

S

SC (standby command switch) 5-9

scheduled reloads 3-15

SDM

described 7-1

templates

configuring 7-2

number of 7-1

SDM template

configuration guidelines 7-2

configuring 7-2

types of 7-1

secure HTTP client

configuring 8-42

displaying 8-43

secure HTTP server

configuring 8-41

displaying 8-43

secure MAC addresses

deleting 21-14

maximum number of 21-8

types of 21-8

secure ports, configuring 21-7

secure remote connections 8-33

Secure Shell

See SSH

Secure Socket Layer

See SSL

security, port 21-7

security features 1-7

sequence numbers in log messages 26-7

server mode, VTP 13-3

service-provider network, MSTP and RSTP 16-1

set-request operation 27-5

setup program

failed command switch replacement 31-10

replacing failed command switch 31-8

severity levels, defining in system messages 26-8

SFPs

monitoring status of 10-19, 31-12

security and identification 31-12

status, displaying 31-12

shaped round robin

See SRR

show access-lists hw-summary command 28-17

show and more command output, filtering 2-10

show cdp traffic command 22-5

show cluster members command 5-15

show configuration command 10-16

show forward command 31-19

show interfaces command 10-14, 10-16

show platform forward command 31-19

show running-config command

displaying ACLs 28-16, 28-17

interface description in 10-16

shutdown command on interfaces 10-20

Simple Network Management Protocol

See SNMP

Smartports macros

applying Cisco-default macros 11-6

applying global parameter values 11-5, 11-6

applying macros 11-5

applying parameter values 11-5, 11-7

configuration guidelines 11-3

creating 11-4

default configuration 11-2

defined 11-1

displaying 11-8

tracing 11-3

website 11-2

SNAP 22-1

SNMP

accessing MIB variables with 27-4

agent

described 27-4

disabling 27-8

authentication level 27-11

community strings

configuring 27-8

for cluster switches 27-4

overview 27-4

configuration examples 27-16

default configuration 27-7

engine ID 27-7

groups 27-7, 27-10

host 27-7

ifIndex values 27-6

in-band management 1-5

in clusters 5-14

SNMP (continued)

informs

and trap keyword 27-12

described 27-5

differences from traps 27-5

disabling 27-15

enabling 27-15

limiting access by TFTP servers 27-16

limiting system log messages to NMS 26-9

manager functions 1-4, 27-3

managing clusters with 5-16

MIBs

location of A-4

supported A-1

notifications 27-5

overview 27-1, 27-4

security levels 27-3

status, displaying 27-17

system contact and location 27-15

trap manager, configuring 27-14

traps

described 27-3, 27-5

differences from informs 27-5

disabling 27-15

enabling 27-12

enabling MAC address notification 6-22

overview 27-1, 27-5

types of 27-12

users 27-7, 27-10

versions supported 27-2

SNMPv1 27-2

SNMPv2C 27-2

SNMPv3 27-2

snooping, IGMP 20-1

software images

location in flash B-20

recovery procedures 31-2

scheduling reloads 3-16

tar file format, described B-20

See also downloading and uploading

source addresses, in IPv4 ACLs 28-9

source-and-destination-IP address based forwarding, EtherChannel 30-7

source-and-destination MAC address forwarding, EtherChannel 30-6

source-IP address based forwarding, EtherChannel 30-6

source-MAC address forwarding, EtherChannel 30-6

SPAN

configuration guidelines 23-10

default configuration 23-9

destination ports 23-6

displaying status 23-22

interaction with other features 23-8

monitored ports 23-5

monitoring ports 23-6

overview 1-9, 23-1

ports, restrictions 21-11

received traffic 23-4

sessions

configuring ingress forwarding 23-14, 23-21

creating 23-10

defined 23-3

limiting source traffic to specific VLANs 23-14

removing destination (monitoring) ports 23-12

specifying monitored ports 23-10

with ingress traffic enabled 23-13

source ports 23-5

transmitted traffic 23-5

VLAN-based 23-6

spanning tree and native VLANs 12-15

Spanning Tree Protocol

See STP

SPAN traffic 23-4

SRR

configuring

shaped weights on egress queues 29-65

shared weights on egress queues 29-66

shared weights on ingress queues 29-58

described 29-13

shaped mode 29-13

shared mode 29-13

support for 1-9

SSH

configuring 8-34

cryptographic software image 8-33

described 1-5, 8-33

encryption methods 8-34

user authentication methods, supported 8-34

SSL

configuration guidelines 8-40

configuring a secure HTTP client 8-42

configuring a secure HTTP server 8-41

cryptographic software image 8-37

described 8-37

monitoring 8-43

standby command switch

configuring

considerations 5-11

defined 5-2

priority 5-9

requirements 5-3

virtual IP address 5-11

See also cluster standby group and HSRP

standby group, cluster

See cluster standby group and HSRP

standby links 18-2

startup configuration

booting

manually 3-13

specific image 3-13

clearing B-18

startup configuration (continued)

configuration file

automatically downloading 3-12

specifying the filename 3-12

default boot configuration 3-12

static access ports

assigning to VLAN 12-10

defined 10-3, 12-3

static addresses

See addresses

static MAC addressing 1-7

static VLAN membership 12-2

statistics

802.1x 9-36

CDP 22-4

interface 10-19

QoS ingress and egress 29-68

RMON group Ethernet 25-5

RMON group history 25-5

SNMP input and output 27-17

VTP 13-16

sticky learning 21-8

storm control

configuring 21-3

described 21-1

disabling 21-5

displaying 21-16

support for 1-3

thresholds 21-1

STP

accelerating root port selection 17-4

BackboneFast

described 17-5

disabling 17-14

enabling 17-13

STP (continued)

BPDU filtering

described 17-3

disabling 17-12

enabling 17-12

BPDU guard

described 17-2

disabling 17-11

enabling 17-11

BPDU message exchange 15-3

configuration guidelines 15-11, 17-10

configuring

forward-delay time 15-21

hello time 15-20

maximum aging time 15-21

path cost 15-18

port priority 15-16

root switch 15-14

secondary root switch 15-16

spanning-tree mode 15-13

switch priority 15-19

transmit hold-count 15-22

counters, clearing 15-22

default configuration 15-11

default optional feature configuration 17-9

designated port, defined 15-3

designated switch, defined 15-3

detecting indirect link failures 17-5

disabling 15-14

displaying status 15-22

EtherChannel guard

described 17-7

disabling 17-14

enabling 17-14

extended system ID

effects on root switch 15-14

effects on the secondary root switch 15-16

overview 15-4

unexpected behavior 15-14

STP (continued)

features supported 1-5

IEEE 802.1D and bridge ID 15-4

IEEE 802.1D and multicast addresses 15-8

IEEE 802.1t and VLAN identifier 15-4

inferior BPDU 15-3

instances supported 15-9

interface state, blocking to forwarding 17-2

interface states

blocking 15-6

disabled 15-7

forwarding 15-5, 15-6

learning 15-6

listening 15-6

overview 15-4

interoperability and compatibility among modes 15-10

limitations with IEEE 802.1Q trunks 15-10

load sharing

overview 12-20

using path costs 12-22

using port priorities 12-20

loop guard

described 17-9

enabling 17-15

modes supported 15-9

multicast addresses, effect of 15-8

optional features supported 1-5

overview 15-2

path costs 12-22

Port Fast

described 17-2

enabling 17-10

port priorities 12-21

preventing root switch selection 17-8

protocols supported 15-9

redundant connectivity 15-8

STP (continued)

root guard

described 17-8

enabling 17-15

root port, defined 15-3

root switch

configuring 15-14

effects of extended system ID 15-4, 15-14

election 15-3

unexpected behavior 15-14

shutdown Port Fast-enabled port 17-2

status, displaying 15-22

superior BPDU 15-3

timers, described 15-20

UplinkFast

described 17-3

enabling 17-13

stratum, NTP 6-2

success response, VMPS 12-24

summer time 6-13

SunNet Manager 1-4

switch clustering technology 5-1

See also clusters, switch

switch console port 1-5

Switch Database Management

See SDM

Switched Port Analyzer

See SPAN

switched ports 10-2

switchport block multicast command 21-7

switchport block unicast command 21-7

switchport protected command 21-6

switch priority

MSTP 16-21

STP 15-19

switch software features 1-1

syslog

See system message logging

system clock

configuring

daylight saving time 6-13

manually 6-11

summer time 6-13

time zones 6-12

displaying the time and date 6-12

overview 6-1

See also NTP

system message logging

default configuration 26-3

defining error message severity levels 26-8

disabling 26-3

displaying the configuration 26-12

enabling 26-4

facility keywords, described 26-11

level keywords, described 26-9

limiting messages 26-9

message format 26-2

overview 26-1

sequence numbers, enabling and disabling 26-7

setting the display destination device 26-4

synchronizing log messages 26-5

syslog facility 1-10

time stamps, enabling and disabling 26-7

UNIX syslog servers

configuring the daemon 26-10

configuring the logging facility 26-11

facilities supported 26-11

system name

default configuration 6-15

default setting 6-15

manual configuration 6-15

See also DNS

system prompt, default setting 6-14, 6-15

system resources, optimizing 7-1

T

TACACS+

accounting, defined 8-11

authentication, defined 8-11

authorization, defined 8-11

configuring

accounting 8-17

authentication key 8-13

authorization 8-16

login authentication 8-14

default configuration 8-13

displaying the configuration 8-17

identifying the server 8-13

in clusters 5-15

limiting the services to the user 8-16

operation of 8-12

overview 8-10

support for 1-8

tracking services accessed by user 8-17

tar files

creating B-5

displaying the contents of B-6

extracting B-7

image file format B-20

TDR 1-10

Telnet

accessing management interfaces 2-10

number of connections 1-5

setting a password 8-6

templates, SDM 7-1

temporary self-signed certificate 8-38

Terminal Access Controller Access Control System Plus

See TACACS+

terminal lines, setting a password 8-6

TFTP

configuration files

downloading B-10

preparing the server B-10

uploading B-11

configuration files in base directory 3-6

configuring for autoconfiguration 3-5

image files

deleting B-23

downloading B-22

preparing the server B-21

uploading B-24

limiting access by servers 27-16

TFTP server 1-4

threshold, traffic level 21-2

time

See NTP and system clock

Time Domain Reflector

See TDR

time-range command 28-14

time ranges in ACLs 28-14

time stamps in log messages 26-7

time zones 6-12

Token Ring VLANs

support for 12-5

VTP support 13-4

ToS 1-8

traceroute, Layer 2

and ARP 31-15

and CDP 31-14

broadcast traffic 31-14

described 31-14

IP addresses and subnets 31-15

MAC addresses and VLANs 31-15

multicast traffic 31-15

multiple devices on a port 31-15

unicast traffic 31-14

usage guidelines 31-14

traceroute command 31-16

See also IP traceroute

traffic

blocking flooded 21-7

fragmented 28-3

unfragmented 28-3

traffic policing 1-9

traffic suppression 21-1

transmit hold-count

see STP

transparent mode, VTP 13-3, 13-12

trap-door mechanism 3-2

traps

configuring MAC address notification 6-22

configuring managers 27-12

defined 27-3

enabling 6-22, 27-12

notification types 27-12

overview 27-1, 27-5

troubleshooting

connectivity problems 31-12, 31-14, 31-15

detecting unidirectional links 24-1

displaying crash information 31-21

setting packet forwarding 31-19

SFP security and identification 31-12

show forward command 31-19

with CiscoWorks 27-4

with debug commands 31-18

with ping 31-13

with system message logging 26-1

with traceroute 31-15

trunk failover

See link-state tracking

trunking encapsulation 1-7

trunk ports

configuring 12-17

defined 10-3, 12-3

trunks

allowed-VLAN list 12-18

load sharing

setting STP path costs 12-22

using STP port priorities 12-20, 12-21

native VLAN for untagged traffic 12-19

parallel 12-22

pruning-eligible list 12-19

to non-DTP device 12-14

trusted boundary for QoS 29-35

trusted port states

between QoS domains 29-37

classification options 29-5

ensuring port security for IP phones 29-35

support for 1-9

within a QoS domain 29-33

trustpoints, CA 8-37

twisted-pair Ethernet, detecting unidirectional links 24-1

type of service

See ToS

U

UDLD

configuration guidelines 24-4

default configuration 24-4

disabling

globally 24-5

on fiber-optic interfaces 24-5

per interface 24-5

echoing detection mechanism 24-2

enabling

globally 24-5

per interface 24-5

link-detection mechanism 24-1

neighbor database 24-2

overview 24-1

resetting an interface 24-6

UDLD (continued)

status, displaying 24-6

support for 1-5

unauthorized ports with IEEE 802.1x 9-7

unicast MAC address filtering 1-4

and adding static addresses 6-25

and broadcast MAC addresses 6-25

and CPU packets 6-25

and multicast addresses 6-25

and router MAC addresses 6-25

configuration guidelines 6-25

described 6-25

unicast storm 21-1

unicast storm control command 21-4

unicast traffic, blocking 21-7

UniDirectional Link Detection protocol

See UDLD

UNIX syslog servers

daemon configuration 26-10

facilities supported 26-11

message logging configuration 26-11

unrecognized Type-Length-Value (TLV) support 13-4

upgrading a Catalyst 2950 switch

configuration compatibility issues C-1

differences in configuration commands C-1

feature behavior incompatibilities C-5

incompatible command messages C-1

recommendations C-1

upgrading information

See release notes

upgrading software images

See downloading

UplinkFast

described 17-3

disabling 17-13

enabling 17-13

support for 1-5

uploading

configuration files

preparing B-10, B-12, B-15

reasons for B-8

using FTP B-14

using RCP B-17

using TFTP B-11

image files

preparing B-21, B-25, B-29

reasons for B-19

using FTP B-28

using RCP B-32

using TFTP B-24

user EXEC mode 2-2

username-based authentication 8-6

V

version-dependent transparent mode 13-4

virtual IP address

cluster standby group 5-11

command switch 5-11

vlan.dat file 12-4

VLAN 1, disabling on a trunk port 12-18

VLAN 1 minimization 12-18

vlan-assignment response, VMPS 12-24

VLAN configuration

at bootup 12-7

saving 12-7

VLAN configuration mode 2-2, 12-6

VLAN database

and startup configuration file 12-7

and VTP 13-1

VLAN configuration saved in 12-6

VLANs saved in 12-4

vlan database command 12-6

VLAN filtering and SPAN 23-6

vlan global configuration command 12-6

VLAN ID, discovering 6-26

VLAN management domain 13-2

VLAN Management Policy Server

See VMPS

VLAN membership

confirming 12-27

modes 12-3

VLAN Query Protocol

See VQP

VLANs

adding 12-8

adding to VLAN database 12-8

aging dynamic addresses 15-9

allowed on trunk 12-18

and spanning-tree instances 12-2, 12-6, 12-12

configuration guidelines, extended-range VLANs 12-12

configuration guidelines, normal-range VLANs 12-5

configuration options 12-6

configuring 12-1

configuring IDs 1006 to 4094 12-12

creating in config-vlan mode 12-8

creating in VLAN configuration mode 12-9

default configuration 12-7

deleting 12-9

described 10-2, 12-1

displaying 12-13

extended-range 12-1, 12-11

features 1-7

illustrated 12-2

limiting source traffic with RSPAN 23-21

limiting source traffic with SPAN 23-14

modifying 12-8

multicast 20-17

native, configuring 12-19

normal-range 12-1, 12-4

number supported 1-7

parameters 12-4

port membership modes 12-3

static-access ports 12-10

STP and IEEE 802.1Q trunks 15-10

VLANs (continued)

supported 12-2

Token Ring 12-5

traffic between 12-2

VTP modes 13-3

VLAN Trunking Protocol

See VTP

VLAN trunks 12-14

VMPS

administering 12-28

configuration example 12-29

configuration guidelines 12-25

default configuration 12-25

description 12-23

dynamic port membership

described 12-24

reconfirming 12-27

troubleshooting 12-29

entering server address 12-26

mapping MAC addresses to VLANs 12-24

monitoring 12-28

reconfirmation interval, changing 12-27

reconfirming membership 12-27

retry count, changing 12-28

voice-over-IP 14-1

voice VLAN

Cisco 7960 phone, port connections 14-1

configuration guidelines 14-3

configuring IP phones for data traffic

override CoS of incoming frame 14-6

trust CoS priority of incoming frame 14-6

configuring ports for voice traffic in

802.1p priority tagged frames 14-5

802.1Q frames 14-5

connecting to an IP phone 14-4

default configuration 14-3

described 14-1

displaying 14-6

voice VLAN (continued)

IP phone data traffic, described 14-2

IP phone voice traffic, described 14-2

VQP 1-7, 12-23

VTP

adding a client to a domain 13-14

advertisements 12-16, 13-3

and extended-range VLANs 13-1

and normal-range VLANs 13-1

client mode, configuring 13-11

configuration

global configuration mode 13-7

guidelines 13-8

privileged EXEC mode 13-7

requirements 13-9

saving 13-7

VLAN configuration mode 13-7

configuration mode options 13-7

configuration requirements 13-9

configuration revision number

guideline 13-14

resetting 13-15

configuring

client mode 13-11

server mode 13-9

transparent mode 13-12

consistency checks 13-4

default configuration 13-6

described 13-1

disabling 13-12

domain names 13-8

domains 13-2

modes

client 13-3, 13-11

server 13-3, 13-9

transitions 13-3

transparent 13-3, 13-12

monitoring 13-16

passwords 13-8

VTP (continued)

pruning

disabling 13-14

enabling 13-14

examples 13-5

overview 13-4

support for 1-7

pruning-eligible list, changing 12-19

server mode, configuring 13-9

statistics 13-16

support for 1-7

Token Ring support 13-4

transparent mode, configuring 13-12

using 13-1

version, guidelines 13-8

Version 1 13-4

Version 2

configuration guidelines 13-8

disabling 13-13

enabling 13-13

overview 13-4

W

weighted tail drop

See WTD

wizards 1-2

WTD

described 29-12

setting thresholds

egress queue-sets 29-61

ingress queues 29-57

support for 1-9

X

Xmodem protocol 31-2