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Catalyst 4500 Series Software Configuration Guide, 7.4
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Preface
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Product Overview
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Using the Command-Line Interface
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Configuring Ethernet and Fast Ethernet Switching
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Configuring Gigabit Ethernet Switching
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Configuring Fast EtherChannel and Gigabit EtherChannel
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Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports
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Configuring GVRP
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Configuring QoS
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Configuring Multicast Services
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Configuring Port Security
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Configuring the IP Permit List
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Configuring Protocol Filtering
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Checking Port Status and Connectivity
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Configuring CDP
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Configuring RMON
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Administering the Switch
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Configuring Switch Access Using AAA
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Working with System Software Images
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Using the Flash File System
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Working with Configuration Files
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Configuring System Message Logging
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Configuring DNS
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Configuring NTP
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Glossary
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Index
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Table Of Contents
Numerics - A - B - C - D - E - F - G - H - I - K - L - M - N - O - P - Q - R - S - T - U - V - W -
Index
Numerics
10/100 port speed, setting 4-4
802.1Q
mapping VLANs to ISL 10-10
overview 11-1
restrictions 11-4
supported switches (table) 11-4
802.1x authentication
configurable parameters 27-9
overview 27-7
using a RADIUS server for VLAN assignment 27-9
A
accelerator module, switch fabric
See switch fabric accelerator module
accounting
configuration guidelines 27-58
disabling 27-59
enabling 27-58
overview 27-55
See RADIUS accounting; TACACS+ accounting
adding multicast filter profiles 15-21
addresses
See IP addresses; MAC addresses
Address Resolution Protocol
administration
administrative groups, EtherChannel 6-6
advertisements
aliases
See command aliases; IP aliases
aliases, command 2-7
ARP
configuring entries 26-8
assigning port filter associations 15-23
attempts, limiting telnet 27-13
audience 1-21
authentication
authorization
overview 27-48
See also TACACS+ authorization 27-50
autonegotiation
duplex 4-5
speed 4-5
trunks 11-2
auxiliary VLANs
dynamic VLAN membership 12-15
software support 10-5
B
BackboneFast
adding a switch (figure) 8-18
disabling 8-17
displaying statistics 8-16
enabling 8-16
multiple spanning tree 7-15
overview 8-13
backplane channel module 32-3
banners
boot configuration
clearing system flash 28-7
ignoring NVRAM 28-6
BOOT environment variables
default 28-4
displaying 28-9
overview 28-3
boot field
overview 28-2
setting 28-4
BPDU filter
multiple spanning tree 7-15
BPDU guard
disabling 8-9
enabling 8-8
multiple spanning tree 7-15
BPDU overview 7-2
BPDU skewing
configuring 7-42
understanding 7-41
bridge identifiers
MAC addresses 7-13
PVST+ 7-22
bridge protocol data unit
C
Catalyst 2948G switches, overview (table) 1-2
Catalyst 2980G switches, overview (table) 1-3
Catalyst 4000 family switches, overview (table) 1-1
CDP
default configuration 20-1
disabling globally 20-2
disabling on ports 20-3
displaying neighbor information 20-5
enabling globally 20-2
enabling on ports 20-3
overview 20-1
setting holdtime 20-4
setting message interval 20-4
CGMP
clearing multicast groups 15-18
clearing multicast router ports 15-17
configuring multicast groups 15-6, 15-17
disabling 15-8
disabling fast-leave processing 15-8
displaying multicast groups 15-6
enabling 15-4
enabling fast-leave processing 15-5
joining multicast groups 15-2
leaving multicast groups 15-2
overview 15-1
specifying multicast router ports 15-16
viewing statistics 15-7
channel modes, EtherChannel (table) 6-5
LACP 6-16
checksum, verifying Flash file 30-7
CIDR
static routes and 26-9
Cisco Discovery Protocol
Cisco Group Management Protocol
CiscoWorks2000 23-13
CIST 7-14
classification
frames 14-3
classless interdomain routing
class of service
clear boot system flash command 28-7
CLI
command aliases 2-7
ROM monitor 2-8
switch
accessing 2-2
designating IP addresses 2-8
designating IP aliases 2-8
designating MAC addresses 2-8
designating modules 2-7
designating ports 2-7
designating VLANs 2-7
help 2-4
history substitution 2-5
operating 2-3
clock, setting 26-4
command aliases
creating 26-6
using 2-7
command-line interface
Common 7-14
Common and Internal Spanning Tree
See also CIST 7-14
Common Spanning Tree
See CST 7-14
common spanning tree
community ports
definition 10-12
community strings
defining 23-6
overview 23-5
CONFIG_FILE variable
setting recurrence 28-5
configuration
clearing the 31-8
configuration files
creating 31-2
downloading via RCP 31-6
downloading via TFTP 31-4
guidelines 31-1
uploading preparation 31-5, 31-7
uploading to RCP server 31-7
uploading to TFTP server 31-5
configuration guidelines
TACACS+ accounting 27-58
configuration register
default setting 28-4
ignoring NVRAM at boot 28-6
overview 28-2
setting boot field 28-4
setting CONFIG_FILE recurrence 28-5
configurations
IGMP traffic filtering 15-18
configuring
multicast filtering 15-20
port IP multicast filtering 15-20
configuring a switch
using a file on an rcp server 31-6
console port
disconnecting user sessions 19-8
establishing connections 2-2
monitoring user sessions 19-8
SLIP and 3-8
system message logging settings 33-5
conventions, document 1-24
CoS
configuring default switch values 14-5
drop thresholds
mapping 14-6
transmitting 14-3
Layer 2 CoS values 14-3
reverting to default 14-5
CST 7-14
VLAN 1 7-18
D
databases
downloading VMPS 12-10
See also VMPS database 12-1
date, setting 26-4
daylight saving time
disabling adjustment 35-7
enabling adjustment 35-5
default configurations
Ethernet 4-2
Fast Ethernet 4-2
TACACS+ accounting 27-57
default gateway, configuring 3-7
default IGMP filter configuration 15-19
denying filter match-action 15-22
DHCP
releasing lease 3-11
renewing lease 3-11
sc0 interface and 3-10
disabling IGMP multicast filtering 15-20
DISL
DNS
clearing domain names 34-3
default configuration 34-1
disabling 34-3
enabling 34-2
overview 34-1
setting domain names 34-2
setting up 34-2
system name and 26-1
system prompt and 26-1
DNS servers
clearing 34-2
specifying 34-2
documentation
conventions 1-24
organization 1-21
related 1-23
domain names
clearing 34-3
setting 34-2
Domain Name System
downloading
configuration files 31-4, 31-6
drop thresholds
CoS mapping 14-6
transmit queue 14-3
DTP
non-Cisco devices and 11-3
overview 11-2
duplex mode
Fast Ethernet 4-5
Dynamic Host Configuration Protocol
dynamic ports
troubleshooting 12-11
dynamic port VLAN membership
Dynamic Trunking Protocol
E
enable mode, switch CLI 2-3
enable password
recovering lost 27-17
setting 27-16
enabling IGMP multicast filtering 15-19
enabling IGMP traffic filtering 15-21
encapsulation type descriptions, trunks (table) 11-3
encryption
environment variables
See BOOT environment variables
errdisable timeout, configuring 4-7
error messages
system message logging (syslog) 33-1
VMPS (table) 12-11
establishing multicast filter profiles 15-21
EtherChannel
administrative groups 6-6
channel modes (table) 6-5
LACP 6-16
configuration guidelines 6-3
configuring 6-6
configuring administrative groups 6-7
displaying PAgP statistics 6-12
displaying statistics 6-11
EtherChannel IDs 6-6
frame distribution 6-2
hardware support 6-2
maximum number of channels supported 6-4
modes 6-5
modes, using LACP 6-16
overview 6-1
PAgP and 6-5
port costs 6-8
port-VLAN costs 6-9
sample configuration 11-8
See also Fast EtherChannel; Gigabit EtherChannel
Ethernet
autonegotiation 4-5
checking connectivity 4-8
default configuration 4-2
overview 4-1
setting port duplex 4-5
setting port name 4-3
setting port priority 4-4
setting port speed 4-4
examples, conventions 1-24
extended-range VLANs
F
Fast EtherChannel
example 6-13
overview 6-2
See also EtherChannel; Gigabit EtherChannel
Fast Ethernet
autonegotiation 4-5
checking connectivity 4-8
default configuration 4-2
overview 4-1
setting port duplex 4-5
setting port name 4-3
setting port priority 4-4
setting port speed 4-4
fiber-optic cables, detecting unidirectional links 22-1
filtering
IGMP actions 15-18
filters, protocol
Flash file system
copying files 30-4
deleting files 30-5
listing files 30-3
restoring deleted files 30-6
setting configuration modes 30-2
setting default devices 30-1
verifying checksum 30-7
verifying file checksum 30-7
flow control
configuring 5-8
overview 5-1
forward delay timer 7-39
frame classification
overview 14-3
frame distribution, EtherChannel 6-2
G
GARP Multicast Registration Protocol
GARP timers
GARP VLAN Registration Protocol
Gigabit EtherChannel
example 6-14
See also EtherChannel; Fast EtherChannel
Gigabit Ethernet
checking connectivity 5-9
configuring flow control 5-8
configuring port negotiation 5-8
default configuration 5-6
flow control 5-1
port negotiation 5-3
port negotiation link states (table) 5-3
setting port names 5-7
setting port priority 5-7
GMRP
clearing statistics 15-15
default configuration 15-9
disabling forward-all option 15-12
disabling globally 15-15
disabling per-port 15-11
enabling forward-all option 15-11
enabling globally 15-9
enabling per-port 15-10
overview 15-3
setting timers 15-14
software requirements 15-9
viewing statistics 15-15
group profiles
IGMP multicast 15-18
GVRP
clearing statistics 13-8
configuring registration 13-5
disabling 13-8
enabling 13-3
registration 13-5
setting timers 13-6
viewing statistics 13-7
H
hello time
timer 7-39
history
switch CLI 2-5
I
I-BPDU 7-15
ICMP
IP traceroute 19-12
time-exceeded messages 19-12
ID and MAC addresses, bridge 7-13
IEEE 802.1Q
IEEE 802.1x
IGMP
configuration guidelines 15-4
joining multicast groups 15-2
leaving multicast groups 15-2
overview 15-1
using traffic filtering 15-18
IGMP filtering
software requirements 15-19
IGMP filter match-action
denying and verifying 15-22
permitting and verifying 15-21
IGMP multicast filtering
disabling and verifying 15-20
enabling and verifying 15-19
IGMP traffic filtering 15-18
images
See software images; system images
in-band (sc0) interface
inferior BPDUs, BackboneFast and 8-13
interfaces
me1 (out-of-band management) 3-4, 3-6
sl0 (SLIP)) 3-8
Internal Spanning Tree
See IST 7-14
Internet Control Message Protocol
Internet Group Management Protocol
Inter-Switch Link
IP addresses
adding to IP permit list 17-2
automatic assignment 3-2
CIDR 26-9
clearing from IP permit list 17-4
creating aliases 26-7
default gateway 3-7
designating 2-8
DHCP and 3-10
me1 interface and 3-6
RARP and 3-10
sc0 interface and 3-5
sl0 interface and 3-10
static routes 26-9
VLANs and 10-2
IP aliases
creating 26-7
designating 2-8
IP multicast
CGMP and 15-3
GMRP and 15-8
group entries 15-16
overview 15-1
router ports and group entries 15-16
See also multicast groups; multicast routers
IP permit lists
adding addresses 17-2
clearing entries 17-4
default configuration 17-2
disabling 17-4
enabling 17-3
overview 17-1
IP traceroutes
executing 19-13
overview 19-12
ISL
mapping 802.1Q VLANs 10-10
overview 11-1
supported switches (table) 11-4
isolated ports
definition 10-12
IST
MST regions 7-14
ISTP 7-14
K
Kerberos authentication
configuration guidelines 27-12
copying SRVTAB files 27-34
defining realm 27-32
disabling credentials forwarding 27-36
enabling 27-31
enabling credentials forwarding 27-35
overview 27-4
servers, specifying 27-33
keys
L
LACP
configuration parameters 6-17
configuration procedures 6-18
modes 6-16
Layer 2 traceroute
utility 19-11
leave processing, CGMP
disabling 15-8
enabling 15-5
limiting telnet attempts 27-13
Link Aggregation Control Protocol
listing all multicast filters 15-23
listing port filter associations 15-23
load balancing 7-14
load sharing, trunking and 11-12
local authentication
configuration guidelines 27-12
default configuration 27-11, 27-57
disabling 27-16
enabling 27-14
overview 27-2
password recovery 27-17
setting enable password 27-16
location, setting 26-3
login
limiting attempts 27-2
login authentication
overview 27-2
login banner
clearing 26-5
configuring 26-4
displaying or suppressing the "Cisco Systems Console" login banner 26-5
overview 26-4
login passwords
recovering lost 27-17
setting 27-15
login timer
changing 19-6
loop guard
multiple spanning tree 7-15
M
MAC addresses
allocating 7-13
blocking 16-1
bridge identifiers 7-13
designating 2-8
disabling notification 16-6
enabling notification 16-6
port security and 16-1
setting notification history log size 16-6
setting notification interval 16-6
management interfaces
overview 3-1
mapping VLANs 10-10
match-action filtering 15-21
maximum aging time timers 7-39
me1 interface
assigning IP addresses 3-6
configuring 3-6
overview 3-1
message-of-the-day
metric values, switch TopN reports (table) 21-2
MIBs
Network Analysis Module and 24-3
overview 23-4
MISTP
configuring an instance 7-29
conflicts, MISTP VLAN 7-34
default configuration 7-27
enabling an instance 7-32
mapping VLANs to 7-33
MISTP-PVST+ 7-27
port cost 7-30
port instance cost 7-31
port instance priority 7-32
port priority 7-31
unmapping VLANs from 7-35
modes, switch CLI 2-3
modules
checking status 19-1
configuring Ethernet 4-1, 18-1
configuring Fast Ethernet 4-1, 6-1, 18-1
configuring Gigabit Ethernet 5-1
configuring supervisor engine 3-1
designating on command line 2-7
Ethernet
configuring 6-1
Fast Ethernet
configuring 6-1
Gigabit Ethernet
configuring 6-1
modules, switch fabric accelerator 32-3
MOTD
MST 7-14
boundary ports 7-19
bridge ID priority 7-48
configuration guidelines 7-18
configuring 7-43
configuring bridge ID priority 7-48
edge ports 7-19
enabling 7-44
hop count 7-20
instances 7-18
interoperability 7-17
interoperability with PVST+ 7-15
link type 7-20
mapping VLANs to 7-52
master 7-19
message age 7-20
port cost 7-49
port instance cost 7-50
port instance priority 7-51
port priority 7-49
regions 7-18
understanding 7-14
MSTP
M-record 7-15
M-tree 7-15
multicast
multicast filter profile
removing 15-22
multicast filter profiles
establishing and verifying 15-21
multicast filters
listing all 15-23
removing all 15-23
multicast groups
CGMP and 15-3
clearing 15-18
GMRP and 15-8
joining 15-2
leaving 15-2
multicast port filter associations
removing 15-25
multicast routers
clearing ports 15-17
specifying port for 15-16
multiple forwarding paths 7-14
Multiple Instance Spanning Tree Protocol
Multiple Spanning Tree
See MST 7-14
N
native VLANs
802.1Q and 11-4
neighbor devices, displaying 20-5
NetFlow Feature Card
network fault tolerance 7-14
network management
configuring 24-1
Network Time Protocol
NFFC/NFFC II
IGMP snooping and 15-4
protocol filtering and 18-1
NMS
SPAN, configuring 25-1
nonvolatile random-access memory
normal mode, switch CLI 2-3
normal-range VLANs
NTP
clearing time zone 35-7
configuring broadcast-client mode 35-3
configuring client mode 35-3
default configuration 35-2
disabling 35-8
disabling broadcast-client mode 35-8
disabling client mode 35-8
disabling daylight saving time adjustment 35-7
overview 35-1
NTP authentication
configuring 35-4
enabling daylight saving time adjustment 35-5
setting time zone 35-5
NTP servers
clearing 35-7
specifying 35-3
NVRAM
ignoring content at boot 28-6
setting configuration modes 30-2
O
organization, document 1-21
out-of-band management interface
P
PAgP
displaying statistics 6-12
overview 6-5
passwords
recovering lost 27-17
setting enable 27-16
permit lists
permitting and verifying 15-21
permitting filter match-action 15-21
physical restrictions 15-19
ping
executing 19-10
overview 19-9
Port Aggregation Protocol
port cost
EtherChannel 6-8
PVST+ 7-23
port debounce timer
disabling 4-6
displaying 4-6
enabling 4-6
PortFast
configuring 8-2
multiple spanning tree 7-15
PortFast BPDU guard
configuring 8-8
disabling 8-9
port filter associations
assigning and listing 15-23
port IP multicast filtering 15-20
port names
Ethernet 4-3
Fast Ethernet 4-3
Gigabit Ethernet 5-7
port negotiation
configuring 5-8
overview 5-3
port priority
Ethernet 4-4
Fast Ethernet 4-4
Gigabit Ethernet 5-7
ports
assigning to VLAN 10-9
checking capabilities 19-5
checking status 19-2
designating on command line 2-7
dynamic VLAN membership overview 12-1
private VLAN 10-12
reconfirming VMPS 12-9
setting the debounce timer 4-6
speed
10/100 Fast Ethernet 4-4
port security
clearing MAC addresses 16-5
guidelines for 16-3
MAC address notification 16-6
monitoring MAC addresses 16-6
specifying age time 16-5
specifying secure MAC addresses 16-4
specifying security violation action 16-7
specifying shutdown time 16-8
disabling 16-8
enabling 16-3
monitoring 16-9
overview 16-1
restricting MAC address traffic 16-9
port VLAN cost
configuring for PVST+ 7-25
setting EtherChannel 6-9
port VLAN priority
configuring 7-25
power budget
setting 26-19
power management
Catalyst 4500 series 26-12
Catalyst 4500 series power supplies 26-15
combined mode 26-13
configuring combined mode 26-15
configuring redundant mode 26-14
overview 26-16
redundancy 26-16
redundant mode 26-13
power supplies
fixed 26-12
variable 26-12
priority
private VLANs
configuration guidelines 10-13
creating 10-14
delete mapping 10-18
deleting community VLANs 10-18
deleting isolated VLANs 10-18
deleting primary VLANs 10-17
hardware interactions 10-13
isolated VLAN 10-12
overview 10-12
primary VLAN 10-12
software interactions 10-13
privileged mode, switch CLI 2-3
promiscuous ports
communicating 10-12
prompts
configuring 26-2
overview 26-1
protocol filtering
configuring 18-2
default configuration 18-2
overview 18-1
protocol support 18-1
pruning, VTP
PVST+
configuring bridge ID priority 7-22
default configuration 7-21
default port cost mode 7-24
disabling 7-26
port cost 7-23
port priority 7-24
port VLAN cost 7-25
Q
QoS
CoS
mapping drop thresholds 14-6
reverting to port default 14-5
transmitting drop thresholds 14-3
values 14-3
default configuration 14-4
disabling 14-7
displaying information 14-7
enabling 14-5
frame classification 14-3
labels 14-3
overview 14-1
reverting to defaults 14-7
traffic flow (figure) 14-2
transmit queue
overview 14-3
quality of service
R
RADIUS
configuration guidelines 27-58
RADIUS accounting
accounting events 27-55
creating accounting records 27-55
disabling 27-59
enabling 27-58
overview 27-55
sample configuration 27-61
specifying servers 27-56
suppressing accounting 27-57
updating the server 27-57
RADIUS authentication
configuration guidelines 27-12
default configuration 27-11, 27-57
disabling 27-30
enabling 27-24
overview 27-4
setting deadtime 27-28
setting retransmit count 27-27
setting timeout 27-26
using a RADIUS server for 802.1x VLAN assignment 27-9
RADIUS keys
clearing 27-29
specifying 27-25
RADIUS servers
clearing 27-29
Rapid Spanning Tree Protocol
See RSTP 7-15
RARP
sc0 interface and 3-10
using 3-10
rcp
downloading configuration files 31-6
uploading configuration files 31-7
related documentation 1-23
remote copy protocol
Remote Monitoring
Remote Switched Port Analyzer
removing all multicast filters 15-23
removing multicast filter profile 15-22
removing multicast port filter associations 15-25
reports
IGMP filering 15-18
reports, system status 26-22
reserved-range VLANs
restrictions
IGMP traffic filtering 15-19
Reverse Address Resolution Protocol
RMON
enabling 24-2
overview 24-1
supported MIB objects 24-3
viewing data 24-2
ROM monitor
BOOT environment variables and 28-3
boot process and 28-2
CLI 2-8
configuration register and 28-2
root guard
disabling 7-39
enabling 7-39
multiple spanning tree 7-15
root switch
configuring primary 7-35
configuring secondary 7-36
overview 7-35
router, multicast
RSPAN
configuration examples25-14to 25-17
configuration guidelines 25-10
configuring from CLI 25-11
configuring multiple RSPAN sessions 25-16
configuring single RSPAN session 25-14
disabling 25-13
hardware requirements 25-9
overview 25-1
session limits 25-4
RSTP
overview 7-15
port roles 7-16
port states 7-16
running configuration
downloading via rcp 31-6
S
sc0 interface
assigning IP address 3-5
configuring 3-5
DHCP and 3-10
RARP and 3-10
VLAN assignment 10-2
secure shell encryption
security
configuring 17-1
configuring passwords 27-16
IP permit list 17-1
set spantree portcost command 7-23, 7-49
set spantree priority command 7-48
show port mac-address command 19-4
Simple Network Management Protocol
Single Spanning Tree
See SST 7-14
sl0 interface
configuring 3-8
console port and 3-8
overview 3-1
SLIP interface
SNMP
benefits 23-7
configuring 23-6
default configuration 23-5
defining community strings 23-6
ifindex persistence feature 23-4
overview 23-4
supported RMON MIB objects 24-3
SNMPv3
configuring 23-10
definitions 23-10
overview 23-7
software images
downloading using rcp 29-6
downloading using TFTP 29-2
supervisor engine, description 1-3
uploading to rcp server 29-9
uploading to TFTP server 29-5
software restraints 15-19
SPAN
configuration guidelines 25-5
configuring 25-6
destination port 25-2
disabling 25-8
egress 25-3
ingress 25-3
NMS and 25-1
overview 25-5
session limits 25-4
sessions 25-2
source ports 25-2
traffic 25-4
spanning tree
dummy MAC addresses and 8-11
EtherChannel port costs 6-8
EtherChannel port-VLAN costs 6-9
spanning tree BackboneFast convergence
spanning tree PortFast
Spanning Tree Protocol
spanning tree UplinkFast
speed
setting 10/100 Fast Ethernet port 4-4
SSH 19-7
configuring 19-7
SST 7-14
interoperability 7-17
static route, configuring 26-9
status reports, system 26-22
STP
BPDUs and 7-2
forward delay timer 7-39
hello time 7-39
MAC address allocation 7-13
MAC address reduction
enabling 10-5
maximum age timer 7-39
overview 7-2
PortFast, configuring 8-2
port states 7-5
supervisor engine
configuring 3-1
connecting through console port 2-2
default configuration 3-5
default gateways 3-7
me1 interface 3-6
sc0 interface 3-5
sl0 interface 3-8
software description 1-3
software images overview 1-3
startup configuration 28-1
static routes 26-9
uploading software images 29-5, 29-9
switch acceleration 32-1
switch CLI
accessing 2-2
command aliases 2-7
designating IP addresses 2-8
designating IP aliases 2-8
designating MAC addresses 2-8
designating modules 2-7
designating ports 2-7
designating VLANs 2-7
help 2-4
history substitution 2-5
modes 2-3
operating 2-3
Switched Port Analyzer
switch management interfaces
See me1 interface; sc0 interface; sl0 interface
switch TopN reports
background option 21-2
foreground execution 21-2, 21-3
metric values (table) 21-2
overview 21-1
running 21-3
viewing 21-3
syslog
changing enable state timestamp 33-6
configuring 33-4
configuring daemon 33-7
configuring servers 33-7
default configuration 33-4
displaying configuration 33-8
displaying message log 33-9
facilities (table) 33-2
message format 33-3
overview 33-1
setting buffer size 33-6
setting logging levels 33-5
setting session settings 33-4
severity levels (table) 33-3
syslog servers
configuring 33-7
system clock, setting 26-4
system contact, setting 26-3
system images
downloading using rcp 29-6
downloading using TFTP 29-2
switch
specifying startup 28-1
uploading 29-9
uploading 29-5
system location, setting 26-3
system message logging
changing enable state timestamp 33-6
configuring 33-4
configuring daemon 33-7
configuring syslog daemon 33-7
default configuration 33-4
displaying configuration 33-8
displaying message log 33-9
facilities (table) 33-2
message format 33-3
overview 33-1
setting buffer size 33-6
setting logging levels 33-5
setting session settings 33-4
severity levels (table) 33-3
system name
clearing 26-3
configuring 26-2
overview 26-1
system prompt
configuring 26-2
overview 26-1
system reset
scheduling 26-10
system status report
generating 26-22
T
TACACS+ accounting
accounting events 27-55
configuration guidelines 27-58
creating accounting records 27-55
disabling 27-59
enabling 27-58
overview 27-55
sample configuration 27-61
suppressing accounting 27-57
updating the server 27-57
TACACS+ authentication
configuration guidelines 27-12
default configuration 27-11
disabling 27-23
enabling 27-19
login attempts allowed 27-21
overview 27-3
sample configuration 27-47
timeout interval 27-20
TACACS+ authorization
authorization events 27-48
command authorization 27-49
configuration guidelines 27-50
default configuration 27-50
disabling 27-52
enabling 27-51
fallback options 27-48
overview 27-48
primary options 27-48
sample configuration 27-53
TACACS+ keys
clearing 27-23
specifying 27-20
Telnet
disconnecting user sessions 19-8
executing 19-6
limiting attempts 27-13
monitoring user sessions 19-8
system message logging settings 33-5
text file configuration mode
setting the configuration mode 30-2
TFTP
downloading software images 29-2
uploading configuration files 31-5
uploading software images 29-5
time, setting 26-4
time-exceeded messages 19-12
timers
configuring forward delay 7-39
configuring hello time 7-39
configuring maximum aging time 7-39
login 19-6
time zone
clearing 35-7
setting 35-5
TopN reports
traceroute
traceroute utility, Layer 2 19-11
traffic filtering
IGMP 15-18
transmit queue overview 14-3
troubleshooting
dynamic port VLAN membership 12-11
system message logging and 33-1
VMPS 12-11
trunks
802.1Q restrictions 11-4
allowed VLANs 11-7
autonegotiation 11-2
configuring IEEE 802.1Q 11-6
default configuration 11-5
disabling 11-8
disabling VLAN 1 11-22
encapsulation types
descriptions (table) 11-3
switch support matrix (table) 11-4
modes (table) 11-2
overview 11-1
possible configurations (table) 11-3
sample configurations
Gigabit 11-8
load sharing 11-12
nonnegotiate 11-18
U
UDLD
default configuration 22-2
disabling globally 22-4
disabling on ports 22-4
displaying configuration 22-6
enabling aggressive mode 22-5
enabling globally 22-3
enabling on ports 22-4
hardware requirements 22-2
overview 22-1
software requirements 22-2
specifying message interval 22-5
unclassified frames 14-3
UniDirectional Link Detection
UplinkFast
configuring 8-11
dummy MAC addresses 8-11
multiple spanning tree 7-15
overview 8-10
uploading
configuration files 31-5, 31-7
supervisor 29-9
user sessions
disconnecting 19-8
monitoring 19-8
using IGMP traffic filtering 15-18
V
verifying disabled IGMP multicast filtering 15-20
verifying enabled IGMP multicast filtering 15-19
verifying IGMP filter match-action 15-21, 15-22
verifying multicast filter profiles 15-21
virtual LANs
VLAN-based SPAN
VLAN filtering
trunk 25-4
VLAN Membership Policy Server
VLANs
allowed on trunk 11-7
assigning switch ports to 10-9
configuration guidelines 10-4
default configuration 10-4
deleting 10-11
designating on command line 2-7
in-band (sc0) interface assignment 10-2
IP subnetworks and 10-2
mapping 802.1Q to ISL 10-10
mapping conflicts 7-34
normal range 10-3
overview 10-1
protocol filtering and 18-1
reserved range 10-3
sc0 (in-band) interface assignment 10-2
See also auxiliary VLANs; native VLANs; private VLANs
VLANs, private
VLAN Trunking Protocol
VMPS
administering 12-9
clear VMPS server entries 12-9
clear VMPS statistics 12-9
configuration guidelines 12-3
configuring 12-4
configuring dynamic port membership 12-7
configuring port statistics 12-10
configuring VMPS clients 12-7
configuring VMPS servers 12-7
database 12-4
default configuration 12-2
disabling 12-10
downloading VMPS database 12-10
error messages (table) 12-11
example 12-12
for auxiliary VLANs 12-15
monitoring 12-9
overview 12-1
reconfirm dynamic port assignments 12-9
reconfirming membership 12-9
troubleshooting 12-11
troubleshooting dynamic ports 12-11
VMPS clients
configuring 12-7
VMPS database
creating 12-4
downloading 12-10
example configuration file 12-5
global settings 12-4
MAC addresses 12-5
port groups 12-5
VLAN groups 12-5
VLAN port policies 12-5
VMPS servers
configuring 12-7
VSPAN
overview 25-3
VTP
"off" mode, configuring 9-8
configuration guidelines 9-5
configuring client 9-6
configuring server 9-6
configuring transparent mode 9-7
default configuration 9-5
domains 9-2
monitoring 9-11
overview 9-1
statistics 9-11
VTP advertisements 9-2
VTP modes
client 9-2
off 9-2
server 9-2
transparent 9-2
VTP pruning
configuring 9-9
disabling 9-10
overview 9-3
VTP version 2
disabling 9-9
enabling 9-8
overview 9-3
W
write tech support command 26-22