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Cisco Catalyst 4500 Series Software Configuration Guide

Cisco Catalyst 4500 Series
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23-18
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 23 Configuring STP and MST
Configuring STP
To configure the spanning tree hello time of a VLAN, perform this task:
This example shows how to configure the hello time for VLAN 200 to 7 seconds:
Switch# configure terminal
Switch(config)# spanning-tree vlan 200 hello-time 7
Switch(config)# end
Switch#
This example shows how to verify the configuration:
Switch# show spanning-tree vlan 200 bridge brief
Hello Max Fwd
Vlan Bridge ID Time Age Delay Protocol
---------------- -------------------- ---- ---- ----- --------
VLAN200 49152 0050.3e8d.64c8 7 20 15 ieee
Switch#
Configuring the Maximum Aging Time for a VLAN
Note Exercise care when configuring aging time. In most cases, we recommend that you use the
spanning-tree vlan vlan_ID root primary and the spanning-tree vlan vlan_ID root secondary
commands to modify the maximum aging time.
To configure the spanning tree maximum aging time for a VLAN, perform this task:
This example shows how to configure the maximum aging time for VLAN 200 to 36 seconds:
Switch# configure terminal
Switch(config)# spanning-tree vlan 200 max-age 36
Switch(config)# end
Switch#
Command Purpose
Step 1
Switch(config)# [no] spanning-tree vlan vlan_ID
hello-time hello_time
Configures the hello time of a VLAN. The hello_time
value can be from 1 to 10 seconds.
Use the no keyword to restore the defaults.
Step 2
Switch(config)# end
Exits configuration mode.
Step 3
Switch# show spanning-tree vlan vlan_ID bridge
[brief]
Verifies the configuration.
Command Purpose
Step 1
Switch(config)# [no] spanning-tree vlan vlan_ID
max-age max_age
Configures the maximum aging time of a VLAN. The
max_age value can be from 6 to 40 seconds.
Use the no keyword to restore the defaults.
Step 2
Switch(config)# end
Exits configuration mode.
Step 3
Switch# show spanning-tree vlan vlan_ID bridge
[brief]
Verifies the configuration.

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Cisco Catalyst 4500 Series Specifications

General IconGeneral
SeriesCatalyst 4500 Series
CategorySwitch
Layer SupportLayer 2, Layer 3
Form FactorModular chassis
StackableNo
Chassis Slots3, 6, 7, 10
Power Supply OptionsAC, DC
RedundancyPower supply, Supervisor engine
Network ManagementCisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
FeaturesSecurity, QoS
Port DensityUp to 384 ports per chassis
Security Features802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine8-E

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