Cisco Nexus 5000 Series Switch CLI Software Configuration Guide (OL-16597-01, July 2009)

Procedure
PurposeCommand or Action
Enters configuration mode.switch# configure terminal
Step 1
Configures the hello time of a VLAN. The hello
time value can be from 1 to 10 seconds. The
default is 2 seconds.
switch(config)# spanning-tree vlan
vlan-range hello-time hello-time
Step 2
This example shows how to configure the hello time for a VLAN:
switch# configure terminal
switch(config)# spanning-tree vlan 5 hello-time 7
Configuring the Rapid PVST+ Forward Delay Time for a VLAN
You can configure the forward delay time per VLAN when using Rapid PVST+.
Procedure
PurposeCommand or Action
Enters configuration mode.switch# configure terminal
Step 1
Configures the forward delay time of a VLAN. The
forward delay time value can be from 4 to 30
seconds, and the default is 15 seconds.
switch(config)# spanning-tree vlan
vlan-range forward-time forward-time
Step 2
This example shows how to configure the forward delay time for a VLAN:
switch# configure terminal
switch(config)# spanning-tree vlan 5 forward-time 21
Configuring the Rapid PVST+ Maximum Age Time for a VLAN
You can configure the maximum age time per VLAN when using Rapid PVST+.
Procedure
PurposeCommand or Action
Enters configuration mode.switch# configure terminal
Step 1
Configures the maximum aging time of a VLAN.
The maximum aging time value can be from 6 to 40
seconds, and the default is 20 seconds.
switch(config)# spanning-tree vlan
vlan-range max-age max-age
Step 2
This example shows how to configure the maximum aging time for a VLAN:
switch# configure terminal
switch(config)# spanning-tree vlan 5 max-age 36
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01 171
Configuring Rapid PVST+
Configuring the Rapid PVST+ Forward Delay Time for a VLAN