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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 1 Configuring Rapid PVST+
Configuring Rapid PVST+
Configuring the Rapid PVST+ Hello Time for a VLAN
You can configure the Rapid PVST+ hello time for a VLAN.
Note Be careful when using this configuration. For most situations, we recommend that you configure the
primary root and secondary root to modify the hello time.
To configure the hello time for a VLAN in Rapid PVST+, perform this task:
This example shows how to configure the hello time for VLAN 5 to 7 seconds:
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+. To configure the
forward delay time per VLAN, perform this task:
This example shows how to configure the forward delay time for VLAN 5 to 21 seconds:
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+. To configure the
maximum age time for a VLAN in Rapid PVST+, perform this task:
Command Purpose
Step 1
switch# configure terminal
Enters configuration mode.
Step 2
switch(config)# spanning-tree vlan
vlan-range hello-time value
Configures the hello time of a VLAN. The hello time
value can be from 1 to 10 seconds, and the default is 2
seconds.
Command Purpose
Step 1
switch# configure terminal
Enters configuration mode.
Step 2
switch(config)# spanning-tree vlan
vlan-range forward-time value
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.
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