Service Manual

changes. However, if a standards-based flush mechanism is needed, you can turn this knob command on to enable
flushing MAC addresses after receiving every topology change notification.
vlan bridge-priority
Set the PVST+ bridge-priority for a VLAN or a set of VLANs.
Syntax
vlan vlan-id bridge-priority value
To return to the default value, use the no vlan bridge-priority command.
Parameters
vlan vlan-range Enter the keyword vlan then the VLAN numbers. The range is from 1 to 4094.
bridge-priority value Enter the keywords bridge-priority then the bridge priority value in increments of
4096. The range is from 0 to 61440. The default is 32768.
Defaults 32768
Command Modes CONFIGURATION (conf-pvst)
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Related Commands
vlan forward-delay — changes the time interval before the system transitions to the Forwarding state.
vlan hello-time — change the time interval between BPDUs.
vlan max-age — changes the time interval before PVST+ refreshes.
show spanning-tree pvst — displays the PVST+ configuration.
vlan forward-delay
Set the amount of time the interface waits in the Listening state and the Learning state before transitioning to the Forwarding state.
Syntax
vlan vlan-id forward-delay seconds
To return to the default setting, use the no vlan forward-delay command.
Parameters
vlan vlan-range Enter the keyword vlan then the VLAN numbers. The range is from 1 to 4094.
forward-delay
seconds
Enter the keywords forward-delay then the time interval, in seconds, that the
system waits before transitioning PVST+ to the forwarding state. The range is from 4 to
30 seconds. The default is 15 seconds.
Defaults 15 seconds
Command Modes CONFIGURATION (conf-pvst)
994 Per-VLAN Spanning Tree Plus (PVST+)