Users Guide

Supported
Releases
10.2.0E or later
spanning-tree vlan priority
Sets the priority value for Rapid-PVST.
Syntax
spanning-tree vlan vlan-id priority priority value
Parameters priority priority value — Enter a bridge-priority value in increments of 4096, from 0 to 61440.
Valid priority values are: 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864, 40960,
45056, 49152, 53248, 57344, and 61440. All other values are rejected.
Default 32768
Command Mode CONFIGURATION
Usage
Information
The Rapid-PVST protocol determines the root bridge. Assign one bridge a lower priority to increase the
probability of it being the root bridge. A lower priority value increases the probability of the bridge
becoming a root bridge.
Example
OS10(config)# spanning-tree vlan 10 priority 0
Supported
Releases
10.2.0E or later
spanning-tree vlan priority (Interface)
Sets an interface priority when two bridges compete for position as the root bridge.
Syntax
spanning-tree vlan vlan-id priority value
Parameters value — Enter a priority value in the increments of 16, from 0 to 240.
Default 128
Command Mode INTERFACE
Usage
Information
Identifies the interface to be placed into the forwarding mode when resolving a loop. Ports with lower
numerical priority values have higher precedence.
Example
OS10(conf-if-eth1/1/4)# spanning-tree vlan 10 priority 16
Supported
Releases
10.2.0E or later
spanning-tree vlan root
Designates a device as the primary or secondary root bridge.
Syntax
spanning-tree vlan vlan-id root {primary | secondary}
Parameters
● vlan-id — Enter a VLAN ID number, from 1 to 4093.
● root — Designate the bridge as the primary or secondary root.
● primary — Designate the bridge as the primary or root bridge.
● secondary — Designate the bridge as the secondary or secondary root bridge.
Default Not configured
Command Mode CONFIGURATION
Usage
Information
None
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