Configuring The Rapid Pvst+ Bridge Priority Of A Vlan - Cisco nexus 5000 series Configuration Manual

Configuring the Rapid PVST+ Bridge Priority of a VLAN

Command or Action
Step 3
switch(config)# interface type slot/port
Step 4 switch(config-if)# spanning-tree [vlan
vlan-id] cost [value | auto]
This example shows how to configure the access port cost of an Ethernet interface:
switch# configure terminal
switch (config)# spanning-tree pathcost method long
switch (config)# interface ethernet 1/4
switch(config-if)# spanning-tree cost 1000
You can only apply this command to a physical Ethernet interface.
Configuring the Rapid PVST+ Bridge Priority of a VLAN
You can configure the Rapid PVST+ bridge priority of a VLAN.
Be careful when using this configuration. For most situations, we recommend that you configure the
Note
primary root and secondary root to modify the bridge priority.
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# spanning-tree vlan vlan-range priority value
DETAILED STEPS
Command or Action
Step 1 switch# configure terminal
Step 2 switch(config)# spanning-tree vlan
vlan-range priority value
Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1)
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Purpose
Specifies the interface to configure, and enters interface configuration
mode.
Configures the port cost for the LAN interface. The cost value, depending
on the path-cost calculation method, can be as follows:
• short—1 to 65535
• long—1 to 200000000
You configure this parameter per interface on access ports and
Note
per VLAN on trunk ports.
The default is auto , which sets the port cost on both the path-cost
calculation method and the media speed.
Purpose
Enters global configuration mode.
Configures the bridge priority of a VLAN. Valid values are 0, 4096,
8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864, 40960, 45056,
Configuring Rapid PVST+
OL-25842-01