Cisco 7206 - VXR Router User Manual

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7-55
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
OL-23435-03
Chapter 7 Configuring vPCs
Configuring vPCs
Configuring a Hybrid vPC Peer Switch Topology
You can configure a hybrid vPC and non-vPC peer switch topology by using the spanning-tree
pseudo-information command (see the Cisco Nexus 7000 Series NX-OS Layer 2 Switching Command
Reference, Release 5.x.) to change the designated bridge ID so that it meets the STP VLAN-based
load-balancing criteria and then change the root bridge ID priority to a value that is better than the best
bridge priority. You then enable the peer switch.
BEFORE YOU BEGIN
Ensure that you have enabled the vPC feature.
Ensure that you are in the correct VDC (or use the switchto vdc command).
SUMMARY STEPS
1. configure terminal
2. spanning-tree pseudo-information
3. vlan vlan-range designated priority value
4. vlan vlan-range root priority value
5. vpc domain domain-id
6. peer-switch
7. exit
8. (Optional) show spanning-tree summary
9. (Optional) opy running-config startup-config
DETAILED STEPS
Command Purpose
Step 1
configure terminal
Example:
switch# configure terminal
switch(config)#
Enters global configuration mode.
Step 2
spanning-tree pseudo-information
Example:
switch(config)# spanning-tree
pseudo-information
switch(config-pseudo)#
Configures the spanning tree pseudo information.
Step 3
vlan vlan-id designated priority priority
Example:
switch(config-pseudo)# vlan 1 designated
priority 8192
Configures the designated bridge priority of the
VLAN. Valid values are multiples of 4096 from 0 to
61440.
Step 4
vlan vlan-id root priority priority
Example:
switch(config-pseudo)# vlan 1 root
priority 4096
Configures the root bridge priority of the VLAN.
Valid values are multiples of 4096 from 0 to 61440.

Cisco 7206 - VXR Router Specifications

General

Brand	Cisco
Model	7206 - VXR Router
Category	Network Router
Language	English