Cisco N7K-C7010 Configuration Guide - Page 257

Chapter 7 Configuring vPCs Configuring vPCs Send document comments to [email protected] 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 Step 1 Command configure terminal Purpose Enters global configuration mode. Step 2 Example: switch# configure terminal switch(config)# spanning-tree pseudo-information Configures the spanning tree pseudo information. Step 3 Step 4 Example: switch(config)# spanning-tree pseudo-information switch(config-pseudo)# vlan vlan-id designated priority priority Example: switch(config-pseudo)# vlan 1 designated priority 8192 vlan vlan-id root priority priority Example: switch(config-pseudo)# vlan 1 root priority 4096 Configures the designated bridge priority of the VLAN. Valid values are multiples of 4096 from 0 to 61440. Configures the root bridge priority of the VLAN. Valid values are multiples of 4096 from 0 to 61440. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 7-55