Nexus 7000
Nexus 5000
Nexus 2000
- The Nexus 2000 cannot run spanning-tree; all host ports are edge. Any host facing connected switches such as IBM ESM must have BPDUfilter enabled.
vPC
- You cannot have a vPC between a non F2 I/O module and a F2 module. You will see a 'F2 VDC support mismatch' error.
- Always use the 'peer-gateway' command in the vPC domain. This will prevent issues with endpoints that reply back to the source MAC instead of the virtual system vPC MAC (NetApp, EMC, F5...)
- The system priority for LACP should be made lower than the default of 32768 for the Nexus switches. If more than one Nexus, they should be the same value.
- The Cisco recommended practice for order of configuration is as follows:
- Enable vPC feature
- Create the vPC domain
- Configure the vPC peer keepalive
- Configure the system and role priorities. Add the peer-gateway command
- Create the vPC peer link
Complete one switch before moving to the second switch
- Configure the port-channel
- Add the port-channel to the interfaces
- Add the vPC to the port-channel
