- Nexus vPC Terminology
- vPC Peers
- The two switches joined in a vPC domain to complete the vPC architecture.
- Peer Link
- The link between the two peers that syncs state.
- Creates the single logical control plane in regard to port channels.
- Forwards BPDUs and LACP packets from secondary peer to primary peer.
- Syncs IGMP and MAC tables between the two peers.
- Transport between peers for FHRP traffic, orphaned ports, and multicast.
- Most important links in architecture.
- Peer keepalive
- Operates at Layer 3.
- Works behind scenes of Peer link by monitoring whether a peer has gone completely down when there’s a peer link failure.
- Not used for any data syncing.
- Can use management interfaces or OOB.
- Member Port
- Port that is part of a vPC on peer switch.
- Orphan Port
- Port connected to a device that is either not part of a port channel, or part of a port channel that has failed.
- Single port connection.
- vPC Peers
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