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7-2
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
OL-23435-03
Chapter 7 Configuring vPCs
Information About vPCs
Information About vPCs
This section includes the following topics:
• vPC Overview, page 7-2
• vPC Terminology, page 7-5
• vPC Peer Links, page 7-6
• Peer-Keepalive Link and Messages, page 7-11
• vPC Peer-Gateway, page 7-12
• vPC Domain, page 7-13
• vPC Topology, page 7-14
• Compatibility Parameters for vPC Interfaces, page 7-15
• vPC Number, page 7-18
• Moving Other Port Channels into a vPC, page 7-18
• Configuring vPC Peer Links and Links to the Core on a Single Module, page 7-19
• vPC Interactions with Other Features, page 7-20
• Virtualization Support, page 7-27
• vPC Recovery After an Outage, page 7-27
• High Availability, page 7-28
vPC Overview
A virtual port channel (vPC) allows links that are physically connected to two different Cisco Nexus
7000 Series devices to appear as a single port channel by a third device (see Figure 7-1). The third device
can be a switch, server, or any other networking device that supports port channels. A vPC can provide
Layer 2 multipathing, which allows you to create redundancy and increase bisectional bandwidth by
enabling multiple parallel paths between nodes and allowing load balancing traffic.
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