Cisco Cisco Nexus 7000 F1-Series 32-Port 1 and 10 Gigabit Ethernet Module Technical Manual

Page of 8
vPC Layer 3 Backup Routing with F1 and
Peer−Gateway
Document ID: 116740
Contributed by Andy Gossett, Cisco TAC Engineer.
Dec 16, 2013
Contents
Introduction
Prerequisites
     Requirements
     Components Used
Configure
     Network Diagram
     Peer−Gateway Overview
     vPC L3 Backup Routing with F1 and Peer−Gateway
     Peer−Gateway Exclude VLAN
Verify
Troubleshoot
Introduction
This document describes Layer 3 (L3) backup routing in a virtual port channel (vPC) setup. Cisco
recommends that you use the peer−gateway exclude−vlan command when you use F1 modules on the
peer−link.
Note: If the vPC peer link is configured on a Cisco Nexus 32−port 1/10 Gigabit Ethernet (F1−Series) module
(N7K−F132XP−15), you must include the L3 backup routing VLAN in the VLAN list specified by the
peer−gateway exclude−vlan command.
See Cisco Nexus 7000 Series NX−OS Release Notes, Release 5.1: New Software Features: Layer 3 Backup
Routing VLAN for details on the new peer−gateway exclude−vlan command.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
The information in this document is based on these software and hardware versions:
Cisco Nexus 7000 Series Switch, Release 5.1(3) and later
• 
Mixed chassis with M1 and F1 line cards
• 
The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure