Cisco Nexus 5000 Series Nx-Os Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1 - Cisco nexus 5000 series Configuration Manual

Configuring Virtual Port Channels
these messages. The system cannot bring up the vPC peer link unless the peer-keepalive link is already up
and running.
Ensure that both the source and destination IP addresses used for the peer-keepalive message are unique in
your network and these IP addresses are reachable from the Virtual Routing and Forwarding (VRF) instance
associated with the vPC peer-keepalive link.
We recommend that you configure a separate VRF instance and put a Layer 3 port from each vPC peer
Note
switch into that VRF instance for the vPC peer-keepalive link. Do not use the peer link itself to send vPC
peer-keepalive messages. For information on creating and configuring VRFs, see the Unicast Routing
Configuration Guide for your device.
Before You Begin
Ensure that you have enabled the vPC feature.
You must configure the vPC peer-keepalive link before the system can form the vPC peer link.
You must configure both switches on either side of the vPC peer link.
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# vpc domain domain-id
3. switch(config-vpc-domain)# peer-keepalive destination ipaddress [hold-timeout secs | interval msecs
{timeout secs} | precedence {prec-value | network | internet | critical | flash-override | flash | immediate
priority | routine} | tos {tos-value | max-reliability | max-throughput | min-delay | min-monetary-cost
| normal} | tos-byte tos-byte-value} | source ipaddress | vrf {name | management vpc-keepalive}]
4. (Optional) switch(config-vpc-domain)# vpc peer-keepalive destination ipaddress source ipaddress
5. (Optional) switch# show vpc peer-keepalive
6. (Optional) switch# copy running-config startup-config
DETAILED STEPS
Command or Action
Step 1
switch# configure terminal
Step 2
switch(config)# vpc domain domain-id
Step 3 switch(config-vpc-domain)# peer-keepalive destination
ipaddress [hold-timeout secs | interval msecs {timeout
secs} | precedence {prec-value | network | internet |
critical | flash-override | flash | immediate priority |
routine} | tos {tos-value | max-reliability |
max-throughput | min-delay | min-monetary-cost |
normal} | tos-byte tos-byte-value} | source ipaddress |
vrf {name | management vpc-keepalive}]
OL-25842-01

Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1)

Configuring a vPC Keepalive Link and Messages
Purpose
Enters global configuration mode.
Creates a vPC domain on the switch if it does not already
exist, and enters the vpc-domain configuration mode.
Configures the IPv4 address for the remote end of the vPC
peer-keepalive link.
The system does not form the vPC peer link until
Note
you configure a vPC peer-keepalive link.
The management ports and VRF are the defaults.
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