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interface Ethernet1/31
switchport access vlan 123
interface Vlan123
vrf member vpc_keepalive
ip address 123.1.1.2/30
no shutdown
vpc domain 1
peer-keepalive destination 123.1.1.1 source 123.1.1.2 vrf
vpc_keepalive
L3-NEXUS-2# sh vpc peer-keepalive
vPC keep-alive status : peer is alive
--Peer is alive for : (154477) seconds, (908) msec
--Send status : Success
--Last send at : 2011.01.14 19:02:50 100 ms
--Sent on interface : Vlan123
--Receive status : Success
--Last receive at : 2011.01.14 19:02:50 103 ms
--Received on interface : Vlan123
--Last update from peer : (0) seconds, (524) msec
vPC Keep-alive parameters
--Destination : 123.1.1.1
--Keepalive interval : 1000 msec
--Keepalive timeout : 5 seconds
--Keepalive hold timeout : 3 seconds
--Keepalive vrf : vpc_keepalive
--Keepalive udp port : 3200
--Keepalive tos : 192
The services provided by the switch , such as ping, ssh, telnet,
radius, are VRF aware. The VRF name need to be configured or
specified in order for the correct routing table to be used.
L3-NEXUS-2# ping 123.1.1.1 vrf vpc_keepalive
PING 123.1.1.1 (123.1.1.1): 56 data bytes
64 bytes from 123.1.1.1: icmp_seq=0 ttl=254 time=3.234 ms
64 bytes from 123.1.1.1: icmp_seq=1 ttl=254 time=4.931 ms
64 bytes from 123.1.1.1: icmp_seq=2 ttl=254 time=4.965 ms
64 bytes from 123.1.1.1: icmp_seq=3 ttl=254 time=4.971 ms
64 bytes from 123.1.1.1: icmp_seq=4 ttl=254 time=4.915 ms
--- 123.1.1.1 ping statistics ---
5 packets transmitted, 5 packets received, 0.00% packet loss
round-trip min/avg/max = 3.234/4.603/4.971 ms
Creating a vPC Peer Link
You can create a vPC peer link by designating the EtherChannel that you want on each switch as the peer link
for the specified vPC domain. We recommend that you configure the EtherChannels that you are designating
as the vPC peer link in trunk mode and that you use two ports on separate modules on each vPC peer switch
for redundancy.
Before You Begin
Ensure that you have enabled the vPC feature.
You must configure both switches on either side of the vPC peer link with the following procedures
Cisco Nexus 5000 Series NX-OS Interfaces Configuration Guide, Release 5.2(1)N1(1)
84 78-26881-OL
Configuring Virtual Port Channels
Creating a vPC Peer Link