vPC system-mac issue

[Saeedullah Khan]

Hi,

I am going to configure vPC on nexus 5548 model and initially, i have successfully configured the keepalive and pinging but when checking the command.

N5k-Primary(config)# feature vpc

N5k-Primary(config)# vpc domain 1

N5k-Primary(config-vpc-domain)# show vpc role

vPC Role status
----------------------------------------------------
vPC role : none established
Dual Active Detection Status : 0
vPC system-mac : 00:00:00:00:00:00
vPC system-priority : 32667
vPC local system-mac : 00:2a:6a:8f:78:81
vPC local role-priority : 0
NK-Primary(config-vpc-domain)#

My concern about vPC system-mac which is nothing showing.

What should i do? should i follow the next commands and then check?

Waiting for quick reply.

Regards

[MHM Cisco World]

vPC system-mac : 00:00:00:00:00:00 <<- this used by both NSK so it appear after vPC success 

show vpc brief <<- I need to see this 

[Saeedullah Khan]

Listen, i have not yet successfully configured the others vpc commands but here is the output.

NK-Primary# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link

vPC domain id : 1
Peer status : peer link not configured
vPC keep-alive status : Disabled
Configuration consistency status: failed
Per-vlan consistency status : failed
Configuration consistency reason: vPC peer-link does not exist
Type-2 consistency status : failed
Type-2 consistency reason : vPC peer-link does not exist
vPC role : none established
Number of vPCs configured : 0
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Disabled (due to peer configuration)
NK-Primary#

[MHM Cisco World]

peer-link not config and keep-alive is disabled 
sure that why the mac address of vPC is not appear 
vPC role : none established
Dual Active Detection Status : 0
vPC system-mac : 00:00:00:00:00:00 <-this MAC use by both NSK it shared and it appear when vPC success 
vPC system-priority : 32667
vPC local system-mac : 00:2a:6a:8f:78:81 <- this MAC address of NSK 
vPC local role-priority : 0

so there is no problem only complete the config and this MAC address will appear automatic after vPC is success 

[MHM Cisco World]

after vPC is success the mac appear, so no problem at all, only complete the config 
config peer-link 
keep-alive 

[Flavio Miranda]

Hi

 It should be created automatically but you can also put a mac address there by using the command

   system-mac < MAC >  inside vPC domain

https://www.dclessons.com/vpc-configuration-best-practices

[Saeedullah Khan]

I have configured the mac manually but cant see the result. i have noticed one thing about the versions which is not identical. please correct me is this the issue?

vPC local system-mac : 54:7f:ee:bf:7a:81

vPC local system-mac : 00:2a:6a:8f:78:81

Hardware
cisco Nexus5548 Chassis ("O2 32X10GE/Modular Universal Platform Supervisor")
Intel(R) Xeon(R) CPU with 8299528 kB of memory.
Processor Board ID FOC17475V6W

Device name: NK-Primary
bootflash: 2007040 kB

Kernel uptime is 0 day(s), 2 hour(s), 4 minute(s), 12 second(s)

Last reset at 940670 usecs after Wed May 24 12:34:36 2017

Reason: Reset Requested by CLI command reload
System version: 5.0(3)N2(1)

Hardware
cisco Nexus5548 Chassis ("O2 32X10GE/Modular Supervisor")
Intel(R) Xeon(R) CPU with 8263880 kB of memory.
Processor Board ID FOC16292FRW

Device name: NK-Secondary
bootflash: 2007040 kB

Kernel uptime is 0 day(s), 2 hour(s), 4 minute(s), 0 second(s)

Last reset at 81719 usecs after Mon Sep 30 08:09:10 2019

Reason: Reset Requested by CLI command reload
System version: 5.1(3)N1(1a)
Service: