VPC on Nexus 5548 showing Error (Connected with Phycial Server)

[jahanzaib amin]

Hello Team,

We are connecting a physical server as dual home with nexus 5548.
(4 Physical Link connected, 2 Links to 1st NK5 and 2Link to other NK5).

We did the following config on both Nexus 5548 Switches and created the same VPC on Both nexus but facing error and VPC in not coming UP. Kindly review the config and help to find out the real issue:

Configuration on 1st Nexus:

N5k-01(config)# sh run int ethernet 1/5-6

!Command: show running-config interface Ethernet1/5-6
interface Ethernet1/5
  switchport mode trunk
  switchport trunk native vlan 17
  channel-group 60 mode active

interface Ethernet1/6
  switchport mode trunk
  switchport trunk native vlan 17
  channel-group 60 mode active

interface port-channel60
  switchport mode trunk
  switchport trunk native vlan 17
  speed 10000
  vpc 60

N5k-02(config)# sh run int ethernet 1/5-6

interface Ethernet1/5
  switchport mode trunk
  switchport trunk native vlan 17
  channel-group 60 mode active

interface Ethernet1/6
  switchport mode trunk
  switchport trunk native vlan 17
  channel-group 60 mode active

interface port-channel60
  switchport mode trunk
  switchport trunk native vlan 17
  speed 10000
  vpc 60

Error on 1st Nexus 5548

N5k-01(config)# sh vpc 60

vPC status
----------------------------------------------------------------------------
id     Port        Status Consistency Reason                     Active vlans
------ ----------- ------ ----------- -------------------------- -----------
60     Po60        up     failed      vpc port channel           1-15,17,21
                                      mis-config due to vpc
                                      links in the 2 switches
                                      connected to different
                                      partners

Error on 1st Nexus 5548

N5K-02# sh vpc 60

vPC status
----------------------------------------------------------------------------
id     Port        Status Consistency Reason                     Active vlans
------ ----------- ------ ----------- -------------------------- -----------
60     Po60        down*  failed      vpc port channel           -
                                      mis-config due to vpc
                                      links in the 2 switches
                                      connected to different
                                      partners

[danrya · Accepted solution]

The error indicates that the cabling is incorrect, or the server is not configured properly.

Basically the switch is seeing a different LACP system ID from the different links.  So, you need to ensure all 4 links on the server side are correctly configured in one bundle, not two.

[Peter Koltl]

Does it happen to be connected to a HP Bladesystem with VirtualConnect? :)

[jahanzaib amin]

Dear danrya,

Yes you are right that was the main issue. thanks for the solution.

JH