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Config-Sync issue on Nexus 5k

Hi All,

 

I have an issue on a client topology with two Nexus 5k. We are running a Dual-homed FEX topology with Config-sync on Nexus 5k only used for L2 purpose.

 

We had no problem until we changed the mgmt0 interface IP address on both Nexus switches. Now we have an unexpected behaviour with a message : Peer not reachable on N5K-1.

 

The ping is ok between the IP of the two Nexus switches, the mgmt0 interface is on the same management switch in the same VLAN (ID 2), CFS for IPv4 are active and I have deactivated IGMP Snooping on VLAN 2 on the management switch to avoid troubles about Multicast flows.

 

If anyone has encountered such this issue, just tell me...

 

The logs on the different switches :

N5K-1:

`show switch-profile status`

switch-profile  : dec
----------------------------------------------------------

Start-time: 531532 usecs after Fri Sep  5 14:54:10 2014
End-time:  84326 usecs after Fri Sep  5 14:54:11 2014

Profile-Revision: 102
Session-type: Verify
Session-subtype: -
Peer-triggered: Yes
Profile-status: Sync Success

Local information:
----------------
Status: Verify Success
Error(s): 

Peer information:
----------------
IP-address: 10.247.2.5
Sync-status: Not yet merged
Merge Flags: pending_merge:1 rcv_merge:1 pending_validate:0
Status: Verify Success
Error(s): 

 

N5K-2 :

`show switch-profile status`

switch-profile  : dec
----------------------------------------------------------

Start-time: 418071 usecs after Fri Sep  5 14:54:10 2014
End-time:    748 usecs after Fri Sep  5 14:54:11 2014

Profile-Revision: 84
Session-type: Verify
Session-subtype: -
Peer-triggered: No
Profile-status: Sync Success

Local information:
----------------
Status: Verify Success
Error(s): 

Peer information:
----------------
IP-address: 10.247.2.4
Sync-status: Not yet merged
Merge Flags: pending_merge:0 rcv_merge:0 pending_validate:0
Status: Verify Success
Error(s): 

 

Thanks !!

Pierre-Louis

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