06-13-2013 06:21 AM - edited 03-07-2019 01:52 PM
Hi
I am unable to make the vPC peer link up between N7K. The consistency seems fine between the two N7K.
When I shut and no shut the vpc peer link, the vpc links come alive for very short period (==3 sec) and then go down again with following log in red.
%VPC-3-VPC_PEER_LINK_BRINGUP_FAILED: vPC peer-link bringup failed (vPC peer is not reachable over cfs)
%ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 2100-2101,2104-2149,2200-2249 on Interface port-channel10 are being suspended. (Reason: vPC peer is not reachable over cfs)
Sh vpc below
gw01-vdc01(config)# sh vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 10
vPC+ switch id : 112
Peer status : peer link is down
vPC keep-alive status : peer is alive
vPC fabricpath status : peer is reachable through fabricpath
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 0
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Disabled
Fabricpath load balancing : Disabled
Port Channel Limit : limit to 244
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po10 down -
gw01-vdc01(config-if)# sh running-config vpc all
!Command: show running-config vpc all
!Time: Thu Jun 13 14:59:56 2013
version 6.1(3)
feature vpc
logging level vpc 5
vpc domain 10
role priority 32667
system-priority 32667
peer-keepalive destination 172.18.10.5 source 172.18.11.5 udp-port 3200 vrf management interval 1000 timeout 5 precedence 6 hold-timeout 3
delay restore 30
no dual-active exclude interface-vlan
no peer-gateway
no Layer3 peer
graceful consistency-check
no auto-recovery
delay restore interface-vlan 10
fabricpath switch-id 112
no fabricpath multicast load-balance
port-channel limit
interface port-channel10
vpc peer-link
Can some expert help me in this.
Thanks
//Umair
Solved! Go to Solution.
06-13-2013 09:34 AM
May I please see the VPC configuration on both switches?
06-14-2013 03:24 AM
ASAK Syed,
Glad to hear that. As you got the solution can you mark this post as answered so that others may be benifited with this in future rather than leaving this thread as unanswered?
Thanks in advance.
Regards
Inayath
*Plz rate all usefull posts and mark the thread as closed if answerd your query.
06-13-2013 09:34 AM
May I please see the VPC configuration on both switches?
06-13-2013 01:00 PM
Hi Kyle,
Its exactly the same except the keep-alive IP addresses are just reverse. Anyway I can update you tommorow.
Regards,
Umair
06-13-2013 07:29 PM
Hi,
Few things to check:
1- Management interfaces up? Able to ping mgmt-ip address from devices respectively.
2- STP issue?
3- show fcs peers ( to see cdf recognized the local and remote)?
4- did you try reloading the devices?
5- Outputs required: show ver, show vpc brief, show vpc in-consistency check, show ip int br, ping result of mgmt-interface, show spanning tree, sh fcs peers.
HTH
Regards
Inayath
*Plz rate all usefull posts.
06-14-2013 12:21 AM
Hi
Actually it was an issue in the switch ids. Switch ID conflict with the other pair of leaf switches. Unfortunately it was not visible on the sh logging, which i think it should . Anyway the issue is resolved by changing switch id.
The following command helped me identifying the problem and the output below
gw01-vdc01# sh system internal vpcm event-history errors
8) Event:E_DEBUG, length:106, at 309237 usecs after Fri Jun 14 09:00:09 2013
[102] Failed to registerfabricpath switch id (peer-link,1). Err: ES switch-id n
ot available for allocation
Regards,
Umair
06-14-2013 03:24 AM
ASAK Syed,
Glad to hear that. As you got the solution can you mark this post as answered so that others may be benifited with this in future rather than leaving this thread as unanswered?
Thanks in advance.
Regards
Inayath
*Plz rate all usefull posts and mark the thread as closed if answerd your query.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide