Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

5548 Config Sync issue - Suspended by vPC

I have 2 UCS 6120 fabric interconnects which both have VPCs to 2 x 5548s.  First fabric interconnect uses Po260 & vPC 260 and second fabric interconnect uses Po261 & vPC 261.  I used config sync to add "spanning-tree port type edge trunk" to int po 260 & 261.  The commit worked properly, peers are in sync, etc.  The problem is when I committed the command, int po 260 & 261 on the secondary 5548 went into "suspended by vPC".  I can't figure out why they did this, the configurations are the same and all vPC consistency checks pass.  To fix the issue, all I had to do was bounce the port-channel on the secondary 5548 (shut/no shut) after which it came back online.  I only did this to Po260 so Po261 is still down so that I can troubleshoot further.  Please see below:

vPC domain id                     : 70 
Peer status                       : peer adjacency formed ok     
vPC keep-alive status             : peer is alive                
Configuration consistency status  : success
Per-vlan consistency status       : success                      
Type-2 consistency status         : success
vPC role                          : secondary                    
Number of vPCs configured         : 7  
Peer Gateway                      : Disabled
Dual-active excluded VLANs        : -
Graceful Consistency Check        : Enabled
Auto-recovery status              : Disabled

vPC Peer-link status
---------------------------------------------------------------------
id   Port   Status Active vlans   
--   ----   ------ --------------------------------------------------
1    Po255  up     1,10-13,26-29,151-156,180-181,200,318,331,399-417,       
                   419-422,424-431,433-436,438-443,446-448,450,452-45       
                   3,455-458,460-465,467-471,480-494,498-499,503,602-       
                   633,644-657,659,663-664,698-701,800,805,850-851,89       
                   0-891,899-904,906,908,912-950,952-958,975,987-988,    ....

vPC status
----------------------------------------------------------------------------
id     Port        Status Consistency Reason                     Active vlans
------ ----------- ------ ----------- -------------------------- -----------
171    Po171       up     success     success                    1,10-13,26-
                                                                 29,151-156,
                                                                 180-181,200
                                                                 ,318,331,39
                                                                 9-417,41....
260    Po260       up     success     success                    10-13,26-29
                                                                 ,663-664,89
                                                                 0-891      
261    Po261       down*  success     success                    -

---------------------------

sh int po 261

port-channel261 is down (suspended by vpc)

---------------------------

Any help would be appreciated
 

2 REPLIES
Cisco Employee

Did you check the o/p of 

Did you check the o/p of  show vpc consistency-parameters for the portchannel261?

New Member

Yes, I did check that and all

Yes, I did check that and all parameters match as follows:

 

5548-2# sh vpc consistency-parameters int po 261

    Legend:
        Type 1 : vPC will be suspended in case of mismatch

Name                        Type  Local Value            Peer Value            
-------------               ----  ---------------------- -----------------------
Shut Lan                    1     No                     No                   
STP Port Type               1     Edge Trunk Port        Edge Trunk Port      
STP Port Guard              1     None                   None                 
STP MST Simulate PVST       1     Default                Default              
lag-id                      1     [(7f9b,                [(7f9b,              
                                  0-23-4-ee-be-46, 8105, 0-23-4-ee-be-46, 8105,
                                   0, 0), (8000,          0, 0), (8000,       
                                  0-5-73-d4-d5-fc, 1, 0, 0-5-73-d4-d5-fc, 1, 0,
                                   0)]                    0)]                 
mode                        1     active                 active               
Speed                       1     10 Gb/s                10 Gb/s              
Duplex                      1     full                   full                 
Port Mode                   1     trunk                  trunk                
Native Vlan                 1     10                     10                   
MTU                         1     1500                   1500                 
Admin port mode             1                                                 
Allowed VLANs               -     10-13,26-29,663-664,89 10-13,26-29,663-664,89
                                  0-891                  0-891                
Local suspended VLANs       -     -                      -      

295
Views
0
Helpful
2
Replies
CreatePlease to create content