Cisco:No traffic after No shut member in NPV to NPIV san-port-channel

           

   Article Number:     499417                                   Article Version: 3     Article Type:    Break Fix 
   

 


Product:

 

Connectrix MDS-Series Firmware 6.X

 

Issue:

 

 

Symptom:   
   
    After adding a member to an fport (NPV to NPIV) san-port-channel, the traffic stops flowing over the san-port-channel.   
   
    When the problem is hit, MAC entry for the san-port-channel is getting deleted due to which the packets are not getting forwarded on N6K/N5K    
   
    Example:   

N56128# show platform fwm info hw-stm | i San-po11.2      8c60.4f86.1fa7   San-po1        1:2100:0  0:0:1   2.a.bc.0.0.1c (e:0)    
   
    (San-po1 is case sensitive)   
    When san-port-channel line is missing there will be no traffic flow across the san-port-channel.                                                           

 

 

Cause:

 

 

N6K/N56K No traffic after No shut member in NPV to NPIV san-port-channel   
    CSCvd90219
                                                           

 

 

Change:

 

 

Member of NPiV/NPV was shut                                                           

 

 

Resolution:

 

 

Fix:   
    Future code version 7.3(2)N1(1) on n5K   
   
    Workaround:   
    If the problem is already happening, then shut, no shut the port-channel from the NPIV switch.   
    To prevent the problem from happening, configure fibre channel oxid load balancing with the following command.   

configport-channel load-balance ethernet source-dest-portshow port-channel load-balancePort Channel Load-Balancing Configuration:System: source-dest-portPort Channel Load-Balancing Addresses Used Per-Protocol:Non-IP: source-dest-macIP: source-dest-port source-dest-ip source-dest-mac    
   
    The command is non-disruptive.