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SRX 5600 cluster fab Links Monitor down

  • 1.  SRX 5600 cluster fab Links Monitor down

    This message was posted by a user wishing to remain anonymous
    Posted 02-14-2024 09:22
    This message was posted by a user wishing to remain anonymous

    Dear community

    we are creating a chassis cluster running x2 SRX5600  with dual control and fab links. Ctrl links are 10G and fab links are 40G(line card IOC4 MRATE). These 4 physicals links are connected directly between both nodes. While the control links are up the fab links are Up/down, being monitoring down.

    We see that the fab physical  links only have outgoing packets and 0 packets from incoming traffic from node01 point of view.

    admin@node01> show chassis cluster data-plane interfaces     
    fab0:

        Name               Status      
                           (Physical/Monitored)
        et-1/0/3           Up   / Down      
        et-1/1/3           Up   / Down      
    fab1:

        Name               Status      
                           (Physical/Monitored)
        et-7/0/3           Up   / Down      
        et-7/1/3           Up   / Down      

    {primary:node0}

    admin@node01> show chassis cluster interfaces 
    Control link status: Up

    Control interfaces: 
        Index   Interface   Monitored-Status   Internal-SA   Security
        0       ixlv0       Up                 Disabled      Disabled  
        1       igb0        Up                 Disabled      Disabled  

    Fabric link status: Down

    Fabric interfaces: 
        Name    Child-interface    Status                    Security
                                   (Physical/Monitored)
        fab0    et-1/0/3           Up   / Down               Disabled   
        fab0    et-1/1/3           Up   / Down               Disabled   
        fab1    et-7/0/3           Up   / Down               Disabled   
        fab1    et-7/1/3           Up   / Down               Disabled   

    Redundant-ethernet Information:     
        Name         Status      Redundancy-group
        reth0        Up          1                
       
    Redundant-pseudo-interface Information:
        Name         Status      Redundancy-group
        lo0          Up          0                

    Interface Monitoring:
        Interface         Weight    Status                    Redundancy-group
                                    (Physical/Monitored)
        et-7/1/2          255       Up  /  Up                 1   
        et-1/1/2          255       Up  /  Up                 1   
        et-7/0/2          255       Up  /  Up                 1   
        et-1/0/2          255       Up  /  Up                 1   

    FAB INTERFACES TRAFFIC

    {primary:node0}
    admin@node01> show interfaces et-1/0/3 statistics | match packets 
        Input packets : 7666
        Output packets: 0

    {primary:node0}
    admin@node01> show interfaces et-7/0/3 statistics | match packets    
        Input packets : 0
        Output packets: 7647

    {primary:node0}
    admin@node01> show interfaces et-1/1/3 statistics | match packets    
        Input packets : 0
        Output packets: 0

    {primary:node0}
    admin@node01> show interfaces et-7/1/3 statistics | match packets    
        Input packets : 0
        Output packets: 0

    Any possible reason about this behavior?

    Thanks in advance