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HPE 5710 switches IRF stacking issue

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  • 1.  HPE 5710 switches IRF stacking issue

    Posted Nov 14, 2019 08:33 AM

    Hi, we have a client which has two 5710 switches  IRF stack. We can  not understand why IRF stopped forwarding traffic for ~2 min when  IRF stack active member was shutdown and after few minutes was turned back to power.

    Standby member  took active member role, when active member went down and, but problem occurs when old active member tries to come back. Do we have active-active situation and we need to set up MAD BFD ir MAD LACP or MAD ARP? Or this is not the case?

    MAC persistent always is turned on.

     

     

     



  • 2.  RE: HPE 5710 switches IRF stacking issue

    Posted Nov 14, 2019 09:18 AM

    Deploying a Multi Active Detection (MAD) mechanism on a IRF is always a good practice.

     

    Could you share your IRF's sanitized configuration?



  • 3.  RE: HPE 5710 switches IRF stacking issue

    Posted Nov 14, 2019 10:37 AM

    Done that, did not help, used BFD MAD over direct VLAN



  • 4.  RE: HPE 5710 switches IRF stacking issue

    Posted Nov 14, 2019 11:06 AM

    A good reason to share your sanitized IRF configuration. Could you share it?



  • 5.  RE: HPE 5710 switches IRF stacking issue

    Posted Nov 14, 2019 11:36 AM

    Hi here is all configuration,
    system-working-mode standard

    #
    irf mac-address persistent always
    irf auto-update enable
    undo irf link-delay
    irf member 1 priority 32
    irf member 2 priority 1


    interface Ten-GigabitEthernet1/0/2
    port link-mode bridge
    port access vlan 4000
    undo stp enable

    interface Ten-GigabitEthernet2/0/2
    port link-mode bridge
    port access vlan 4000
    undo stp enable


    interface Vlan-interface4000
    mad bfd enable
    mad ip address 1.1.1.1 255.255.255.252 member 1
    mad ip address 1.1.1.2 255.255.255.252 member 2

    irf-port global load-sharing mode destination-ip source-ip



  • 6.  RE: HPE 5710 switches IRF stacking issue
    Best Answer

    Posted Dec 16, 2019 01:53 PM

    Problem was with Fortigate firewall. We had  to increase Fortigate LACP timer value.