ExtremeSwitching (EXOS)

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OSPF Init stuck

  • 1.  OSPF Init stuck

    Posted 11-08-2016 10:27
    Hello Community,

    I'm in a odd journey trying to understand what's going on here.
    There are two Extreme switchs connected by 2 10G ports running LACP.

    The master port is UP and the member also is UP and everything is okay with LACP and OSPF between them.
    But if the master port is disabled, the OSPF get stucked into Init state.

    I tried to took off the port from the sharing and tried to solo running the ospf , but it didn't worked.

    The stranger thing here is if that member port is in the sharing group it ran fine, without any loss.

    What should I do? Any advices?

    Thanks 🙂


  • 2.  RE: OSPF Init stuck

    Posted 11-08-2016 10:33
    Hello Julian,

    The issue looks like known bug - https://gtacknowledge.extremenetworks.com/articles/Solution/Local-multicast-traffic-is-not-egressing...

    Best Regards,
    Nikolay


  • 3.  RE: OSPF Init stuck

    Posted 11-08-2016 11:06
    Hey there,

    So I'm using the version 16.1.3.6 16.1.3.6-patch1-11.

    Now the port isn't on the LACP and the OSPF is not getting up.

    Also did the clear igmp command to test but nothing happened.


  • 4.  RE: OSPF Init stuck

    Posted 11-08-2016 11:36
    perhaps it would help to post The relevant parts of the configuration?
    perhaps tracing on both sides to make sure the hello's are seen at the port level then work up the stack from there?
    Of course the GTAC is available as well as the fine folks on the HUB.


  • 5.  RE: OSPF Init stuck

    Posted 11-08-2016 11:47
    Hello Daniel,

    What do you mean about port level? Is there a way to tpcdump that?

    THanks


  • 6.  RE: OSPF Init stuck

    Posted 11-08-2016 12:01
    I would have to leave that to my EXOS teammates to comment on.


  • 7.  RE: OSPF Init stuck

    Posted 11-08-2016 12:35
    Is there any acl on port or vlan where ospf deployed? If yes, try to remove it.


  • 8.  RE: OSPF Init stuck

    Posted 11-08-2016 12:37
    newly vlan create to check that, problem still happening.
    the switch has just one acl but is for another port to meter and shape a customer.


  • 9.  RE: OSPF Init stuck

    Posted 11-08-2016 12:53
    show me pls:

    sh forw conf
    sh conf | i to-cpu



  • 10.  RE: OSPF Init stuck

    Posted 11-08-2016 12:53
    Alexander,

    Somehow the interface was with ipmcforwarding to-cpu off.
    Enabling it solved the problem, thanks!


  • 11.  RE: OSPF Init stuck

    Posted 11-08-2016 12:53
    glad to help you.


  • 12.  RE: OSPF Init stuck

    Posted 11-08-2016 13:09
    Once an hello packet has been received, neighbor state will immediately transition from down to INIT state indicating that the hello packet was received but that the receiving router's ID was not the neighbor hello packet. In this state there is no bidi communication yet.

    Once the router's ID is present in the hello packets, the neighbor state transitions to 2-WAY.
    Check peers configuration accordingly.

    Best Regards,
    Nikolay


  • 13.  RE: OSPF Init stuck

    Posted 11-08-2016 13:09
    I'm receiving the hello from one side, but not for the other side.
    There's a Bidi SFP+ connecting both switch and the ports are up.