Brocade Fibre Channel Networking Community

Expand all | Collapse all

Disable Trunk Port option

  • 1.  Disable Trunk Port option

    Posted 05-09-2016 02:32 AM


    can i disable the trunk option (portcfgtrunkport) on an aktiv access Port, not being used as ISL, without impact to the connected host system?


    Thank you



    Brocade 5300
    FOS v6.4.3b ( i know it´s very old. It will be updated next week).


  • 2.  Re: Disable Trunk Port option

    Posted 05-12-2016 04:07 AM
    Hello Thorsten, As described in the help, whe the command is executed to update the trunking configuration, the port is disabled and reenabled during the change , but i have done this in F-Port (not ISL) logged in the fabric, (but unzoned) and I was not enabled to see any changes in the portlog that indicates a disable in the port.

  • 3.  Re: Disable Trunk Port option

    Posted 05-12-2016 05:41 AM

    Hi anovelli,


    thank you for your answer.


    I tried the configuration change on an aktiv F-Port. I couldn't see any problems on the connected Serversystem and there are no changes in the portlog too.

    So, now i will disable the trunk port option on all F-Ports.


    Thank you



  • 4.  Re: Disable Trunk Port option

    Posted 05-12-2016 05:56 AM
    Hi Thorsten, Just for curiosity, that is to prevent a port to became ISL in case of a mistake in the cabling ? If you want to do this for security reasons, you will like the secpolicy feature.

  • 5.  Re: Disable Trunk Port option

    Posted 05-12-2016 07:02 AM

    It´s just a precaution. The storage support proposes to disable the trunk port option. We have some problems with path-losts in the vmware environment and we see the problem (old firmware, wrong fillword, "enc out" errors) on the switch. Now the fillword´s are correct (3). Next week i make a firmware update.


    I hope this will solves the problem.


  • 6.  Re: Disable Trunk Port option

    Posted 05-12-2016 09:14 AM
    Based on what we discussed, and not aware about the whole problem, i cannot see any reason for the trunk capability of the F-Port to cause such problems. I would disable the trunk capability just to prevent undesired trunk changes and portcfgeport to prevent undesired ISL creation. Such configurations should not cause problems to a F-Port