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hp procurve 5308xl Duplex Mismatch on port

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  • 1.  hp procurve 5308xl Duplex Mismatch on port

    Posted Dec 27, 2011 04:57 AM

    Hi,

     

    I have frequentely warning in the switch HP Procurve 5308xl

     

    1- Duplex Mismatch on port (ports)

    2- Excessive CRC/Alignement errors on port (port)

     

    Can you telle me please what issue of this errors and how can i resolve the probleme ?

     

    King regards



  • 2.  RE: hp procurve 5308xl Duplex Mismatch on port

    Posted Dec 27, 2011 06:06 AM

    Hi

     

    This errors are typicaly seen when a port did not correctly negociate speed and/or duplex (with old or exotic devices for exemple). But you can also have this errors when using bad or damaging cables.

    A port with speed/duplex mismatch will generate CRC, so the errors message are probably linked.

    In order to correct Speed / duplex errors CRC or other unexpected behavior on the link, you have to check the port configuration on both devices for speed and/or duplex
     mismatch and force the config accordingly.

    To check the mode setting for a port on the switch, use the "show interfaces brief" and "show interface [port]in the CLI

    To force the port speed / duplex, use the command "interface [port] speed-duplex [speed-duplex]"
    If possible, force the speed / duplex on both devices.

     

    Regards