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Network Problem - SCO

Hi Hope someone can help me out with a network problem we sometimes have. We use Openserver 5.0.2 (I know it's old but it works for us) with all (I think) the relevant patches. We have X terminals connected via tcp/ip using the XDMCP protocol. Each X terminal issues an XDMCP broadcast and the host Unix server responds with the Scologin prompt, the user logs in and starts working. However intermittently the X terminals just hang and the only fix I've found is a system reboot, which solves the problem until next time. When the X terminals hang it appears ...

  1. #1

    Default Network Problem

    Hi

    Hope someone can help me out with a network problem we sometimes have.

    We use Openserver 5.0.2 (I know it's old but it works for us) with all (I
    think) the relevant patches.

    We have X terminals connected via tcp/ip using the XDMCP protocol.

    Each X terminal issues an XDMCP broadcast and the host Unix server responds
    with the Scologin prompt, the user logs in and starts working.

    However intermittently the X terminals just hang and the only fix I've found
    is a system reboot, which solves the problem until next time.

    When the X terminals hang it appears that the underlying tcp/ip network has
    stopped responding. My conclusion for this is that if you ping opposite
    sides of the network nothing happens, however lights on the networks cards
    and hub indicate a connection.

    Anyone got any help or advice.

    Regards

    MARK



    Mark Guest

  2. #2

    Default Re: Network Problem

    "Mark Walker" <com> wrote in message
    news:3f9ce115$news.legend.net.uk... 
    responds 
    found 
    has 
    cards 

    When this occurs, what do the streams resources look like? When the
    machine is in that state again, try looking at the output of these:

    netstat -m
    llistat -l

    (I'm reasonably sure they are in 502.. don't have a machine here to double
    check that on).

    bkx


    Stuart Guest

  3. #3

    Default Re: Network Problem

    In article <3f9ce115$news.legend.net.uk>,
    Mark Walker <com> wrote:
     
     

    It is old - but IMO and that of many others - the TCP/IP in OSR5
    never started working properly until OSR 5.0.5
     

    That's pretty exterem. Have you tried just stopping and restarting
    the TCP/IP services. That way everything else can keep working.

    Bill

    --
    Bill Vermillion - bv wjv . com
    Bill Guest

  4. #4

    Default Re: Network Problem Reply-To: scomscxenitec.on.ca

    Mark Walker enscribed:
    | Hi
    |
    | Hope someone can help me out with a network problem we sometimes have.
    |
    | We use Openserver 5.0.2 (I know it's old but it works for us) with all (I
    | think) the relevant patches.
    |
    | We have X terminals connected via tcp/ip using the XDMCP protocol.
    |
    | Each X terminal issues an XDMCP broadcast and the host Unix server responds
    | with the Scologin prompt, the user logs in and starts working.
    |
    | However intermittently the X terminals just hang and the only fix I've found
    | is a system reboot, which solves the problem until next time.
    |
    | When the X terminals hang it appears that the underlying tcp/ip network has
    | stopped responding. My conclusion for this is that if you ping opposite
    | sides of the network nothing happens, however lights on the networks cards
    | and hub indicate a connection.

    Your chances of getting a more thorough answer will improve if you
    provide a hardware inventory. I don't remember the exact time frame but
    somewhere near the 5.0.2 era there was a network card that would shutdown
    if it detected too many collisons.
    --
    ================================================== ========================
    Tom Parsons com
    ================================================== ========================
    Tom Guest

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