Re: network stalls on Fedora Core 3

From: Keith Fetterman (kfetterman_at_go2marine.com)
Date: 04/26/05

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    Date: Tue, 26 Apr 2005 08:38:55 -0700
To: For users of Fedora Core releases <fedora-list@redhat.com>

    David,

    I am fairly sure that I have ruled out this problem . I have tried
    different cables, different sockets in the wall and different ports in
    the switch. I have tried different ethernet cards.

    The cables were factory made.

    I have a working Red Hat Enterprise 3 Linux system sitting next to it.
    I've plugged that ethernet cable into the FC3 system. The FC3 system
    still fails.

    I replaced the FC3 OS with RHE3. When RHE3 was running on the same
    hardware, I didn't experience the problem.

    Is it possible the drivers included with FC3 are more sensitive to
    hardware issues, than RHE3 linux?

    Thanks,
    Keith

    David Becker wrote:

    >
    >
    > FWIW, are your ethernet cables correctly crimped? EIA/TIA 568A (or B).
    >
    > If this happens with several ethernet cards with several versions of
    > linux then it could be a hardware problem. I've experienced incorrectly
    > crimped network cables resulting in stalls for one protocol and not
    > (apparently) for others. The behaviour of the protocol may or may not
    > hit deficiencies in the way the cable was crimped. This may also apply
    > to different TCP/IP/Ethernet implementations.
    >
    > Is the card operating at 10Mb in windows and a 100Mb in linux?
    > Incorrectly crimped cables are very forgiving for 10Mb, but may stall on
    > 100Mb speeds. The intel driver is different from the 3com ones.
    > 

    -- 
-----------------------------------------------------------------
Keith Fetterman                          206-780-5670
Mariner Supply, Inc.                     kfetterman@go2marine.com
http://www.go2marine.com
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