[ale] ethernet switch issues

[Ned Williams]

Wandered Inn wrote:

> Ned Williams wrote:
>
> > What kind of collision rates do you have on your interfaces?
>
> None, there is no communication.  For example, if I attempt to telnet,
> I'll see the link activity led blink on both ends, but no collisions no
> communication.
>
> > A common issue with
> > 100Mb switches is auto speed/duplex negotiation. Are you working at 10 or 100
> > megabit?Half or full duplex?
>
> Both cards have leds which indicate they are at 100/full duplex.  The
> switch also indicates that both cards are at 100/full duplex.
>
> > A common problem can arrise with 100Mb/Full duplex
> > switches when the nic in the sever/pc is not auto sensing the proper duplex. Also
> > is your switch manageable?(does it support snmp polling?) I dont think the
> > netgears are, so your best bet is to watch your ifconfig on your pc/server.
>
> You are correct in that the switchs don't support snmp.  What exactly do
> you mean by 'watch your ifconfig?'  Watch Ifconfig for collisions?
> There's no data transfer at all.
>
> > you are using belkin I doubt the cables are your problem.
>
> I doubted it as well, but replaced them just the same, with no
> difference.
>
> > Force your nic to
> > 10mb/half duplex and see if you still have problems,
>
> How is this done??
>
> > if you do, try another nic,
> > preferbly a 10mb only nic, if you still have problems I would start to look at
> > your switch.
> >
> > Ned
> >
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>
> --
> Until later: Geoffrey           esoteric at denali.atlnet.com
>
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You can force most nic driver's duplex settings by issueing a command at lilo, search
the net for your specific card, I've only had to do it once with intel cards and cisco
hardware. a duplex problem  however usually causes bad collisions but not all together
data loss.


Ned


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