this question comes up every week in some form.
It is preferable to nail up every feature and NOT rely on auto-anything.
Kevin Wigle
----- Original Message -----
From: "Keith Woodworth" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, 28 March, 2001 23:26
Subject: Duplex settings 2900XL -> 7206
>
> Have a question for duplex settings.
>
> Just trouble shooting some transient errors that seem to pop up once in a
> while and was going over port settings and came across something.
>
> We have a FastE port on a 7206 connected to a 2900XL. The 2900 port is
> config'd as:
>
> Auto-duplex (Half), Auto Speed (100), 100BaseTX/FX
>
> and the console log on the 2900 shows:
>
> 5w3d: %LINK-4-ERROR: FastEthernet0/24 is experiencing errors
>
> which is the port the 7206 is on.
>
> But on the 7206 the port is config'd as:
>
> Full-duplex, 100Mb/s, 100BaseTX/FX
>
> Why would the switch only go half duplex and the router go full? And would
> the commands like this on the 2900 fix this:
>
> conf t
> int faste 0/24
> duplex full
> ^Z
>
> This would force the port on the 2900 to go full duplex but the (auto 100)
> would be there. Would be better to force the 100 as well and not have it
> do auto speed negotiation?
>
> Funny thing is we have a 2900 out of the box plugged into another faste
> port on the 7206 and it comes up right. (100/full in auto mode)
>
> Thanks,
> Keith
>
>
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