From: Chuck Church (cchurch@xxxxxxxxxxxxx)
Date: Sun Nov 25 2001 - 08:57:43 GMT-3
Yes, it is Cisco proprietary, but it's nice to know that you've got layer 2
connectivity, even if it does go though another brand's stuff.
Chuck
----- Original Message -----
From: "Phil" <ciscostudent1@yahoo.com.br>
To: "Chuck Church" <cchurch@MAGNACOM.com>; "'Chua, Parry '"
<Parry.Chua@compaq.com>; <nobody@groupstudy.com>; "'Aaron T. Hassan '"
<tyang@attcanada.ca>; "'Juan Villamil '" <juan.villamil@earthling.net>;
<ccielab@groupstudy.com>
Sent: Friday, November 23, 2001 6:12 PM
Subject: RE: duplex error
> Isn4t CDP a Cisco only feature? Why run CDP when you4re connecting Cisco
to other vendors?
>
> Chuck Church <cchurch@MAGNACOM.com> escreveu: Sorry I'm late on this,
just catching up. Anyway, be careful with this kind
> of error if you've got any non-Cisco layer 2 equipment. Only Cisco
> terminates CDP frames on layer 2. Everyone else passes them on. So if you
> had:
>
> CAT4000---100mbfull---3ComLayer2switch---10mbhalf----Cisco2610
>
> You'd get a CDP duplex mismatch, because the 3Com forwards them on. This
> will happen whether you're set to auto or not. The only way to fix it is
to
> disable CDP on one side, or maybe change to CDP version 1 on one side,
which
> I don't think carries duplex information.
>
> Chuck
>
> -----Original Message-----
> From: nobody@groupstudy.com
> To: Aaron T. Hassan; Juan Villamil; ccielab@groupstudy.com
> Sent: 11/20/01 8:32 PM
> Subject: RE: duplex error
>
> Beaware, some fastethernet card does not allow to change the setting but
> other allow.
> SO try it out your self. Since in most case, it is connected to a
> switch, you need
> to verify at both side.
>
> Parry Chua
> -----Original Message-----
> From: Aaron T. Hassan [mailto:tyang@attcanada.ca]
> Sent: Wednesday, November 21, 2001 4:38 AM
> To: Juan Villamil; ccielab@groupstudy.com
> Subject: Re: duplex error
>
>
> There is a very good Cisco document on half full duplex and 10/100
> configuration. You either leave both ends auto-negotiation or manually
> config each end. Better we can have your config for the interfaces.
>
> ----- Original Message -----
> From: "Juan Villamil"
> To:
> Sent: Tuesday, November 20, 2001 3:26 PM
> Subject: duplex error
>
>
> > Hi Group
> >
> > Any ideas why I get this error when everything seems properly
> configure:
> >
> >
> > 03:38:58: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on
> > FastEthernet0/0
> > (not full duplex), with JAE0502029T(cat) 2/2 (full duplex).
> >
> >
> > Any help would be greatly appreciated.
> > Juan
> ---------------------------------
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