Re: trunk without configuration

From: Shanky (shankyz@gmail.com)
Date: Mon Jun 19 2006 - 10:39:32 ART


The difference will be the encapsulation, DTP will negotiate ISL by default.

For more, refer to
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225see/scg/swvlan.htm#wp1096213

On 6/19/06, 2nd CCIE <doubleccie@yahoo.com> wrote:
>
> so what is the trunk type if no config and what's difference?
>
>
> *Shanky <shankyz@gmail.com>* wrote:
>
> Hi,
>
> DTP will negotiate a trunk, as the interface status is dynamic desirable
> and
> trunk can be formed without configuring anything on the I/Fs.
>
> If you configured using ..switchport trunk enacapulation trunk, the other
> switch should negotiate and trunk should form again with Dot1q encap.
>
> Hope it helps.
>
> Shanky
>
>
> On 6/19/06, 2nd CCIE wrote:
> >
> > I have two switches connected together (4000 and 3560) ..the port on
> every
> > side is not configured for anything ..however the show interface status
> > shows the port as Trunk .
> >
> > can someone explain why ? and what is the difference between this case
> and
> > if i configured dot1q trunk ?
> >
> > thx
> >
> >
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