Re: Encapsulation on 4500 series

Yep. Some switches only support dot1Q trunking and as such there is no need
for a switchport trunk encapsulation command on those models/IOS

On Tue, Oct 18, 2011 at 9:59 AM, Marko Milivojevic <markom_at_ipexpert.com>wrote:

> Very likely because the model/version you're using doesn't support ISL
> as an alternative to ISL.
>
> --
> Marko Milivojevic - CCIE #18427 (SP R&S)
> Senior Technical Instructor - IPexpert
>
> On Tue, Oct 18, 2011 at 06:21, Don Rajaratne <don.rajaratne_at_gmail.com>
> wrote:
> > Hi Guys,
> >
> > Just wanted to find out whether you have experience why 'switchport trunk
> > encapsulation dot1q' is not supporting 4500 series switches run on IOS
> 15.x
> > version? I enable the 'switchport mode trunk' as well.
> >
> > I checked with normal 3560. its accepting encapsulation.
> >
> > Thanks
> >
> > Don
> >
> >
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