Re: Wordings game : part 2 . (help again)

From: ALL From_NJ (all.from.nj@gmail.com)
Date: Sat Feb 14 2009 - 13:04:12 ARST

Just to add my 1/2 a penny here ...

Just this part of the question might not makes as much sense, but reading
the whole section / lab might point you to a proprietary or standardized
method. Was there anything else in your lab that would indicate industry
standard versus proprietary?

True ... ISL puts an ISL header on ... 30 additional bytes. An ISL header
is not really a 'VLAN header' whatever "VLAN header" means ...

Would be nicer if the questions asked "all frames should be tagged with the
VLAN id, and you can not change the MTU above 1504 ... " something along
this lines might push you towards do1.q.

Just a thought and a 1/2 penny. ;-)

Andrew Lee Lissitz

On Sat, Feb 14, 2009 at 9:18 AM, Darby Weaver <ccie.weaver@gmail.com> wrote:

> Who said VLAN 1 was allowed across the trunk in the first place?
>
>
>
>
> On Sat, Feb 14, 2009 at 4:49 AM, GAURAV MADAN <gauravmadan1177@gmail.com
> >wrote:
>
> > Hi All
> >
> > If i am asked that " all traffic sentover trunk links should be tagged
> with
> > vlan header"
> >
> > option 1 : Use ISL
> > option 2 : Use dot1q and "vlan dot1q tag native "
> >
> > Which one is preferred and why ?
> >
> > Regads
> > Gaurav Madan
> >
> >
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-- 
Andrew Lee Lissitz
all.from.nj@gmail.com

Blogs and organic groups at http://www.ccie.net

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