Re: Cisco 3560 - behavior

So are you saying that an access port today will accept tagged traffic
as long as it is tagged with the vlan assigned to the access port?

This is contradictory to the documentation and everything else I have read.

I had always understood that any tagged traffic will be dropped regardless?

On 11 April 2011 20:04, Steve Di Bias <sdibias_at_gmail.com> wrote:
> Of course, nobody knows everything, so fair enough.
>
>
>
> The behavior today would be to forward any untagged frames or frames tagged
> with a vlan id of the access vlan while denying everything else.
>
>
>
> This wasn't always the case however, and I believe that older OS versions
> will actually forward the tagged frames as well.
>
>
>
>
>
> On Mon, Apr 11, 2011 at 11:39 AM, Stephen Robinson <
> stephen.robinson_at_qtzl.com> wrote:
>
>> Sounds like none of you know the answer either... HaHAHa....
>>
>> Better to make fun than be productive... :)
>>
>>
>>
>> Jagdeesh - sorry for the ridicule of my peers. I speculate (but do not
>> know) that you could not pass a vlan tag on an access port but I'm not
>> sure
>> if it would drop or if it would just strip the tag.
>>
>> Steve-Max-JP care to step up and try to answer?
>>
>>
>> BTW - a ccie number does not mean you know everything.... And who better
>> to ask than other smart people like this list. even Narbik and Scott
>> don't know everything (I mean... in theory there may be something that
>> they don't know... Of course I can't prove it)
>>
>>
>>
>>
>>
>> > From: JB Poplawski <jb.poplawski_at_gmail.com>
>> > Reply-To: JB Poplawski <jb.poplawski_at_gmail.com>
>> > Date: Mon, 11 Apr 2011 13:09:07 -0500
>> > To: Max Pierson <nmaxpierson_at_gmail.com>
>> > Cc: Steve Di Bias <sdibias_at_gmail.com>, "Engr. Jagdeesh. K. Vasvani"
>> > <jk_vasvani_at_hotmail.com>, group-study <ccielab_at_groupstudy.com>
>> > Subject: Re: Cisco 3560 - behavior
>> >
>> > I just re-read that... yikes!
>> > JB
>> >
>> > On Mon, Apr 11, 2011 at 12:43 PM, Max Pierson <nmaxpierson_at_gmail.com>
>> wrote:
>> >>> Does your signature say CCIE?
>> >>
>> >> Lol, i was thinking the same thing. It must be from a pass4sure cert
>> :)
>> >>
>> >> On Mon, Apr 11, 2011 at 12:18 PM, Steve Di Bias <sdibias_at_gmail.com>
>> wrote:
>> >>
>> >>> Does your signature say CCIE?
>> >>> On Apr 11, 2011 9:59 AM, "Engr. Jagdeesh. K. Vasvani" <
>> >>> jk_vasvani_at_hotmail.com> wrote:
>> >>>> Dear Experts,
>> >>>> Would appreciate if anyone could help by clarifying below queries:
>> >>>>
>> >>>>
>> >>>> 1. how would a cisco switch reacts when it receives a tagged Frame on
>> an
>> >>>> Access Port.
>> >>>> 2. Does switch pass each & every frame b/w access ports in vlan x,
>> where
>> >>> one
>> >>>> is configured with " switchport voice vlan x" and other with
>> "switchport
>> >>>> access vlan x"
>> >>>>
>> >>>>
>> >>>> REgards,
>> >>>>
>> >>>>
>> >>>>
>> >>>> Jagdeesh. K. Vasvani
>> >>>> CCIE# 28213 (R&S)
>> >>>>
>> >>>>
>> >>>> Blogs and organic groups at http://www.ccie.net
>> >>>>
>> >>>>
>> _______________________________________________________________________
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>> >>>
>> >>>
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>> >>> _______________________________________________________________________
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>> >>
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>> >>
>> >> _______________________________________________________________________
>> >> Subscription information may be found at:
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>> >
>> >
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>> >
>> > _______________________________________________________________________
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>> >
>> >
>> >
>> >
>> >
>> >
>> >
>>
>>
>>
>
>
> --
> -Steve Di Bias
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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Received on Mon Apr 11 2011 - 20:13:12 ART