From: Nadeem Ansari (nadeem.ansari574@gmail.com)
Date: Sun Feb 22 2009 - 14:07:23 ARST
Thanx for your quick reply Jared :)
On Sun, Feb 22, 2009 at 9:32 PM, Jared Scrivener <jscrivener@ipexpert.com>wrote:
> The tag will be a Dot1Q tag for VLAN1 when it is sent out. When it is
> received, the trunk port removes the tag (as normal). A tag is only added
> again if the receiving switch is sending tagged frames for the same native
> VLAN (VLAN1) on another interface or if it is sending out a different trunk
> port with a different native VLAN.
>
>
>
> If the native VLAN was not VLAN1 but a different VLAN (VLAN2 for example),
> then the tag will be for VLAN2. On the receiving switch's trunk port that
> tag is removed and only added again if it needs to be forwarded via a trunk
> port that tags VLAN2.
>
>
>
> Cheers,
>
>
>
> Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
>
> Technical Instructor - IPexpert, Inc.
>
> Telephone: +1.810.326.1444
>
> Fax: +1.810.454.0130
>
> Mailto: jscrivener@ipexpert.com
>
> *From:* Nadeem Ansari [mailto:nadeem.ansari574@gmail.com]
> *Sent:* Sunday, 22 February 2009 10:55 AM
> *To:* Jared Scrivener
> *Cc:* khurram noor; Cisco certification
> *Subject:* Re: Native Vlan
>
>
>
> My question is that what will be the tag on native vlan1 frame ?
> What will be the case if we use some other vlan except vlan1 in this
> scenario
>
> Regard
> Nadeem
>
> On Sun, Feb 22, 2009 at 8:15 PM, Jared Scrivener <jscrivener@ipexpert.com>
> wrote:
>
> Hey Khurrum,
>
> The other switch (that isn't tagging the native VLAN) will just remove the
> tag and forward the traffic to any ports in that VLAN (VLAN 1 in your
> example).
>
> Cheers,
>
> Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
> Technical Instructor - IPexpert, Inc.
> Telephone: +1.810.326.1444
> Fax: +1.810.454.0130
> Mailto: jscrivener@ipexpert.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> khurram noor
> Sent: Sunday, 22 February 2009 6:27 AM
> To: Cisco certification
> Subject: Native Vlan
>
> Hello everyone.
> I have a question ! I went across a scenerio which i wasnt able to fully
> understand. in this scenerio i was asked to form 802.1q trunking among 4
> switches, which by default has native vlan 1 as untagged. there was a
> requirement that one of the switch should tag the native vlan 1 and others
> should not. i did this and it was working. what i want to ask is if i
> perform tagging on native vlan, is this not going to matter for switches
> that are having untagged native vlan? what will happen in the background
> when a switch recieves a tagged native vlan frames, which is not tagging
> native vlan.
>
> Any ideas?
>
> --
> Khurram Noor
> CCIP, CCNA
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
This archive was generated by hypermail 2.1.4 : Sun Mar 01 2009 - 09:44:12 ARST