From: Joseph Brunner (joe@affirmedsystems.com)
Date: Fri Aug 24 2007 - 04:03:03 ART
So if you have L3 switches, why not just make the SVI local to the clients
in that vlan, and just route (instead of trunk) off the switch.
The only time I would do what you said, is of course if my network was
comprised of L2 only switches (2960's etc) and I had the SVI for the vlans
on an upstream 3750, 6509, etc.
-Joe
_____
From: Toh Soon, Lim [mailto:tohsoon28@gmail.com]
Sent: Friday, August 24, 2007 2:58 AM
To: Joseph Brunner
Cc: sheherezada@gmail.com; Ajay Prakash; slevin kremera; Cisco certification
Subject: Re: vlan dot1q tag native
Hi Joe,
I'm really talking about local VLANs, not end-to-end VLANs.
Thank you.
B.Rgds,
Lim TS
On 8/24/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
It's 2007, I used L3 routed links...
Why do we ever need end to end vlans? Local vlan's only for me...
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Toh
Soon, Lim
Sent: Friday, August 24, 2007 2:30 AM
To: sheherezada@gmail.com
Cc: Ajay Prakash; slevin kremera; Cisco certification
Subject: Re: vlan dot1q tag native
Hi All,
Thanks for sharing.
I used to think that we can easily VLAN-hop across 802.1Q trunk by
configuring different native VLAN at both ends. Having labbed it, I realize
STP actually blocks off those inconsistent VLANs.
In real-world, I typically set the native VLANs to a bogus non-routable VLAN
and prune it ("switchport trunk allowed vlan remove...") from the trunk.
What's your practice?
Thank you.
B.Rgds,
Lim TS
On 8/24/07, sheherezada@gmail.com <sheherezada@gmail.com> wrote:
>
> Yes, you use that when you do dot1q in dot1q (that's it, double
> tagging), so that traffic in the native VLAN can be tunneled
> correctly.
>
> HTH,
>
> Mihai Dumitru
> CCIE #16616 (SP, R&S)
>
> On 8/24/07, Toh Soon, Lim < tohsoon28@gmail.com
<mailto:tohsoon28@gmail.com> > wrote:
> > Hi All,
> >
> > On the other way around, received untagged frames are considered to
> belong
> > to the native VLAN.
> >
> > Does anyone know the practicality of the "vlan dot1q tag native" command
> in
> > the real-world?
> >
> >
> > Thank you.
> >
> > B.Rgds,
> > Lim TS
> >
> >
> > On 8/24/07, Ajay Prakash < <mailto:ajay.prakash@networkpeople.co.in>
ajay.prakash@networkpeople.co.in> wrote:
> > >
> > > In 802.1q encapsulation, there is a native VLAN (Default VLAN 1). The
> > > frames
> > > destined for native VLAN are not tagged by the switch. If you issue
> this
> > > command then all frames including frames for the native VLAN will have
> a
> > > 812.1q header appended.
> > >
> > > Ajay
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > > slevin kremera
> > > Sent: Friday, August 24, 2007 6:49 AM
> > > To: Cisco certification
> > > Subject: vlan dot1q tag native
> > >
> > > whats the use of this command ,what does it accomplish
> > >
> > >
> _______________________________________________________________________
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
> > >
> > >
> _______________________________________________________________________
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:13 ART