From: Church, Chuck (cchurch@wamnetgov.com)
Date: Wed Apr 07 2004 - 23:18:47 GMT-3
Thanks for the info. Naming standards is exactly the reason.
Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Wam!Net Government Services - Design & Implementation Team
13665 Dulles Technology Dr. Ste 250
Herndon, VA 20171
Office: 703-480-2569
Cell: 703-819-3495
cchurch@wamnetgov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=index&search=cchurch%40wamnetgov.com
> -----Original Message-----
> From: Wes Smith [mailto:wesmith@rogers.com]
> Sent: Wednesday, April 07, 2004 6:14 PM
> To: Howard C. Berkowitz
> Cc: ccielab@groupstudy.com
> Subject: Re: OT: 4096 VLAN support
>
>
> Well one circumstance is naming standards. Another is a
> desire to have
> completely unique vlan'id's thruout a large campus.
> (again naming standards... ie, vlan 20 is the 2nd floor , 30 is the
> 3rd etc)
>
> Service providers doing ethernet lan extentions are another.
>
> You're right about VTP. You need VTP Ver3 to support the
> expanded range
> vlans.. Really new stuff.
>
> Re switches. All of the C4K, 4500, 5000, 6000 and 2950/3550 support
> extended vlans.
> None of the ...2900xl and 3500xl do.
>
> Howard C. Berkowitz wrote:
>
> > At 8:12 AM -0500 4/7/04, Church, Chuck wrote:
> >
> >> All,
> >>
> >> Sorry about the OT, but does anyone have a list of which Cisco
> >> switches support the 1025-4096 VLANs using dot1Q? I looked for a
> >> while on CCO, but never found a comprehensive list. I'm most
> >> interested in 3550s (which I'm pretty sure do), 3500XLs,
> and Sup 1 &
> >> 2 for the cat 4000s and 4500s.
> >>
> >
> > Might I ask a couple of questions, just for my own sense of such
> > problems?
> >
> > What drives the requirement for such a large number of
> VLANs? A large
> > campus? Are the VLANs divided by physical constraints (e.g.,
> > building/floor), or are they application/departmental?
> >
> > Are you using VTP? Will it be an operational constraint
> that it has
> > trouble with extended range VLANs?
> >
> >
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