[66785] in North American Network Operators' Group
Re: Any 1U - 2U Ethernet switches that can handle 4K VLANs?
daemon@ATHENA.MIT.EDU (Niels Bakker)
Sun Jan 25 17:01:39 2004
Date: Sun, 25 Jan 2004 23:00:05 +0100
From: Niels Bakker <niels=nanog@bakker.net>
To: nanog@merit.edu
Mail-Followup-To: nanog@merit.edu
In-Reply-To: <1075065009.728.111.camel@intrepid.jsw.louisville.ky.us>
Errors-To: owner-nanog-outgoing@merit.edu
* jsw@five-elements.com (Jeff S Wheeler) [Sun 25 Jan 2004, 22:10 CET]:
> On Sun, 2004-01-25 at 14:44, Will Hargrave wrote:
>> I would check the Foundry Fastiron series - maybe the 4802. Everything
>> I've read appears to indicate they support all 4096 vlans
>> simultaneously, although you will of course want to verify this.
> I don't think this is true. Those of you with BigIron units know that
> (at least in m3 supervisors) they support only 512 vlans at most. I do
> not think the older, and generally less capable, FastIron switches are
> likely to support more.
>
> The command to check this on BigIron is `show default values`.
That indicates a maximum of 4095 on a recent switch here that runs the
layer-2 only image. Older models appear to have a limit of 2048, but
I can't tell for sure whether this is hardware or software related.
Configurability is, of course, no guarantee for things to actually work.
-- Niels.
