[66778] in North American Network Operators' Group
Re: Any 1U - 2U Ethernet switches that can handle 4K VLANs?
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Sun Jan 25 14:44:58 2004
Date: Sun, 25 Jan 2004 20:44:22 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: nanog@merit.edu
In-Reply-To: <73115.1075058025@verdi.nethelp.no>
Errors-To: owner-nanog-outgoing@merit.edu
On Sun, 25 Jan 2004 sthaug@nethelp.no wrote:
>
> Does anybody know of 1U - 2U form factor Ethernet switches that can
> handle 4K VLANs, or at a minimum 2000 VLANs? Note that we're
> specifically looking for the ability to handle this number of VLANs
> operating simultaneously, not only VLAN *IDs* in the full 4K range.
Extreme Summit48si.
> The switches should have 12 - 24 Fast Ethernet ports. Some form of "Q
> in Q" or stackable VLANs, ie. the ability to handle more than one VLAN
> tag, is vital.
You can do this by changing the ethertype of VLANs, Extreme calls this
VMAN (9100 for vlans intead of 8100). This requires a network design to
match. The switch has 48 ports and two SFP gig ports.
> Spanning tree is needed, but can be one common spanning tree for all
> VLANs (per-VLAN spanning tree is not needed).
It does that.
> Other features that would be nice to have:
>
> - RSTP (802.w) and MST (802.1s). - A couple of GigE ports (GBIC or SFP
> based, presumably) for uplinks. - L3 (IP routing). - DC power.
I dont know about RSTP and MST, but it does the rest. It also has EAPS for
subsecond L2 failover.
--
Mikael Abrahamsson email: swmike@swm.pp.se
