RE: Private Vlans

From: Stephen R. Gill (gillsr99@yahoo.com)
Date: Sun Mar 25 2001 - 17:52:18 EST


I've been informed that support for private vlans may be coming _soon_ in a
couple of lower-end Cisco models (4000 & 2980) which could provide a more
cost effective solution depending on your requirements. You may want to
check with your Cisco rep to see if you can dig up any more concrete
details.

-- steve

-----Original Message-----
From: Stephen R. Gill [mailto:gillsr99@yahoo.com]
Sent: Saturday, March 24, 2001 2:18 AM
To: Michael Long; cisco-nsp@puck.nether.net
Subject: RE: Private Vlans

From what I understand, the Cat6000 switches (without IOS code) are the only
devices that truly support private vlans. Recent support has been added to
the 2900XL/3500XL switches to support private vlan edge ports only under
12.0(5)XU. I do believe that they are working on getting this feature added
to the IOS code on the Cat6000 as well. The main issue is that it works in
hardware at the ASIC level and would be hard to port to other existing
hardware architectures ad hoc.

See: http://www.cisco.com/warp/public/473/63.html

As a side note, Foundry has recently added support for private Vlans but I
have not done inter-operability testing to know if they are compatible with
Cisco - my guess would be no.

-- steve

-----Original Message-----
From: Michael Long [mailto:mlong@sac.verio.net]
Sent: Friday, March 23, 2001 6:37 PM
To: cisco-nsp@puck.nether.net
Subject: Private Vlans

What series of switches support Private Vlans? I know that Cat 6500's do,
but I want to know if any other series does.

Thanks,

Mike

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