multivlan ports

[anjum]

Hi all!

need some help, as i m in need of some switch which can support multiple vlans in one port.Previously 2900 series was the only one that supported this, but as it has reached End of Life so now i need ur input on this URGENTLY.

regards

omar

[milan.kulik]

Hi,

no chance, I'm afraid.

This feature is not supported anymore.

"The multi-VLAN port feature is supported only on the Catalyst 2900 XL/3500 XL series switches. This feature is not supported on the Catalyst 4000/5000/6000 series or any other Cisco Catalyst switches."

See http://www.cisco.com/warp/public/793/lan_switching/3.pdf

What purpose do you require this feature for?

Whouldn't it be possible to use PVLAN, voice VLAN or trunk port instead of it?

Rgeards,

Milan

[anjum]

Well Milan,

I need it for some privilidged users like top level managers that will be a part of different VLANs, I have tried it with trunk ports but due to the 802.1q encapsulation its not working as the other end is only PC's.PVLAN , ... can u tell me more how can i do it on that.

Reagrds

Omar

[milan.kulik]

Hi Omar,

my idea was you could use community VLANs for particular workstation groups and make the managers the promiscuous ports (see http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/8_3/configur/vlans.htm#wp1028273).

But I've never implemented PVLANs in a production network...

Regarding 802.1q:

AFAIK, some NICs support it on WindowsXP or Windows2003 server. But probably not on a manager notebook...

I'd try to solve your requirements by putting top managers to a special VLAN and configure inter-VLAN routing with ACLs restricting access between VLANs on your L3 device (router, L3 switch).

Regards,

Milan