How can cat2950 implement the acl ?

[sonailsolo]

I think ACL need device having capability of layer3,but cat2950 switchs are layer2 device , how can it implement acl ?

[jawad1979]

Hi,

If your switch is MLS (Multi-layer switching) capable, then you can use a router with access-list defined so that the switch may learn whether to forward the data to the destination port or not.The 2950 is MLS capable.

Hope I helped

Jawad

[t.baranski · Accepted solution]

The 2950 is layer-2 only from a packet-forwarding standpoint. It can, however, support layer-3 access lists on a very limited basis. Though it can't forward packets at layer-3, it can still filter at layer-3 -- these two functions aren't related.

[sonailsolo]

"Filtering" but not "forwarding" , thank u for giving me the hint .

[milan.kulik]

You can also use ACLs for QoS classification.

Regards,

Milan

[rajesh444]

Hi Jawad,

What would be the command to enable MLS on the 2950 switch? I also noticed that on the 3550 switches there is a command for MLS QoS but not MLS itself.

Thanks,

RAJ