Learning the MAC is essential to how a switch performs switching.
If you don't learn the MACs, you've essentialing turned your Switch into a Hub and you are going to have to flood all ports for these unknown MACs.
I'm not aware of a way to totally turn off the learning. However, you can limit the amount of MACs you learn per port. I.e this helps prevent users from plugging hubs into their switch ports rather than just their PCs.
Disable switching on specific ports/vlans so as to allow traffic to IDS sensors without purchasing hubs.
I have an existing infrastructure where I would like to rspan traffic to an existing switch where I would like to place the IDS sensors (multiple sensors that require to see the same traffic stream); however, as it is a switch it won't forward the traffic to the ports because it has learnt that the destinations being addressed don't exist on that switch.
Ergo, my question on how to disable learning on that particular switch series (4500).
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...