Am I missing something or is it indeed the case that Cisco switches -- not routers -- do NOT support NBAR?
I cant seem to find one switch/software platform that supports NBAR...
Thank you ahead of time....
We all do feel that NBAR should be supported on Cisco swicthes but the reality is that NBAR is very CPU intensive feature and it can severely degrade the network performance if done in software. All the LAN device carry a huge traffic across the network and any device that is doing the software based NBAR classification in the middle can impact the LAN peformance.
Sup32 with PISA has a dedicated hardware engine for NBAR classifcation and matching it with the policies in QOS. Sup 720 might be on the way with PISA card on it. Unless we have the dedicated hardware engine for this, I dont see it to be avialable in near future.