monitor traffic on catalyst 3550

[lohelle]

Is it possible to monitor the type of traffic and dscp for interfaces on Catalyst 3550 switches? Something like netflow on routers...
I had a Avaya C460 L3 switch earlier (different company) and used a utility to monitor traffic types and priority.. I think this utility was using SMON to do this..

Is this possible on Cisco switches? Any freeware windows utility?

thanks in advance!

 

[chipk]

Have you looked into using SPAN and a sniffer, or were yoou looking for a different approach?

http://www.cisco.com/warp/public/473/41.html

 

[qweasdzxcqweasdzxc]

There is a way you can do it by using an ACL on the interface you want to monitor. Follow the link below..

http://articles.techrepublic.com.com/5100-1035-5731134-2.html

 

[avilov]

There is a very nice tool called nTop. it runs on *nix and windows. Combined with SPAN on cisco it can provide a good result

 

[lohelle]

thank you very much! I will check out these!

 

[lohelle]

Ntop have a lot of great features!

Is there a windows utility to monitor dscp on a interface? I want to monitor number of packets and packet size in different precedenses and queues..

 

[avilov]

I believe cisco provided QoS MIBs and any decent SNMP collector should be able to handle it