SmokeyBandid
Technical User
Hello -> First I want to say that I really think Tek-Tips is a great community and I always enjoy reading the posts.
I'm working for a big company that has a ATM backbone at the moment that is connected from US to Europe to Asia. They have more then 100 sites and about 150+ cisco routers. Most of them are 26xx routers. The Core routers are 72xx routers. We are using Concord E-Health to monitor the amount of traffic on a connection, but now we want to use Cisco Netflow to monitor what kind of traffic (application based) is going over the lines.
I never worked with Netflow before and I'm still reading alot of information on the internet.
Now I found an article about the CPU utilization of cisco netflow on a 26xx router. Look here :
It says that the cpu utilization is about 50% higher then normal on a 2600 router when netflow is active with about 45000 flows.
Now my question is : Is 45000 flows much for a router and how do you describe a flow ? Does anybody have any experience with netflow ?
I'm working for a big company that has a ATM backbone at the moment that is connected from US to Europe to Asia. They have more then 100 sites and about 150+ cisco routers. Most of them are 26xx routers. The Core routers are 72xx routers. We are using Concord E-Health to monitor the amount of traffic on a connection, but now we want to use Cisco Netflow to monitor what kind of traffic (application based) is going over the lines.
I never worked with Netflow before and I'm still reading alot of information on the internet.
Now I found an article about the CPU utilization of cisco netflow on a 26xx router. Look here :
It says that the cpu utilization is about 50% higher then normal on a 2600 router when netflow is active with about 45000 flows.
Now my question is : Is 45000 flows much for a router and how do you describe a flow ? Does anybody have any experience with netflow ?