We require traffic details on a per IP basis (not on a port basis) in our data center.
We are using Netflow export feature for accounting purposes. We currently route the traffic through a 2691 router using a dot1q trunk to C3550 switches are used to provide ports but performance on the router is a problem.
For that reason, we planned to install nice C3750 Gigabit switches with EMI and let those route the traffic.
Actually we can not install the C3750G Switches as Netflow is not available and Cat 4k and Cat 6K exceed the budget limits.
What to do? We really have a problem here and we have to solve it.
(There was a similar case before for c3550 but there was no solution).