I have a customer who needs a switch which can provide statistics regarding switched VLAN flows. the scenario is as follows -
Router 1 is attached to Switch A
Switch A is trunked to Switch B
Switch B is trunked to Switch C
Switch C is attached to Router 2
Switch B is attached to Router 3
the switches are passing trunked traffic between them without having interfaces on the trunked VLANs but the customer wants to gather traffic statistics on these VLANs from the switches. the switches need at least 24 10/100/1000 ethernet ports.
It seems to me that this would be possible using Netflow and
"ip flow ingress layer2-switched"
but it appears to me that this is available only on the 45xx and larger switches.
my questions are:
am i correct in using Netflow for this?
is there another way to do this accounting?
is there a smaller switch that would support using either Netflow or another method to get these statistics.
hope i that was clear - but if not just ask!
thanks in advance!