Traffic monitoring per-vlan?

[frenzeus]

Hi,

Does anyone know of any good tools that can monitor overall traffic utilization by vlans?

[kulinski]

hi,

i don't know a tool but what about snmp-requests ?

you could write a tiny script that polls your devices and then puts the replys in a html that shows you a graph or whatever you whant so see.

kind regards

chris kulinski

[scottosan]

you can try to apply "ip route-cache flow" to the SVI vlan interface, then use "sh ip cache flow". this is a useful tool that will show you all of the source and destination traffic by protocol on your vlan.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/cs/csprtx/csswcmd.htm

[mearls]

The tool I use to pool my vlan utilization. http://www.mrtg.org

The Multi Router Traffic Grapher (MRTG) is a tool to monitor the traffic load on network-links. MRTG generates HTML pages containing graphical images which provide a LIVE visual representation of this traffic.

Or you could write your own with perl and log all data to rrdtool http://www.rrdtool.org