[mrtg] How to measure VLAN Traffic with MRTG ?
cot39070-forumaccount at fh-regensburg.de
Mon Sep 5 11:01:42 MEST 2005
we have a lot of different Cisco Switches and we want now to display the
Traffic of some VLANs (at a Webpage). I would like to get the Traffic
with SNMP (using Mrtg).
Lets say we have a Switch with 24 Ports. 12 Ports are used with VLAN 100
and the other 12 Ports are used with VLAN 200.
Sure i can Mrtg say: "Take the physical Ports 1,2,3,4,5...12 ,build a
sum and display it as VLAN 100". But if the configuration of the Switch
changes i have always to modify the mrtg Config too.
Does a Switch store some VLAN Information like Traffic/Bandwidth etc in
a special part of the MIB? If so, i could directly read out these values
and display it without having problems when the configuration of the
(I know that the Cisco Switches produces an "interface - entry" for
every VLAN, but i did not find something about the Traffic)
Thanks a lot
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