[mrtg] Graphing Multicast

Geba, Scott Scott_Geba at cable.comcast.com
Thu Apr 19 15:04:18 CEST 2007

How do I graph multicast correctly? 

I am using this oid for multicast due to the fact that I am trying to
graph them on 10-30G interfaces/port channels. (From Cisco's

Target[target]: at x

For the rest below, I just used cfgmaker to create it mirroring a
standard interface bandwidth config. 

When I do an SNMPWALK on it, I get this...

SNMPv2-SMI::enterprises. = Counter64: 710887360

This is on a portchannel interface. The information I get back should
rarely, if ever change. If I get back 7108887360 I should have that same
number every other time, and doing a manual snmpget does show that this
number doesn't change.  When I try to graph it with MRTG I get all kinds
of spikes and valleys every time it polls, which is incorrect. What am I
doing wrong? 


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