[mrtg] OID math in MRTG

[Emery, Mark]

Hello All,

	I'm trying to graph the number of calls being handled by a Remote
Access device.  I'd like the graph to show the TOTAL number of calls in
green, with the blue line showing the number of calls that are outgoing.
I've got two OIDS available, one from incoming, one for outgoing.

	Is there any easy way to do this? I need to do A+B & A not the
documented A&B:s at n + C&D:s at n.

	e.g.  Target[rasbox]:
1.3.6.1.4.1.529.11.7.0+1.3.6.1.4.1.529.11.7.0&1.3.6.1.4.1.529.11.6.0:snmpcom
m at nodename

Thanks,

Mark Emery.

P.S. My employer is not officially using MRTG yet, I'm experimenting to see
if it will meet my teams requirements.

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