[rrd-developers] Min Max / Spikes

[mboldi at shore.net]

Hi Tobi,
I am rather new to RRD and have a question that (probably) has been asked
before (many times).
I occasionally get (unexplained) spikes in graphs when polling goes down
or if a router is rebooted.
I realize I must set thge min/max values.  what are the vales ?
Is it assuming full duplex ?  Is it time dependent ?
for example. 

interfaces.ifTable.ifEntry.ifDescr.40 = "Serial2/0/0/28:0"
interfaces.ifTable.ifEntry.ifSpeed.40 = Gauge: 1536000

should the max for 40 be 1536000 or (1536000 * 300) or (1536000 * 300 * 2)

what about other interface types ?

interfaces.ifTable.ifEntry.ifDescr.41 = "Loopback0"
interfaces.ifTable.ifEntry.ifSpeed.41 = Gauge: 4294967295

interfaces.ifTable.ifEntry.ifDescr.43 = "ATM3/0"
interfaces.ifTable.ifEntry.ifSpeed.43 = Gauge: 45000000

min I assume is 0


Thanks
Mike Boldi
mboldi at shore.net
(781) 586-6178


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