2 cacti installations on same network- dropouts on 1 graph

davea · Post by **davea** » Mon Jan 08, 2007 10:19 pm

I have 2 installs on the same network segment- both monitoring the same switch.
Old server is running: 0.8.6g
win2k3

New server is running: 0.8.6i
win2k3

There are severe drops in the graphs on the new server but not to zero. It seems to occur only on specific graphs when the traffic is above 10Mbs.

Any clues here? The graphs are below.

Thanks!

fmangeant · Post by **fmangeant** » Tue Jan 09, 2007 2:54 am

Hi

14 mbytes/s ~ 114 mbits/s, which is the limit using 32-bit counters.

On the new server, can you try to use SNMP v2 and 64-bit counters ?

davea · Post by **davea** » Tue Jan 09, 2007 9:03 am

what would account for the difference?

fmangeant · Post by **fmangeant** » Thu Jan 11, 2007 8:25 am

AFAIK 64-bit counters and SNMP v2 are needed for trafic > 114 mbits/s (which is ~ 14 mbytes/s), otherwise you get holes of incorrect values in your graphs.

davea · Post by **davea** » Thu Jan 11, 2007 8:31 am

I changed it to version 2 snmp- no difference-still getting incorrect data on the new install of cacti.

anyone have any other ideas on this?

fmangeant · Post by **fmangeant** » Thu Jan 11, 2007 8:46 am

Did you recreate the 64-bits graphs ?

davea · Post by **davea** » Thu Jan 11, 2007 11:14 am

How do I recreate them?

Cacti

2 cacti installations on same network- dropouts on 1 graph

2 cacti installations on same network- dropouts on 1 graph

OK I understand why but if both are set up using v1 .....

I changed it to version 2 snmp

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