On Mon, Oct 08, 2007 at 04:58:19PM -0700, Scott Baker wrote: > I've been running MRTG for years and never had a problem like this. > I just introduced a new switch into our network and wanted to > monitor it. > > http://www.web-ster.com/bakers/foundry_1-day.png > > It seems like any time this port goes over 110 or so Mb/s the graph > freaks out. It's like the counters are looping because it's so much > bandwidth. The config is super simple: > > Target[foundry_1]: 1:[EMAIL PROTECTED]: > SetEnv[foundry_1]: MRTG_INT_IP="" MRTG_INT_DESCR="GigabitEthernet1" > MaxBytes[foundry_1]: 125000000 > Title[foundry_1]: Traffic Analysis for 1 -- FESX424 Router > PageTop[foundry_1]: <H1>Traffic Analysis for 1</H1> > Options[foundry_1]: bits > > I'm thinking maybe this is a problem with the hardware and not MRTG?
It is not the hardware, it is not MRTG, it is SNMP. 32 bit counters wrap too often for your bandwidth: 2^32 Bytes / 300 seconds = 14,316,557 bytes per second. That's 114,532,456 bits per second, slightly more than 110 MB/s. You see 1,1 instead of 1,1+2^32. > Anyone had this problem before? <g> look at the archives and RTFM ... _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg
