George Lin wrote: >Hello, everyone! > > >I am assigned a task to configure mrtg for a 1000M network router. I have >some experiences before to configure mrtg to monitor a 100M network router, >so the basic configuration is not a problem. But a friend told me that mrtg >can not work smoothly with high speed network (for example, 1000M network) >without snmp V2 enabled and rrdtool enabled. And the interval mrtg script >runs should be 1 minute (as short as possible). I previously use 5 minute >interval in crontab to enable mrtg to monitor 100M router. > >My friends' words make me puzzled. To avoid additional problems when >configure mrtg for 1000M router. Anyone who has solid experiences can give >me help? What additional things should I care? > > >Very truly, >George > >
32-bit counters on links that speed will often wrap within a 5-minute period. SNMP v2 uses 64-bit counters and therefore won't wrap for quite some time. So your options are: Use the 64-bit counters and continue to poll every 5 minutes or Use the 32-bit counters and poll more frequently to avoid counter wrap. I recommend the first option as it is significantly easier to deal with if your device supports it. The 2nd option requires an RRDTool conversion which can be a large task for a novice. HTH, Eric Brander -- Unsubscribe mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/mrtg FAQ http://faq.mrtg.org Homepage http://www.mrtg.org WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
