How often are you polling? Does it support 64 bit counters or only 32 bit?
Are you using the rfc 2233 >From rfc 2233 3.1.6. Counter Size As the speed of network media increase, the minimum time in which a 32 bit counter will wrap decreases. For example, a 10Mbs stream of back-to-back, full-size packets causes ifInOctets to wrap in just over 57 minutes; at 100Mbs, the minimum wrap time is 5.7 minutes, and at 1Gbs, the minimum is 34 seconds. Requiring that interfaces be polled frequently enough not to miss a counter wrap is increasingly problematic. ..As an aside, a 1-terabit/second (1,000 Gbs) link will cause a 64 bit octet counter to wrap in just under 5 years. Conversely, an 81,000,000 terabit/second link is required to cause a 64-bit counter to wrap in 30 minutes. We believe that, while technology rapidly marches forward, this link speed will not be achieved for at least several years, leaving sufficient time to evaluate the introduction of 96 bit counters. ... I suspect that you are not using thr 64 bit counters. Connie Logg ([EMAIL PROTECTED]), Network Analyst Stanford Linear Accelerator Center 2575 Sand Hill Road (ms 97), Menlo Park, CA 94025 "Happiness is found along the way, not at the end of the road" -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, November 16, 2001 2:38 AM To: rrd-users@list.ee.ethz.ch Subject: [rrd-users] Problems monitoring Gigabit Links Good Morning :)) Here we are monitoring a lot of WAN and LAN Links with MRTG without Problems. Now I have the job, to monitor Gigabit Link of a Exteme Black Diamond Box. The Problems is that on this link, is a lot of traffic and the snmp counter wraps more than one time if the link is to 50% used.... Can I poll with RRD the device in 30s rythmus?? Or are the solutions to do it with MRTG?? Regards COOP / NCC Markus Forrer -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi