On Tue, Oct 07, 2003 at 02:36:39PM +1000, [EMAIL PROTECTED] wrote: > Dear all > I am trying to graph the cumulative usage im megabytes of the ports from our > routers to our isps. So far my graphs are quite good except that the OIDs in > question that I am monitoring seem to wrap (go back to zero) after they get > to around 4000000000 bytes (2 ^ 32 bytes). > > I was thinking that I could write a script to tweak the data that is stored > in the .log file to somehow recognise that the counter has wrapped and > simply process the .log data so that the data continues incrementing instead > of going back to zero.
Alternatively: write your own script that queries the device, handles any overflow (counterwrap), and returns the difference to MRTG. MRTG needs to call this script using the external program; it needs to process the numbers as ABSOLUTE. Make sure your program knows when MRTG failed to update its log, and make sure your program knows when a counter was reset rather than wrapped. HTH Alex -- http://www.googlism.com/index.htm?ism=alex+van+den+bogaerdt&type=1 -- 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
