If you are using RRDTool for your backend, then instead of defining summary targets directly as "Target[c]: a + b", you can avoid many rollover problems by using routers2 as the frontend and defining a userdefined summary graph. To do this, you just define 'Target[a]' and 'Target[b]', then add the routers.cgi*Graph diretives on both. If you use the 'total' option you get the total of all component targets. If you specify 'nolines' and/or 'nodetails' you can suppress the component parts and only show the total. See the routers2 documentation for more help.
Note that using 32bit counters will always give you a problem if any individual interface has a throughput greater than approx 109Mbps though as after this a 32-bit octets counter rolls over twice in a 5-min window. Steve (biased advice, I know...) _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg
