If you're getting a graph that jumps between maxbytes and zero, then possibly the value being retrieved/calculated is >maxbytes and so is not being recorded. To test this, set AbsMax[] to something much bigger (eg 10xMaxbytes) and see if the line appears. Of course this doesnt explain why it is so big,..
Steve ________________________________________ From: [email protected] [[email protected]] On Behalf Of Martin77 [[email protected]] Sent: Thursday, 17 December 2009 1:35 p.m. To: [email protected] Subject: [mrtg] Bandwidth per user session - VPN 3000 & ASA MRTG Guru's, I've been looking at the conf files too long and can't figure out why this works on one device, but not the other. Trying to graph bandwidth utilization of a single user session connected to a VPN gateway. Don't care about any particular users or top users or anything, just a simple 'current interface utilization / current number users = bandwidth per user' type expression. Running MRTG 2.16.2. These conf snippets running against a VPN 3000 work perfectly: Target[brm-vpn-srh-1.bw_in]: 1:pub...@brm-vpn-srh-1: Target[brm-vpn-srh-1.bw_out]: 2:pub...@brm-vpn-srh-1: Target[brm-vpn-srh-1.bw_per_user]: 1:pub...@brm-vpn-srh-1 / .1.3.6.1.4.1.9.9.171.1.3.1.1.0&.1.3.6.1.4.1.9.9. 171.1.3.1.1.0:pub...@brm-vpn-srh-1 MaxBytes[brm-vpn-srh-1.bw_per_user]: 12500000 Options[brm-vpn-srh-1.bw_per_user]: bits Graph pattern follows i/f utilization graph, with numbers scaled down to appropriate value based on how many people logged in at that time. On an ASA, I have these conf snippets: Target[sca-vpn-srh-1.counts]: .1.3.6.1.4.1.9.9.392.1.3.1.0&.1.3.6.1.4.1.9.9.392.1.3.1.0:pub...@sca-vpn-srh-1 -mgmt Target[sca-vpn-srh-1.bw_in]: #inside:pub...@sca-vpn-srh-1-mgmt:::::2 Target[sca-vpn-srh-1.bw_out]: #outside:pub...@sca-vpn-srh-1-mgmt:::::2 Target[sca-vpn-srh-1.bw_per_user]: #outside:pub...@sca-vpn-srh-1-mgmt:::::2 / .1.3.6.1.4.1.9.9.392.1.3.1.0&. 1.3.6.1.4.1.9.9.392.1.3.1.0:pub...@sca-vpn-srh-1-mgmt:::::2 MaxBytes[sca-vpn-srh-1.bw_per_user]: 125000000 Options[sca-vpn-srh-1.bw_per_user]: bits The result here is that the graph jumps up and down between almost nothing, and the 125M max set in MaxBytes. I think what it's doing in the 2nd case is dividing the actual value of the byte counter by user count. Using indexes & version 1 like on the 3k makes no difference. Can anyone see what I'm doing wrong to get different expression eval behavior between these 2? Any way to make it use the utilization of an interface in the expression, instead of the raw counter value? Thanks & Regards, -Martin. -- View this message in context: http://n2.nabble.com/Bandwidth-per-user-session-VPN-3000-ASA-tp4178963p4178963.html Sent from the MRTG Users Mailinglist mailing list archive at Nabble.com. _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg
