Re: Cacti Bandwidth Monitoring
Dear Peter, I have a cacti server running and it has been working fine so far except for one interface which has an average of 150Mbps going through it now. Before when I had less than 120Mbps I got proper graphs but of late it gives me graphs of 20Mbps when it should be giving me the correct reading (150Mbps). Is there a maximum bandwidth it graphs or can this be edited so that I get proper graphs? 32bit counters run over with 100mbit in less than 5 minutes. solutions: run poller every 1 minute update rrd's heartbeat or use 64bit counters Kind regards, Ingo Flaschberger
Re: Cacti Bandwidth Monitoring
Sounds like you're using 32bit counters, create a new graph of the interface using 64bit counters in cacti. -wil On Nov 29, 2010, at 6:24 AM, Peter Rudasingwa peter.rudasin...@altechstream.rw wrote: Hi, I have a cacti server running and it has been working fine so far except for one interface which has an average of 150Mbps going through it now. Before when I had less than 120Mbps I got proper graphs but of late it gives me graphs of 20Mbps when it should be giving me the correct reading (150Mbps). Is there a maximum bandwidth it graphs or can this be edited so that I get proper graphs? -- Best Regards, Peter Rudasingwa *ALTECH STREAM RWANDA Ltd* ICT Park Boulevard de L'Umuganda P.O.Box 6098 Kigali, Rwanda Telephone: (+250) 580532/5 Mobile: (+250) 0788406685 *Affordable Broadband Solutions*
Re: Cacti Bandwidth Monitoring
Try using 64 bit couters, you are running into a rounding error. --- Brian Raaen Network Architech On Mon, Nov 29, 2010 at 04:24:22PM +0200, Peter Rudasingwa wrote: Hi, I have a cacti server running and it has been working fine so far except for one interface which has an average of 150Mbps going through it now. Before when I had less than 120Mbps I got proper graphs but of late it gives me graphs of 20Mbps when it should be giving me the correct reading (150Mbps). Is there a maximum bandwidth it graphs or can this be edited so that I get proper graphs? -- Best Regards, Peter Rudasingwa *ALTECH STREAM RWANDA Ltd* ICT Park Boulevard de L'Umuganda P.O.Box 6098 Kigali, Rwanda Telephone: (+250) 580532/5 Mobile: (+250) 0788406685 *Affordable Broadband Solutions*
Re: Cacti Bandwidth Monitoring
You need to use 64 bit counters. Here you can find more info: http://www.cisco.com/en/US/tech/tk648/tk362/technologies_q_and_a_item09186a00800b69ac.shtml The problem is that at 150 mbps 32 bit counters roll-over at least twice in the 5 min interval. Warm regards Carlos Martinez LACNIC Uruguay On Mon, Nov 29, 2010 at 12:24 PM, Peter Rudasingwa peter.rudasin...@altechstream.rw wrote: Hi, I have a cacti server running and it has been working fine so far except for one interface which has an average of 150Mbps going through it now. Before when I had less than 120Mbps I got proper graphs but of late it gives me graphs of 20Mbps when it should be giving me the correct reading (150Mbps). Is there a maximum bandwidth it graphs or can this be edited so that I get proper graphs? -- Best Regards, Peter Rudasingwa *ALTECH STREAM RWANDA Ltd* ICT Park Boulevard de L'Umuganda P.O.Box 6098 Kigali, Rwanda Telephone: (+250) 580532/5 Mobile: (+250) 0788406685 *Affordable Broadband Solutions* -- -- = Carlos M. Martinez-Cagnazzo http://cagnazzo.name =
Re: Cacti Bandwidth Monitoring
Do you have it set for 64 bit counters? Sent via DROID on Verizon Wireless -Original message- From: Peter Rudasingwa peter.rudasin...@altechstream.rw To: nanog@nanog.org Sent: Mon, Nov 29, 2010 14:24:22 GMT+00:00 Subject: Cacti Bandwidth Monitoring Hi, I have a cacti server running and it has been working fine so far except for one interface which has an average of 150Mbps going through it now. Before when I had less than 120Mbps I got proper graphs but of late it gives me graphs of 20Mbps when it should be giving me the correct reading (150Mbps). Is there a maximum bandwidth it graphs or can this be edited so that I get proper graphs? -- Best Regards, Peter Rudasingwa *ALTECH STREAM RWANDA Ltd* ICT Park Boulevard de L'Umuganda P.O.Box 6098 Kigali, Rwanda Telephone: (+250) 580532/5 Mobile: (+250) 0788406685 *Affordable Broadband Solutions*
Re: Cacti Bandwidth Monitoring
Sounds like you need to use the 64 bit templates as your data may be rolling over. -b -- Bill Blackford Network Engineer Logged into reality and abusing my sudo privileges.
Re: Cacti Bandwidth Monitoring
Thanks to all. I used the 64 bit template and it's now working fine. Peter R. Bill Blackford wrote: Sounds like you need to use the 64 bit templates as your data may be rolling over. -b -- Best Regards, Peter Rudasingwa *ALTECH STREAM RWANDA Ltd* ICT Park Boulevard de L'Umuganda P.O.Box 6098 Kigali, Rwanda Telephone: (+250) 580532/5 Mobile: (+250) 0788406685 *Affordable Broadband Solutions*
Re: Cacti Bandwidth Monitoring
Might also look into the fix64bit plugin for cacti to modify your existing 32bit graphs so you don't have recreate them and all the extra changes you may need such as adding to graph trees, updating reports, thresholds, etc. --Original Message-- From: Peter Rudasingwa To: Bill Blackford To: nanog@nanog.org Subject: Re: Cacti Bandwidth Monitoring Sent: Nov 29, 2010 9:50 AM Thanks to all. I used the 64 bit template and it's now working fine. Peter R. Bill Blackford wrote: Sounds like you need to use the 64 bit templates as your data may be rolling over. -b -- Best Regards, Peter Rudasingwa *ALTECH STREAM RWANDA Ltd* ICT Park Boulevard de L'Umuganda P.O.Box 6098 Kigali, Rwanda Telephone: (+250) 580532/5 Mobile: (+250) 0788406685 *Affordable Broadband Solutions* Sent via BlackBerry from T-Mobile
Re: Cacti Bandwidth Monitoring
Also isn't http://forums.cacti.net/ more appropriate then nanog? Ryan Pavely Director Research And Development Net Access Corporation http://www.nac.net/ On 11/29/2010 9:24 AM, Peter Rudasingwa wrote: Hi, I have a cacti server running and it has been working fine so far except for one interface which has an average of 150Mbps going through it now. Before when I had less than 120Mbps I got proper graphs but of late it gives me graphs of 20Mbps when it should be giving me the correct reading (150Mbps). Is there a maximum bandwidth it graphs or can this be edited so that I get proper graphs?
Re: Cacti Bandwidth Monitoring
Also don't forget to change to SNMP v2 or higher since there is no such thing as 64 bit counters in the SNMP v1 MIB. On Mon, Nov 29, 2010 at 9:24 AM, Peter Rudasingwa peter.rudasin...@altechstream.rw wrote: Hi, I have a cacti server running and it has been working fine so far except for one interface which has an average of 150Mbps going through it now. Before when I had less than 120Mbps I got proper graphs but of late it gives me graphs of 20Mbps when it should be giving me the correct reading (150Mbps). Is there a maximum bandwidth it graphs or can this be edited so that I get proper graphs? -- Best Regards, Peter Rudasingwa *ALTECH STREAM RWANDA Ltd* ICT Park Boulevard de L'Umuganda P.O.Box 6098 Kigali, Rwanda Telephone: (+250) 580532/5 Mobile: (+250) 0788406685 *Affordable Broadband Solutions* -- Mike Bartz m...@bartzfamily.net
