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*
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
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.rudasingwa@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*
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*
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_item09186a0... 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.rudasingwa@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 =========================
Do you have it set for 64 bit counters? Sent via DROID on Verizon Wireless -----Original message----- From: Peter Rudasingwa <peter.rudasingwa@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*
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.....
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*
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?
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.rudasingwa@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 mob@bartzfamily.net
participants (9)
-
Aaron Wendel -
Bill Blackford -
Brian Raaen -
Carlos Martinez-Cagnazzo -
Ingo Flaschberger -
Mike Bartz -
Peter Rudasingwa -
Ryan Pavely -
Wil Schultz