May 2011 - mice-discuss - lists.micemn.net

Re: Cacti Graph using SNMPv1?

by Andrew Hoyos

On May 25, 2011, at 11:33 AM, David Farmer wrote: > On 5/25/11 11:07 CDT, Jay Hanke wrote: >>> Did you check that the Data Source for the graph is also using the >>> 64-bit counters? >>> >>>> >>>> Nothing special in logs either showing a problem. >>>> >>>> Steve - your own monitoring showing problems at all with data >> >> Are you looking at Gi-0/2? > > it is possible this is a problem on the Cisco side too, that port Gi-0/2 on the 3560E got changed to being in a port channel sometime this creates weird issues. They usually go away after a reboot. Yeah, I've seen this same thing on a few occasions when adding/removing interfaces from port channels. Also, double check you've got "snmp-server ifindex persist" set in the config, as you might be polling something else too. ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Re: Cacti Graph using SNMPv1?

by David Farmer

On 5/25/11 11:07 CDT, Jay Hanke wrote: >> Did you check that the Data Source for the graph is also using the >> 64-bit counters? >> >>> >>> Nothing special in logs either showing a problem. >>> >>> Steve - your own monitoring showing problems at all with data > > Are you looking at Gi-0/2? it is possible this is a problem on the Cisco side too, that port Gi-0/2 on the 3560E got changed to being in a port channel sometime this creates weird issues. They usually go away after a reboot. > Usually SNMPv1 issues will appear at right about 100 Mb/s on a five > minute average. We're pulling the po1 interface well over a Gig > without an issue. Also, the traffic will show up with spike and then > nothing (when the counter rolls over). > > Jay > > ######################################################################## > > To unsubscribe from the MICE-DISCUSS list, click the following link: > http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1 -- =============================================== David Farmer Email:farmer@umn.edu Networking & Telecommunication Services Office of Information Technology University of Minnesota 2218 University Ave SE Phone: 612-626-0815 Minneapolis, MN 55414-3029 Cell: 612-812-9952 =============================================== ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Re: Cacti Graph using SNMPv1?

by Steve Howard

On 05/25/2011 10:53 AM, Mike Horwath wrote: > Steve - your own monitoring showing problems at all with data I haven't got around to setting up the monitoring. Yours has worked great so I didn't bother (yet). Steve ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Re: Cacti Graph using SNMPv1?

by Owen DeLong

On May 25, 2011, at 9:01 AM, Justin Krejci wrote: > On Wed, 2011-05-25 at 15:53 +0000, Mike Horwath wrote: >> On 5/24/11 6:28 PM, "Justin Krejci" <jkrejci(a)USINTERNET.COM> wrote: >> >>> >>> 'micemn-gateway-2.micemn.net - Traffic - Gi0/2' in Cacti is exhibiting >>> signs of using SNMPv1 counters (frequent gaps at higher bandwidth usage) >>> >>> Is this a known issue? If not I presume someone at iphouse can fix this >>> easily. >>> >>> The "Fix64bit" plugin for Cacti is great for correcting this condition on >>> the fly if my assumption on the problem is correct. >> >> Your assumption is wrong unfortunately. >> >> I wish I had made a mistake, but stats.micemn.net's Cacti config is 64bit >> for gathering of stuff. >> >> And using SNMPv2 according to the configuration. > > Did you check that the Data Source for the graph is also using the > 64-bit counters? > This would be the question of ifInOctets (32 bit) vs. ifInHCOctets (64 bit) IIRC. In case the reference is helpful. Owen >> >> Nothing special in logs either showing a problem. >> >> Steve - your own monitoring showing problems at all with data? >> > > ######################################################################## > > To unsubscribe from the MICE-DISCUSS list, click the following link: > http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1 ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Re: Cacti Graph using SNMPv1?

by Jay Hanke

> Did you check that the Data Source for the graph is also using the > 64-bit counters? > >> >> Nothing special in logs either showing a problem. >> >> Steve - your own monitoring showing problems at all with data Are you looking at Gi-0/2? Usually SNMPv1 issues will appear at right about 100 Mb/s on a five minute average. We're pulling the po1 interface well over a Gig without an issue. Also, the traffic will show up with spike and then nothing (when the counter rolls over). Jay ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Re: Cacti Graph using SNMPv1?

by Justin Krejci

On Wed, 2011-05-25 at 15:53 +0000, Mike Horwath wrote: > On 5/24/11 6:28 PM, "Justin Krejci" <jkrejci(a)USINTERNET.COM> wrote: > > > > >'micemn-gateway-2.micemn.net - Traffic - Gi0/2' in Cacti is exhibiting > >signs of using SNMPv1 counters (frequent gaps at higher bandwidth usage) > > > >Is this a known issue? If not I presume someone at iphouse can fix this > >easily. > > > >The "Fix64bit" plugin for Cacti is great for correcting this condition on > >the fly if my assumption on the problem is correct. > > Your assumption is wrong unfortunately. > > I wish I had made a mistake, but stats.micemn.net's Cacti config is 64bit > for gathering of stuff. > > And using SNMPv2 according to the configuration. Did you check that the Data Source for the graph is also using the 64-bit counters? > > Nothing special in logs either showing a problem. > > Steve - your own monitoring showing problems at all with data? > ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Re: Cacti Graph using SNMPv1?

by Mike Horwath

On 5/24/11 6:28 PM, "Justin Krejci" <jkrejci(a)USINTERNET.COM> wrote: > >'micemn-gateway-2.micemn.net - Traffic - Gi0/2' in Cacti is exhibiting >signs of using SNMPv1 counters (frequent gaps at higher bandwidth usage) > >Is this a known issue? If not I presume someone at iphouse can fix this >easily. > >The "Fix64bit" plugin for Cacti is great for correcting this condition on >the fly if my assumption on the problem is correct. Your assumption is wrong unfortunately. I wish I had made a mistake, but stats.micemn.net's Cacti config is 64bit for gathering of stuff. And using SNMPv2 according to the configuration. Nothing special in logs either showing a problem. Steve - your own monitoring showing problems at all with data? -- Mike Horwath ipHouse - Welcome home! drechsau(a)iphouse.net The universe is an island, surrounded by whatever it is that surrounds universes. - Berkeley Fortune ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Re: NANOG

by Jay Hanke

>> On Mon, May 23, 2011 at 4:13 PM, Jay Hanke <jayhanke(a)mankatonetworks.net> wrote: >>> Is anyone going to NANOG in Denver? >> >> i will be. is there interest in a twin cities networking geeks dinner? > > I'm on the fence. Combo WI/MN networking geeks dinner, that might do the trick? :) I'm in. Let's make it happen! ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 25, 2011

Cacti Graph using SNMPv1?

by Justin Krejci

'micemn-gateway-2.micemn.net - Traffic - Gi0/2' in Cacti is exhibiting signs of using SNMPv1 counters (frequent gaps at higher bandwidth usage) Is this a known issue? If not I presume someone at iphouse can fix this easily. The "Fix64bit" plugin for Cacti is great for correcting this condition on the fly if my assumption on the problem is correct. ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 24, 2011

Re: NANOG

by Andrew Hoyos

On May 23, 2011, at 4:18 PM, steve ulrich wrote: > On Mon, May 23, 2011 at 4:13 PM, Jay Hanke <jayhanke(a)mankatonetworks.net> wrote: >> Is anyone going to NANOG in Denver? > > i will be. is there interest in a twin cities networking geeks dinner? I'm on the fence. Combo WI/MN networking geeks dinner, that might do the trick? :) ######################################################################## To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

May 24, 2011