Unfortunately I don't know of anyway to check the hardware buffer(s), and my "guess" is per line card.
I would also run a "show process cpu" while the overruns incrementing (if you can) to see if the utilization is above 90%. I've heard of this causing overruns in the past. I haven't experienced it myself though. From: drew.wea...@thenap.com To: syn...@live.com; cisco-nsp@puck.nether.net Date: Thu, 5 Nov 2009 13:58:06 -0500 Subject: RE: [c-nsp] Gigabit Interface Input Errors Thanks for responding, As far as you're aware is there a way to check the hardware buffer to see if this is the case, and is this buffer usually per line card, or per slot (both/either?) -Drew From: Darin Herteen [mailto:syn...@live.com] Sent: Thursday, November 05, 2009 1:54 PM To: Drew Weaver; cisco-nsp@puck.nether.net Subject: RE: [c-nsp] Gigabit Interface Input Errors Drew, Overruns are usually caused by the receiving hardware buffer being "flooded" for lack of a better term because the input rate exceeded the receiver's ability to handle the traffic. Darin > From: drew.wea...@thenap.com > To: cisco-nsp@puck.nether.net > Date: Thu, 5 Nov 2009 13:41:16 -0500 > Subject: [c-nsp] Gigabit Interface Input Errors > > Hi, > > I noticed I'm seeing some Input errors on a gigabit ethernet interface: > > 70 input errors, 0 CRC, 0 frame, 70 overrun, 0 ignored > > the number of input errors seems to increment along with the overrun counter which I assume means that the actual errors are overrun errors. > > Does anyone have any tips on finding out what is causing it to overrun? > > My first inclination is to assume it is not a huge problem because of the amount of packets that are flowing through this interface: > > 2367831951 packets input, 247924231216 bytes, 0 no buffer 70 out of 2367831951 is a fairly small number but I wanted to check and see if you all had any thoughts. > > thanks, > -Drew > > > > > > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ Bing brings you maps, menus, and reviews organized in one place. Try it now. _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/177141665/direct/01/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/