Dear All, It is a Tagged port connecting to our multi layer switch, where we tagged so many vlans which is not needed (This port is configured for IBGP with a dot1q vlan on GSR, and the other side multilayer switch allowing so many vlans, this is configured by earlier engineer, right now we are not using IBGP on this port). Once I shutdown the port everything back to normal.
As Jeff mentioned below, it is true in my case. These unknown packets coming from our multilayer switch to GSR made CPU process high. // Net Input is a process that handles "unknown" types of Packets. These packets get sent directly to NULL, thus being black-holed. The CPU is spiking because your input queue is getting hit hard with whatever these packets are and is having to make a send to Null/discard decision. // --- By Jeff Regards, Bharath Kondi On Wed, Oct 7, 2009 at 9:22 PM, Oliver Boehmer (oboehmer) < [email protected]> wrote: > where was this cable connected to? > > ------------------------------ > *From:* bharath kondi [mailto:[email protected]] > *Sent:* Wednesday, October 07, 2009 15:21 > *To:* Oliver Boehmer (oboehmer) > *Cc:* [email protected]; BHARATH KONDI; [email protected] > *Subject:* Re: [c-nsp] GSR CPU Process is very HIGH 95% > > Thanks Oliver. My problem solved. I was disconnecting each and every cable > connected to GSR and check the process and found one unwanted cable > connecting and generating traffic. Now everything back to normal. > Thanks for your support. > > Regards, > Bharath Kondi > > > On Wed, Oct 7, 2009 at 8:57 PM, Oliver Boehmer (oboehmer) < > [email protected]> wrote: > >> bharath kondi <> wrote on Wednesday, October 07, 2009 14:32: >> >> > Hi All, >> > >> > I am seeing a strange thing in our GSR 12000, CPU process reached >> > 95%. Below is the findings, can anyone help me ASAP. >> > >> > The highest usage is Net Input. What is Net Input? Please help me >> > guys. >> > >> > Thanks in advance. >> > >> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> > >> > 66 1485974962884865916 0 17.91% 15.99% 16.04% 0 Net >> > Input >> > >> > >> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> > >> > GW-01-KLS-MY#show processes cpu >> > >> > CPU utilization for five seconds: 95%/71%; one minute: 96%; five >> > minutes: 95% >> >> are you switching traffic across the PRP/GRP's Management Ethernet >> ports? Those must only be used for management, i.e. traffic from/to the >> GSR .. >> >> oli >> > > > > > -- (¨`·.·´¨) With --------------------`·.¸(¨`·.·´¨) Lots of ------- (¨`·.·´(¨`·.·´¨)¸.·´ Love & Luck... `·.¸.·´ ♥ ηẩภî... ჱܓ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
