[cisco-bba] need help on troubleshooting high cpu on 7206 NPE300 LNS

Wed Jan 24 19:47:34 EST 2007

Dear all

Thank you for all of your input. I configured vpdn ip udp ignore checksum
& I have corrected a mis-config on our radius server (passing compression attribute to cisco) now that the L2TP data daemon is running normal, but I am still facing high cpu on Pool Manager & IP Input
anymore suggestions?

CPU utilization for five seconds: 91%/44%; one minute: 91%; five minutes: 86% PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process    1           4       175         22  0.00%  0.00%  0.00%   0 Chunk Manager       2      487964   5014024         97  0.00%  0.00%  0.00%   0 Load Meter          3     1606476    870141       1846  0.00%  0.00%  0.00%   0 CEF Scanner         4    22428792   3318958       6757  0.00%  0.06%  0.05%   0 Check heaps         5   481842360 102963163       4679  9.05%  9.70%  7.90%   0 Pool Manager       37  11275060121049358292       1074 36.02% 35.07% 32.40%   0 IP Input Thank You

Anthony

> Date: Wed, 24 Jan 2007 02:37:10 +0200> From: nitzan.tzelniker at gmail.com> To: antnada at hotmail.com> Subject: Re: [cisco-bba] need help on troubleshooting high cpu on 7206 NPE300 LNS> CC: cisco-bba at puck.nether.net> > You can try> > vpdn ip udp ignore checksum> > Nitzan> > On 1/24/07, Anthony Law <antnada at hotmail.com> wrote:> > Dear all,> >> > We have a 7206 w/NPE300 running as a LNS terminating pppoe sessions from our> > telco. We are concurrently running around 360 pppoe sessions.> >> > Recently. I noticed that our 7206 is having extremely high cpu, at times> > going to 100%, please see below> >> > CPU utilization for five seconds: 99%/42%; one minute: 99%; five minutes:> > 99%> > PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process> > 1 0 75 0 0.00% 0.00% 0.00% 0 Chunk Manager> >> >> > 5 472509060 101324023 4663 7.65% 8.80% 8.84% 0 Pool Manager> >> > 37 10810547881019294234 1060 22.79% 25.16% 25.51% 0 IP Input> >> >> > 101 705044020 800103660 881 18.89% 21.35% 19.34% 0 L2TP data> > daemon> > 102 53153196 10197928 5212 2.19% 0.46% 0.45% 0 L2TP mgmt> > daemon> >> >> > It seemed that Pool Manager + IP Input + L2TP data daemon together is> > causing this issue. I was searching for documents regarding this on google> > and came to this mailing list. I am wondering if you guys can help me out by> > identifying the mis-configuration that I have on my end as it is my> > understanding that a 7206 should at least take close 1000 pppoe sessions.> > Thank You in advance for your input.> >> >> > hostname LNS> > !> > boot system slot1:c7200-is-mz.122-32.bin> > boot system slot1:c7200-is-mz.120-3.T3> > aaa new-model> > aaa authentication login default local> > aaa authentication login no_rad line> > aaa authentication ppp default group radius local> > aaa authentication ppp vpdn group radius> > aaa authorization network default group radius> > aaa authorization configuration default group radius> > aaa accounting delay-start> > aaa accounting exec default start-stop group radius> > aaa accounting network default start-stop group radius> > enable secret 5 XXXXXXXXXXXXXXXXXXXXXXXXXXX> > !> > clock timezone EST -5> > clock summer-time EDT recurring> > ip subnet-zero> > no ip source-route> > ip cef> > !> > !> > ip name-server XXXXXX> > ip name-server XXXXXX> > ip name-server XXXXXX> > !> > vpdn enable> > !> > vpdn-group XXXXXXXX> > accept-dialin> > protocol l2tp> > virtual-template 1> > terminate-from hostname XXXXXX> > local name XXXXXXX> > lcp renegotiation always> > !> > interface FastEthernet0/0> > ip address X.X.X.X 255.255.255.192> > no ip mroute-cache> > duplex full> > !> > interface FastEthernet1/0> > no ip address> > no ip mroute-cache> > duplex full> > !> > interface FastEthernet1/0.401> > description !!XXXXXXXXXXXXXXXXXXXXXXXX!!> > encapsulation dot1Q 401> > ip address 10.70.X.X 255.255.255.252> > no ip mroute-cache> > !> > interface FastEthernet2/0> > description !!Internet Feed!!> > ip address Y.Y.Y.Y 255.255.255.252> > no ip mroute-cache> > duplex full> > !> > interface Virtual-Template1> > mtu 1492> > ip unnumbered FastEthernet2/0> > peer default ip address pool internet1 internet2> > ppp authentication pap vpdn> > !> > ip local pool internet1 A.A.A.A B.B.B.B> > ip local pool internet2 C.C.C.C D.D.D.D> > ip classless> > ip route 0.0.0.0 0.0.0.0 Y.Y.Y.Y> > no ip http server> > !> > ip radius source-interface FastEthernet0/0> > radius-server host X.X.X.X auth-port 1645 acct-port 1646> > radius-server host X.X.X.X auth-port 1645 acct-port 1646> > radius-server key 7 ZZZZZZZZZZZZZZZ> >> > Anthony> >> > ________________________________> > Be one of the first to try Windows Live Mail.> > _______________________________________________> > cisco-bba mailing list> > cisco-bba at puck.nether.net> > https://puck.nether.net/mailman/listinfo/cisco-bba> >> >> >
_________________________________________________________________
Be one of the first to try Windows Live Mail.
http://ideas.live.com/programpage.aspx?versionId=5d21c51a-b161-4314-9b0e-4911fb2b2e6d
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-bba/attachments/20070124/b131bcd6/attachment.html 