Re: High CPU load on 7609

So is this a result of using PBR in VRFs? Or will using PBR period, cause
all packets ( on that interface ) to hit the CPU?

On Thu, Oct 27, 2011 at 5:16 AM, Radioactive Frog <pbhatkoti_at_gmail.com>wrote:

> >>>I cant believe given the state of the world that cisco is still selling
> products where a feature that can be configured can take slow down the
> system that much.
>
> Totally agreed Joseph.
> I'd expect at least it captured somewhere in the 'show proc cpu' command so
> that u can see what is causing it. once it's PBR'd (L3) , all packets are
> gonna punt onto the CPU.
> May be it's documented somewhere and we don't know that secret location on
> CCO yet :)
>
> Sajjad -
> >>>The only workaround that i've think of was to make it L2 toward next-hop
> and removing VRF in configuration.
>
> Do u mean u turned it into L2 switch? If so what a waste of 760X! :(
>
>
> On Thu, Oct 27, 2011 at 1:39 AM, Joseph L. Brunner
> <joe_at_affirmedsystems.com>wrote:
>
> > Very good to know that Sajjad.
> >
> > Thanks for posting back what did it.
> >
> > I cant believe given the state of the world that cisco is still selling
> > products where a feature that can be configured can take slow down the
> > system that much.
> >
> >
> >
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> > Sajjad Najafizadeh
> > Sent: Wednesday, October 26, 2011 10:08 AM
> > To: Radioactive Frog
> > Cc: Cisco certification
> > Subject: Re: High CPU load on 7609
> >
> > Hi all
> >
> > First of all I've change IOS to 12.2(18) , but the issue exist.
> > I used VRF light to send traffic to next hop as PBR killed the CPU before
> .
> > The only workaround that i've think of was to make it L2 toward next-hop
> > and
> > removing VRF in configuration.
> > The issue solved with this .
> > I do not believe 7600 router can not handle VRF and BGP with some PBR in
> > same time with max traffic of 4gbps.
> >
> > Thanks again to all for support.
> >
> > REgards
> >
> > On Wed, Oct 26, 2011 at 1:21 PM, Radioactive Frog <pbhatkoti_at_gmail.com
> > >wrote:
> >
> > > last week I had same issue on 6509. Weird thing as nothing will be
> shown
> > in
> > > 'show proc cpu sorted' output.
> > >
> > > The root cause of my issue was someone added route-map (matching ACL
> and
> > > set next hop). There were about 8000+ users! University environment.
> > > The core 6509 was running like a dog!
> > >
> > > The fix: implement VRF's . After removing route-maps CPU was back to
> > normal
> > > 40-55% (was 95-100% constantly for 10 days).
> > >
> > >
> > > HTH
> > >
> > > Frog
> > >
> > >
> > > On Wed, Oct 26, 2011 at 6:39 PM, Sajjad Najafizadeh <
> > najafizadeh_at_gmail.com
> > > > wrote:
> > >
> > >> Hi all
> > >>
> > >> we have high CPU load on 7609 router .
> > >> there is no ip policy and no NAT on this router but here is the CPU
> > load.
> > >> Could any one suggest what to do ??
> > >>
> > >> *Output of sho ip proc cpu sorted :*
> > >>
> > >>
> > >> CPU utilization for five seconds: 75%/73%; one minute: 77%; five
> > minutes:
> > >> 77%
> > >> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY
> Process
> > >> 220 949800 3116922 304 1.59% 1.58% 1.43% 0 IP
> > Input
> > >>
> > >> 256 2544 3638244 0 0.15% 0.16% 0.15% 0
> > Ethernet
> > >> Msec Ti
> > >> 83 80164 61809 1296 0.15% 0.02% 0.05% 2
> Virtual
> > >> Exec
> > >> 2 30380 5976 5083 0.07% 0.05% 0.06% 0 Load
> > Meter
> > >>
> > >> 219 1132 916608 1 0.07% 0.03% 0.02% 0 IP
> ARP
> > >> Retry Age
> > >> 372 576 43514 13 0.07% 0.00% 0.00% 0 FM
> core
> > >>
> > >> 162 632 29926 21 0.07% 0.02% 0.02% 0
> > >> Per-Second
> > >> Jobs
> > >> 191 52 29866 1 0.07% 0.00% 0.00% 0 CWAN
> > >> CHOCX
> > >> PROCE
> > >> 260 1164 916616 1 0.07% 0.04% 0.05% 0 IPAM
> > >> Manager
> > >> 27 1120 29181 38 0.07% 0.02% 0.02% 0 IPC
> > >> Periodic Tim
> > >> 326 1292 126588 10 0.07% 0.03% 0.02% 0 TCP
> > Timer
> > >>
> > >> 555 89680 494908 181 0.07% 0.11% 0.11% 0 SNMP
> > >> ENGINE
> > >>
> > >> 379 72 29805 2 0.07% 0.00% 0.00% 0 PfR
> BR
> > >> Learn
> > >> 15 0 2 0 0.00% 0.00% 0.00% 0 ATM
> Idle
> > >> Timer
> > >> 14 316 31552 10 0.00% 0.00% 0.00% 0 ARP
> > >> Background
> > >> 17 0 1 0 0.00% 0.00% 0.00% 0
> > >> AAA_SERVER_DEADT
> > >> 13 25684 36715 699 0.00% 0.04% 0.05% 0 ARP
> > Input
> > >>
> > >> 12 3748 30473 122 0.00% 0.00% 0.00% 0
> > WATCH_AFS
> > >>
> > >> 16 0 1 0 0.00% 0.00% 0.00% 0 ATM
> > ASYNC
> > >> PROC
> > >> 18 0 1 0 0.00% 0.00% 0.00% 0 Policy
> > >> Manager
> > >> 22 12 6010 1 0.00% 0.00% 0.00% 0 IPC
> > Event
> > >> Notifi
> > >> 23 64 29182 2 0.00% 0.00% 0.00% 0 IPC
> > Mcast
> > >> Pendin
> > >> 24 0 500 0 0.00% 0.00% 0.00% 0 IPC
> > >> Dynamic
> > >> Cach
> > >> 11 0 2 0 0.00% 0.00% 0.00% 0 Timers
> > >>
> > >> 26 16 107 149 0.00% 0.00% 0.00% 0
> PF_Split
> > >> Sync Pr
> > >>
> > >> Regards
> > >>
> > >>
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> > >>
> > >>
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Received on Thu Oct 27 2011 - 10:22:18 ART