North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: cef/process switching problem
ACL's are done in the CEF path also as long as you don't have the "log" keyword on it that causes a punt. Check the 'sh int stat' from the ingress interfaces and see which ones are showing inbound process hits. Rodney On Tue, Sep 09, 2003 at 10:33:54AM -0500, Austad, Jay wrote: > > It's 12.2 code. show ip int e0 shows that CEF is enabled on the interface. > Supposedly 12.2's CEF also handles policy routing (which is not being used > on this router). > > > -----Original Message----- > > From: Jason Frisvold [mailto:[email protected]] > > Sent: Tuesday, September 09, 2003 10:24 AM > > To: Austad, Jay > > Cc: [email protected] > > Subject: Re: cef/process switching problem > > > > > > Not sure on the MC3810 (never used one), but I know that many of the > > other Cisco routers didn't do CEF on ethernet until later revisions of > > code... There are other factors that kick it out of CEF as well.. I > > believe ACL's and Route Maps are 2 of them.. > > > > On Tue, 2003-09-09 at 11:07, Austad, Jay wrote: > > > I've got a cisco MC3810 with a bunch of DSL customers on it. CEF is > > > enabled, but when I do a show int stat, I see that almost > > 100% of the > > > outbound packets on the ethernet interface are process > > switched, and not > > > being matched in the route cache. The Input looks just > > fine, and the other > > > interfaces are borderline (usually 50% hit rate on the > > cache or a little > > > less). > > > > > > CPU is sitting pretty high on this box during the day, and > > I have strong > > > suspicions that this is why. :) > > > > > > I can't seem to find any info on why this would be > > happening or how to > > > figure out what's going on. Anyone have any suggestions? > > > > > > -jay > > -- > > --------------------------- > > Jason H. Frisvold > > Backbone Engineering Supervisor > > Penteledata Engineering > > [email protected] > > RedHat Engineer - RHCE # 807302349405893 > > Cisco Certified - CCNA # CSCO10151622 > > MySQL Core Certified - ID# 205982910 > > --------------------------- > > "Imagination is more important than knowledge. > > Knowledge is limited. Imagination encircles > > the world." > > -- Albert Einstein [1879-1955] > >
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