nanog mailing list archives
RE: cef/process switching problem
From: "Austad, Jay" <JAustad () temgweb com>
Date: Tue, 9 Sep 2003 10:33:54 -0500
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:friz () corp ptd net] Sent: Tuesday, September 09, 2003 10:24 AM To: Austad, Jay Cc: nanog () merit edu 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 almost100% of theoutbound packets on the ethernet interface are processswitched, and notbeing matched in the route cache. The Input looks justfine, and the otherinterfaces are borderline (usually 50% hit rate on thecache or a littleless). CPU is sitting pretty high on this box during the day, andI have strongsuspicions that this is why. :) I can't seem to find any info on why this would behappening or how tofigure out what's going on. Anyone have any suggestions? -jay-- --------------------------- Jason H. Frisvold Backbone Engineering Supervisor Penteledata Engineering friz () corp ptd net 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]
Current thread:
- cef/process switching problem Austad, Jay (Sep 09)
- Re: cef/process switching problem Jason Frisvold (Sep 09)
- <Possible follow-ups>
- RE: cef/process switching problem Austad, Jay (Sep 09)
- Re: cef/process switching problem Rodney Dunn (Sep 09)
- RE: cef/process switching problem Michel Py (Sep 10)