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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: 7500 and DCEF
On Wed, 07 Jan 2004, I posted: >> They recently refreshed the platform with RSP16, VIP8, and MX. It's still >> a viable platform for many medium size providers. > >As an exercise see if you can determine when this 7513: >http://noc.ilan.net.il/stats/ILAN-CPU/new-gp-cpu.html >swapped from an RSP8 to an RSP16 in the past 2 months. After posting this a month ago, I felt I also needed to post a follow-up on the matter. If one looks at the CPU graph now, you will see that I was able to get the RSP16 to drop from 54% to 43% via altering all out ACLs from named to numbered. This is due to a bugid: CSCec07566 (Packets for interface with named ACL are not dcef switched) which affects many 12.2S versions. Next I added "ip multicast-routing distributed" and "ip mroute-cache distributed" to all multicast enabled interfaces, A reload 6 days ago caused the CPU to drop from 43% to 22% - probably due to some unknown reason - whereby all the DCEF changes were not taking hold. Lastly, on all slow serial interfaces (2Mb/sec and under), I changed the queuing to "fair-queue" and that caused DCEF to kick in and bought another 10% reduction. I am now at around 10% CPU and happy. I'd like to thank Rodney Dunn of Cisco for suggesting many DCEF fixes and configuration optimizations. -Hank
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