lowering CPU impact on dropping multicast packets

From: Koen Zeilstra (koen@koenzeilstra.com)
Date: Thu Nov 23 2006 - 04:33:12 ART

• Next message: david robin: "Re: standby name and nating"
• Previous message: Lab Rat #109385382: "RE: auth-proxy method lists for authentication."
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]

Hi group,

Imagine the following scenario. A low speed customer (2Mbps for example)
joins a high rate multicast stream say 5Mbps. On the provider router the
excess of packets will be dropped. I presume this is done by the CPU. If
this happens a lot the provider router will suffer. Is there a way to drop
the packets without interfering the CPU?

I presume the 'ip multicast rate-limit' will also require CPU attention.

'no ip mroute-cache' causes mcast packets to be switched in hardware over
interfaces, this has imho nothing to do with it.

thanks,

Koen

• Next message: david robin: "Re: standby name and nating"
• Previous message: Lab Rat #109385382: "RE: auth-proxy method lists for authentication."
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]

This archive was generated by hypermail 2.1.4 : Fri Dec 01 2006 - 08:05:48 ART