Re: [nsp] When does a 2948G-L3 use the CPU to forward packets?

From: Andrew (arousch@home.com)
Date: Sat Dec 16 2000 - 23:28:31 EST


You need to provide more information. What switching method are you
using? What types of filters, route maps, policies to you have applied to
your interfaces? Do you have churning traffic? Do you have steady
traffic? Are you natting? There are countless variables.

-A

At 09:34 PM 12/16/00 +0100, sthaug@nethelp.no wrote:
>Is there anybody here who can explain a bit more about how the 2948G-L3
>hardware works (using it as a router, not an L2 switch!), and under what
>circumstances hardware is *not* used to forward packets?
>
>Background: We have observed significant problems with the 2948G-L3 and
>asymmetric traffic patterns (e.g. traffic going out one port but little
>or no traffic coming *in* the same port). CPU load seems to shoot through
>the roof. As soon as we are able to establish symmetric traffic patterns,
>CPU usage falls to normal levels - presumably indicating that hardware
>is being used to forward the packets.
>
>Steinar Haug, Nethelp consulting, sthaug@nethelp.no



This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:23 EDT