[squid-users] Help!!! Dummynet causing Squid machines dead??

Please help me out!!! Emergency...(Thanks.........)

I have three Squid machines working together as a cache array.
I used Dummynet to control the inter-cache bandwidth.

My three squid is 10.12.0.1, 10.12.0.2 and 10.12.0.3

I used the following commands to create pipes in each squid
For example, in Squid1:
ipfw add pipe 1 IP from 10.12.0.1 to 10.12.0.2 out
ipfw add pipe 2 IP from 10.12.0.1 to 10.12.0.3 out
ipfw pipe 1 config bw 10Mbit/s queue 75Kbytes
ipfw pipe 2 config bw 10Mbit/s queue 75Kbytes

I have another program to change the bandwidth of each pipe every half an
hour, with a lot of traffic going through the caches at the same time. So
that the configeration for a pipe can change

FROM: ipfw pipe 1 config bw 10Mbit/s queue 73Kbytes

TO: ipfw pipe 1 config bw 2Mbit/s queue 25Kbytes

Then in very short time, the machine is dead. I think the problem might
because of the setting of "queue" in the command. But I don't know how
much should be correct. I was using "bw x Mbit/s queue 6*x+13 Kbytes".

Oh, when bandwidth change from 5M to 3M ,or 8M to 5M (smaller difference),
the machines will run just fine with my 6*x+13 setting. Only steep jump
like from 8M to 2M will cause death.

Please help me out!!! This is emergency!!!!

Thank you everybody!!!
Received on Tue Oct 14 2003 - 13:20:31 MDT