[LARTC] Problem creating a lot of classes

["Harkisoon Sharan (CCI-Gainesville)" <Sharan.Harkisoon@cox.com>]

Hello,

I'm looking for a little advice.  The following example works great for me on a small scale test, but I'm trying to implement this on a larger scale for a /22 address space, where every user is commited 1mbit of bandwidth.  Unfortunately, when I try to create over 600 classes, I get a kernel panic (the threshold is somewhere between 600-750 for me).

I am using a Dell Poweredge 2450 with 1gig of ram, dual 733mhz, with a standard Redhat9 install/kernel.

Any suggestions, or alternative configurations would be appreciated.

Thanks,
Sharan Harkisoon





Here's the script:

#!/bin/sh

ingress=eth0
egress=eth1
downstream=1mbit
upstream=1mbit

#clear shaping on interfaces
tc qdisc del dev $egress root

tc qdisc add dev $egress root handle 1: htb default 1

tc class add dev $egress classid 1:1 htb rate $downstream
tc class add dev $egress classid 1:2 htb rate $downstream
tc class add dev $egress classid 1:3 htb rate $downstream
..
#ommitted
..
tc class add dev $egress classid 1:1021htb rate $downstream



tc filter add dev $egress protocol ip prio 1 u32 match ip dst 24.136.40.2 flowid 1:1
tc filter add dev $egress protocol ip prio 1 u32 match ip dst 24.136.40.3 flowid 1:2
tc filter add dev $egress protocol ip prio 1 u32 match ip dst 24.136.40.4 flowid 1:3
..
#ommitted
..
tc filter add dev $egress protocol ip prio 1 u32 match ip dst 24.136.43.254 flowid 1:1021

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