RE: [LARTC] Problem creating a lot of classes

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

Thank you Martias.  I downloaded Devik's patch, which includes a patched TC binary.  Works like a charm.


-----Original Message-----
From: Matias Bjørling [mailto:mb@nerdit.dk]
Sent: Tuesday, May 20, 2003 9:32 AM
To: Harkisoon Sharan (CCI-Gainesville)
Cc: lartc@mailman.ds9a.nl
Subject: Re: [LARTC] Problem creating a lot of classes


Hey

It's a bug in TC, upgrade to a newer version and it should be fixed. I had
the same problem on a dual xeon 2.4 ghz with crashed with 100 classes
loaded. Did'nt understand why...

Regards

Matias Bjørling
----- Original Message -----
From: "Harkisoon Sharan (CCI-Gainesville)" <Sharan.Harkisoon@cox.com>
To: <lartc@mailman.ds9a.nl>
Sent: Monday, May 19, 2003 4:21 PM
Subject: [LARTC] Problem creating a lot of classes


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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