[LARTC] I seem to have a problem with HTB

From: Leszek Olszewski <rewt@post.pl>
To: lartc@vger.kernel.org
Subject: [LARTC] I seem to have a problem with HTB
Date: Thu, 13 Dec 2001 09:01:10 +0000	[thread overview]
Message-ID: <marc-lartc-100823414120710@msgid-missing> (raw)

Hello,

I have compiled HTB into kernel 2.4.16 and set up simple traffic shaping 
just to figure how it works. My init script looks as follows:

tc qdisc del dev eth1 root
tc qdisc add dev eth1 root handle 1: htb default 30
tceth0="tc class add dev eth1"
$tceth0 parent 1: classid 1:1 htb rate 128kbit burst 2k
$tceth0 parent 1:1 classid 1:10 htb rate 128kbit burst 2k
$tceth0 parent 1:1 classid 1:20 htb rate 64kbit ceil 96kbit burst 2k
$tceth0 parent 1:1 classid 1:30 htb rate 1kbit ceil 96kbit burst 2k
tcqdisc="tc qdisc add dev"
$tcqdisc eth1 parent 1:10 handle 10: sfq perturb 10
$tcqdisc eth1 parent 1:20 handle 20: sfq perturb 10
$tcqdisc eth1 parent 1:30 handle 30: sfq perturb 10
u32="tc filter add dev eth1 protocol ip parent 1:0 prio 1 u32"
$u32 match ip protocol 1 0xff flowid 1:10
$u32 match ip sport 22 0xffff flowid 1:10
$u32 match ip sport 119 0xffff flowid 1:10
$u32 match ip sport 80 0xffff flowid 1:20
$u32 match ip sport 110 0xffff flowid 1:20

- Pretty much the example script from Advanced Routing HowTo. I have 
Internet on eth0 and LAN via NAT on eth1.

The problem is that after appx. 6 hours or so the local network starts 
behaving strange - either it doesn't work at all or just packets from 
certain classes don't go through the NAT and get dropped. In syslog I have 
found following entries:

Dec 13 09:33:25 mail kernel: HTB delay 224640 > 5sec
Dec 13 09:33:27 mail kernel: HTB delay 224474 > 5sec
Dec 13 09:33:29 mail kernel: HTB delay 224272 > 5sec
Dec 13 09:33:32 mail kernel: HTB delay 223977 > 5sec
Dec 13 09:33:32 mail kernel: HTB delay 223973 > 5sec
Dec 13 09:33:37 mail kernel: HTB delay 223473 > 5sec
Dec 13 09:33:38 mail kernel: HTB delay 223377 > 5sec
Dec 13 09:33:38 mail kernel: HTB delay 223373 > 5sec

There is many more of them, they start to appear just at the time when the 
network starts dying.

Any ideas what is wrong pretty please ;) ??

Regards,
Leszek

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