HTB + speed a bit lower than what shaped to

[Jandre Olivier <jandre@xxxxxxxxxxxxx>]

Hi Guys,

I have a little problem i dont understand why its happening,
Initially i thought it was a network problem, but then i made a 
crossover between me and the server and shaped on that interface with as 
minimal as possible config

this my test:
$TC qdisc add dev $INTERFACE root handle 1: htb default 30
$TC class add dev $INTERFACE parent 1: classid 1:1 htb rate 10Mbit

# POOL1
$TC class add dev $INTERFACE parent 1:1 classid 1:2 htb rate 512Kbit 
ceil 512Kbit prio 0

# DEFAULT
$TC class add dev $INTERFACE parent 1:1 classid 1:30 htb rate 10Mbit 
ceil 10Mbit prio 3

# MAILSERVER
$TC class add dev $INTERFACE parent 1:1 classid 1:12 htb rate 32Kbit 
ceil 32Kbit prio 0


$TC qdisc add dev $INTERFACE parent 1:30 handle 30: sfq perturb 10
$TC qdisc add dev $INTERFACE parent 1:12 handle 12: sfq perturb 10

# dev eth1 - creating filters with marked packets

$TC filter add dev $INTERFACE parent 1:0 protocol ip handle 12 fw 
classid 1:12
$TC filter add dev $INTERFACE parent 1:0 protocol ip handle 30 fw 
classid 1:30

iptables -t mangle -A POSTROUTING -d 192.168.2.1/32 -j MARK --set-mark 12
iptables -t mangle -A POSTROUTING -d 192.168.2.1/32 -p tcp --sport 22 -j 
MARK --set-mark 30

This all goes into the right classes, but when i do a download from the 
mailserver, im suppose to get 4Kb, and it starts at 5Kb , which is 
burst, and then move down towards 4kb then 3kb and stays around there, 
but never goes to 4 on the dot.

Is this normal or should it be perfectly 4Kb/s ?

Am i doing something wrong?

Thanks

Jandre



--
Regards
Jandre

		"Some people are alive only because
		 it is illegal to kill them."

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