Hi,
I have a similar setup here, and what I did
was instead of shaping the traffic with tc, I used mod_cband on apache2 to
limit concurrent connections and bandwidth. There is a very helpful reference
on getting it up and running here: http://www.howtoforge.com/mod_cband_apache2_bandwidth_quota_throttling
Hope that helps a bit
Charlie Meyer
University of Illinois at Urbana-Champaign
Department of Computer Science -
Undergraduate
cemeyer2@xxxxxxxx
From:
lartc-bounces@xxxxxxxxxxxxxxx [mailto:lartc-bounces@xxxxxxxxxxxxxxx] On Behalf Of e.janz@xxxxxxxxxxxxxxxxx
Sent: Friday, September 08, 2006
7:40 AM
To: lartc@xxxxxxxxxxxxxxx
Subject: Re: htb traffic
shaping problem
Good afternoon,
your
configuration seems correct to me. Could you send us the output of "tc -s
-d class show dev eth0" during your probes?
What
kernel and tc versions are you using?
Regards,
Eric
Janz
Departamento de Sistemas
Grupo Barceló Viajes
C\ 16 de Julio, 75
07009 Polígono Son Castelló
Palma de Mallorca - Baleares
Tel.: +34 971 448030
Fax.: +34 971 436986
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Asunto
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htb traffic shaping problem
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Hello.
I have a linux server connected to a gigabit lan,
and though that lan to a
768kbps/768kbps DSL modem.
I'm trying to shape my webserver running on port
80/443 down to 512kbps,
while leaving all other ports alone. The
current configuration script that
I'm using is as follows:
tc qdisc del
dev eth0 root
tc qdisc add dev eth0 root handle 1: htb default
99
tc class add dev eth0 parent 1: classid 1:1 htb
rate 1000mbit ceil 1000mbit
tc class add dev eth0 parent 1:1 classid 1:10 htb
rate 512kbit ceil 512kbit
tc qdisc add dev eth0 parent 1:10 handle 10: sfq
tc class add dev eth0 parent 1:1 classid 1:99 htb
rate 900mbit ceil 1000mbit
tc qdisc add dev eth0 parent 1:99 handle 99: sfq
tc filter add dev eth0 protocol ip parent 1: u32
match ip sport 80 0xffff
flowid 1:10
tc filter add dev eth0 protocol ip parent 1: u32
match ip sport 443 0xffff
flowid 1:10
1:10 seems to be getting the correct traffic from
port 80 and 443 while
everything else is run to 1:99. The problem
is that, while 1:10 is slowing
the connection down to a degree, it's nowhere near
the set limit. For
example: the connection will start out around
50kBps, and then suddenly
bounce to over 1MBps, far exceeding it's 64kBps
setting.
Setting the parent down to 512kbits seems to work
correctly, but it
cripples the local network.
Can anyone point out what I've done incorrectly,
or is this a bug?
Thank you.
-Ryan Power
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