RE: [Asterisk-Users] VOIP CBQ BandLimit HELP!!

[usedcanon]

IAX2 does not use RTP, and is fixed to port 4569 so the script works. Whereas SIP uses RTP and the RTP port is dynamicalyy allocated. Port 5060 is used only for signalling not media.

 

There are ways of forcing RTP on specific ports, I will let others comment on that as I have no first hand experiance of that.

 

Umar.

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Carlos Arnt
Sent: 01 June 2004 05:07
To: [EMAIL PROTECTED]
Subject: Re: [Asterisk-Users] VOIP CBQ BandLimit HELP!!

That's great.

 

Maybe i will ask a nonsense question.

Let go then :

Sip uses RTP right ? So  open a SIP channel 5060 i have alot of RTP packets .

Did i don't need mark this RTP packets too ??

 

I mean IAX2 use RTP  ? In you script i see that i MARK IAX2 then i can control the rate and give

to my VOIP connection more priority then the other services, (Web,Mail,FTP etc), always making the voip connection the best possible.

That's great, awesome!

 

But in your script ? If i  change this :

 

 iptables -t mangle ${IPTOP} PREROUTING -p udp -m udp --dport 4569 -

 j MARK --set-mark 0x1

 iptables -t mangle ${IPTOP} PREROUTING -p udp -m udp --dport 4569 -

 j RETURN

 

to this ?

 

 iptables -t mangle ${IPTOP} PREROUTING -p udp -m udp --dport 5060 -

 j MARK --set-mark 0x1

 iptables -t mangle ${IPTOP} PREROUTING -p udp -m udp --dport 5060 -

 j RETURN

 

All my SIP connections will receive now the best priority in the link ??

Sorry the question again but and the RTP packets ???

 

Can with this script give from my link 512up and 512down 90% to Voip when used and let the rest (Web,FTP,Mail), with the rest 10%, so when the VoIP finish give more to the others services???

 

Anyway thanks alot for the answer !

 

Carlos.

 

On Tue, 1 Jun 2004 09:30:29 -0400, Andrew Kohlsmith wrote:
> On Tuesday 01 June 2004 05:44, joachim wrote:
>> Do you have a working firewall ruleset for HTB, optimized for
>> voip ?
>>
>
> Here, for your viewing pleasure, is my htb script.  I am *positive*
> it can be improved upon.  I found I had to put the bulk traffic in
> a separate HTB "branch" or otherwise it would tend to borrow from
> the VOIP branch way too early and cause a lot of stutter.
>
> Again, this isn't to be taken as an official, proven and perfect
> system.  I am welcome to any suggestions or improvements.  As you
> can see from the diagram I am planning on doing some more fine
> tuning, but it works pretty damned well as is.  My next post will
> be the Cisco 2610's configuration on the other side of the link.
>
> Regards,
> Andrew
>
>
> #!/bin/sh
>
>
> TCOP="add"
> IPTOP="-A"
>
>
> if [ "$1" == "stop" ]; then
> echo "Stopping..."
> TCOP="del"
> IPTOP="-D"
> fi
>
>
> #          +---------+
> #          | root 1: |
> #          +---------+
> #               |
> # +----------------------------+
> # |         class 1:1          |
> # +----------------------------+
> #   |           |           |
> # +----+      +----+      +----+
> # |1:10|      |1:20|      |1:30|
> # +----+      +----+      +----+
> #               |
> #      +--------+--------+
> #      |        |        |
> #   +-----+  +-----+  +-----+
> #   |1:100|  |1:101|  |1:102|
> #   +-----+  +-----+  +-----+
>
>
> # 1:10 is the class for VOIP traffic, pfifo qdisc
> # 1:20 is for bulk traffic (htb, leaves use sfq)
> # 1:30 is the class that interactive and TCP SYN/ACK traffic (sfq
> qdisc)
>
>
> # 1:20 is further split up into different kinds of bulk traffic:
> web, mail and # everything else.  1:100-102 fight amongst
> themselves for their slice of excess
> # bandwidth, and in turn 1:10,20 and 30 then fight for any excess
> above their # minimum rates.
>
> # which interface to throw all this on (DSL)
> IF=eth2
>
>
> # ciel is 75% of max rate (768kbps)
> # rate is 65% of max rate
> # we don't let it go to 100% because we don't want the DSL modems
> to have a ton
> # of packets in their buffers.  *we* want to do the buffering.
>
>
> RATE=576
> CEIL=640
> #RATE=450
> #CEIL=500
>
>
> tc qdisc ${TCOP} dev ${IF} root handle 1: htb default 102
> tc class ${TCOP} dev ${IF} parent 1:   classid 1:1 htb rate
> ${RATE}kbit ceil ${CEIL}kbit
>
> tc class ${TCOP} dev ${IF} parent 1:1  classid 1:10 htb rate 64kbit
> ceil ${RATE}kbit prio 1
> tc class ${TCOP} dev ${IF} parent 1:1  classid 1:20 htb rate 64kbit
> ceil ${RATE}kbit prio 2
>
> tc class ${TCOP} dev ${IF} parent 1:20 classid 1:100 htb rate
> ${RATE}kbit tc class ${TCOP} dev ${IF} parent 1:20 classid 1:101
> htb rate ${RATE}kbit tc class ${TCOP} dev ${IF} parent 1:20 classid
> 1:102 htb rate ${RATE}kbit
>
> tc qdisc ${TCOP} dev ${IF} parent 1:10  handle 10:  pfifo
> tc qdisc ${TCOP} dev ${IF} parent 1:100 handle 100: sfq perturb 10
> tc qdisc ${TCOP} dev ${IF} parent 1:101 handle 101: sfq perturb 10
> tc qdisc ${TCOP} dev ${IF} parent 1:102 handle 102: sfq perturb 10
>
> tc filter ${TCOP} dev ${IF} parent 1:0 protocol ip prio 1 handle 1
> fw classid 1:10
> tc filter ${TCOP} dev ${IF} parent 1:0 protocol ip prio 4 handle 4
> fw classid 1:100
>
> # IAX2 prio 0.
> iptables -t mangle ${IPTOP} PREROUTING -p udp -m udp --dport 4569 -
> j MARK --set-mark 0x1
> iptables -t mangle ${IPTOP} PREROUTING -p udp -m udp --dport 4569 -
> j RETURN
>
>
> # everything else goes into lowest priority (best effort).
> iptables -t mangle ${IPTOP} PREROUTING -j MARK --set-mark 0x4
> iptables -t mangle ${IPTOP} OUTPUT -j MARK --set-mark 0x4
>
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