[Serusers] QoS with rtp

[Ezequiel Colombo]

Lucas, if you are using rtpproxy the DSCP field of all media packets is set to
0xb8 (decimal 46, behavior EF) automatically.
If mediaproxy is used, the argument  --tos= of mediaproxy.py can be usefull.

Now you can use tcindex in your tc filters or marks through iptables.

Regards
Ezequiel Colombo

----- Original Message -----
From: "Lucas Aimaretto" <lucas at cyneric.com>
To: <serusers at lists.iptel.org>
Sent: Wednesday, May 11, 2005 3:48 PM
Subject: [Serusers] QoS with rtp


| Hi all,
|
| I've used for long time the QoS capabilities of linux for
| shaping/prioritizing traffic. Now, i'm willing to prioritize rtp packets
| in my lan, over the rest ot packets. I've used the u32 filters, but I
| did not really found a nice way of "matching" a rtp packet. I read the
| rfc so as to look at the rtp-header and found that the only field wich
| does not change its value along time is the version-field. It is located
| at the 29th byte ( with byte 0 at the IP heder first byte ). But it is a
| really poor way of doing it, because there may be many other packets
| wich will "get caugth" by this rule ...
|
| any ideas ? any experience in the subject ...
|
| Regards,
|
| Lucas
|
| --
| No virus found in this outgoing message.
| Checked by AVG Anti-Virus.
| Version: 7.0.308 / Virus Database: 266.11.8 - Release Date: 10/05/2005
|
|
| _______________________________________________
| Serusers mailing list
| serusers at lists.iptel.org
| http://lists.iptel.org/mailman/listinfo/serusers
|