DSCP/ToS setting

[Kristan]

Is there any way to get the PBX to set the DiffServ bits in the IP header to something that will give traffic priority on switches that honour them?

 

ta

[Vodia PBX]

In Windows, you need to explicitly turn that "feature" on: There is a article from Microsoft on this topic: http://support.microsoft.com/kb/248611/en-us, see http://wiki.pbxnsip.com/index.php/Installing_in_Windows. Linux should do that automatically.

[Kristan]

Oh thanks, I've never noticed that before!

 

Does PBXnSIP use old skool ToS instead of DiffServ then?

[Vodia PBX]

Does PBXnSIP use old skool ToS instead of DiffServ then?

 

Well, it is just a couple of bits in the IP header. There is a setting called "tos_rtp" in the pbx.xml file that defines the value. Default is 184, which is the default code point that most vendors are using for RTP.

[andrewgroup]

Well, it is just a couple of bits in the IP header. There is a setting called "tos_rtp" in the pbx.xml file that defines the value. Default is 184, which is the default code point that most vendors are using for RTP.

 

Snom specifically reference the use of 160 and not 184

http://kb.snom.com/kb/index.php?View=entry...&EntryID=13

 

any chance this setting might make it into the Ports Settings f CS410's

 

also, microsoft suggests that any application can call their QOS API's to set the DSCP settings, in a previous post a Microsoft article is referenced, did that Article hard code in the DSCP setting or simply enable the API's for PBXnSIP to use.