setting priority on RTP traffic - UDP 10000 - 20000

[Guest]

[gopher_49]

My goal is to set priority on RTP traffic for the few SIP phones I have on my LAN.  These phones register to a remote SIP server.  The ports I need priority on is UDP ports 10000 - 20000.  I've read the help guides and browsed through the forum and this is the config I came up with…  My source is configured as my UPLINK.  The destination is the SIP server's IP I'm registering to with my phones.  The protocols set are tcp+udp and the service is set for 0:65535.  I have minimize/delay enabled for the TOS/DSCP.  The traffic class is IPSEC - High Priority.  Is this correct?  Will this set priority on UDP 10000 - 20000 ??

[Syntax42]

I'm not sure if you got it right, but it sounds like you were close, at least.

Endian 2.5.1 seems kind of buggy in the QoS web interface.  If you edit the device, it changes the uplink name to IPSEC (a VPN protocol) instead of your primary uplink.  I would suggest deleting everything in QoS devices and classes, and starting over without making mistakes on the devices. 

After you have re-added your uplink, set the classes.  I would not reserve more than 10% for any single class unless your bandwidth is low.  For the high-priority class, reserve 100-200 kb/s per outgoing line included in your VOIP service.

In the rules, the protocol can be UDP and the ports 10000:20000.  Source should be green AND red because we want traffic coming in to have priority too.  The TOS/DSCP value you set the firewall to look for is determined by your IP phone manufacturer.  For my Polycom phones, they use a DSCP value of EF (hex).  Destination device should be Uplink Main and the network can be empty.


That's how I have mine set up.  It seems to work.

[gopher_49]

Thanks for the information.  When I get to my lab I'll give it a shot.

thanks!