[ns] IFQ parameter of TCL script

[kalpa sankara]

hi all

 I want to test  different services of WiMax like ugs, rtps, best effort  using 
Ns2 with the wiMax patch.

In the TCL script, what does the parameter IFQ (interface queue )  specify ?

set opt(ifq) Queue/DropTail/PriQueue;
 
The scheduling service is implemented  as part of the Wimax module is different 
from this. Where is this queuing algorithm ( IFQ) applied?

Please clarify.

Kalpa