KVH Industries FB500 Manual Do Utilizador

Página de 212
Chapter 4:  Using the web interface
Administration
143
44444
Using the web 
interface
Using traffic flow filters
What are traffic flow filters?
When more than one type of traffic is needed, you must use both a primary 
and one or more secondary profiles. For the Core network and the terminal to 
classify packets received from the external network into the proper profile, you 
need a traffic flow filter.
A list of traffic flow filters consists of one to eight packet filters, each identified 
by a unique packet filter identifier. A packet filter also has an evaluation 
precedence index that is unique within all traffic flow filters associated with 
the profiles that share the same PDP (Packet Data Protocol) address. 
Information of source, destination, type of service etc. is combined in each 
packet filter in the list.
Purpose of the traffic flow filters
The purpose of the traffic flow filters is to assign different priorities to different 
types of traffic, in order to optimize performance.
Example: When you are browsing the Internet, a Standard data connection is 
normally sufficient. However, to have a video conference you may 
need a Streaming connection in order to obtain a direct connection 
without interruptions. Your traffic flow filters can define these 
priorities, so that your connection automatically switches to 
Streaming e.g. when you have a video conference.
BGAN-X_UM.book  Page 143  Wednesday, April 30, 2008  12:48 PM