AddPac VoiceFinder AP2120 User's Guide Page 129

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VoiceFinder AP2120 VoIP Gateway User’s Guide Version 1.00
AddPac Technology Co., Ltd. -
129 -
4.10. Traffic Management
There are four Queuing methods - First-Come-First-Serve(FCFS), Weighted Fair
Queuing(WFQ), Priority Queuing and Custom Queuing.
VoiceFinder AP2120 Gateway supports Traffic Queuing for effective delivery of
traffic and effective use of bandwidth. Queuing is offered for Out-going Traffic
with Priority OutPut Queuing of 4 level priority- High, Medium, Normal and Low,
along with custom queuing to maximize the performance.
The algorithem of Priory Queuing is as follows.
Each port of the Gateway has 4 type of Queue with different Priority(High,
Medium, Normal and Low). To send a packet, it analyzes the packet
according several guidelines (for example, Protocol Number, the interface it
comes from, the source and destination address of the packet) and put it into
the right Queue. When the Gatway send out packets it follows the priority level.
At first, it processes all High Priority Queue and then the next priority Queue.
Because it first processes High Queue, the essential packets such as Hello
Packet can always be process.
Typically, the Queue size is fixed but for more effective process, VoiceFinder
AP2120 Gateway supports Custom Queuing, so that the administrator can
modifiy the Queue size.
AP2120 Gateway Queuing is supported at Ethernet Interface of Low Speed Line.
Information
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