ZyXEL Communications P8802T, User Manual

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Chapter 8 Quality of Service (QoS)
Basic Home Station VDSL2 P8802T User’s Guide
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8.5 The QoS Classification Setup Screen
Click Advanced Setup > QoS > QoS Classification to open the following screen. Use this screen
to manage QoS classifiers. A classifier groups traffic into data flows according to specific criteria
such as the source address, destination address, source port number, destination port number or
incoming interface. For example, you can configure a classifier to select traffic from the same
protocol port (such as Telnet) to form a flow.
You can give different priorities to traffic that the VDSL Router forwards out through the WAN
interface. Give high priority to voice and video to make them run more smoothly. Similarly, give low
priority to many large file downloads so that they do not reduce the quality of other applications.
Figure 48
QoS Classification Setup
Queue Weight This displays for ATM and PTM interface queues. Select the weight of this queue.
If two queues have the same precedence, the VDSL Router divides the bandwidth across the
queues according to their weights. Queues with larger weights get more bandwidth than
queues with smaller weights.
Default Queue
Weight This displays for ATM and PTM interface queues. Specify the VC’s weight for weighed fair
queuing. The higher the weight, the bigger portion of the bandwidth the VC gets.
Shaping Rate This displays for PTM interface queues. Set the maximum transmission rate for traffic in this
queue.
Shaping Burst
Size This displays for PTM interface queues. Set the maximum number of cells the queue can
send at the shaping rate.
PTM Priority This displays for PTM interface queues. Set the queue to low or high priority. This has no
effect at the time of writing.
DSL Latency This displays for ATM and PTM interface queues. Select Path0 (Fast) to use no interleaving
and have faster transmission (a “fast channel”). Suitable only for a good line with little need
for error correction.
At the time of writing the VDSL Router supports fast mode only and interleaved is reserved
for future use.
Apply/Save Click this button to save your changes.
Table 41
QoS Queue Setup: Add (continued)
LABEL DESCRIPTION