The Class Setup Screen - ZyXEL Communications P-660HN-51 - V1.10 Manual

Chapter 17 Quality of Service (QoS)
The following table describes the labels in this screen.
Table 72 Queue Setup: Add
LABEL
Active
Name
Outgoing
Interface
Priority
Weight
Buffer
Management
Rate Limit
Apply
Cancel

17.5 The Class Setup Screen

Use this screen to add, edit or delete 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 ZyXEL Device 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.
216
DESCRIPTION
Select to enable or disable this queue.
Enter the descriptive name of this queue.
Select the interface to which this queue is applied.
This field is read-only if you are editing the queue.
Select the priority level (from 1 to 3) of this queue.
The smaller the number, the higher the priority level. Traffic assigned to
higher priority queues gets through faster while traffic in lower priority
queues is dropped if the network is congested.
Select the weight (from 1 to 8) of this queue.
If two queues have the same priority level, the ZyXEL Device divides the
bandwidth across the queues according to their weights. Queues with
larger weights get more bandwidth than queues with smaller weights.
This field displays Drop Tail (DT). Drop Tail (DT) is a simple queue
management algorithm that allows the ZyXEL Device buffer to accept as
many packets as it can until it is full. Once the buffer is full, new packets
that arrive are dropped until there is space in the buffer again (packets
are transmitted out of it).
Specify the maximum transmission rate (in Kbps) allowed for traffic on
this queue.
Click Apply to save your changes.
Click Cancel to exit this screen without saving.
P-660HN-51 User's Guide