Chapter 10 Quality of Service (QoS)

10.4.1 Adding a QoS Queue

Click Add new Queue or the edit icon in the Queue Setup screen to configure a queue.

Figure 54 Queue Setup: Add

The following table describes the labels in this screen.

Table 32 Queue Setup: Add

LABEL

DESCRIPTION

Active

Select to enable or disable this queue.

 

 

Name

Enter the descriptive name of this queue.

 

 

Interface

Select the interface to which this queue is applied.

 

This field is read-only if you are editing the queue.

 

 

Priority

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.

 

 

Weight

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.

 

 

Buffer

This field displays Drop Tail (DT). Drop Tail (DT) is a simple queue

Management

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).

 

 

Rate Limit

Specify the maximum transmission rate (in Kbps) allowed for traffic on

 

this queue.

 

 

Apply

Click Apply to save your changes.

 

 

Cancel

Click Cancel to exit this screen without saving.

 

 

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VSG1432-B101 Series User’s Guide