ZyXEL EX3510-B0 User Guide - Page 151
QoS Classification Setup
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Chapter 10 Quality of Service (QoS) The following table describes the labels in this screen. Table 47 Queue Setup: Add LABEL DESCRIPTION Active Name Interface Click this switch to enable or disable the queue. When the switch turns blue enabled. Otherwise, it is not. Enter the descriptive name of this queue. Select the interface to which this queue is applied. , the function is Priority This field is read-only if you are editing the queue. Select the priority level (from 1 to 7) of this queue. Weight 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. Buffer Management Rate Limit Cancel OK 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. If you enter 0 here, this means there's no rate limit on this queue. Click Cancel to exit this screen without saving any changes. Click OK to save your changes. 10.5 QoS Classification Setup 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 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. Click Network Setting > QoS > Classification Setup to open the following screen. EX3510-B0 User's Guide 151