Interlogix NS3500-28T-4S User Manual - Manual (Page 198)

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The QoS page of the Managed Switch contains three types of QoS mode - the 802.1p mode, DSCP mode or
Port-base mode can be selected. Both the three mode rely on predefined fields within the packet to determine the
output queue.
 802.1p Tag Priority Mode –The output queue assignment is determined by the IEEE 802.1p VLAN priority
tag.
 IP DSCP Mode - The output queue assignment is determined by the TOS or DSCP field in the IP packets.
 Port-Base Priority Mode – Any packet received from the specify high priority port will treated as a high
priority packet.
The Managed Switch supports eight priority level queue, the queue service rate is based on the WRR(Weight
Round Robin ) and WFQ (Weighted Fair Queuing) alorithm. The WRR ratio of high-priority and low-priority can be
set to “4:1 and 8:1. 4.8.2 General
4.8.2.1 QoS Properties
The QoS Global Setting and Information screen in Figure 4-8-1 & Figure 4-8-2 appear.
Figure 4-8-1 QoS Global Setting Page Screenshot
The page includes the following fields:
Object Description
 QoS Mode Enable or disable QoS mode
Buttons
: Click to apply changes.