D-Link DCS-4802E User Manual page 57

Section 3: Configuration
Class of Service (CoS) and Quality of Service (QoS) allow you to prioritize surveillance traffic on your network to ensure that your
cameras can stream video smoothly and remain accessible even when there is heavy traffic on your network. Your network must
support CoS or QoS in order to use them. After making any changes, click the Save button to save your changes.
Enable CoS: Enabling the Class of Service setting implements a best-effort policy
to prioritize traffic without making any bandwidth reservations.
To use CoS, enable it, enter the VLAN ID to use for the camera, and
set the priority for your Live Video, Live Audio, Event/Alarm, and
Management camera traffic.
Enable QoS: Enabling QoS allows you to specify a traffic priority policy to ensure
a consistent Quality of Service during busy periods. If the network
camera is connected to a router that itself implements QoS, the
router's settings will override the QoS settings of the camera.
To use QoS, enable it and set the priority for your Live Video, Live
Audio, Event/Alarm, and Management camera traffic.
D-Link DCS-4802E User Manual
CoS and QoS
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