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24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Class of Service Settings
Class of Service (CoS) allows you to specify which data packets have greater precedence when traffic is buffered
in the switch due to congestion. This switch supports CoS with four priority queues for each port. Data packets in
a port's high-priority queue will be transmitted before those in the lower-priority queues. You can set the default
priority for each interface, and configure the mapping of frame priority tags to the switch's priority queues.
The priority levels recommended in the IEEE 802.1p standard for various network applications are shown in the
following table. However, you can map the priority levels to the switch's output queues in any way that benefits
application traffic for your own network.
Priority Level
1
2
0
3
4
5
6
7
Priority. CoS value. (Range: 0-7, where 7 is the highest priority)
Traffic Type. Output queue buffer. (Range: 0-3, where 3 is the highest CoS priority queue)
Modify the default priority for any interface using the textfield provided. CoS can be enabled or disabled by using
the CoS Mode checkbox.
Default settings can be restored using the Restore Defaults checkbox.
Click submit to save the changes.
Chapter 5: Configuring the Switch through the Web Utility
QoS
Table 1:
Traffic Type
Background
(Spare)
(default) Best Effort
Excellent Effort
Controlled Load
Video, less than 100 milliseconds latency and jitter
Voice, less than 10 milliseconds latency and jitter
Network Control
Figure 5-25: QoS - CoS Settings
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