Filter
Top Products
Class of Service Configuration
138
NXA-ENET24 - Software Management Guide
Setting the Default Priority for Interfaces - CLI
This example assigns a default priority of 5 to port 3.
Mapping CoS Values to Egress Queues
This switch processes Class of Service (CoS) priority tagged traffic by using four priority queues for each port,
with service schedules based on Weighted Round Robin (WRR). Up to 8 separate traffic priorities are defined
in IEEE 802.1p. The default priority levels are assigned according to recommendations in the IEEE 802.1p
standard as shown in the following table.
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.
FIG. 154 CLI - Port Priority Configuration
Egress Queue Priority Mapping
Queue 0123
Priority 1,2 0,3 4,5 6,7
FIG. 155
Weighted Round Robin (WRR)
CoS Priority Levels
Priority Level Traffic Type
1 Background
2 (Spare)
0 (default) Best Effort
3 Excellent Effort
4 Controlled Load
5 Video, less than 100 milliseconds latency and jitter
6 Voice, less than 10 milliseconds latency and jitter
7 Network Control
Q
0
Serviced
by weighted
round robin
Q
1
Q
2
Q
3
1,2
0,3
4,5
6,7