Patton electronic 2160 Series, 07M2160-GS manual Default

Model 2160 Series Getting Started Guide4 • Web configuration

	Table 9. VLAN Tag Priority Levels
Priority Level	Traffic Type
0 (default)	Best Effort
1	Background
2	Spare
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

In the Scheduling Configuration table, you can set up the type of QoS operation from 1 to 3. You can also set up the Queue Weight from 1 to 15.

WRR Scheduling Configuration Example. For example, you can set the Model 2160 use Weighted Round-Robin (WRR) queu- ing that specifies a relative weight of each queue. WRR uses a pre- defined relative weight for each queue that determines the percentage of service time to services each queue before moving on to the next queue. This prevents the head-of-line blocking that can occur with strict priority queuing.

Table 10. WRR Scheduling Configuration Example Values

Queue	0	1	2	3
Type 1	WRR	WRR	WRR	WRR
Weight	1	2	4	8

For this example, set up the WRR (Type 1) to share bandwidth by using scheduling weights 1, 2, 4 and 8 for queues 0 through 3 respectively.

Priority	0	1	2	3	4	5	6	7
Queue	1	0	0	1	2	2	3	3

According to above two tables, we can get the mapping QoS values to Egress Queues as the following:ely.

Priority	0	1	2	3
Queue	1,2	0,3	4,5	6,7

Advanced Configuration Options 52