Patton electronic 2160 Series IP Dscp Priority QoS, Vlan Tag Index 0 1 2 3 4 5 6 Queue Index

Model 2160 Series Getting Started Guide5 • Console and Telnet configuration

	Table 28. 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

For example, you can set the Model 2160 to use Weighted Round-Robin (WRR) queuing (Type 1) that speci- fies a relative weight of each queue. WRR uses a predefined relative weight for each queue that determines the percentage of s time to services for each queue before moving on to the next queue.

Table 29. VLAN Tag Priority QoS Options

VLAN Tag Index 0 1 2 3 4 5 6 7

Queue Index

IP DSCP Priority QoS

Differentiated Services (DiffServ) is a class of service (CoS) model that enhances best-effort Internet services by differentiating traffic by users, service requirements and other criteria. Packets are specifically marked, allowing network nodes to provide different levels of service, as appropriate for video playback, voice calls or other delay-sensitive applications, via priority queuing or bandwidth allocation.

The DSCP value used to identify 64 levels (26=64) of service determines the forwarding behavior that each packet gets across the DiffServ network. Based on the marking rule different kinds of traffic can be marked for different priorities of forwarding. Resources can then be allocated according to the DSCP values and the con- figured policies.

Set up queue index (0, 1, 2 or 3) on each DSCP:

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Command: setup qos ipDscpPri <0~63> <0~3>

Message: Please input the following information.

IP DSCP index <0~63>: 0

Queue index (ENTER for default) <0>:

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Setup Command Menu 82