Web Management Guide-R05

Chapter 9 | Class of Service
Layer 2 Queue Settings
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Command Usage
◆ Egress packets are placed into the hardware queues according to the mapping
defined by this command.
◆ The default internal PHB to output queue mapping is shown below.
◆ The specified mapping applies to all interfaces.
Parameters
These parameters are displayed:
◆ Port – Specifies a port.
◆ PHB – Per-hop behavior, or the priority used for this router hop. (Range: 0-7,
where 7 is the highest priority)
◆ Queue – Output queue buffer. (Range: 0-7, where 7 is the highest CoS priority
queue)
Web Interface
To map internal PHB to hardware queues:
1. Click Traffic, Priority, PHB to Queue.
2. Select Configure from the Action list.
3. Map an internal PHB to a hardware queue. Depending on how an ingress
packet is processed internally based on its CoS value, and the assigned output
queue, the mapping done on this page can effectively determine the service
priority for different traffic classes.
4. Click Apply.
4 Controlled Load
5 Video, less than 100 milliseconds latency and jitter
6 Voice, less than 10 milliseconds latency and jitter
7Network Control
Table 15: Mapping Internal Per-hop Behavior to Hardware Queues
Per-hop Behavior 0 1 2 3 4 5 6 7
Hardware Queues 2 0 1 3 4 5 6 7
Table 14: CoS Priority Levels (Continued)
Priority Level Traffic Type