Planet IGSW-2840, User Manual

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User’s Manual of IGSW-2840
231
4.10.1.2 Traffic Classes
IEEE 802.1p CoS Priority
This Industrial Managed Switch processes Class of Service (CoS) priority tagged traffic by using four egress queues for each
port, with service schedules based on Weighted Round Robin (WRR) . Up to eight separate traffic priority levels 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:
802.1p Priority 0 1 2 3 4 5 6 7
Queue 1 0 0 1 2 2 3 3
Table 4-10-1 Mapping CoS Values to Egress Queues
Command Sequence –
1. Mark an interface and click Select to display the current mapping of CoS values to output queues.
2. Assign priorities to the traffic classes (i.e., output queues) for the selected interface, then click Apply .
Figure 4-10-2 Traffic Classes screenshot
The page includes the following fields:
Object Description
•
Interface Selects the port or trunk interface settings to display and modify.
•
Priority CoS value.
(Range: 0-7, where 7 is the highest priority)
•
Traffic Class Output queue buffer.
(Range: 0-3, where 3 is the highest CoS priority queue)