MIB Variables Associated With Class of Service

TABLE 3-21MIB Variables Associated With Class of Service

Field Name

MIB Variable

Access

Value Range

Default Value

 

 

 

 

 

Port Default

MIB-II.

Read/write

Integer (0-7)

0

User Priority

dot1dBridge.

 

 

 

 

pBridgeMIB.

 

 

 

 

pBridgeMIBObjects.

 

 

 

 

dot1dPriority.

 

 

 

 

dot1dPortPriorityTable.

 

 

 

 

dot1dPortPriorityEntry.

 

 

 

 

dot1dPortDefault-

 

 

 

 

UserPriority

 

 

 

 

 

 

 

 

3.3.5.2Mapping 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 (page 3-84). Up to eight separate traffic priorities are defined in the IEEE 802.1p standard. The default priority levels are assigned according to recommendations in the IEEE 802.1p standard as shown in the following table.

TABLE 3-22IEEE 802.1p Default Priority Recommendations

 

 

 

Queue

 

Priority

0

1

2

3

 

 

 

 

 

0

 

 

 

1

 

 

 

2

 

 

 

3

 

 

 

4

 

 

 

5

 

 

 

6

 

 

 

7

 

 

 

 

 

 

 

 

3-80Sun Fire B1600 Blade System Chassis Switch Administration Guide • June 2003

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Sunfire B1600 manual Mapping COS Values to Egress Queues, MIB Variables Associated With Class of Service