Sun Microsystems Sun Fire B1600 Administration, Administration Manual

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3-80 Sun Fire B1600 Blade System Chassis Switch Administration Guide • June 2003
MIB Variables Associated With Class of Service
3.3.5.2 Mapping 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 3-21
MIB Variables Associated With Class of Service
Field Name MIB Variable Access Value Range Default Value
Port Default
User Priority
MIB-II.
dot1dBridge.
pBridgeMIB.
pBridgeMIBObjects.
dot1dPriority.
dot1dPortPriorityTable.
dot1dPortPriorityEntry.
dot1dPortDefault-
UserPriority
Read/write Integer (0-7) 0
TABLE 3-22
IEEE 802.1p Default Priority Recommendations
Queue
Priority 0 1 2 3
0
•
1
•
2
•
3
•
4
•
5
•
6
•
7
•