IBM BladeCenter Management Module, Installation And User Manual

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To enable priority queuing on the switch module, toggle the field on the preceding
window from
Disabled to Weighted Round Robin and press APPLY .
Class of Service Configuration
Select COS Configuration on the Class of Service menu and press Enter to
access the Class of Service Configuration window.
The Class of Service Configuration window contains the following information:
The switch module supports 802.1p priority queuing; four priority queues are
supported per port. The switch module provides user-programmable mapping (four
Priority Queue assignments: High, Med-High, Med-Low, Low) for the eight 802.1p
priority classes (0 to 7). For the priority queue feature to take effect, users must first
enable the Output Priority Queue Method on the Class of Service menu. Otherwise,
only the round-robin method can be used to schedule the packets in four different
priority queues.
When the Output Priority Queue Method is enabled, the weight and latency
specified in the preceding Class of Service Configuration window will take effect.
Note that the weight can only be a value between 1 and 16. A higher priority queue
always has a larger weight than a lower priority queue.
802.1p Priority Mapping
Select 802.1p Priority Setting on the Class of Service menu and press Enter to
access the following window:
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IBM BladeCenter 4-Port Gb Ethernet Switch Module: Installation and User’s Guide