Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 471)

Brocade 6910 Ethernet Access Switch Configuration Guide 421
53-1002581-01
Priority Commands (Layer 2)
21
• The specified queue mode applies to all interfaces.
• Protocols used to synchronize distributed switches use packets of 1588 bytes to control the
synchronization process. This switch therefore assigns packets of this size to the highest
priority queue to ensure quick passage.
Example
The following example sets the queue mode to strict priority service mode:
Console(config)#queue mode strict
Console(config)#
Related Commands
queue weight (421)
show queue mode (423)
queue weight
This command assigns weights to the eight class of service (CoS) priority queues when using
weighted queuing, or one of the queuing modes that use a combination of strict and weighted
queuing. Use the no form to restore the default weights.
Syntax
queue weight weight0...weight7
no queue weight
weight0...weight7 - The ratio of weights for queues 0 - 7 determines the weights used by
the WRR scheduler. (Range: 1-255)
Default Setting
Weights 1, 2, 4, 6, 8, 10, 12, 14 are assigned to queues 0 - 7 respectively.
Command Mode
Global Configuration
Command Usage
• This command shares bandwidth at the egress port by defining scheduling weights for
Weighted Round-Robin, or for the queuing mode that uses a combination of strict and
weighted queuing (
page 420 ).
• Bandwidth is allocated to each queue by calculating a precise number of bytes per second that
will be serviced on each round.
Example
The following example shows how to assign round-robin weights of 1 - 4 to the CoS priority queues
0 - 7.
Console(config)#queue weight 1 2 3 4 5 6 7 8
Console(config)#