SMC Networks TigerAccess SMC7816M - Manual (Page 849)

P
RIORITY
C
OMMANDS
(L
AYER
2)
33-7
queue bandwidth
This command assigns weighted round-robin (WRR) weights to the eight
class of service (CoS) priority queues, or specifies a high-priority queue
when the queue mode is set to hybrid. Use the no form to restore the
default weights.
Syntax
queue bandwidth weight1...weight8
no queue bandwidth
weight1...weight7 - The ratio of weights for queues 0 - 7 determines
the weights used by the WRR scheduler. (Range: 0 - 15)
Default Setting
Weights 1, 2, 4, 6, 8, 10, 12, 14 are assigned to queues 0 - 7 respectively.
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• WRR controls bandwidth sharing at the egress port by defining
scheduling weights for allocated service priorities.
• Use queue weights 1-15 for queues allocated service time based on
WRR. Queue weights must be configured in ascendant manner,
assigning more weight to each higher numbered queue.
• Use queue weight zero for high-priority queues processed with strict
priority under the hybrid mode (see the queue mode command on
page 33-3). Set queue bandwidth to zero to indicate a high-priority
queue. Any of queues 2 - 7 can be specified as high-priority queues,
but the selected queues must be in consecutive order, and must all be
grouped toward the high end of the queue list as shown in the
following example.