SMC Networks 6724AL2, Management Manual

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OMMAND
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INE
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NTERFACE
3-188
Priority Commands
The commands described in this section allow you to specify which data
packets have greater precedence when traffic is buffered in the switch due
to congestion. This switch supports CoS with four egress queues for each
port. Data packets in a port’s high-priority queue will be transmitted before
those in the lower-priority queues. You can set the default priority for each
interface, the relative weight of each queue, and the mapping of frame
priority tags to the switch’s priority queues.
Command Function Mode Page
Layer 2 Priority Commands
switchport priority
default Sets a port priority for incoming untagged
frames IC 3-190
queue mode Sets the queue mode to strict priority or
Weighted Round-Robin (WRR) GC 3-191
queue bandwidth Assigns round-robin weights to the priority
queues GC 3-192
queue cos map Assigns class of service values to the priority
queues IC 3-193
show queue mode Shows the current queue mode PE 3-195
show queue
bandwidth Shows round-robin weights assigned to the
priority queues PE 3-195
show queue
cos-map Shows the class of service map PE 3-196
show interfaces
switchport Displays the administrative and operational
status of an interface PE 3-98
Layer 3 and 4 Priority Commands
map ip port Enables TCP class of service mapping GC 3-196
map ip port Maps TCP socket to a class of service IC 3-197
map ip precedence Enables IP precedence class of service
mapping
GC 3-198
map ip precedence Maps IP precedence value to a class of
service
IC 3-199