Class Of Service Commands; Priority Commands (Layer 2) - SMC Networks 8126PL2-F - annexe 1 Management Manual

4
Command Line Interface

Class of Service 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 priority 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 Groups
Priority (Layer 2)
Priority (Layer 3 and 4)

Priority Commands (Layer 2)

This section describes the commands used to configure Layer 2 traffic priority on the
switch.
Command
queue mode
switchport priority default
queue bandwidth
queue cos map
show queue mode
show queue bandwidth
show queue cos-map
show interfaces switchport Displays the administrative and operational status of an
4-244
Table 4-76 Priority Commands
Function
Configures default priority for untagged frames, sets queue weights,
and maps class of service tags to hardware queues
Sets the default priority processing method (CoS, IP Precedence or
DSCP); and maps TCP ports, IP precedence tags, or IP DSCP tags to
class of service values
Table 4-77 Priority Commands (Layer 2)
Function
Sets the queue mode to strict priority or Weighted
Round-Robin (WRR)
Sets a port priority for incoming untagged frames
Assigns round-robin weights to the priority queues
Assigns class-of-service values to the priority queues
Shows the current queue mode
Shows round-robin weights assigned to the priority queues
Shows the class-of-service map
interface
Page
4-244
4-250
Mode Page
GC 4-245
IC 4-245
IC 4-246
IC 4-247
PE 4-248
PE 4-249
PE 4-249
PE 4-165