Chapter 36 Class Of Service Commands; Priority Commands (Layer 2) - Supermicro SSE-G2252 User Manual

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 eight priority queues for each port. Data packets in a port's
high-priority queue will be transmitted before those in the lower-priority queues. The
default priority can be set for each interface, also the queue service mode and the
mapping of frame priority tags to the switch's priority queues can be configured.
Command Group

Priority Commands (Layer 2)

Priority Commands (Layer 3 and
4)
36-1 Priority Commands (Layer 2)
This section describes commands used to configure Layer 2 traffic priority on the switch.
Command
queue mode
queue weight
switchport priority default
show interfaces switchport
show queue mode
show queue weight
Chapter 36
Table 36-1. Priority Commands
Function
Configures the queue mode, queue weights, and default priority for
untagged frames
Sets the default priority processing method (CoS or DSCP), maps
priority tags for internal processing, maps values from internal priority
table to CoS values used in tagged egress packets for Layer 2
interfaces, maps internal per hop behavior to hardware queues
Table 36-2. Priority Commands (Layer 2)
Function
Sets the queue mode to Shaped Deficit Weighted
Round-Robin (SDWRR), strict priority, or a combination
of strict and weighted queuing
Assigns round-robin weights to the priority queues
Sets a port priority for incoming untagged frames
Displays the administrative and operational status of an
interface
Shows the current queue mode
Shows weights assigned to the weighted queues
Chapter 36: Class of Service Commands
36-1
Mode
GC
GC
IC
PE
PE
PE