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

Chapter 37: Class of Service Commands

Priority Commands (Layer 2)

37
P C
RIORITY OMMANDS
queue mode
C S
LASS OF
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.
Table 37-1: Priority Commands
Command Group Function
Priority Commands Configures the queue mode, queue weights, and default priority
(Layer 2) for untagged frames
Priority Commands Sets the default priority processing method (CoS or DSCP), maps
(Layer 3 and 4) 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
(L 2)
AYER
This section describes commands used to configure Layer 2 traffic priority
on the switch.
Table 37-2: Priority Commands (Layer 2)
Command Function
queue mode Sets the queue mode to Weighted Round-Robin
(WRR), strict priority, or a combination of strict and
weighted queuing
queue weight Assigns round-robin weights to the priority queues
switchport priority default Sets a port priority for incoming untagged frames
show interfaces Displays the administrative and operational status of
switchport an interface
show queue mode Shows the current queue mode
show queue weight Shows weights assigned to the weighted queues
This command sets the scheduling mode used for processing each of the
class of service (CoS) priority queues. The options include strict priority,
Weighted Round-Robin (WRR), or a combination of strict and weighted
queuing. Use the no form to restore the default value.
S
YNTAX
queue mode {strict | wrr | strict-wrr [queue-type-list]}
– 1121 –
C
ERVICE OMMANDS
Mode
GC
GC
IC
PE
PE
PE