Class of service commands, Priority commands (layer 2), 35 c – Microsens MS453490M Management Guide User Manual

Page 817: Lass, Ervice, Ommands, Table 114: priority commands, Table 115: priority commands (layer 2)

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35

C

LASS

OF

S

ERVICE

C

OMMANDS

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.

P

RIORITY

C

OMMANDS

(L

AYER

2)

This section describes commands used to configure Layer 2 traffic priority

on the switch.

Table 114: Priority Commands

Command Group

Function

Priority Commands

(Layer 2)

Configures the queue mode, queue weights, and default priority

for untagged frames

Priority Commands

(Layer 3 and 4)

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 115: Priority Commands (Layer 2)

Command

Function

Mode

queue mode

Sets the queue mode to Shaped Deficit Weighted

Round-Robin (SDWRR), strict priority, or a

combination of strict and weighted queuing

GC

queue weight

Assigns round-robin weights to the priority queues

GC

switchport priority default

Sets a port priority for incoming untagged frames

IC

show interfaces

switchport

Displays the administrative and operational status of

an interface

PE

show queue mode

Shows the current queue mode

PE

show queue weight

Shows weights assigned to the weighted queues

PE

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