Users Guide

Data Center Technology Commands 1195
traffic-class-group weight
Use the traffic-class-group weight command in Global Config or Interface
Configuration mode to specify the scheduling weight for each TCG. The
scheduler attempts to balance the traffic selected for transmission from the
TCGs such that, when the switch is congested, traffic is selected from the
round robin configured TCGs in proportion to their weights.
Use the no form of the command to return the TCGs to the default weighted
scheduler mode.
Syntax
traffic-class-group weight wp-0 wp-1 wp-2
no traffic-class-group strict
• wp-n—The weight percentage. Range 0 to 100.
Default Configuration
The default weight is in the ratio of 1:2:3 for
TCG0:TCG1:TCG2(100%:0%:0%).
Command Mode
Global Configuration mode, Interface Configuration mode
User Guidelines
NOTE: This command is only available on N40xx series switches.
This command specified in Interface Configuration mode only affects a
single interface, whereas the Global Configuration mode setting is applied to
all interfaces. The Interface Configuration mode command is only available
on platforms that support independent per-port class of service queue
configuration.
The weight percentage is not considered for Traffic Class Groups that are
configured for strict priority scheduling. Auto-configuration ports utilize the
weights received from the auto-configuration source but do no alter the
manual settings. Manually configured ports enabled for DCBX transmit the
manually configured weights in the TC Bandwidth table in the ETS TLVs.