D-Link DXS-3600 Series Cli Reference Manual page 1120

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
Default
By default, this option is disabled.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
QCN is a form of end-to-end congestion management defined in IEEE 802.1.Qau. The purpose of QCN is
to ensure that congestion is controlled from the sending device to the receiving device in a dynamic
fashion that can deal with changing bottlenecks. Use this command to enable or disable the QCN
functionality.
Example
This example shows how to enable the QCN functionality.
Switch# configure terminal
Switch(config)# qcn enable
Switch(config)#
88-3 qcn cnm-transmit-priority
This command is used to globally configure the IEEE 802.1p priority for transmitting Congestion
Notification Messages (CNMs). Use the no form of this command to reset to the default setting.
qcn cnm-transmit-priority PRIORITY-VALUE
no qcn cnm-transmit-priority
Parameters
PRIORITY-VALUE
Default
By default, this value is 6.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
Use this command to configure the priority of Congestion Notification Messages which are transmitted by
the switch.
Example
This example shows how to configure the priority of Congestion Notification Messages to 1.
Switch# configure terminal
Switch(config)# qcn cnm-transmit-priority 1
Specifies the IEEE 802.1p priority value for all Congestion Notification
Messages (CNMs). The valid priority range of CNMs is from 0 to 7
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