Fortinet FortiSwitch-548B v. 5.2.0.2 Administration Manual page 924

11.7.4.8 Configuring Congestion Notification (CN)) Global configuration
Selection Criteria
CNM Admin Mode - Enable/Disable congestion notification message(CNM) handling.

Enable - to enable handling congestion notification message.

Disable - to disable handling congestion notification message.
The system's default CNM handling is Enabled.
CN-TAG Processing - Enable/Disable CN-TAG processing.

Enable - configure the CNTAG Ether Type is recognized by parsing stages.

Disable - configure CNTAG Ether Type is unrecognized.
CN-Tag Ether Type can be recognized by default.
CPID LSB Field - Control the LSB field of Congestion Point Identifier of CNM payload.

CPIndex - Configure device identifier to use congestion point index.

Q_No - Set the CPID mode to use queue number of sampled packet.
The system's default LSB field of CPID is using queue number of sampled packet.
CNM Generation Behavior - Set Congestion Notification Message Generation Behavior. Choose
the CNM generation behavior when congestion notification threshold is reached but the incoming
sampled packet does not have CN-TAG.

Enable - Keep generate CNM.

Disable - Not generate CNM
The system¡¦s default behavior of CNM generation is not generate.
Configurable Data
Ether Type for CN-TAG - Set Ether Type for CN-TAG. The system's default Ether Type of CN-TAG
is 8937. The valid Ether Type range is 0 to 65535.
Ether Type for CNM - Set Ether Type for Congestion Notification Message (CNM). The system¡¦s
default Ether Type of CNM is 8935. The valid Ether Type range is 0 to 65535.
Device ID for CPID - Set Device Identifier for Congestion Point Identifier (CPID). The system¡¦s
default device identifier of CPID is 0. The valid device identifier range is 0 to16777215.
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