Queue Ef - HPE FlexNetwork HSR6800 series Command Reference Manual

Related commands
display qos queue cbq interface
traffic behavior

queue ef

Use queue ef to configure expedited forwarding (EF) and assign its maximum bandwidth.
Use undo queue ef to restore the default.
Syntax
queue ef bandwidth { bandwidth [ cbs burst ] | pct percentage [ cbs-ratio ratio ] }
undo queue ef
Default
EF is not configured.
Views
Traffic behavior view
Predefined user roles
network-admin
Parameters
bandwidth: Specifies the bandwidth in the range of 8 to 10000000 kbps.
cbs burst: Sets the CBS in the range of 32 to 1000000000 bytes. The default is bandwidth × 25.
pct percentage: Specifies the percentage of the available bandwidth, in the range of 1 to 100.
cbs-ratio ratio: Sets the allowed burst ratio in the range of 25 to 500. This default is 25.
Usage guidelines
You cannot use this command in conjunction with the queue af or queue-length command in the
same traffic behavior.
In a policy, the default class cannot be associated with the traffic behavior that has the queue ef
command.
The total bandwidth assigned to AF and EF in a policy cannot exceed the maximum available
bandwidth of the interface where the policy is applied.
The total percentage of the maximum available bandwidth assigned to AF and EF in a policy cannot
exceed 100.
The bandwidths assigned to AF and EF in a policy must have the same type, bandwidth or
percentage.
After the queue ef bandwidth pct percentage [ cbs-ratio ratio ] command is used, CBS equals
(Interface available bandwidth × percentage × ratio)/100/1000.
After the queue ef bandwidth bandwidth [ cbs burst ] command is used, CBS equals burst. If the
burst argument is not specified, CBS equals bandwidth × 25.
Examples
# Configure EF in traffic behavior database, with the maximum bandwidth as 200 kbps and CBS as
5000 bytes.
<Sysname> system-view
[Sysname] traffic behavior database
[Sysname-behavior-database] queue ef bandwidth 200 cbs 5000
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