H3C S6812 Series Command Reference Manual page 1625

Data buffer commands
Inappropriate data buffer changes can cause system problems. Before manually changing data
buffer settings, make sure you understand its impact on your device. As a best practice, use the
burst-mode enable command if the system requires large buffer spaces. The burst-mode enable
command and the buffer apply command are mutually exclusive. If you have configured the data
buffer by using one command, you must execute the undo form of the command before using the
other command.
buffer apply
Use buffer apply to apply manually configured data buffer settings.
Use undo buffer apply to restore the default.
Syntax
buffer apply
undo buffer apply
Views
System view
Predefined user roles
network-admin
Usage guidelines
For data buffer settings to take effect, you must execute this command after configuring data buffer
settings.
After applying manually configured data buffer settings, you cannot directly modify the applied
settings. To modify them, you must cancel the application, reconfigure data buffer settings, and
reapply the new settings.
Examples
# Apply manually configured data buffer settings.
<Sysname> system-view
[Sysname] buffer apply
buffer queue guaranteed
Use buffer queue guaranteed to set the fixed-area ratio for a queue.
Use undo buffer queue guaranteed to delete the fixed-area ratio setting of a queue.
Syntax
buffer egress [ slot slot-number ] { cell | packet } queue queue-id guaranteed ratio ratio
undo buffer egress [ slot slot-number ] { cell | packet } queue queue-id guaranteed
Default
The cell resource ratio for a queue is 12% of the total cell resources. The packet resource ratio for a
queue is 11% of the total packet resources.
Views
System view
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