H3C S6812 Series Command Reference Manual page 1628

Usage guidelines
After you set the shared-area ratio, the remaining buffer space is automatically assigned to the fixed
area.
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.
Examples
# Configure the shared area to use 50% space of cell resources in the egress buffer.
<Sysname> system-view
[Sysname] buffer egress cell total-shared ratio 50
burst-mode enable
Use burst-mode enable to enable the Burst feature.
Use undo burst-mode enable to disable the Burst feature.
Syntax
burst-mode enable
undo burst-mode enable
Default
The Burst feature is disabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
The Burst feature is especially useful for reducing packet losses under the following circumstances:
•
Broadcast or multicast traffic is intensive, resulting in bursts of traffic.
•
Traffic enters a device from a high-speed interface and goes out of a low-speed interface.
•
Traffic enters a device from multiple same-rate interfaces and goes out of an interface with the
same rate.
Examples
# Enable the Burst feature.
<Sysname> system-view
[Sysname] burst-mode enable
display buffer
Use display buffer to display buffer size settings.
Syntax
display buffer [ slot slot-number ] [ queue [ queue-id ] ]
Views
Any view
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