H3C S6812 Series Command Reference Manual page 1627

slot slot-number: Specifies an IRF member device by its member ID (slot number). If you do not
specify an IRF member device, this command applies to all IRF member devices.
cell: Specifies cell resources.
packet: Specifies packet resources.
queue-id: Specifies a queue by its ID in the range of 0 to 7. If you do not specify a queue, this
command sets the maximum shared-area ratio for each port.
ratio ratio: Specifies the maximum shared-area ratio, in percentage. The value range for ratio is 1 to
100.
Usage guidelines
By default, all ports or queues have an equal share of the shared area. You can set the shared-area
ratio for each port or a queue. The unconfigured queues use the default setting. The shared-area
space for each port or queue is finally determined by the chip based on your configuration and the
number of packets to be received and sent.
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 queue 0 to use up to 10% shared-area space of cell resources in the egress buffer.
<Sysname> system-view
[Sysname] buffer egress cell queue 0 shared ratio 10
buffer total-shared
Use buffer total-shared to set the total shared-area ratio.
Use undo buffer total-shared to delete the total shared-area ratio setting.
Syntax
buffer egress [ slot slot-number ] { cell | packet } total-shared ratio ratio
undo buffer egress [ slot slot-number ] { cell | packet } total-shared
Default
The total shared-area ratio is 55% for cell resources and 95% for packet resources.
Views
System view
Predefined user roles
network-admin
Parameters
egress: Specifies the egress buffer.
slot slot-number: Specifies an IRF member device by its member ID (slot number). If you do not
specify an IRF member device, this command applies to all IRF member devices.
cell: Specifies cell resources.
packet: Specifies packet resources.
ratio ratio: Specifies the ratio of the shared area, in percentage. The value range for ratio is 1 to 100.
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