Using The Burst Function To Configure The Data Buffer Setup; Manually Configuring The Data Buffer Setup; Manual Data Buffer Configuration Task List; Configuring The Cell Resource - HP A5120 EI Series Configuration Manual

Using the burst function to configure the data buffer setup

The burst function allows the switch to automatically determine the shared resource size, the minimum
guaranteed resource size for each queue, and the maximum shared resource size per port.
The burst function helps optimize packet buffering to ameliorate forwarding performance in the following
scenarios:
Broadcast or multicast traffic is dense and bursts of traffic are usually large.

High-speed traffic is forwarded over low-speed links or traffic received from multiple ports is

forwarded through a port operating at the same speed.
Follow these steps to use the burst function to configure the data buffer:
To do...
Enter system view
Enable the burst function

Manually configuring the data buffer setup

NOTE:
Data buffer configuration is complicated and has significant impacts on the forwarding performance of
a device. HP does not recommend modifying the data buffer parameters unless you are sure that your
device will benefit from the change. If a larger buffer is needed, HP recommends that you enable the
burst function to allocate the buffer automatically.

Manual data buffer configuration task list

Perform the following tasks to manually configure the data buffer setup:
Task

Configuring the cell resource

Configuring the packet resource
Applying the data buffer settings
Configuring the cell resource

Configure the shared resource area of the cell resource

Follow these steps to configure the shared resource size:
To do...
Enter system view
Use the command...
system-view
burst-mode enable
Use the command...
system-view
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Remarks
—
Required
Disabled by default
Remarks
All these tasks are optional. If any of
them is performed, you must apply
the configuration to have it take
effect.
Remarks
—