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Burst
This chapter includes these sections:
•
•
•
Burst overview
The burst function improves packet buffering and forwarding performance in the following scenarios:
•
Dense broadcast or multicast traffic and massive burst traffic are present.
•
High-speed traffic is forwarded over a low-speed link or traffic received from multiple interfaces at
the same speed is forwarded through an interface at the same speed.
By enabling the burst function on your device, you can improve the processing performance of the device
operating in the above scenarios to reduce packet loss.
Because the burst function may affect the QoS performance of your device, make sure that you are fully
aware of the impacts when enabling the burst function.
Configuring burst
Configuration prerequisites
Make sure that the burst function is necessary for addressing your problem.
Configuration procedure
Follow these steps to enable the burst function:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enable the burst function
burst-mode enable
Required
Disabled by default
Burst configuration example
Network requirements
In the customer network shown in
, a server connects to the switch through a 1000 Mbps
Ethernet interface. The server sends dense broadcast or multicast traffic to the hosts irregularly. Each host
connects to the switch through a 100 Mbps network adapter.
Configure the switch to process dense traffic from the server to guarantee that packets can reach the
hosts.