broadcast-suppression cir cbs (VSI view)

Function

The broadcast-suppression cir cbs command enables the broadcast traffic suppression function in a VSI.

The undo broadcast-suppression command disables the broadcast traffic suppression function in the VSI.

By default, the broadcast traffic suppression function is disabled in a VSI.

Format

broadcast-suppression cir cir-value cbs cbs-value

undo broadcast-suppression

Parameters

Parameter	Description	Value
cir cir-value	Specifies the Committed Information Rate (CIR), that is, the allowed rate at which traffic can pass through.	The value is an integer that ranges from 0 to 10000000, in kbit/s.
cbs cbs-value	Specifies the Committed Burst Size (CBS), that is, the traffic that can pass instantly, or the depth of the first token bucket.	The value is an integer that ranges from 10000 to 4294967295, in bytes.

Views

VSI view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

On a VPLS network, broadcast packets, multicast packets, and unknown unicast packets are transmitted in broadcast mode and copied to neighboring ACs and PWs. If a large number of broadcast packets are sent to the access device on the network, the device has to make a lot of copies of these broadcast packets, which wastes bandwidth and resources, and degrades the performance of the system. You can run the broadcast-suppression cir cbs command to suppress the broadcast traffic in the VSI. The rate of broadcast traffic on the VPLS network is limited.

Prerequisites

A VSI has been created using the vsi vsi-name [ auto | static ] command.

Example

# Set the CIR to 100 kbit/s and the CBS to 18800 bytes for the broadcast traffic that can pass in VSI1.

<HUAWEI> system-view
[HUAWEI] vsi VSI1
[HUAWEI-vsi-VSI1] broadcast-suppression cir 100 cbs 18800