savi enable

Function

The savi enable command enables the SAVI function.

The undo savi enable command disables the SAVI function.

By default, the SAVI function is disabled.

Format

savi enable

undo savi enable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After the SAVI function is enabled, the device checks the validity of the source addresses in the ND, DHCPv6, and IPv6 data packets based on the bindings between IP addresses and ports and filters out invalid packets. The bindings between IP addresses and ports are generated based on ND snooping and DHCPv6 snooping.

Precautions

The SAVI function must be used together with ND snooping, DHCPv6 snooping, or IP source guard.

After the SAVI function is enabled, only when both ND snooping and IP source guard are enabled or both DHCPv6 snooping and IP source guard are enabled on an interface, the device checks the validity of the source addresses in IPv6 data packets received on this interface.

Example

# Enable the SAVI function.

<HUAWEI> system-view
[HUAWEI] savi enable