set protocols pimsm4 interface vif alternative-subnet

The set protocols pimsm4 interface vif alternative-subnet command is used to add the "alternative subnets" to a VLAN interface.

Command Syntax

set protocols pimsm4 interface <interface-name> vif <vif-name> alternative-subnet <IPv4Net>

Parameter

Parameter	Description
interface <interface-name>	Specifies a L3 VLAN interface. The value is a string.
vif <vif-name>	Specifies a vif interface. The value is a string.
alternative-subnet <IPv4Net>	Specifies a subnet address of the source. The value is an IPv4 subnet address in the address/prefix-length format, e.g., 150.0.0.0/24.

Usage Guidelines

One use of this alternative subnet is to make incoming traffic with a non-local source address appear as it is coming from a local subnet, then "alternative-subnet" can be configured on upstream interfaces connected to the Source.

NOTE：

The alternative-subnet should be used with extreme care, because it is possible to create forwarding loops.
Configure the interface route to the "alternative-subnet" subnet on the switch configured with the "alternate-subnet".

Example

Add a "alternative subnet" 150.0.0.0/24.

admin@Xorplus# set protocols pimsm4 interface vlan-2 vif vlan-2 alternative-subnet 150.0.0.0/24
admin@Xorplus# commit