ripng split-horizon

Function

The ripng split-horizon command enables split horizon for RIPng.

The undo ripng split-horizon command disables split horizon for RIPng.

By default, split horizon is enabled except on the NBMA network.

Format

ripng split-horizon

undo ripng split-horizon

Parameters

None

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

After split horizon is enabled, a route is blocked if the route is advertised through the interface that learns the route. The split horizon mechanism avoids routing loops between adjacent neighbors.

When poison reverse and split horizon are configured on the same interface, only poison reverse takes effect.

Before running the ripng split-horizon command on an interface, run the ipv6 enable command to enable IPv6 on the interface.

Example

# Enable split horizon for RIPng Update packets.

<HUAWEI> system-view

[HUAWEI] ipv6

[HUAWEI] interface vlanif 100

[HUAWEI-Vlanif100] ipv6 enable

[HUAWEI-Vlanif100] ripng split-horizon

# Enable split horizon for RIPng Update packets.

<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] ipv6 enable
[HUAWEI-GigabitEthernet0/0/1] ripng split-horizon

# Disable split horizon for RIPng Update packets.

<HUAWEI> system-view

[HUAWEI] ipv6

[HUAWEI] interface vlanif 100

[HUAWEI-Vlanif100] ipv6 enable

[HUAWEI-Vlanif100] undo ripng split-horizon