l2-topology detect enable

Function

The l2-topology detect enable command enables Layer 2 topology detection.

The undo l2-topology detect enable command disables Layer 2 topology detection.

By default, Layer 2 topology detection is disabled.

Format

l2-topology detect enable

undo l2-topology detect enable

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

After the l2-topology detect enable command is executed, all ARP entries mapping the VLAN to which the Layer 2 interface belongs are updated if the Layer 2 interface turns Up.

When an active/standby switchover is performed in a stack, all ARP entries mapping the VLAN to which the Layer 2 interface belongs are updated.

Example

# Enable Layer 2 topology detection.

<HUAWEI> system-view
[HUAWEI] l2-topology detect enable