This section describes the MAC flapping-based loop detection application on a virtual private LAN service (VPLS) network in terms of background, introduction, and basic concepts.
After MAC flapping-based loop detection is configured on a Bridge-Domain (BD), the devices can detect loops on AC-side interfaces, and block interfaces or report alarms.
After MAC flapping-based loop detection is configured on a virtual private LAN service (VPLS) network, the devices can detect loops on AC-side interfaces or pseudo wires (PWs), and block interfaces or PWs or report alarms.
After MAC flapping-based loop detection is configured on a virtual private LAN service (VLAN) network, the devices can detect loops on AC-side interfaces or pseudo wires (PWs), and block interfaces or PWs or report alarms.
To inform the network administrator of loops, enable MAC flapping-based loop detection association on the interface of the sub-interfaces bound with virtual switching instances (VSIs) or bridge domains (BDs). If a loop occurs in a VSI or a BD, the interface and all its sub-interfaces except for the EVC L2 sub-interfaces are blocked, and an alarm is generated.