Implementing dual-homed node protection

An apparatus for implementing dual-homed node protection, which is applied to a dual-homed network for implementing a Layer 3 apparatus, wherein the dual-homed network comprises a dual-homed node and a Layer 2 MPLS-Transport Profile (MPLS-TP) network, the apparatus comprising a memory, a processor and a network card, wherein:

• the memory is adapted to store computer instructions;
• when the apparatus with the processor is a master apparatus of a Virtual Router Redundancy Protocol (VRRP), the processor is adapted to perform following operations through performing the computer instructions stored in the memory:
• monitoring a state of an uplink;
• when the monitoring detects the uplink has a failure, notifying, through the network card, an original backup apparatus of the VRRP to perform a master-backup switch, and notifying, through the network card, a downlink apparatus of the master apparatus of the VRRP that a remote link has a failure, thereby causing the downlink apparatus to switch a working channel within the MPLS-TP network;
• and
• when a notification indicating that the master-backup switch has been performed already is received through the network card from the original backup apparatus of the VRRP, switching to a backup apparatus of the VRRP.