A method for advertising a forwarding adjacency link, comprising: receiving, by a first logical node (502, 602), node information of a second edge forwarding node sent by a node management module (503, 603) of a controller (501, 601, 701) in a virtual cluster, wherein the first logical node (502, 602) corresponding to a first edge forwarding node is a logical node in the controller (501, 601, 701), the first edge forwarding node and the second edge forwarding node are edge forwarding nodes in the virtual cluster, and the second edge forwarding node is a peer node of the first edge forwarding node; generating, by the first logical node (502, 602), a logical link between the first edge forwarding node and the second edge forwarding node based on the node information of the second edge forwarding node; adding, by the first logical node (502, 602), the logical link between the first edge forwarding node and the second edge forwarding node into an interior gateway protocol, IGP, protocol packet link state advertisement, LSA/link state protocol, LSP; and advertising, by the first logical node (502, 602), the logical link between the first edge forwarding node and the second edge forwarding node via the IGP protocol packet LSA/LSP, wherein receiving, by the first logical node (502, 602), the node information of the second edge forwarding node sent by the node management module (503, 603) of the controller (501, 601, 701) in the virtual cluster comprises: subscribing from an interface management module of the controller (501, 601, 701), by the first logical node (502, 602), a logical interface A between the first edge forwarding node and the second edge forwarding node and a logical interface B between the first edge forwarding node and a border gateway protocol router reflector, BGP RR, node of the controller (501, 601, 701); receiving, by the first logical node (502, 602), the logical interface A and the logical interface B sent by the interface management module; acquiring from the node management module (503, 603) of the controller (501, 601, 701), by the first logical node (502, 602), the node information of the second edge forwarding node after the logical interface A and the logical interface B are received by the first logical node (502, 602). receiving, by a first logical node (502, 602), node information of a second edge forwarding node sent by a node management module (503, 603) of a controller (501, 601, 701) in a virtual cluster, wherein the first logical node (502, 602) corresponding to a first edge forwarding node is a logical node in the controller (501, 601, 701), the first edge forwarding node and the second edge forwarding node are edge forwarding nodes in the virtual cluster, and the second edge forwarding node is a peer node of the first edge forwarding node; generating, by the first logical node (502, 602), a logical link between the first edge forwarding node and the second edge forwarding node based on the node information of the second edge forwarding node; adding, by the first logical node (502, 602), the logical link between the first edge forwarding node and the second edge forwarding node into an interior gateway protocol, IGP, protocol packet link state advertisement, LSA/link state protocol, LSP; and advertising, by the first logical node (502, 602), the logical link between the first edge forwarding node and the second edge forwarding node via the IGP protocol packet LSA/LSP, wherein receiving, by the first logical node (502, 602), the node information of the second edge forwarding node sent by the node management module (503, 603) of the controller (501, 601, 701) in the virtual cluster comprises: subscribing from an interface management module of the controller (501, 601, 701), by the first logical node (502, 602), a logical interface A between the first edge forwarding node and the second edge forwarding node and a logical interface B between the first edge forwarding node and a border gateway protocol router reflector, BGP RR, node of the controller (501, 601, 701); receiving, by the first logical node (502, 602), the logical interface A and the logical interface B sent by the interface management module; acquiring from the node management module (503, 603) of the controller (501, 601, 701), by the first logical node (502, 602), the node information of the second edge forwarding node after the logical interface A and the logical interface B are received by the first logical node (502, 602). subscribing from an interface management module of the controller (501, 601, 701), by the first logical node (502, 602), a logical interface A between the first edge forwarding node and the second edge forwarding node and a logical interface B between the first edge forwarding node and a border gateway protocol router reflector, BGP RR, node of the controller (501, 601, 701); receiving, by the first logical node (502, 602), the logical interface A and the logical interface B sent by the interface management module; acquiring from the node management module (503, 603) of the controller (501, 601, 701), by the first logical node (502, 602), the node information of the second edge forwarding node after the logical interface A and the logical interface B are received by the first logical node (502, 602).