PBB network, PBB edge switch, frame transfer method and storage medium

摘要

[Problem] In the configuration in which the VRRP network and the PBB network are connected to each other, the virtual MAC address of VRRP is hidden, and as a result, the advantage of the virtual MAC address can not be fully utilized.[MEANS FOR SOLVING PROBLEMS] A PBB network according to the present invention is connected to a VRRP (Virtual Router Redundancy Protocol) network in which one of a plurality of routers configuring a virtual router is set as a designated router, and is included in the VRRP network A plurality of edge switches connected to the router, and a plurality of L2 switches connected to the client device, wherein each of the plurality of edge switches constitutes a virtual switch, and among the plurality of edge switches And an edge switch connected to the designated router is set as a representative switch.