In a label switching network using a plurality of labels, a communication apparatus receives signaling information for setting a first label switching tunnel. This signaling information includes one or more values of one or more labels representing one or more pseudowires accommodated in a first label switching tunnel, the bandwidth information of the pseudowire, and the bandwidth-sharing identifier. A bandwidth management table holding correspondence relationships between values of a plurality of labels, the bandwidth information, and the bandwidth-sharing identifiers are generated. One or more second label switching tunnels may be accommodated instead of one or more pseudowires.