PACKET TRANSFER PROCESSING METHOD AND LABEL DISTRIBUTION PROCESSING METHOD AS WELL AS DEVICE FOR USE IN WIDE AREA LABEL SWITCHING NETWORK

摘要

PROBLEM TO BE SOLVED: To provide a packet tranfer processing device and a label distribution device for buildup of a wide area label switching network in which label switching networks and connectionless packet switching networks are configured by a share connectionless packet switching network. SOLUTION: Label switching networks and connectionless packet switching networks are physically connected to a shared connectionless packet switching network that multiple users share, and transfer of label packets and label switching by a label distribution protocol can be conducted between label switching networks, and an end-end label switching path can be set up by operating label switching networks as a single label switching network management domain.