PACKET DATA TRANSMISSION NETWORK OF HIGH EFFICIENCY AND INTERFACE USED IN THE NETWORK

摘要

PROBLEM TO BE SOLVED: To secure an interface between a customer device and a packet transmission network using a TCP/IP protocol by performing the connection to a routing node via one of both routing links and then performing the conversion between the customer digital data on a customer access line and an IP transmission packet formed on the routing link. SOLUTION: A packet transmission network 40 of an IP base has a system consisting of a TR(transmission router) 42, a TAP(transmission access point) 44 and a DHCP(dynamic host constitution protocol) server 46. A customer router or a host machine CR 48 accesses the network 40 via a customer access line 50 and the TAP 44. The TR 42 routes an IP packet TIP 52 and capsules a customer packet from an access point to another. The TAP 44 functions as an interface between a transmission system and a CR(customer router).