| 摘要 |
In a system interconnecting a LAN and an ISDN to which data terminals of the LAN are accessible through a common interface (4), a network-to-terminal LAPD packet is transmitted from the interface to the data terminals, containing a TEI value of group address, a destination address of a group address of the data terminals and an action indicator set to an assigned TEI value. The data terminal specified by the assigned TEI value transmits a packet containing the address of the interface and a TEI value equal to the assigned TEI value. In addition, the interface creates a table (42) describing a relationship between a TEI value and a source address both contained in a terminal-to-network LAPD packet. An address stored in the table is recalled in response to a TEI value contained in an LAPD signal from the network and entered to this LAPD signal as a destination address to form a network-to-terminal LAPD packet for transmission to the data terminals. |
