Packet switch communication network using packet having virtual channel identifier

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United States of America Patent

PATENT NO 5119369
SERIAL NO

07547216

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a packet network which includes a plurality of packet switching stations and in which a packet including in its header portion a VPI (Virtual Path Indentifier) for identifying one of logical paths multipliexed on a transmission line and a VCI (Virtual Connection Identifier) for identifying one of logical connections multiplexed on one logical path is communicated between the switching stations, each switching station preliminarily designates a VCI to be given to a packet directed to that station when a logical connection is to be set up between that station and another station. When receiving an information packet from the other station, the each station makes access to header label conversion tables on the basis of a VCI included in the received packet to read internal routing information necessary for a packet switching operation and a VCI to be given to a packet to be delivered.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTD6-6 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gohara, Shinobu Yokohama, JP 52 1268
Kawakita, Kenji Yokohama, JP 45 1506
Tanabe, Shirou Hachioji, JP 13 270

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