Communication network system

Details Communication network system Communication network system

2004-12-30

2009-06-23

Orgad, Edan (Department: 2419)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S902000, C370S401000, C370S403000, C370S406000

Reexamination Certificate

active

07551634

ABSTRACT:
A communication network system includes: a plurality of lower hierarchy networks, each having a plurality of first relay apparatuses; and an intermediate hierarchy network having a plurality of second relay apparatuses for connecting the plurality of lower hierarchy networks via the second relay apparatuses at the edge position line-connected to the first relay apparatuses at the edge position. Each of the first relay apparatuses has a first routing table that holds information limited to routing information corresponding to the first relay apparatus and routing information on at least one of the first relay apparatuses and the second relay apparatuses in the edge positions that come into an adjacent state. Each of the second relay apparatuses has a second routing table that holds information including routing information on at least one of the second relay apparatuses and the first relay apparatuses in the edge positions that come into an adjacent state.

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