Method of transmitting data with redundant structure, and device for transmitting data by said method
AssigneeFujitsu Limited
InventorsKyoko Ueno, Sumio Koseki
Life of this patent
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Abstract
The present invention provides a data transmission method in which a SONET is applied to Ethernet LANs. This method realizes a redundant structure of the Ethernet while utilizing the bandwidth of the SONET. On a server side, a working path and a back-up path of the Ethernet are multiplexed onto the same path of the SONET, and data transmission is conducted through the multiplexed path. On a client side, a data packet transmitted through the multiplexed path is divided by a filtering operation through detection of a port ID added on the transmitting side.
Claims15
A method of transmitting data in a structure in which small-scale communication networks are combined with a long-distance communication network,
- said method comprising the step of multiplexing a working path and a back-up path of the small-scale communication networks onto the same path of the long-distance communication network, when a redundant structure in the small-scale communication networks are to be realized over the long-distance communication network.
A data transmission device for connecting small-scale communication networks to one another with a long-distance communication network, said device comprising a unit for multiplexing a working path and a back-up path of the small-scale communication networks onto the same path of the long-distance communication network, when a redundant structure in the small-scale communication networks is to be realized over the long-distance communication network.
A data transmission device for connecting small-scale communication networks to one another with a long-distance communication network, said device comprising a unit for separating a working path from a back-up path of the small-scale communication networks in accordance with a signal transmitted through a path of the long-distance communication network onto which the working path and the back-up path are multiplexed, when a redundant structure in the small-scale communication networks is to be realized over the long-distance communication network.
Dependencies are inferred from the claim text.