Method and system for enabling layer 2 transmission of IP data frame between user terminal and service provider
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United States of America Patent
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-
Dec 23, 2008
Grant Date -
Feb 20, 2003
app pub date -
Mar 8, 2002
filing date -
Aug 15, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a communication method: processing for designation of a service provider, user authentication, and IP address assignment is performed by exchanging management frames between a user terminal and a service provider through an access network; and main-signal frames each having an IPoE form and containing a source Layer 2 address of the user terminal are exchanged between the user terminal and the service provider through the access network. The management frames have a form which can be discriminated from the main-signal frames in Layer 2, and the access network holds information on correspondences between source Layer 2 addresses and virtual private networks. The access network recognizes one of the virtual private networks connected to the service provider, based on the source Layer 2 address contained in each main-signal frame, and transfers the main-signal frames in Layer 2 by MAC bridging.
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