Method and apparatus for transmitting LAN data over a synchronous wide area network
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United States of America Patent
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Sep 19, 2000
Issued Date -
N/A
app pub date -
Feb 14, 1997
filing date -
Jul 22, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A packet of data is received from a LAN and transmitted over a WAN, by retaining the native LAN frame format of the packet during transmission across the WAN. Thus, LAN data may be transmitted over a SONET point-to-point link within a WAN network without the interim steps of creating ATM cells or other WAN transport packaging protocols. Instead, the LAN data may be transmitted directly over the SONET link as raw data, and reconstructed directly at the receiving end of the SONET link. A first buffer stores data from the LAN so that a corresponding packet size may be determined, and a second buffer stores data from the WAN to account for any speed difference between the LAN circuitry and WAN circuitry.
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