Multiplex communications – Diagnostic testing – Fault detection
Reexamination Certificate
2007-06-05
2007-06-05
Chan, Wing (Department: 2616)
Multiplex communications
Diagnostic testing
Fault detection
C370S474000, C370S477000
Reexamination Certificate
active
09789849
ABSTRACT:
A method, apparatus and system are disclosed that more efficiently maps data into standard SONET concatenated payloads for transmission over established SONET networks. Framing information is added to a data stream to identify the beginning and ending locations of a payload. Next, the framed data stream is formatted into a non-standard STS-Nc packet. Two or more non-standard STS-Nc packets are combined to form a pseudo-standard STS-Nc packet that is supported by the established SONET network. According to one embodiment, a one Gbps Ethernet packet is framed using HDLC formatting, then formatted into an STS-24cpacket. Two STS-24cpackets are combined to form a pseudo-standard STS-48cpacket. In addition, the one Gbps Ethernet packet can be stored and retimed to the SONET data rate and transmitted across an established SONET network.
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Aritcle “Extending PPP over SONET/SDH, with virtual concatenation, high order & low order payloads”, N. Jones, C. Murton, Dec. 1999.
Article“Extending PPP over SONET/SDH, with virtual concatention, high order & low order payloads”, N. Jones, C. Murton, Dec. 1999.
Hall Robert A.
Quibodeaux Lane B.
Thurston Andrew J.
Campbell Stephenson Ascolese LLP
Chan Wing
Cisco Technology Inc.
Lee Andrew C.
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