Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2006-02-08
2009-12-29
Patel, Jayanti K (Department: 2419)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S392000
Reexamination Certificate
active
07639604
ABSTRACT:
When any communication port receives a packet from a network, it transmits the packet to a relay processing section. The relay processing section identifies a relay processing section of a transfer destination according to destination information included in the packet to transmit the packet to a packet switch section. When the relay processing section of the transfer destination is a working relay processing section, the packet switch section transfers the packet to the working relay processing section and a protection relay processing section.
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J. Manchester, “IP Over Sonet”, IEEE Communications Magazine, May 1998, pp. 136-142.
Baba Tomohiro
Hakuta Kazumi
Kawashima Taketoshi
Kimoto Hisanori
Masukawa Hirofumi
Brundidge & Stanger, P.C.
Hitachi , Ltd.
Patel Jayanti K
Sol Anthony
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