Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2003-06-04
2009-02-17
Duong, Frank (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S467000, C370S907000
Reexamination Certificate
active
07492774
ABSTRACT:
A heterogeneous network consists of an OTN-type sub-network and an SDH type sub-network. The sub-networks are interconnected by an interconnection node network element (NE) which has a first interface (O1-On) connected to OTN-type sub-network (OTN) and a second interface (S1-Sn) connected the SDH-type sub-network (SDH). Management information messages from the data communication channels of received SDH signals and management information messages from the general communication channels of received OTN signals are extracted in the corresponding interfaces. All messages are then fed via a LAN to a common routing engine (R), which routes the management information messages between the OTN and SDH sub-networks.
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A. McGuire et al, “Interworking Between SDH and OTN-Based Transport Networks”, BT Technology Journal, BT Laboratories, gb, vol. 19, No. 3 Jul. 2001, pp. 143-151, XP008000181.
Alcatel
Duong Frank
Sughrue & Mion, PLLC
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