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公开(公告)号：JP2002111741A
公开(公告)日：2002-04-12
申请号：JP2001250223
申请日：2001-08-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： FATEHI MOHAMMAD T , LAWRENCE VICTOR B , SOHRABY KAZEM A
Abstract: PROBLEM TO BE SOLVED: To enable to handle ATM cells and IP packets when a multi-traffic type is carried. SOLUTION: Network nodes 105, 110, 115 and 120 transfer mixed different types of traffics having a plurality of protocol formats which are supplied by a plurality of users or sub networks in a communication network 100. The different types of traffics are packed in a digital container by which routing between interconnected users or network nodes of the sub networks are performed. The digital container has a frame structure which is composed of a header section and a payload section.
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Patent Agency Ranking
公开(公告)号：JP2001148875A
公开(公告)日：2001-05-29
申请号：JP2000262277
申请日：2000-08-31
Applicant: LUCENT TECHNOLOGIES INC
Inventor： FATEHI MOHAMMED T , LAWRENCE VICTOR B , SOHRABY KAZEM A
Abstract: PROBLEM TO BE SOLVED: To prevent opto/electric signal conversion or electro/optic signal conversion for access to a payload and to confirm actual connection between an input and output independently. SOLUTION: This invention provides a method that confirms proper path selection of an optical signal between an input and an output of an optical cross connect according to a specified routing path defined in a cross connect map. Concretely, the optical signal is independently tagged by a connection confirmation message including identification information at a cross connect input port 110. A cross connect output port 120 retrieves the message from the optical signal, the message can optionally be eliminated and the identification information from the retrieved message is compared with a routing defined in a cross connect map 103. In the case that no path selection is confirmed for the optical signal according to the specified connection defined in the cross connect map, a relief action like disconnection can be started.
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公开(公告)号：DE60213926T2
公开(公告)日：2007-02-08
申请号：DE60213926
申请日：2002-01-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ERFANI SHERVI N , LAWRENCE VICTOR B , SOHRABY KAZEM A
IPC: H04Q11/00
Abstract: The present invention is an enhanced signaling system (ESS) that provides a signaling platform that is independent of the electronics and optical switching and transmission systems. The invention provides controllability on an end-end basis to a concatenation of optical and electronic systems by the service providers and end users. Since the present invention enables control over the transport network resources by the end user and service providers, it accelerates the process of service creation and network service expansion. By providing end-end control over the connection, it allows total control of service requirements and QoS. Accordingly, service providers can allocate transport network resources in a dynamic fashion independent of other network users (when dedicated wavelengths and resources are allocated), or in conjunction with other users when sharing of transport wavelengths is allowed. By isolating the signaling and transport mechanisms and by providing fabric-independent resource allocation mechanisms, the ESS offers control over end-end resources in a cost effective manner over very short period of time. In one exemplary embodiment of the invention, an apparatus for providing signaling for switching and control of transmissions in an integrated optical network includes a plurality of electrical signaling interfaces for receiving requests from external signaling networks and a processing module for processing the requests from the external signaling networks. At least one optical signaling interface is included for coupling to optical components in the integrated optical network. The optical signaling interface is operable to transmit processed requests from the processing module for assignment of optical channels for the optical components.
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4.发明专利
公开(公告)号：CA2351130A1
公开(公告)日：2002-02-22
申请号：CA2351130
申请日：2001-06-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LAWRENCE VICTOR B , FATEHI MOHAMMAD T , SOHRABY KAZEM A
Abstract: A system and method are described for transporting a heterogeneous mix of traffic having one or more protocol formats and supplied by one or more user s or sub-networks in a communication network. Heterogeneous traffic is packaged into digital containers that are routed and processed in network nodes interconnecting the users or sub-networks. A digital container includes a frame structure comprising a header section and a payload section, wherein the header section includes information for routing the digital container and for identifying the type o f payload being carried. The payload section is capable of carrying one or more different types of traffic formatted according to one or more protocols, e.g., IP, ATM , etc. As such, traffic supplied by one user node may comprise ATM cells, another may comprise IP packets, and so on. Traffic from each of the user nodes is combined in digital containers at a network node for transport over a core transport network via other network nodes. Because processing and routing of digital containers occurs at the network node level, a digital container is therefore assembled or otherwise formed so that the payload contents only include traffic for user nodes serviced by the same network node. Processing of the individual payload remains a user o r sub- network responsibility while the less processor-intensive routing and processing of digital containers occurs at the network node level.
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公开(公告)号：DE60213926D1
公开(公告)日：2006-09-28
申请号：DE60213926
申请日：2002-01-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ERFANI SHERVI N , LAWRENCE VICTOR B , SOHRABY KAZEM A
IPC: H04Q11/00
Abstract: The present invention is an enhanced signaling system (ESS) that provides a signaling platform that is independent of the electronics and optical switching and transmission systems. The invention provides controllability on an end-end basis to a concatenation of optical and electronic systems by the service providers and end users. Since the present invention enables control over the transport network resources by the end user and service providers, it accelerates the process of service creation and network service expansion. By providing end-end control over the connection, it allows total control of service requirements and QoS. Accordingly, service providers can allocate transport network resources in a dynamic fashion independent of other network users (when dedicated wavelengths and resources are allocated), or in conjunction with other users when sharing of transport wavelengths is allowed. By isolating the signaling and transport mechanisms and by providing fabric-independent resource allocation mechanisms, the ESS offers control over end-end resources in a cost effective manner over very short period of time. In one exemplary embodiment of the invention, an apparatus for providing signaling for switching and control of transmissions in an integrated optical network includes a plurality of electrical signaling interfaces for receiving requests from external signaling networks and a processing module for processing the requests from the external signaling networks. At least one optical signaling interface is included for coupling to optical components in the integrated optical network. The optical signaling interface is operable to transmit processed requests from the processing module for assignment of optical channels for the optical components.
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公开(公告)号：CA2316544A1
公开(公告)日：2001-02-28
申请号：CA2316544
申请日：2000-08-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SOHRABY KAZEM A , FATEHI MOHAMMAD T , LAWRENCE VICTOR B
Abstract: A method is provided for verifying that optical signals are properly rout ed between inputs and outputs of an optical cross-connect according to the prescribed routing paths defined in the cross-connect map. More specifically, optical signals are independently tagged at the cross-connect input ports with connection verification messages containing identification information. Connection verification messages can include, among other information, a message identification, incoming and outgoing wavelength information, incoming and outgoing port information, a time stamp, user verification data, and so on. At the cross-connect output ports, the messages are retrieved (and optionally removed) from the optical signals so that the identification information from the retrieved messages can be compared to th e routing defined in the cross-connect map. If an optical signal is verified a s not being routed according to the prescribed connection defined in the cross- connect map, then remedial action, such as tearing down the connection, can be initiated. By applying the tag to the optical signal, cross-connections can be verified in cross-connect applications employing one optical signal (i.e., wavelength) a t each input and output port or applications employing a WDM signal having many optical channels ofdifferent wavelengths at each input and output port.
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