Abstract:
The present invention relates to a method, an access node, an access edge node and a decentralized node for aggregating data traffic over an access domain. The decentralized node corresponds to one of the service providers, and is located in closer proximity with user domains to be serviced. The decentralized node maintains over the access domain one or several Virtual Local Area Networks, for aggregating thereon data traffic to be exchanged with the user domains, on behalf of the service provider domain. To allow proper aggregation of the data traffic, service bindings are created and stored at the access edge node, and further stored at the decentralized node and at the access node. Therefore, aggregation of the data traffic between the decentralized node and the user domains over the access domain is performed in accordance with the created service bindings.
Abstract:
A method and a related router comprising a network interface, a logical addressing module and a forwarding element card. The logical addressing module is capable of maintaining at least one local table associating at least one card of the router with at least a portion of at least one service provided by the router. The forwarding element card is capable of receiving a packet stream on the network interface, detecting that the packet stream requires further treatment from a further card of the router and, upon detection, consulting the local table to find an identifier, to which the further card is linked, based on information found in the packet stream before forwarding the packet stream toward the further card.
Abstract:
A router comprising a plurality of elements, each having an element identifier, subdivided into a plurality of groups of at least one element. Each group has a common identifier and each member within each group shares redundant capabilities. Each element is capable of communicating with another element by addressing information to the common identifier instead of the element identifier. Optionally, one element can be a member of more than one group. Another option suggests that all elements within a group share essential information associated with a service provided by the group. Another option is implemented through one element of the router identifying a primary element for a group, wherein the primary element serves requests addressed the corresponding common identifier. Yet another option suggests that one element is identified through configuration of the router as a primary element in its group to serve requests addressed to the common identifier.
Abstract:
A router and a router architecture comprising at least one network interface, a plurality of processing elements, at least one switching element and a plurality of forwarding elements. Each of the plurality of processing elements comprises at least one processing unit, wherein each processing unit is capable of processing network traffic to provide at least a portion of a network service. The switching element is capable of acting as a proxy of the plurality of processing elements while each of the plurality of forwarding elements is capable of receiving network traffic on the at least one network interface of the router and delegating processing of network traffic toward at least one of the plurality of processing elements through the at least one switching element.
Abstract:
An optical physical interface module is provided which includes a first optical physical interface, a second optical physical interface and one or more optical components. The first optical physical interface is configured to plug into a first connector and communicate optical signals toward the first connector. The second optical physical interface is configured to receive a second connector and communicate optical signals toward the second connector. The one or more optical components are operable to process optical signals between the first and second optical physical interfaces. The optical physical interface module may be provided at the edge of a circuit board so that the circuit board has an optical interface for external communication. The optical physical interface module may be a stand-alone module or integrated into a connector of an optical cable, among other configurations.
Abstract:
An optical patch unit is adapted for mounting in or on an optical equipment rack and facilitates a migration from one optical shuffle box or topology to another. The optical patch unit simplifies the replacement of an optical shuffle box, in some cases allowing a phased migration that minimizes system down-time. The optical patch units described herein include passive optical patch panels. Chassis card and optical shuffle connections are terminated at the passive optical patch panel, making it possible to simplify the cabling between the chassis cards and the optical shuffle box. Once installed, chassis card cables do not need to be manipulated at all during subsequent optical shuffle maintenance procedures. Other optical patch units described herein include active optical patch units, which make the migration process less dependent on human intervention and can further reduce system down-time.
Abstract:
A method and a related router comprising a network interface, a logical addressing module and a forwarding element card. The logical addressing module is capable of maintaining at least one local table associating at least one card of the router with at least a portion of at least one service provided by the router. The forwarding element card is capable of receiving a packet stream on the network interface, detecting that the packet stream requires further treatment from a further card of the router and, upon detection, consulting the local table to find an identifier, to which the further card is linked, based on information found in the packet stream before forwarding the packet stream toward the further card.
Abstract:
An optical adapter includes an optical coupler, a plurality of fiber optic cables and an optical wavelength conversion device. The optical coupler is operable to receive a plurality of multi-mode single-wavelength optical signals having the same frequency. The plurality of fiber optic cables are arranged in parallel and each have a first end connected to the optical coupler and the other end is coupled to the optical wavelength conversion device. The optical wavelength conversion device is operable to optically convert between the plurality of multi-mode single-wavelength optical signals at the same frequency and a plurality of single-mode optical signals at different frequencies and multiplex the plurality of single-mode optical signals at the different frequencies onto a single-mode multi-wavelength optical waveguide. A corresponding optical adapter is provided for the receive side.
Abstract:
Fluid-cooling technology developed for printed circuit boards (PCBs) and electronics assemblies is combined with optical-based interconnect technology, thereby enabling efficient fabrication of PCBs with free-space optical bearers. Since cooling components such as fans and heat sinks are no longer required on the PCB, the PCB is thinner and makes better use of a cooling substrate by also using it to carry optical signals. A card or a backplane supporting a plurality of active components can combine optical signals and cooling aspects in support of those components.
Abstract:
Fluid-cooling technology developed for printed circuit boards (PCBs) and electronics assemblies is combined with optical-based interconnect technology, thereby enabling efficient fabrication of PCBs with free-space optical bearers. Since cooling components such as fans and heat sinks are no longer required on the PCB, the PCB is thinner and makes better use of a cooling substrate by also using it to carry optical signals. A card or a backplane supporting a plurality of active components can combine optical signals and cooling aspects in support of those components.