Abstract: A module connection assembly connects modules in a torus configuration that can be changed remotely. In particular, a single module can be added to or deleted from the configuration by remotely switching from conducting paths that provide end-around electrical paths to conducting paths that provide pass-through electrical paths. The assembly includes two backplanes, a first set of module connectors for electrically connecting modules to one of the backplanes, and a second set of module connectors for electrically connecting modules to the other backplane. The assembly further includes configuration controllers. Each configuration controller selects between end-around electrical paths that electrically connect multiple module connectors of the first set to each other, and pass-through electrical paths that electrically connect module connectors of the first set to module connectors of the second set.

Abstract: A router system includes a rack, a first array of fabric router modules interconnected in a router fabric and housed in a first housing mounted on the rack, and a second array of fabric modules interconnected in a router fabric and housed in a second housing mounted adjacent to the first housing in the rack. The first and the second arrays of fabric router modules are connected together with fabric connections to form a system router fabric.

Abstract: A network is disclosed for interconnecting devices external to the network. Embodiments of the network include a plurality of switching nodes interconnected by links forming or capable of forming a Gamma graph interconnection network. Devices are coupled to the network via a plurality of ports. Furthermore, the network includes a plurality of Infiniband buses with each switching node coupled to at least one of the buses. Each Infiniband bus is capable of supporting a configurable number of ports such that the bandwidth of a port is inversely proportional to the number of ports configured per bus. The Gamma graph interconnection network of the router providing for high port counts and increased bandwidth availability. Furthermore, the use of industry standard buses, such as Infiniband buses, allow for the interconnection of multiple heterogeneous application specific modules to interface and communicate with one another.

Abstract: An interconnection network, particularly a Gamma graph network, comprising a number of interconnected routers implementing source based and egress based virtual networks in order to prevent tree saturation and deadlock while routing packets. The interconnection network can be used as a fabric within a multi-application switch router, for example. Packets traverse the fabric from any packet source to any packet destination by traversing a source based virtual network associated with a packet source and then by traversing an egress based virtual network associated with a packet destination. By partitioning the fabric into source based virtual networks and egress based virtual networks, the number of control structures required to manage them are reduced as compared with destination based virtual network architectures.

Abstract: A router coupled to a plurality of external links transporting data packets to and from the router. Embodiments of the router including a plurality of fabric routers interconnected by fabric links forming or capable of forming a Gamma graph interconnection network. One or more external links are coupled to each fabric router allowing the routing of packets between external links by traversing one or more hops across the fabric links. The Gamma graph interconnection network of the router providing for high port counts and increased bandwidth availability. Furthermore, the use of industry standard buses, such as Infiniband buses, allow for the interconnection of multiple heterogeneous application specific modules to interface and communicate with one another.

Abstract: A module connection assembly connects modules in a torus configuration that can be changed remotely. In particular, a single module can be added to or deleted from the configuration by remotely switching from conducting paths that provide end-around electrical paths to conducting paths that provide pass-through electrical paths. The assembly includes two backplanes, a first set of module connectors for electrically connecting modules to one of the backplanes, and a second set of module connectors for electrically connecting modules to the other backplane. The assembly further includes configuration controllers. Each configuration controller selects between end-around electrical paths that electrically connect multiple module connectors of the first set to each other, and pass-through electrical paths that electrically connect module connectors of the first set to module connectors of the second set.

Abstract: A router routes data packets. The router includes input physical channels for incrementally receiving portions of the data packets, and output physical channels. The router further includes data buffers, coupled with the input and output physical channels, for storing the portions of the data packets. The router further includes control circuitry, coupled with the input and output physical channels and the data buffers, for generating virtual channel assignments that assign virtual channels to the data packets, and generating physical channel assignments that assign the output physical channels to the virtual channels. Each of the assignments is generated in response to queued arrival and credit events. The portions of the data packets are forwarded from the data buffers to the output physical channels according to the generate virtual and physical channel assignments.

Abstract: A module connection assembly connects modules in a torus configuration that can be changed remotely. In particular, a single module can be added to or deleted from the configuration by remotely switching from conducting paths that provide end-around electrical paths to conducting paths that provide pass-through electrical paths. The assembly includes two backplanes, a first set of module connectors for electrically connecting modules to one of the backplanes, and a second set of module connectors for electrically connecting modules to the other backplane. The assembly further includes configuration controllers. Each configuration controller selects between end-around electrical paths that electrically connect multiple module connectors of the first set to each other, and pass-through electrical paths that electrically connect module connectors of the first set to module connectors of the second set.