| Patent application number | Description | Published |
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| 20110075592 | Method of Data Delivery Across a Network - The present invention provides a method of preserving packet ordering in a multi-path network having a plurality of network elements interconnected by network links wherein for each data packet arriving at an egress port of the multi-path network, a delivery acknowledgement is issued by the egress port and is transmitted across the network following in reverse the path taken by the data packet being acknowledged, and wherein the state of each link in the path taken by the data packet being acknowledged is updated by the acknowledgement. The present invention further provides a multi-path network for use in a bridge, switch, router, hub or the like, the multi-path network comprising a plurality of network ports; a plurality of network elements; and a plurality of network links interconnecting the network elements and the network ports for transporting data packets, each network egress port including acknowledgement means for issuing a delivery acknowledgement in response to receipt of a data packet and each network element being adapted to transmitted a delivery acknowledgment in the opposite direction along the path taken by the data packet being acknowledged and being further adapted to update the state of at least one of the network links to which it is connected in response to receipt of an acknowledgement. The invention further provides an Ethernet bridge or router incorporating such a multi-path network. | 03-31-2011 |
| 20110085567 | METHOD OF DATA DELIVERY ACROSS A NETWORK - The present invention relates to a method of sorting data packets in a multi- path network having a plurality of ports; a plurality of network links; and a plurality of network elements, each network element having at least first and second separately addressable buffers in communication with a network link and the network links interconnecting the network elements and connecting the network elements to the ports, the method comprising: sorting data packets with respect to their egress port or ports such that at a network element a first set of data packets intended for the same egress port are queued in said first buffer and at least one other data packet intended for an egress port other than the egress port of the first set of data packets is queued separately in said second buffer whereby said at least one other data packet is separated from any congestion associated with the first set of data packets. The present invention further relates to a method of data delivery in a multi-path network comprising the sorting of data packets in accordance with a first aspect of the present invention. The present invention further relates to a multi-path network operable to sort data packets and operable to deliver data in a multi-path network. | 04-14-2011 |
| 20110090797 | METHOD OF DATA DELIVERY ACROSS A NETWORK - The present invention relates to a method of managing congestion in a multi-path network, the network having a plurality of network elements arranged in a plurality of switch stages and a plurality of network links interconnecting the network elements, the method comprising the steps of detecting congestion on a network link, the congested network link interconnecting the output port of a first network element with a first input port of a second network element in a subsequent switch stage; identifying an uncongested network link connected to a second input port of said second network element; and directing future data packets on a route across the multi-path network which includes the identified uncongested network link. Also provided is a multi-path network and an Ethernet bridge or router incorporating such a multi-path network. | 04-21-2011 |
| 20110134924 | MULTI-PATH NETWORK - The present invention provides a multi-path network for use in a bridge, switch, router, hub or the like, comprising a plurality of network ports adapted for connection with one or more devices, each device having a different identifying address data; a plurality of network elements; and a plurality of network links interconnecting the network elements and connecting the network elements to the network ports, wherein the multi-path network further comprises separately addressable memory elements each adapted for storing device address data and the multi-path network is adapted to distribute a plurality of device address data amongst the plurality of memory elements. | 06-09-2011 |
| 20110149969 | Method of Controlling Data Propagation Within a Network - The present invention provides a method of limiting the frequency of floods within a data network, the floods arising as a data frame is routed to an unknown destination, the method comprising the steps of: (a) receiving ( | 06-23-2011 |
| 20110170405 | MULTI-PATH NETWORK - The present invention provides a multi-path network for use in a bridge, switch, router, hub or the like, the multi-path network including a plurality of network ports; a plurality of network elements; and a plurality of network links interconnecting the network elements and the network ports for transporting data packets, each network element including a fault monitor for detecting faults on the network links to which the network element is connected, a plurality of dynamically selectable output ports and output port selection mechanism and each network element being adapted to communicate the existence of a fault back to one or more other network elements via which network elements the faulty network link can be bypassed, and each network element being adapted to update the output port selection mechanism when communication of the existence of a fault is received so that only output ports which ensure the faulty network link is bypassed are dynamically selectable. Also provided is a method of managing faults in a multi-path network. | 07-14-2011 |
| 20110170553 | METHOD OF DATA DELIVERY ACROSS A NETWORK FABRIC IN A ROUTER OR ETHERNET BRIDGE - The invention provides an Ethernet bridge or router comprising a network fabric adapted to provide interconnectivity to a plurality of Ethernet ports, each of the Ethernet ports being adapted to receive and/or transmit Ethernet frames, and wherein the Ethernet bridge or router further comprises an encapsulator connected to receive Ethernet Protocol Data Units from the Ethernet ports, wherein the encapsulator is operable to generate a Fabric Protocol Data Unit from a received Ethernet Protocol Data Unit, the Fabric Protocol Data Unit comprising a header portion, and a payload portion which comprises the Ethernet Protocol Data Unit concerned, and wherein the encapsulator is operable to transform Ethernet destination address information from the Ethernet Protocol Data Unit into a routing definition for the network fabric, and to include this routing definition in the header portion of the Fabric Protocol Data Unit. Also provided is a method of data delivery across a network. | 07-14-2011 |
