Hewlett Packard Enterprise Development LP

David M Olson

Kevin B Leigh

Jason Douglas Jung

John M Wastlick

Darel N Emmot

Nicholas George McDonald

Christopher Michael Brueggen

Norell Estella Menhusen

Erin Hallinan

John Kim

A switch includes a plurality of ingress ports, a plurality of egress ports, and a plurality of buffers comprising a buffer coupled to each ingress port, egress port pair. An ingress port is to determine a plurality of potential egress ports for a packet. The ingress port is to select an egress port of the plurality of potential egress ports based on congestion of the corresponding buffers coupled to the ingress port and to each of the plurality of potential egress ports. The ingress port is to place the packet into the corresponding buffer coupled to the ingress port and the selected egress port.

Route selection based on buffer congestion

A virtual channel (VC) allocation system is provided. During operation, the system can maintain, at an ingress port of a switch, a set of counters. A respective counter can indicate a number of data units queued at a corresponding egress port for an ingress VC. A data unit can indicate a minimum number of bits needed to form a packet. The system can maintain, at an egress port, an ingress VC indicator indicating that a packet in an egress buffer for an egress VC corresponds to the ingress VC. Upon sending the packet, the system can update a counter based on the ingress VC indicator. The counter can be associated with the egress buffer and the ingress VC. The system can then issue, to a sender device, credits associated with the ingress VC based on a minimum number of available data units indicated by the set of counters.

Method and system for virtual channel remapping

An optical transceiver includes electrical inputs that each correspond to a selected port of a number of network ports and a selected network lane of the selected port. The optical transceiver includes optical transmitters organized in groups to optically transmit data received at the inputs over a plurality of optical transmission fibers to which the groups correspond. The optical transceiver includes multiplexers corresponding to the transmission fibers. Each multiplexer is to wave-division multiplex the data transmitted by the transmitters within the group corresponding to the transmission fiber to which the multiplexer corresponds. The optical transceiver includes hardware logic to differently map the inputs to the transmitters according to a selected mode of a number of switchable modes corresponding to different data transmission bandwidths.

Optical transceiver having switchable modes corresponding to different data bandwidths

Example methods and apparatus to implement an electrical/optical transceiver to facilitate data transfer are disclosed. An example apparatus includes an electrical transceiver lane to transfer data at a first bandwidth over an electrical link. The example apparatus also includes a plurality of optical transceiver sub-lanes to transfer data over an optical link. The example apparatus also includes a lane switch to dynamically map the electrical transceiver lane to the plurality of optical transceiver sub-lanes based on an analysis of the first bandwidth and the plurality of optical transceiver sub-lanes to accommodate the first bandwidth with at least a subset of the plurality of optical transceiver sub-lanes to transfer data between the electrical link and the optical link.

Optical links with elastic bandwidth and resiliency for dynamically adaptable end-to-end bandwidth and link reliability

A rework re-timer with forward error correction handling is disclosed. An example first intermediate transceiver includes a first interface to communicatively couple the first intermediate transceiver with a first computing device, a second interface to communicatively couple the first intermediate transceiver to a second intermediate transceiver configured to be communicatively coupled with a second computing device, an auto-negotiation controller to: terminate a first auto-negotiation with the first computing device before the first auto-negotiation is completed, transmit, to the second transceiver, first capabilities of the first computing device determined during the first auto-negotiation, and perform a second auto-negotiation with the first computing device utilizing the first capabilities of the first computing device and second capabilities of the second computing device received from the second transceiver.

Network transceiver with auto-negotiation handling

A network re-timer with forward error correction handling is disclosed. An example network re-timer includes a first receiver to receive data from a first connected device and to re-time the data to generate re-timed data, a first transmitter to transmit the re-timed data to a second connected device, a first auto-negotiation handler communicatively coupled to the first receiver to control a first forward error correction mode for communications with the first connected device, and a second auto-negotiation handler communicatively coupled to the first transmitter to control a second forward error correction mode for communications with the second connected device, wherein the first forward error correction mode is different than the second forward error correction mode.

Network re-timer with forward error correction handling

A network transceiver is disclosed. An example system includes a first networking transceiver including a first port and a second port, the first transceiver configured to: negotiate, for use with the first port, a first data rate, negotiate, for use with the second port, a second data rate that is slower than the first data rate, and a second networking transceiver communicatively coupled with the first networking transceiver to communicatively couple computing devices connected to the first networking transceiver to a multi-lane communication port, the second networking transceiver to negotiate, for the multi-lane communication port, a third data rate for communications between the multi-lane communication port and the second networking transceiver.

Growing community of inventors

Grapeland, TX, United States of America

David M Olson