Huawei Technologies Co., Limited

University of Toronto

Huawei Technologies Canada Co., Ltd.

Yashar Ganjali

Xingjun Chu

Ali Munir

Mahmoud Mohamed Bahnasy

Zhenhua Hu

Ashkan Sobhani

Amir Baniamerian

Shiva Ketabi

Sepehr Abbasi Zadeh

Fenglin Li

Si Yan

Ron Thomas

Xiaolong Zheng

Farid Zandi

Parsa Pazhooheshy

Soheil Abbasloo

Seyed Hossein Mortazavi

A method and a network device are provided for transferring data packets to a port according to the priority of the packets and, when a packet is dropped, providing, to the sender of the packets, an early notification that the packet was dropped. The priority of a packet can be determined according to data contained in the packet, e.g., an operation code of the packet, or according to a marking of the packet by the sender, e.g., a marking resulting from a weighted random early detection template. The early notification that the packet was dropped is in the form of message generated at the network device and sent by the network device to the sender of the packet. The network device obtains, from the packet to be dropped or from a connection table, the information required for the message to arrive at the sender.

Method and apparatus for managing a packet received at a switch

The disclosure may provide methods, systems and apparatus related to a switch-assisted transport layer using network-aware rate adjustment. According to an aspect, a method by a network device may be provided. The method includes receiving one or more data packets corresponding to one or more flows to be forwarded through an egress port of the network device. Each data packet may indicate a flow demand per time period T for a corresponding flow of the one or more flows. The method further includes determining a demand value for the egress port based on the indicated flow demand. The method further includes sending the one or more data packets through the egress port. Each data packet sent may indicate a value for an aggregated demand of the corresponding flow, The value for the aggregated demand may be based on the determined demand value.

System and methods for network-aware rate adjustment

There is provided a method and apparatus to provide notification of change events for microburst mitigation. The method is used by a sending device and includes tracking changes in scheduled data to be sent in a traffic flow and identifying a positive change in an amount of scheduled data to be sent in the traffic flow. The sending device then marks one or more packets to be sent in the traffic flow with a notification field, and then transmits the one or more packets including the notification field. The notification field can then be used by a recipient device, for example a network element, to identify and mitigate microbursts in a proactive manner.

System and method for a scalable source notification mechanism for in-network events

In cloud computing, for various reasons such as load-balancing, hotspot elimination, server consolidation, energy and cost savings, and system maintenance, there is a need to migrate a virtual sub-network of virtual entities from a source network of servers to a destination set of servers. Existing migration methods are limited to the migration of VM memory and controller states, where network entities are migrated individually. Embodiments of this disclosure include systems and methods for the stateful live migration of a multi-layer network, while maintaining live state convergence and consistency, and preventing network connection losses, packet disordering and packet drops.

Systems and methods to migrate a virtual sub-network

There is provided a method and apparatus to generate temporal congestion signals. The method is used by a device and includes receiving a packet which includes a request for network state information and generating one or more temporal congestion signals. The method also including adding the temporal congestion signals to the packet and transmitting the packet including the temporal congestion signals. The temporal congestion signals can include one or more of a line busyness signal, which measures the duration of a busy period of the device, and a line idleness signal, which measures the duration of an idle period of the device.

Hardware accelerated temporal congestion signals

There is provided methods and devices for network management. A method includes receiving at least one data flow, transmitting in-band management packet periodically for each of the at least one data flow, receiving in-band acknowledgement packets for each of the at least one data flow, and producing network management data based on received in-band acknowledgement packets. A device includes a processor, and a non-transient computer readable memory having stored thereon machine executable instructions which when executed by the processor configure the device to execute the methods disclosed herein. A system includes a source node, a receiver and a data-plane device, the system configured to execute the methods disclosed herein.

Methods, systems and devices for network management using control packets

Growing community of inventors

Kanata, Canada

Yashar Ganjali