Hewlett Packard Enterprise Development LP

Lucian Popa

Jeffrey Clifford Mogul

Sujata Banerjee

Praveen Yalagandula

Puneet Sharma

Michael S Schlansker

Jean Tourrilhes

Yoshio Frank Turner

Jung Gun Lee

Paul T Congdon

Jayaram Mudigonda

Jose Renato G Santos

Alvin Auyoung

Example embodiments relate to work conserving bandwidth guarantees using priority, and a method for determining VM-to-VM bandwidth guarantees between a source virtual machine (VM) and at least one destination VM, including a particular VM-toVM bandwidth guarantee between the source VM and a particular destination VM. The method includes monitoring outbound network traffic flow from the source VM to the particular destination VM. The method includes comparing the outbound network traffic flow to the particular VM-to-VM bandwidth guarantee. When the outbound network traffic flow is less than the particular VM-to-VM bandwidth guarantee, packets of the flow are directed according to a first priority. When the outbound network traffic flow is greater than the particular VM-to-VM bandwidth guarantee, packets of the flow are directed according to a second priority.

Priority assessment of network traffic to conserve bandwidth guarantees in a data center

An example method for allocating resources in accordance with aspects of the present disclosure includes collecting proposals from a plurality of modules, the proposals assigning the resources to the plurality of modules and resulting in topology changes in a computer network environment, identifying a set of proposals in the proposals, the set of proposals complying with policies associated with the plurality of modules, instructing the plurality of modules to evaluate the set of proposals, selecting a proposal from the set of proposals, and instructing at least one module associated with the selected proposal to instantiate the selected proposal.

Resource allocator

According to an example, a method for bandwidth guarantee and work conservation includes determining virtual machine (VM) bandwidth guarantees assigned to VMs in a network including a source VM that communicates with destination VMs. The method further includes assigning minimum bandwidth guarantees to communications between the source VM with the destination VMs by dividing a VM bandwidth guarantee assigned to the source VM between the destination VMs based on active VM-to-VM communications between the source VM and the destination VMs. The method also includes allocating, by a processor, spare bandwidth capacity in the network to a communication between the source VM and a destination VM based on the assigned minimum bandwidth guarantees.

Bandwidth guarantee and work conservation

A network switch for reducing TCP timeouts due to incast collapse is disclosed. The network switch has a plurality of buffers for storing network packets for at least one sender server. An incast buffer management component in the network switch allocates a buffer in the plurality of buffers to store an incast notification packet, the incast notification packet indicating one or more network packets that have been dropped by the network switch. The network switch also includes an incast notification component for forwarding the incast notification packet to a destination server with an incast notification packet specific header.

Reducing TCP timeouts due to Incast collapse at a network switch

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Palo Alto, CA, United States of America

Lucian Popa