International Business Machines Corporation

Md Abdul Alim

Bengi Karacali-Akyamac

Ali Sydney

Claude Basso

Nicolas Dupuis

Thomas James Christopher Ward

Pavlos Maniotis

Provided are a computer program product, system, and method for allocating network elements to slices of nodes in a network. Dedicated network elements are allocated to slices, defining sets of computational nodes, to provide dedicated paths in the network for the computational nodes in the slices to interconnect with other computational nodes in a same slice. The computational nodes connect to leaf switches and the leaf switches connect to spine switches. The spine switches interconnect the leaf switches. The dedicated network elements comprise at least one of a switch, an edge of at least one link, a link, and at least one queue of a port for a link. Switch routing rules are provided to at least one switch including the dedicated network elements to route packets from the computational nodes through the dedicated network elements allocated to the slices of the computational nodes.

Allocating network elements to slices of nodes in a network

Provided are a computer program product, system, and method for allocating bandwidth to communication paths used by nodes in a network. A request is received from a source node of the nodes to communicate with a destination node. A path is selected between the source node and the destination node. A determination is made of a per path allocated bandwidths for links in the selected path based on a number of common paths that share a link with the selected path. Allocated bandwidth for the selected path is set to a minimum of the per path allocated bandwidths for the links in the selected path. Information on the selected path and the allocated bandwidth is transmitted to the source node to use to communicate with the destination node.

Allocating bandwidth to communication paths used by nodes in a network

Embodiments for dynamic bandwidth allocation in cloud network switches in a cloud computing environment are provided. Quality of service (QoS) policies may be dynamically changed in one or more cloud network switches based on dynamically estimating expected traffic demands for each of a plurality of traffic classes, wherein bandwidth is dynamically allocated among queues based on changing the QoS policies.

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White Plains, NY, United States of America

Md Abdul Alim