Cluster bandwidth management algorithms

摘要

A method to manage the bandwidth of a link that is available to a cluster of servers. The method includes establishing a localized bandwidth management policy for at least one of the servers from a centralized management policy of the cluster. The localized policy and the centralized policy are based on a hierarchical policy having a plurality of rules associated with classes of connections that are routed through the link. Each of the rules has an associated rate. The plurality of rules includes a plurality of terminal rules. Establishing the localized policy is performed by prorating the rate of at least one of the terminal rules under the centralized policy according to a first measurement of a usage of the link by the at least one server for the at least one terminal rule. The method also includes operating the at least one server according to the localized policy.