US Patent 7656886 Non-blocking internet backbone network
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A method and system for computing the maximum amount of admissible ingress and egress traffic of each edge router of the MPLS core network is presented. As long as the ingress and egress traffic amounts are below the admissible amount limit, traffic routes through any link in the network will never exceeds the link capacity. A calculation scheme and a load-distribution scheme make an Internet MPLS backbone network non-blocking. The output of the route computation algorithm includes a set of paths for any source-destination pair and the load distribution ratios among the paths. The routing algorithm and the associated distribution scheme will determine how to balance the loads that meet the distribution requirements specified by the ratios computed from the route algorithm. This greatly simplifies call admission control and allows hard QoS to be supported in a large scale and cross domains in the Internet.
US Patent 07656886 Non-blocking internet backbone network US Patent 7656886 Non-blocking internet backbone network
US Patent 07656886 Non-blocking internet backbone network
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