Patent ID: 9025447
Filing Date: 2015-05-05
Classification: H04L

Abstract:
1. A service admission control method in a communication network comprising a service cluster of groups of nodes, said groups being linked by physical links, the method comprising, at the application layer, the steps of: receiving a service establishment attempt from one node of one group, the service establishment attempt concerning a service between communicating endpoints of distinct groups; admitting the service in the communication network depending on a physical topology, of the physical links in order to control the congestion of each individual hop implied by each physical media path used between the communicating endpoints; performing, at the application layer, a service routing with a service routing table representing all physical links between the groups and associating each group with all other groups that are adjacent to said group via a same physical link, and with a call admission control threshold, wherein the service routing table is such that, for a point-to-multipoint physical link from a first group to adjacent second and third groups, said first group is associated with said adjacent second and third groups and with a unique call admission control threshold, and wherein the service routing is such that, for each call admission control threshold, said call admission control threshold is decremented when the service establishment attempt concerns a physical link between the group and one adjacent group which are associated with said call admission control threshold and when the call admission control threshold is high enough to admit the service.