Multicast admission control
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorGeorge Foti
Life of this patent
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Abstract
A resource admission control entity and method in an administrative domain (AD). The AD has a topology view that comprises link capacity and link usage information. The resource admission control entity receives a request intended for a user to obtain a multicast content, derives a list of links to be newly used by the multicast content based on the request and verifies if the multicast content can be admitted on the links to be newly used by the multicast content based on the topology view thereby providing an admittance verification result. If the admittance verification result is positive, the admission control module updates usage values in the topology view for the links to be newly used by the multicast content.
Claims11
A resource admission control entity in an administrative domain (AD) of an IPTV network, the resource admission control entity having a topology view of the AD which includes link capacity information and link usage, the resource admission control entity having an admission control module, located in a network, the admission control module comprising:
- a network interface for receiving a request intended for a user to obtain a multicast content;
- a processor for:
- verifying that a reservation of the content exists for the user;
- deriving a list of links to be newly used by the multicast content based on the request and the topology view;
- verifying that the multicast content can be admitted on the links to be newly used by the multicast content based on the topology view thereby providing an admittance verification result;
- and
- if the admittance verification result is positive, updating the link capacity information and link usage in the topology view for the links to be newly used by the multicast content, wherein the updated link capacity information of the topology view comprises remaining link capacity;
- wherein the request is received from an Edge Router (ER) of the AD and comprises the list of links to be newly used in the AD to transit the multicast content and wherein deriving a list of links to be newly used by the multicast content further comprises obtaining the list by reading the list in the request.
A method for admitting transition of a multicast content in an administrative domain (AD) of an IPTV network, comprising:
- in a resource admission control entity for the AD, receiving a request intended for a user to obtain the multicast content;
- in the resource admission control entity, verifying that a reservation of the content exists for the user;
- in the resource admission control entity, deriving a list of links to be newly used by the multicast content based on the request and a topology view of the AD;
- in the resource admission control entity, verifying if the multicast content can be admitted on the links to be newly used by the multicast content based on the topology view thereby providing an admittance verification result, wherein the topology view comprises link capacity information and link usage;
- and
- if the admittance verification result is positive, in the resource admission control entity, updating the link capacity information and link usage in the topology view for the links to be newly used by the multicast content, wherein the updated link capacity information of the topology view comprises remaining link capacity;
- wherein the request is received from an Edge Router (ER) of the AD and comprises the list of links to be newly used in the AD to transit the multicast content and wherein deriving a list of links to be newly used by the multicast content further comprises obtaining the list by reading the list in the request.
Dependencies are inferred from the claim text.