The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2004
Filed:
Oct. 20, 1999
Cheng Y. Lee, Ottawa, CA;
Nabil Seddigh, North Gower, CA;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A method as apparatus for controlling the number of egress points at an ingress node in a multicast tree in a differentiated services network is described. A resource management entity is provided in each edge node in the entity. The resource management entity in the ingress node stores data from a service level specification that specifies the bandwidth, type of service and a limit on the number of egress points that can be grafted to the ingress node. The grafting of egress points to the node is controlled by the limit. If a new egress point cannot be grafted to the ingress node, the downstream node requesting the graft is preferably provided with graft redirect options to permit the downstream node to graft to an existing branch of the multicast tree. The advantage is automated, dynamic control of the multicast tree so that service is delivered in accordance with a service level agreement that governs service delivery for the dynamic multicast tree.