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:
May. 18, 2004
Filed:
Jan. 28, 2000
Applicant:
Inventors:
Thomas Hardjono, Arlington, MA (US);
Brad Cain, Cambridge, MA (US);
Assignee:
Nortel Networks Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 ;
U.S. Cl.
CPC ...
H04L 9/00 ;
Abstract
A method and apparatus for distributing key certificates across PIM-SM routing domains by MSDP messages. A rendez-vous point RP in a PIM-SM domain can have a MSDP peering relationship with other rendez-vous point RP's in other domains. The peering relationship is a transport control protocol (TCP). Each domain has a connection to the MSDP topology through which it can exchange control information with active sources and rendez-vous points RP's in other domains. The normal source-tree building mechanism in PIM-SM is used to deliver multicast data over an internet domain distribution tree.