Patent attributes
Described herein are systems and methods to improve multicast network performance by improving bootstrap message (BSM) in a bootstrap router (BSR). After BSR election, all candidate Rendezvous Points (C-RPs) send their group-to-RP mapping information to the elected BSR (E-BSR). The E-BSR collects the group-to-RP information from C-RPs and forms bootstrap message (BSM) comprising information of a RP set. A global flag and one or more group flags are incorporated into the BSM to indicate whether the BSM has changed since last transmission and which part of the BSM has changed. The length of the BSM to be transmitted may be dynamically determined. Upon receiving the BSM, each multicast router may operate according to the flags embedded in the BSM. Therefore, the processing process for the BSM at multicast router side may be simplified.
