Patent ID: 7583669
Filing Date: 2009-09-01
Classification: H04J,H04L,H04Q

Abstract:
1. A method of dynamically managing multicast groups for communication-broadcasting convergence based on IGMP snooping-based in a WDM-PON having an OLT and a plurality of ONTs, comprising: a first step of allowing the OLT to allocate individual data wavelengths λ a second step of, if the message is a multicast group join message of a specific ONT as a result of the checking at the first step, determining whether the group is a newly created group or an existing registered group; a third step of, if it is determined that the group is a newly created group as a result of the determination at the second step, determining a multicast type of the group by ascertaining the depth of allowable maximum multicast groups within a bandwidth of the broadcasting wavelength λ a fourth step of, if it is determined that the group is an existing registered group as a result of the determination at the second step, determining a multicast type of the group by ascertaining the depth of allowable maximum multicast groups within the bandwidth of the broadcasting wavelength λ