US 11,784,913 B2
Methodology for efficient upstream multicast in PON networks
Leslie Robert Murray, The Colony, TX (US); James J. Gainer, Decatur, TX (US); and Thomas Ray Dobozy, Frisco, TX (US)
Assigned to TELLABS ENTERPRISE, INC., Dallas, TX (US)
Filed by TELLABS ENTERPRISES, INC., Dallas, TX (US)
Filed on Feb. 18, 2021, as Appl. No. 17/178,902.
Application 17/178,902 is a continuation of application No. 16/289,465, filed on Feb. 28, 2019, granted, now 10,958,565.
Claims priority of provisional application 62/636,650, filed on Feb. 28, 2018.
Prior Publication US 2021/0288900 A1, Sep. 16, 2021
Int. Cl. H04L 12/28 (2006.01); H04L 45/16 (2022.01); H04L 12/18 (2006.01); H04L 49/201 (2022.01)
CPC H04L 45/16 (2013.01) [H04L 12/185 (2013.01); H04L 12/2898 (2013.01); H04L 49/201 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for efficient passive optical network (PON) upstream multicast comprising:
a computer network comprising:
a line terminal comprising a multicast port, said multicast port configured to send an upstream multicast packet sent from a first network terminal back downstream to at least said first network terminal;
said first network terminal comprising:
a first network interface coupled to said first network terminal, said first network terminal being configured to receive said upstream multicast packet from said first network interface and to cause said upstream multicast packet to be communicated to said line terminal; and
a network filter configured to regulate transmission of said upstream multicast packet,
wherein said network filter is a per port multicast express filter configured to restrict communication of upstream multicast packet based on a learned source internet protocol (IP) address and a multicast group destination address, said learned source IP address corresponding to said first network interface.