US Patent No. 9,350,453

OPTICAL ACCESS NETWORK HAVING EMITTER-FREE CUSTOMER PREMISE EQUIPMENT AND ADAPTIVE COMMUNICATION SCHEDULING


Patent No. 9,350,453
Issue Date May 24, 2016
Title Optical Access Network Having Emitter-free Customer Premise Equipment And Adaptive Communication Scheduling
Inventorship Pradeep Sindhu, Los Altos Hills, CA (US)
Jayabharat Boddu, Los Altos, CA (US)
Roberto Marcoccia, San Jose, CA (US)
Theodore John Schmidt, Gilroy, CA (US)
Christian Malouin, San Jose, CA (US)
Abhijit Kumar Choudhury, Cupertino, CA (US)
James Michael Murphy, Alameda, CA (US)
Assignee Juniper Networks, Inc., Sunnyvale, CA (US)

Claim of US Patent No. 9,350,453

1. A method comprising:
executing, with a routing component of a router, routing protocols to communicate routing information with peer routing devices;
maintaining, with the routing component, routing information that describes a topology of a network in accordance with the
routing information;

programming a plurality of forwarding components coupled to the routing component with forwarding information based on the
routing information, wherein the forwarding information controls forwarding of network packets by the respective forwarding
component;

scheduling, with a scheduler executing on an optical interface of an interface card installed within one of the forwarding
components, upstream communication by a plurality of customer premise equipment (CPEs) coupled to the optical interface;

outputting, with the optical interface and in accordance with the schedule, an unmodulated optical receive signal to the CPEs
for upstream communication by the plurality by CPEs, and

receiving the upstream communications from the CPEs in accordance with the schedule and routing the upstream communications
in accordance with the routing information.