Cisco Technology, Inc.

Tung-Fai Chan

Alon Shlomo Bernstein

Sangeeta Ramakrishnan

Harshavardhan Parandekar

YuLing Chen

Gitesh Shah

Prasanna Mucharikar

Elastic capacity management of remote physical layer (R-PHY) nodes with a cloud Cable Modem Termination System (cCMTS) may be provided. First, a cCMTS instance may be spawned by an orchestrator. Next, the cCMTS instance may be synchronized with states of a physical Cable Modem Termination System (pCMTS). Underlay routing may then be configured between a plurality of remote physical layer (R-PHY) nodes and the cCMTS instance. Then a plurality of R-PHY node connections respectively corresponding to the plurality of R-PHY nodes may be switched from the pCMTS to the cCMTS instance.

Elastic capacity management with a cloud cable modem termination system (cCMTS)

Methods and apparatus are disclosed for offering broadcast IPTV solutions over cable (HFC networks). Rather than bypass the CMTS, a reduced number of downstream ports are utilized for video streams. Each input video stream is streamed to a multicast group address. In one embodiment, several RF channels are configured so that they are RF spanned across all the Fibernodes in the CMTS service area. In an embodiment, an STB sends a service request for a desired video stream using an IGMP request, and the CMTS responds by issuing a DBC request to tune the corresponding CM to the RF channel that is carrying the requested stream. Preferably, the CMTS ports that carry the static multicast streams are RF spanned across all the Fibernodes, or a selected subset.

Broadcast solution for cable IPTV

Growing community of inventors

Palo Alto, CA, United States of America

Tung-Fai Chan