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학술대회 Multicast Downstream Sharing Home Gateway using DBC-AD Message in DOCSIS 3.0-Based CATV Network
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이창효, 이은조, 박승권, 이호숙
International Conference on Network Infrastructure and Digital Content (IC-NIDC) 2009, pp.296-301
09MR4500, HFC 망에서의 IP기반 초고속 멀티미디어 전송기술 개발, 이수인
In this paper, we present a method to receive multicast packets forwarded to a fiber node through a HG (Home Gateway) that has an advanced CM (Cable Modem) in a DOCSIS 3.0-based CATV network. As the CATV network is in a tree-and-branch structure, in case of forwarding multicast packets to a CM, they are forwarded to all the other CMs in the same fiber node. However, as all the other CMs do not join a multicast session with the CMTS (Cable Modem Termination System), those multicast packets are discarded. Therefore, we present a new method to receive multicast packets that are forwarded in the same fiber node by using a newly proposed DBC-AD (Dynamic Bonding Change-Advertisement) message that the CMTS transmits to a HG. The proposed method in a DOCSIS 3.0-based CATV network provides the bandwidth saving, and multicast packets can be forwarded without network delay through a HG. ©2009 IEEE.
KSP 제안 키워드
Bandwidth saving, Branch structure, CATV network, Cable modem termination system, Home gateway, Multicast session, Network delay, dynamic bonding, new method