A Fast Packet Loss Detection Mechanism for Content-Centric Networking


IEICE TRANSACTIONS on Communications   Vol.E102-B   No.9   pp.1842-1852
Publication Date: 2019/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2018EIT0001
Type of Manuscript: Special Section PAPER (Special Section on Enhancing Information Centric Networking Technologies Towards Real-world Infrastructure)
CCN (content-centric networking),  interest acknowledgement (ACK),  transport protocol,  packet loss detection,  

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In this paper, we propose a packet loss detection mechanism called Interest ACKnowledgement (ACK). Interest ACK provides information on the history of successful Interest packet receptions at a repository (i.e., content provider); this information is conveyed to the corresponding entity (i.e., content consumer) via the header of Data packets. Interest ACKs enable the entity to quickly and accurately detect Interest and Data packet losses in the network. We conduct simulations to investigate the effectiveness of Interest ACKs under several scenarios. Our results show that Interest ACKs are effective for improving the adaptability and stability of CCN with window-based flow control and that packet losses at the repository can be reduced by 10%-20%. Moreover, by extending Interest ACK, we propose a lossy link detection mechanism called LLD-IA (Lossy Link Detection with Interest ACKs), which is a mechanism for an entity to estimate the link where the packet was discarded in a network. Also, we show that LLD-IA can effectively detect links where packets were discarded under moderate packet loss ratios through simulation.