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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=FR>Thank you from your reply and explanation.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:daveoran@orandom.net">David Oran</a><br><b>Sent: </b>Wednesday, April 26, 2017 2:52 AM<br><b>To: </b><a href="mailto:n.boubakr@bit.edu.cn">n.boubakr@bit.edu.cn</a><br><b>Cc: </b><a href="mailto:ndn-interest@lists.cs.ucla.edu">ndn-interest@lists.cs.ucla.edu</a><br><b>Subject: </b>Re: [Ndn-interest] NDN Load Balancing and Alternative Path</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>On 24 Apr 2017, at 19:49, n.boubakr@bit.edu.cn wrote:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>> Hello,</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> Starting from the point that the Data packet is routed back to </p><p class=MsoNormal>> consumer using the reverse path of Interest. How can we achieve a load </p><p class=MsoNormal>> balancing in Data delivery, and how can we migrate from a link to </p><p class=MsoNormal>> another link in case of link failure.</p><p class=MsoNormal>> Another question, most of efforts in NDN congestion control propose </p><p class=MsoNormal>> using alternative path, how can we use an alternative path and NDN </p><p class=MsoNormal>> forwarding engine uses the PIT table to deliver data.</p><p class=MsoNormal>> The idea of alternative path and load balancing is valid only in </p><p class=MsoNormal>> Interest path and can not be realized in Data path.</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>That’s correct and a major feature of the architecture. The way to get </p><p class=MsoNormal>path diversity and adaptive congestion control is to control the </p><p class=MsoNormal>propagation of interests in order to control resource allocation for the </p><p class=MsoNormal>reverse path the data messages traverse. For an example of a recent </p><p class=MsoNormal>multi-path, multi-destination ICN Congestion control algorithm, check </p><p class=MsoNormal>out:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>http://conferences2.sigcomm.org/acm-icn/2016/proceedings/p1-mahdian.pdf</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Recovery from link failure is accomplished by retransmission of </p><p class=MsoNormal>Interests, either in-network or by the consumer. ICN pays a lower cost </p><p class=MsoNormal>for retransmission than end-to-end IP designs, because it supports </p><p class=MsoNormal>short-term caching of data on the part of the path shared by the </p><p class=MsoNormal>operating and failed links/nodes.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>> Boubakr Nour (Ph.D Candidate)</p><p class=MsoNormal>> Beijing Institute of Technology (<span lang=ZH-CN style='font-family:DengXian'>北京理工大学</span>)</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>> _______________________________________________</p><p class=MsoNormal>> Ndn-interest mailing list</p><p class=MsoNormal>> Ndn-interest@lists.cs.ucla.edu</p><p class=MsoNormal>> http://www.lists.cs.ucla.edu/mailman/listinfo/ndn-interest</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>David R. Oran</p><p class=MsoNormal>Network Systems Research & Design</p><p class=MsoNormal>4 Shady Hill Square</p><p class=MsoNormal>Cambridge, MA 02138 USA</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>