[Ndn-interest] NDN Load Balancing and Alternative Path
n.boubakr at bit.edu.cn
n.boubakr at bit.edu.cn
Wed Apr 26 01:14:31 PDT 2017
Thank you from your reply and explanation.
From: David Oran
Sent: Wednesday, April 26, 2017 2:52 AM
To: n.boubakr at bit.edu.cn
Cc: ndn-interest at lists.cs.ucla.edu
Subject: Re: [Ndn-interest] NDN Load Balancing and Alternative Path
On 24 Apr 2017, at 19:49, n.boubakr at bit.edu.cn wrote:
> Hello,
>
> Starting from the point that the Data packet is routed back to
> consumer using the reverse path of Interest. How can we achieve a load
> balancing in Data delivery, and how can we migrate from a link to
> another link in case of link failure.
> Another question, most of efforts in NDN congestion control propose
> using alternative path, how can we use an alternative path and NDN
> forwarding engine uses the PIT table to deliver data.
> The idea of alternative path and load balancing is valid only in
> Interest path and can not be realized in Data path.
>
That’s correct and a major feature of the architecture. The way to get
path diversity and adaptive congestion control is to control the
propagation of interests in order to control resource allocation for the
reverse path the data messages traverse. For an example of a recent
multi-path, multi-destination ICN Congestion control algorithm, check
out:
http://conferences2.sigcomm.org/acm-icn/2016/proceedings/p1-mahdian.pdf
Recovery from link failure is accomplished by retransmission of
Interests, either in-network or by the consumer. ICN pays a lower cost
for retransmission than end-to-end IP designs, because it supports
short-term caching of data on the part of the path shared by the
operating and failed links/nodes.
> Boubakr Nour (Ph.D Candidate)
> Beijing Institute of Technology (北京理工大学)
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David R. Oran
Network Systems Research & Design
4 Shady Hill Square
Cambridge, MA 02138 USA
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