[Ndn-interest] Fw: Periodic sync interest

Muktadir R Chowdhury (mrchwdhr) mrchwdhr at memphis.edu
Tue Sep 6 11:46:00 PDT 2016

Yes It will be propagated the same way.

After A's neighbors update their LSA's as per A's, they will update their sync digest and respond to their neighbors' sync interest with the updated digest. Now A's neighbor's neighbors know there is a change in the LSDB and they will express interest to fetch the update. This way the change will be propagated throughout the network.


Begin forwarded message:

From: Tanusree Chatterjee <tnsr.chatterjee at gmail.com<mailto:tnsr.chatterjee at gmail.com>>
Subject: Re: [Ndn-interest] Periodic sync interest
Date: September 4, 2016 at 9:29:49 AM CDT
To: "Lan Wang (lanwang)" <lanwang at memphis.edu<mailto:lanwang at memphis.edu>>
Cc: ndn-interest at lists.cs.ucla.edu<mailto:ndn-interest at lists.cs.ucla.edu>

Can you tell me whenever there is a change in LSA of a node A, it is updated in the neighbors of that node easily as there is periodic sync interest exchanged among the neighbors. Then how this change will be propagated to the neighbors of neighbors of A? In the same way i.e. the neighbors of A replies to the sync interest from its neighbors with the change?

Thank you for your attention.

Tanusree Chatterjee

On Aug 11, 2016 6:25 PM, "Lan Wang (lanwang)" <lanwang at memphis.edu<mailto:lanwang at memphis.edu>> wrote:

On Aug 10, 2016, at 1:18 PM, Tanusree Chatterjee <tnsr.chatterjee at gmail.com<mailto:tnsr.chatterjee at gmail.com>> wrote:


Can anyone please tell me whether each router sends the periodic sync interests to all other routers in the network or only its direct neighbors? Is it a hop by hop notification when there is any updates? Or the node where the update occurred, floods the update to all other nodes in a data packet?

The sync interests are sent using a multicast strategy, but they should be aggregated when every node has the same sync digest (thus same interest).  So when the network is stable, only one sync interest is sent per link per direction.

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Posted by: "Lan Wang (lanwang)" <lanwang at memphis.edu>
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