[Nfd-dev] Multicast ad-hoc enable and broadcast storm

[Ashlesh Gawande (agawande)]

http://named-data.gitlab.io/TR-NDN-0021-NFD-dev-guide/

Please take a look at section 5.2. (Best route and multicast strategy)

Ashlesh

On Aug 15, 2017 8:44 AM, "Lan Wang (lanwang)" <lanwang at memphis.edu> wrote:
The documentation should be in the NFD developers’ guide.

Ashlesh: can you send the link to the latest guide and point out the specific section where you explain the mechanism?

Lan

On Aug 15, 2017, at 8:38 AM, Mahyuddin Husairi <mahyuddin at gmail.com<mailto:mahyuddin at gmail.com>> wrote:

Thanks for the clarification.
Will do some experiment to examine how good current interest suppression mechanism in nfd to avoid broadcast storm in wireless ad-hoc network. My initial experiment shows some promising result. The problem is there is lack of literature for me to cite something related to current interest suppression mechanism in nfd.

On 15 Aug 2017 21:04, "Lan Wang (lanwang)" <lanwang at memphis.edu<mailto:lanwang at memphis.edu>> wrote:
I’m not sure exactly what specific broadcast storm scenario you are referring to, but the exponential suppression implemented with the multicast strategy will make sure that an interest of the same name received from the same face won’t be forwarded within an initial window of 10ms.  If more of the same interests are received within the window then the suppression window will increase exponentially.  This behavior should prevent the wireless nodes from forwarding this interest repeatedly to each other (although it is probably not the original intention of this mechanism as it was designed before the ad hoc mode was added).

Lan

On Aug 14, 2017, at 5:23 PM, Mahyuddin Husairi <mahyuddin at gmail.com<mailto:mahyuddin at gmail.com>> wrote:

Thanks for a reply Prof. Lan.
What i understand from nfd dev guide and nfd source codes, interest suppression mechanism main function is to protect the network from interest DDOS attack. Does the interest suppression mechanism is good enough to prevent wireless network from broadcast storm (with multicast ad-hoc setup)?
Is there any technical report or literature that discuss about interest suppression algorithm implemented in nfd?

On Mon, Aug 14, 2017 at 11:43 PM, Lan Wang (lanwang) <lanwang at memphis.edu<mailto:lanwang at memphis.edu>> wrote:
The multicast strategy has an interest suppression mechanism https://redmine.named-data.net/issues/2062.

Lan

On Aug 14, 2017, at 4:20 AM, Mahyuddin Husairi <mahyuddin at gmail.com<mailto:mahyuddin at gmail.com>> wrote:

AFAIK, current NFD can allow multicast ad hoc through both udp and raw ethernet instead suppressed in forwarding pipeline like before. My concern is, is there any mechanism, probably in interest loop pipeline to avoid broadcast storm happen during multicast in ad-hoc WiFi mode?

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