[Nfd-dev] Ethernet unicast faces

Wed Aug 2 08:37:34 PDT 2017

Hello everybody,

Awaiting unicast-Ethernet encapsulation, we are currently using UDP+IP encapsulation to achieve our functionality. However, we are facing some issues that with IP fragmentation the probability of packet loss increases greatly, while retransmission of missing fragments is absent.  We understand NDNLPv2 will have a retransmission-strategy for missing fragments of a segment larger than the MTU. Will this already be implemented in the unicast interface implementation you are currently working on?

Please let us know if we can help evaluate a prototype, we are eager to work with NDN as the only network-layer forwarding protocol.

Best regards,
Niels van Adrichem

From: Alex Afanasyev [mailto:aa at cs.ucla.edu]
Sent: maandag 27 maart 2017 15:47
To: D'Acunto, L. (Lucia) <lucia.dacunto at tno.nl>
Cc: Lixia Zhang <lixia at cs.ucla.edu>; nfd-dev at lists.cs.ucla.edu; Davide Pesavento <davide.pesavento at lip6.fr>; Adrichem, N.L.M. (Niels) van <niels.vanadrichem at tno.nl>; Eric Newberry <enewberry at email.arizona.edu>; Teng Liang <philoliang2011 at gmail.com>
Subject: Re: [Nfd-dev] Ethernet unicast faces

Davide, Eric, Tang, Junxiao, and I are in charge of this and we will try to finalize the implementation quick.

---
Alex

On Mar 27, 2017, at 8:20 AM, D'Acunto, L. (Lucia) <lucia.dacunto at tno.nl<mailto:lucia.dacunto at tno.nl>> wrote:

Hi Lixia,
This is very good news!
It would be great if you could give us the contact details of the person in charge of this project.

Thanks, and best regards,
Lucia

From: Lixia Zhang [mailto:lixia at cs.ucla.edu]
Sent: maandag 27 maart 2017 13:41
To: Adrichem, N.L.M. (Niels) van
Cc: D'Acunto, L. (Lucia); nfd-dev at lists.cs.ucla.edu<mailto:nfd-dev at lists.cs.ucla.edu>; Alex Afanasyev; Davide Pesavento
Subject: Re: [Nfd-dev] Ethernet unicast faces

unicast Ethernet was one of the hackathon projects over the weekend.
my understanding is that the code should be available real soon.

On Mar 27, 2017, at 1:07 AM, Adrichem, N.L.M. (Niels) van <niels.vanadrichem at tno.nl<mailto:niels.vanadrichem at tno.nl>> wrote:

Hello everybody,

As a work-around we will now use IP or UDP/IP encapsulation, but ultimately we would like to use only L2-/Ethernet-encapsulation to show that these types of L3-forwarding functions can be handled using just NDN.
I understand from the documentation that Ethernet multicast functionality is achieved through a PCAP filter on the multicast Ethernet address without setting the interface in promiscuous mode, suggesting a similar approach can be achieved through a PCAP filter on an interface’s own unicast Ethernet address without setting the interface in promiscuous mode.

Best,
Niels

From: D'Acunto, L. (Lucia)
Sent: vrijdag 24 maart 2017 17:49
To: nfd-dev at lists.cs.ucla.edu<mailto:nfd-dev at lists.cs.ucla.edu>; Alex Afanasyev <aa at CS.UCLA.EDU<mailto:aa at CS.UCLA.EDU>>; Davide Pesavento <davide.pesavento at lip6.fr<mailto:davide.pesavento at lip6.fr>>
Cc: Adrichem, N.L.M. (Niels) van <niels.vanadrichem at tno.nl<mailto:niels.vanadrichem at tno.nl>>
Subject: Ethernet unicast faces

Hi Alex, Davide, all,
I have a question about Ethernet unicast faces in NDN for usage in Wifi ad-hoc.
Do you have plans to re-implement Ethernet Unicast faces? we just discovered that was removed and NFD only offers Ethernet Multicast faces for now. For our ICN-IoT with WiFi Ad-hoc project this is a bit of a problem, since we want to retransmit on the same WiFi interface (which again is disabled in the dissemination strategy for Ethernet Multicast faces), and want to use the source and destination MAC address to respectively indicate who should be the next hop to retransmit the Data object and Interest.

We would appreciate your help (or work arounds) with this retransmission problem.

Thanks!
Lucia

Lucia D'Acunto, PhD
Research Scientist
Media Networking

T +31 (0)88 866 71 37
M +31 (0)64 696 60 10
E lucia.dacunto at tno.nl<mailto:lucia.dacunto at tno.nl>

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