[Nfd-dev] [Ndn-interest] UDP_retransmissiom

[Eric Newberry]

Apologies, I somehow missed the previous email. We just merged an NFD
config file option that, when set to "yes", will enable congestion
detection and marking globally on all supported transport types (UDP, TCP,
and Unix stream socket). It is known as
"face_system.general.enable_congestion_marking". A management option and
nfdc parameter to allow it to be enabled or disabled on a face-by-face
basis is in the works.

Eric


On Jan 22, 2018 4:32 AM, "Burke, Jeff" <jburke at remap.ucla.edu> wrote:

please



*From: *Nfd-dev <nfd-dev-bounces at lists.cs.ucla.edu> on behalf of Lixia
Zhang <lixia at cs.ucla.edu>
*Date: *Thursday, January 4, 2018 at 7:51 PM
*To: *Eric Newberry <enewberry at email.arizona.edu>
*Cc: *"nfd-dev at lists.cs.ucla.edu" <nfd-dev at lists.cs.ucla.edu>
*Subject: *Re: [Nfd-dev] [Ndn-interest] UDP_retransmissiom





On Jan 4, 2018, at 11:18 AM, Eric Newberry <enewberry at email.arizona.edu>
wrote:



Hi Giuseppe,

By default, the number of retransmissions is set to 3. The option
controlling this is in LpReliability::Options as maxRetx. However,
currently there is no way to set this option using nfdc or any other
management tool. Therefore, if you want to change this, you would need to
modify the NFD source code, recompile, and reinstall. There are no options
relating to the reliability system in nfd.conf.

Eric

should we consider adding a way to config this parameter?





On 01/04/2018 02:10 AM, Giuseppe Carella wrote:

Good morning Eric,



Thank you for your answer.

I understood that it's possible to implement the retransmission by means of
NDNLPv2, which is a protocol located upon the transport layer.

So I have to set a maximum number of retransmissions, that's all (I hope).

Is it enough modifying some properties into nfd.conf to choose the maximum
number of retransmissions or I have to add some new APIs into applicative
layer?

Thank you.

Giuseppe.



2018-01-04 9:31 GMT+01:00 Eric Newberry <enewberry at email.arizona.edu>:

Giuseppe,

NFD release 0.6.0 implements a link-layer reliability system as part of
NDNLPv2 for unicast TCP, UDP, and Ethernet faces. It can be enabled by
specifying "reliability on" when creating (or updating) a face with nfdc.
In order for the system to function, it must be enabled on both ends of the
link. The above command only enables it on one end.

Eric



On 01/04/2018 01:24 AM, Giuseppe Carella wrote:

Good morning community,

is it possible to configure NFD in order to allow an UDP communication with
retransmission?

I know that I could use TCP, but for my purpose it's necessary having UDP
with retransmission.



Thank you.

Giuseppe.



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