[Ndn-interest] NFD-forwarding strategy retry

[Lixia Zhang]

> On Sep 28, 2018, at 9:22 PM, Shanshan <shishanshan at cstnet.cn> wrote:
> 
> Hi Teng,
> 
> 1)Why resend an Interest to the same outgoing face:
> 
> When a producer (single-homed) connects to (via one hop) an over a wireless channel, packets (Interest, Data, Nack) may get lost due to poor wireless link. I want to design a new forwarding strategy for the edge router/BS/AP for reliable communication at NDN fw layer rather than at link layer.
> 
given we are doing research here: could you elaborate the advantages from your planned approach over the current link layer reliability enhancement?

for point-point channels, the NDN-LP based solution seems working well, although this solution (so far) does not apply to multi-access channels. 
> In such case, the FIB entry only has one outgoing face.
> 
it is unclear to me why the FIB entry can only has one outgoing face (or this is just your assumption)
> 2)and when:
> 
> In the above scenario, I want to design a new forwarding strategy for the edge router/BS/AP by setting a new timer (retransmission timer) for each PIT entry, and the retransmission timer is estimated by the RTT between each Interest and the corresponding Data belonging to the same flow. When the timer expires, the forwarding strategy retries this Interest to the same outgoing face. 
> 
> I also configure the Access Router Strategy and the ASF Strategy for the edge router/BS/AP in ndnSIM2.6, but neither implements Interest retransmission generated by the local node.
> 
it does not seem hard to add such code into ndnSIM to try it out
> -----Original Messages-----
> From:"Teng Liang" <philoliang at email.arizona.edu>
> Sent Time:2018-09-29 02:57:53 (Saturday)
> To: Shanshan <shishanshan at cstnet.cn>, ndn-interest at lists.cs.ucla.edu
> Cc: 
> Subject: Re: [Ndn-interest] NFD-forwarding strategy retry
> 
> Hi Shanshan,
> 
> Can you be more specific on the why and when you want to resend an Interest to the same outgoing face?
> 
> Teng
> 
> On 9/26/18 12:05 AM, Shanshan wrote:
>> hi,community
>> 
>> I read the latest version of the nfd-developer-guide and I am not sure if it is allowed to retry the same Interest (generated by the local node rather than the consumer) via the same outgoing face. 
>> 
>> Thank you!
>> 
>> Best,
>> Shanshan.
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Ndn-interest mailing list
>> Ndn-interest at lists.cs.ucla.edu <mailto:Ndn-interest at lists.cs.ucla.edu>
>> http://www.lists.cs.ucla.edu/mailman/listinfo/ndn-interest <http://www.lists.cs.ucla.edu/mailman/listinfo/ndn-interest>
> 
> 
> _______________________________________________
> Ndn-interest mailing list
> Ndn-interest at lists.cs.ucla.edu
> http://www.lists.cs.ucla.edu/mailman/listinfo/ndn-interest

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/ndn-interest/attachments/20180929/a7487ccc/attachment.html>