[Ndn-interest] Forwarding interest to different faces

Junxiao Shi shijunxiao at email.arizona.edu
Sun Jul 9 20:25:52 PDT 2017

Hi Mohammad

Yes, a router is free to choose whatever path it thinks can reach the Data.
Forwarding strategy is the component that makes this decision.
However, if the Data has been retrieved from face1 and is still present in
the local cache, the router would return the cached Data when the same
Interest arrives the second time, instead of forwarding the Interest again
to face2.

Yours, Junxiao

On Sun, Jul 9, 2017 at 6:58 PM, Mohammad Alhowaidi <malhowaidi at gmail.com>

> Hello,
> If I have an interest with prefix /ndn/a/b and it reach a router which has
> multiple entry to forward it for example the FIB look like
> /ndn/a/b , face1
> /ndn/a/b , face 2
> Can the router choose to forward the interest to face 1 in the first time,
> and if it receive the same interest again, then it will be forwarded into
> face2? so the interest will follow different path from time to time.
> Thanks,
> Mohammad
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