[ndnSIM] Link failure among contents routers

Junxiao Shi shijunxiao at email.arizona.edu
Tue Sep 27 20:38:21 PDT 2016

Hi Haruka

1) NFD has "link DOWN" semantics, but there's no corresponding
implementation. The upcoming ndnSIM 2.2 release doesn't seem to have a
"link DOWN" implementation in the simulation face type.
2) You may look at "last refreshed" timestamp on PIT in-records and
out-records. These are the time point on which an incoming Interest is
received from a face or an outgoing Interest is sent to a face.

Yours, Junxiao

On Tue, Sep 27, 2016 at 7:30 PM, わたのはるか <q304043ud at gmail.com> wrote:

> Dear All,
> Currently, I am working on how to cope with the link failure
> among contents routers on NDN.
> Please give us the information about followings:
> 1) Can I detect the link failure at NDN node (forwarder.cpp
>     or others) on ndnsim?
> 2) How can I get the elapsed time of each entry on PIT from the
> registration?
> Best Regards,
> Haruka
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> ndnSIM at lists.cs.ucla.edu
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