[ndnSIM] link failure
alexander.afanasyev at ucla.edu
Mon Apr 27 23:18:00 PDT 2015
> On Apr 28, 2015, at 3:37 AM, Trade <trade20122012 at gmail.com> wrote:
> Thanks for bringing good point. I did notice there are different ways for handling link failures.
> In NLSR implementation as well as published paper, they use taking one node down
> instead of link fails. But in Ndnsim, uses the link down but two nodes still can communicate
> with others.
Just to add one puzzle piece to the picture: NS-3 as of yet does not support concept of removing node from the simulation environment, nor remove/physically break any specific link. That is main reason why link failures in LinkHelper are implemented as adding 100% LossError model on the link.
> One more question, in ndnsim example, both bestroute and calculateallpossible route appear
> in the main file, then does it account for ?
Trade, I’m not sure I fully understand your question. Can you clarify what you mean?
> On 4/27/15 12:34 AM, Christian Kreuzberger wrote:
>> As far as I know, Link failures are, as per the name, LINK failures, and not
>> node failures.
>> This means that in theory two nodes can still communicate via alternate
>> However, this behaviour depends on the forwarding strategy you use. If you
>> are using ndnSIM 2.0 + NFD with BestRoute, you might not be able to
>> experience this behaviour, if you use Broadcast +
>> CalculateAllPossibleRoutes() you should see the behaviour.
>> For examples see
>>> -----Original Message-----
>>> From: ndnSIM [
>>> mailto:ndnsim-bounces at lists.cs.ucla.edu
>>> ] On Behalf Of
>>> Sent: Sunday, April 26, 2015 2:00 AM
>>> ndnsim at lists.cs.ucla.edu
>>> Subject: [ndnSIM] link failure
>>> Does link failure refer to only one node down or "the link down but two
>>> nodes still can transmit message to other neighbors"? Which one is the
>>> in ns3 or ndnsim?
>>> ndnSIM mailing list
>>> ndnSIM at lists.cs.ucla.edu
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