[ndnSIM] interest=/localhost/nfd/faces/events/%FE%05 ?

Carl Zu carlzu8 at gmail.com
Tue Feb 23 21:54:27 PST 2016

Hi Alex,

Thanks for your reply. These notification streams are not only for new
faces. They are for strategy choice, and in particular for FIB population
(add-nexthop). The important question is that what shall I do if I like to
implement my own FIB population method ?

Minor questions (logs are for ndn-simple.cpp):
1. Why these notification streams start from node "-1" (I believe it should
not be a node), and then they continue for real nodes. See here:

0s -1 nfd.Forwarder:onDataUnsolicited(): [DEBUG] onDataUnsolicited face=1

2. Notification streams not only contain interests and data, but they
contain "matching" as well (for add-nexthop and enable-local-control). What
is that ?. See here:

0s 1 nfd.Forwarder:onIncomingData(): [DEBUG] onIncomingData


0s 1 nfd.Forwarder:onIncomingData(): [DEBUG] onIncomingData

3. even if googled and read, have not understood well
"enable-local-control". Small explanation would be appreciated.

Thanks very much,

On Tue, Feb 23, 2016 at 7:25 PM, Alex Afanasyev <aa at cs.ucla.edu> wrote:

> On Feb 23, 2016, at 6:29 AM, Carl Zu <carlzu8 at gmail.com> wrote:
> Hi !
> there are some interests that come in between ordinary interests. For
> example, look at the two types of interest messages in the following logs.
> Type 1 is clearly an interest sent for retrieving a content object with a
> certain prefix. What is interest type 2 ?
> *Type1: *
> 2s 0 nfd.Forwarder:onOutgoingInterest(): [DEBUG] onOutgoingInterest
> face=256 interest=/prefix/%FE%00
> *Type2*:
> 2s 0 nfd.Forwarder:onIncomingInterest(): [DEBUG] onIncomingInterest
> face=257 interest=/localhost/nfd/faces/events/%FE%05
> Hi Carl,
> When NFD detects there is a new face (e.g., new application), it notifies
> its internal module and any other interested applications about the fact.
> You can learn more about this here:
> http://redmine.named-data.net/projects/nfd/wiki/Notification
> Does this mechanism affect your simulations?
> ---
> Alex
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