[ndnSIM] Mechanism to check neighbor (link) alive or not
Hitesh Wadekar
wadekahn at clarkson.EDU
Wed Mar 4 09:03:05 PST 2015
HI Prof. Wang,
Yes, it is "Hello" messages. It was typo ( NLSR sends "info" interest), I
apologies for it. I completely agree on it. Now I got to know NLSR failure
and detections. Yes, It will help to trigger routing calculation faster,
Thank you for clarifying :)
Regards,
Hitesh
On Wed, Mar 4, 2015 at 11:37 AM, Lan Wang (lanwang) <lanwang at memphis.edu>
wrote:
> Are you talking about the Hello messages (we call it INFO message in the
> paper)? This is something NLSR sends, since it's used to detect whether
> NLSR is alive or not. So you can't use something else to replace it. For
> example, if there's link layer mechanism to detect link failures, that will
> help trigger routing calculations faster in this case. But the link layer
> failure detection is not going to detect NLSR failure.
>
> That said, NLSR does receive notifications from the local NFD when a
> face goes down or up.
>
> Lan
>
> On Mar 4, 2015, at 10:17 AM, Hitesh Wadekar <wadekahn at clarkson.EDU>
> wrote:
>
> Hey Guys,
>
> I just gone through NLSR paper, where they have mentioned that they are
> sending status (echo) messages to neighbor to check whether its alive or
> not (basically for tracking) which is a kind pf ping utility.
>
> I wonder is there any other mechanism in NDN protocol stack that we can
> check or verify weather connected link or neighbor node is reachable or
> alive or not?
>
> Thank you guys.
>
> Cheer,
> Hitesh
>
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