Re: [Roll] How to react if Trickle Interval

Re: [Roll] How to react if Trickle Interval > Default Lifetime

Michael Richardson <mcr+ietf@sandelman.ca> Fri, 06 May 2016 13:41 UTC

From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
In-Reply-To: <F678C25E-2780-4561-A364-87869CEE24C1@sics.se>
References: <2591c152-29fd-ce24-d4c2-27fc23a9a034@gmail.com> <CAMxvJt+FnZQOtv2yFE7t6s-e97DirGHVHCbLGz2U-CJnHC8cBQ@mail.gmail.com> <f2ed4c67-66f6-d70e-24c1-a820e9fd690b@gmail.com> <F678C25E-2780-4561-A364-87869CEE24C1@sics.se>
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Date: Fri, 06 May 2016 09:40:56 -0400
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Archived-At: <http://mailarchive.ietf.org/arch/msg/roll/7z70hBFL2ndYoWBCFk49ZTCPEzg>
Subject: Re: [Roll] How to react if Trickle Interval > Default Lifetime
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Reply-To: Routing Over Low power and Lossy networks <roll@ietf.org>

Joakim Eriksson <joakime@sics.se> wrote:
    > Typically the RPL parent will get lots of data from the children which
    > will
    > cause the link-metric to change
    > so it is not always the case that a defunct parent (at least not any of
    > the
    > actively used ones) will be just

In many networks (metering for instance),  there can be very little traffic
for hours at a time, then a dozen packets down that part of the tree a few
times a day.

One answer that I like though: if there is no traffic, then it doesn't matter
if the routes are good or not.  The question is, when traffic does show up,
can we handle it in a timely fashion.

    > Yes, a regular unicast DIS is a good way to keep both link metrics and
    > other important liveliness
    > information up to date.

There is a document on unicast DIS.  Does it provide useful advice to you?

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-

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[Roll] How to react if Trickle Interval > Default… Cenk Gündogan
Re: [Roll] How to react if Trickle Interval > Def… Simon Duquennoy
Re: [Roll] How to react if Trickle Interval > Def… Joakim Eriksson
Re: [Roll] How to react if Trickle Interval > Def… Cenk Gündogan
Re: [Roll] How to react if Trickle Interval > Def… Joakim Eriksson
Re: [Roll] How to react if Trickle Interval > Def… Michael Richardson

Re: [Roll] How to react if Trickle Interval > Default Lifetime

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