So there are no known interop issues with non-RPL minimal deployments if 
different vendors choose their own EB policies?

Thx,
R.


________________________________
From: Xavi Vilajosana Guillen <[email protected]>
Sent: Monday, July 2, 2018 9:01:23 AM
To: Turner, Randy
Cc: tisch
Subject: Re: [6tisch] 6TiSCH Minimal Spec

Hi Randy,

thanks for your comment! When RPL is used, the EBs use the Dagrank(rank) as 
join metric. In this way we match the routing topology with the timing 
topology. When RPL is not used, there is no such need as the join metric is 
only based in a depth counter. When a node has not acquired a rank, it may have 
a default value for it. If the node uses that default value to send EBs may 
cause some incosistencies in the time source structure. This is the reason for 
such an indication.

When a node is not using RPL, minimal does not mandate any particular 
behaviour, the node may have joined the network and can use EBs according to 
the particular network configuration (period, etc..).

regards
Xavi








Missatge de Turner, Randy 
<[email protected]<mailto:[email protected]>> del dia dg., 1 
de jul. 2018 a les 21:55:

Hi Guys,

In RFC 8180, section 6.3 “When to start sending EBs”, there is guidance about 
when a node using RPL should start sending EBs.

Should there be a prescribed “When to start sending EBs” language if a node is 
NOT running RPL ? (just to avoid an invalid assumption) Or is this in another 
section, and if so, shouldn’t this text live in this section?

Thanks!
Randy
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Dr. Xavier Vilajosana
Wireless Networks Lab
Internet Interdisciplinary Institute (IN3)
Professor
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http://wine.rdi.uoc.edu

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