+1
Just one comment. Since CLEAR may be useful to several SFs which may be
active, in future,
perhaps a generic or a wildcard CLEAR message that can address
potentially multiple SF
listeners can help in avoiding separate messages going from individual SFs.
Anand
On Tuesday 22 November 2016 12:46 PM, Thomas Watteyne wrote:
In thread "Node Behavior at Boot in SF0" (https://www.ietf.org/mail-archive/web/6tisch/current/msg04883.html), we ended up discussing the following paragraph > >
https://tools.ietf.org/html/draft-ietf-6tisch-6top-sf0-02#section-10: >
> In order to define a known state after the node is restarted, a
CLEAR > command is issued to each of the neighbor nodes to enable a
new > allocation process. The 6P Initial Timeout Value provided by
SF0 > should allow for the maximum number of TSCH link-layer retries,
as > defined by Section 4.3.4 of [I-D.ietf-6tisch-6top-protocol].
TODO/ > REMARK: The initial timeout is currently under discussion. >
> The suggestion on the table is to: > > step 1. Change
https://tools.ietf.org/html/draft-ietf-6tisch-6top-sf0-02#section-10 to:
> > The 6P Initial Timeout Value provided by SF0 > should allow
for the maximum number of TSCH link-layer retries, as > defined by
Section 4.3.4 of [I-D.ietf-6tisch-6top-protocol]. TODO/ > REMARK:
The initial timeout is currently under discussion. > > step 2. Add the
following text to draft-ietf-6tisch-6top-protocol, by possibly adding a
4.3.X section: > > 4.3.X. Disconnecting from a neighbor > > If the SF
realizes connection to a particular neighbor is no longer > needed
(for example a change in parent by the routing protocol), > the SF
MAY send a CLEAR request to that neighbor to speed up the > cleanup
process of the cells allocated with that neighbor. > > I'm hereby
opening a call for WG consensus. Please +1 or comment/suggest. The
chairs will summarize on Fridat 25 Nov. > > Thomas > > -- >
_______________________________________ > > Thomas Watteyne, PhD >
Research Scientist & Innovator, Inria > Sr Networking Design Eng, Linear
Tech > Founder & co-lead, UC Berkeley OpenWSN > Co-chair, IETF 6TiSCH >
> www.thomaswatteyne.com > _______________________________________ > >
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