[Roll] Path Control Bits handling issue in 6550

"Pascal Thubert (pthubert)" <pthubert@cisco.com> Mon, 14 September 2020 11:32 UTC

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From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
Thread-Topic: Path Control Bits handling issue in 6550
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Date: Mon, 14 Sep 2020 11:32:31 +0000
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Subject: [Roll] Path Control Bits handling issue in 6550
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Hello Rahul

Yes, I believe that the points in observations need to be addressed.
I started this for the Path Control Bits handling issue in 6550.

Take care,

Pascal

From: Roll <roll-bounces@ietf.org> On Behalf Of Rahul Jadhav
Sent: lundi 14 septembre 2020 12:38
To: Routing Over Low power and Lossy networks <roll@ietf.org>
Subject: Re: [Roll] roll WG Virtual Meeting: 2020-09-30 - Call for Agenda Items-

Will now be the right time to check consensus with the WG on what behaviour may have to be mandated as part of RPLv2?

Following are some of the points which immediately comes to my mind:

1. Use of revised Option Type (0x23) in RPI ... (Obsolete use of 0x63 RPI Option Type value).
2. Mandating the use of 6LoRH (RFC 8138) ... (Allows compression of SRH (non-storing) and RPI (storing mode)). This is something that was discussed in context to turnon-8138 T-bit draft recently.
3. Use of MOPex (This is how we know the instance is RPLv2)
4. Support for Ext Control Options. (Allows Backward compatibility for new extns... part for same mopex draft)
5. Support for Capabilities. (Enables backward compatibility, allows incremental feature support)

There are some points from RPL Observations draft [2] which could be clarified as part of this work item. Not sure if those points could go in as part of this draft? For e.g., Path Control Bits handling issue in 6550 [1] ... 2) Mandating handling (not sending) of multiple targets in DAO [3]

WG could provide feedback on the following aspects:
1. Do you feel one of the points above need not be mandated?
2. Do you feel there is some other point which needs to be addressed?

[1] https://tools.ietf.org/html/draft-ietf-roll-rpl-observations-04#section-10
[2] RPL Observations: https://tools.ietf.org/html/draft-ietf-roll-rpl-observations-04
[3] https://tools.ietf.org/html/draft-ietf-roll-rpl-observations-04#section-7