Hi all, As discussed during IETF 103, here is a list of proposed changes for minimal-security-09 that we will use for the second WGLC:
- Add "join rate" parameter in the Configuration structure present in Join Responses and Parameter Update requests: As discussed during IETF 103, allowing the JRC to dynamically set the join rate at each individual JP in the network may prove useful in order to 1) speed up the network formation by allocating all the available bandwidth to join; 2) throttling join traffic sent by JPs in case of an attack; 3) switching off the join process; 4) enabling/disabling a given node to act as a JP. The value of this parameter will be used to set CoAP's congestion control mechanism at the JP. As discussed, the text should not prevent the JP to use another mechanism, e.g. https://tools.ietf.org/html/draft-ji-roll-traffic-aware-objective-function-03, and locally decide on a value that it should use, but in case this parameter is received in the Configuration object, the value set by the JRC MUST take precedence. Is this fine? - Remove "network identifier" from the Configuration structure present in Join Response and Parameter Update requests: During IETF 102, we agreed on not managing all of the 6LBR parameters with CoJP protocol, so this parameter when present in a Join Response is a remnant. It used to be there to allow the JRC to signal to the 6LBR which network identifier (i.e. PAN ID) to use to advertise the network. With this parameter removed from Configuration object, there is an expectation that the JRC and 6LBR exchange this and other necessary parameters (timeslot duration, template, slotframe length, etc) through another protocol. The proposed text is at: https://bitbucket.org/6tisch/draft-ietf-6tisch-minimal-security/commits/b43a8139052a444e886b3b5a915bc0d545267340?at=minimal-security-09 - Clarification text on handling JRC failures and significant OSCORE sequence number mismatch, aligning it better with OSCORE. The proposed text is at: https://bitbucket.org/6tisch/draft-ietf-6tisch-minimal-security/commits/e942995f70b3ded33d9ce5307817ce4a9298b5fe?at=minimal-security-09 If you have any suggestions/recommendations/concerns, please raise them at the latest a week from now. Mališa
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