[tsvwg] Call for feedback after IETF-113: Should draft-ietf-tsvwg-dtls-over-sctp-bis obsolete RFC 6083?

[Gorry Fairhurst <[e-mail]>]

The TSVWG meeting session at IETF-113 discussed whether we should make a 
change to the currently adopted work item on DTLS for SCTP so that it 
will not update RFC 6083. We now need to confirm what would be 
acceptable by this WG.

The meeting noted that this will result in two alternative DTLS Specs 
for SCTP. The IETF will need to do security maintenance of any 
security-related IETF protocol, which implies that if RFC 6093 remains 
active, it will, itself, need to be updated at some point in the future.

This email is to seek an acceptable plan to take this forward, 
suggestions are:

(a) Continue with the current plan that DOES replace RFC 6083 with 
draft-ietf-tsvwg-dtls-over-sctp-bis. 
<https://datatracker.ietf.org/doc/html/draft-ietf-tsvwg-dtls-over-sctp-bis> 
Open source has been important in the past, and some thought that the 
associated IPR would likely not result in an open source replacement.

(b) Modify the work item to publish draft-ietf-tsvwg-dtls-over-sctp-bis 
<https://datatracker.ietf.org/doc/html/draft-ietf-tsvwg-dtls-over-sctp-bis> 
as a PS that does NOT obsolete RFC 6083. This would postpone any 
decision about whether to obsolete RFC 6083 and allows a different 
update for RFC6083. This also requires that 
draft-ietf-tsvwg-dtls-over-sctp-bis 
<https://datatracker.ietf.org/doc/html/draft-ietf-tsvwg-dtls-over-sctp-bis> 
includes consideration of how the two altenative specs can co-exist.

(c) A different proposal - presently the chairs are not aware of other 
proposals from those who implement and use SCTP.

Please send thoughts or isssues in an email to the TSVWG list to help 
the chairs decide on this topic by 6th May 2022.

Best wishes,

Gorry

TSVWG Co-Chair.