Hi, Brian, On 5/23/2017 1:53 PM, Brian E Carpenter wrote: >> * There is no versioning support in GRASP. Why are we still developing >> protocols that do not have versioning support in it? > Because the protocol is indefinitely extensible by adding message types > and options. We really don't see any need for a version number. The > M_INVALID message was added so Version support is recommended by IANA (see RFC7506, Sec 7.5).
Extensibility is a separate issue and doesn't replace the benefit of version support. The goal is to avoid needing to assign a new port number for GRASPv2 in the future. IMO, all messages (including NOOP) should start with a version number, and I'd suggest at least 2 bits (if not 4). Joe
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