On 30/03/2017 15:59, Leddy, John wrote:
...
If this insert/delete of an SRH is prematurely prohibited; What is a
recommended solution to the Real World problem above. Not use case, we are
implementing.
Again; I’m worried we are eliminating a tool that may prove very helpful,
preclude its use in future IETF work and shutdown a path for Innovation in
Networking,
I've tried to say this before but I'm not sure people are getting it:
RFC2460bis, if approved as is, draws a line in the sand *for interoperability
across the whole Internet*. There are reasons for this - PMTUD in any form, any
future replacement for the unsuccessful IPsec/AH, and all the problems of
deploying extension headers that are understood by some nodes and not by
others.
There is no reason why a subsequent standards-track document cannot allow
header insertion (and removal) within finite domains where the above issues do
not apply. In fact, an improved version of
draft-voyer-6man-extension-header-insertion-00 could become exactly that.
There doesn't need to be a tussle here.
Brian Carpenter