Re: Limited Domains:

[Nick Hilliard <[e-mail]>]

Toerless Eckert wrote on 14/04/2021 23:01:
> Which IMHO does not exclude the option to design such a protocol for
> limited domain in a way that it also supports "non-limited domains".

we already have this with MPLS, but it was designed from the outset as a 
limited domain protocol and was only later extended to interoperate 
outside the domain boundary, and only then in specific and carefully 
controlled circumstances.

Re-scoping an existing inter-domain protocol like ipv6 into a limited 
domain situation is a fundamentally different proposition.  Unless the 
scoping can be managed on a mandatory per-packet basis, it's the sort of 
proposition that will end up causing a long wake of operational problems 
and consequences.

Nick