On 2011-1-27, at 18:58, t.petch wrote: > And what happens when we have ProtocolX over SSH and ProtocolX over TLS? > > Must they share a port, with ProtocolX, which has been quietly using its > assigned port for > 20 years? No. The expert reviewer can obviously assign a second port in that case (if ProtocolX doesn't have a feature negotiation capability built in so that the port could be shared.) But we don't want to allocate multiple ports for the different security flavors of *new* protocols. At least we want this to be the exception. The expert team is (from what I hear) seeing frequent applications that look like "Hi, we're company X and our foo protocol runs on TCP. We'd like a port for that, and one for when we run foo over TLS." Lars
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