On 15/07/16 14:49, Swift Griggs wrote:
All I'm saying is that the presence of multiple IP stacks looks to me to be unwieldy, organic, and incremental.
VMS came with DECnet built-in (although you had to license it). If you wanted TCP/IP there was UCX, which you had to install separately. The other TCP/IP stacks came from 3rd party vendors. That's why there were multiple implementations of TCP/IP for VMS.
DECnet might be totally integrated and awesome, but it's also proprietary,
The specs were (and are) freely available. (I'm not 100% sure that they were free-as-in-beer back then, but they are now). There was at least one implementation for Linux and (I think ...) another for Solaris. cisco also supported DECnet in some of
their switches.
seldom used,
Seldom used *now*. All the VMS systems I used commercially back then made use of DECnet.
and seems to mean different things to different people since it was developed in "phases" which bear only loose resemblance to each other in form & function. -Swift
IPv4 and IPv6 are also only loosely related. At least the DECnet phases were sequentially numbered :-)
(I'm assuming that Phase II existed at some point before Phase III, which definitely did exist. I also
assume that Phase I only acquired that designation once Phase II appeared!) Antonio -- Antonio Carlini arcarl...@iee.org
