[ih] Installed base momentum (was Re: Design choices in SMTP)

[Brian E Carpenter]

On 11-Feb-23 09:31, Dave Crocker via Internet-history wrote:
> On 2/10/2023 12:29 PM, Charles H Sauer (he/him) via Internet-history wrote:
>> IBM people steeped in SNA had a hard time accepting TCP/IP.
> 
> In 1985 I worked at a company with a very large IBM SNA network. I had
> quite a bit of trouble processing a tidbit that was mentioned in
> passing, about needing to take down the entire network to add a new node...

Right. I recall using the need for a sysgen and therefore the need to batch
up changes and install them at 3 a.m. as one of the main arguments for why
SNA would be a very, very bad idea at CERN (where, of course, physics ran 24x7).

    Brian