On June 27, 2017 at 2:43 PM Dave McGuire via vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:

On 06/27/2017 01:21 PM, Kenneth Seefried via vcf-midatlantic wrote:

I know my IGS (long gone) ran

IOS 8.x (upgraded from 6.x as I recall), and there was 9.x update that
involved swapping PROMs. Never saw 10 on an IGS; that would have been
a very, very tight fit since the IGS only had 1 or 2M RAM. Pretty
sure 10.x ran on the AGS+ if you had enough memory.

10.x can indeed run on the AGS+. I've never seen it on any smaller
*GS router.

CGS/MGS/AGS/ACS all had the same processor back plane so if it had

enough memory it could run the IOS. The AT&T Model 200 BRouter (CGS)

I have has a CSC3 (68030) with at least 9.x. The ACS (Dave?) has 9.x also.

Played around with IOS 15.5 the other day...times have changed.

Yeah but it's still IOS, and still looks a whole lot like TOPS-20. :-)

That would be because Cisco was influenced by the DEC equipment CLI.

I spoke with the developers in 1989 about that.