Possibly the more important question is ‘Why were you running a token ring network in 1999?’! I have no idea why our network was structured like that, this was my first job in the industry and I was a lowly PC tech at the time. If I had to guess, the word that springs to mind is ‘legacy’.
Eh, I was a user on a token ring university network almost that late, and it was superior to the congestion-crippled ethernet networks at more 'advanced' institutions. That said, I definitely didn't enjoy all the practice I got in building token ring-enabled Linux kernels.