DFS Referrals + Slow-link mode

Hey,

It's been so long since I looked at this... can someone remind me the difference between a root referral and link referral, and what happens in practice - what a client does with the 2 types of referrals.

Our root referral is 300 seconds (5 minutes) and link referrals are 1800 seconds (30 minutes).

Also, is this a valid configuration for slow-link mode. I want the root to be latency 32000, all links latency 30 with 10Mb throughput, but override public to just latency 120. Or will the * override/conflict with public

Thanks