https://techcommunity.microsoft.com/blog/exchange/how-to-smoothly-survive-the-transition-from-linkstate-to-exchange-2007-routing/600713
How to smoothly survive the transition from Linkstate to Exchange 2007 routing | Microsoft...
Jul 1, 2019 - Routing changes recap By now you're probably aware of the basics of Exchange Server 2007 routing: No more routing groups (except for legacy purposes) No...
how tothe transition