Exchange 2010 edge transport or ISA 2006 ?
Posted on 2009-12-21
Currently we have an ISA 2006 nlb cluster in a DMZ that forwards client requests to an Exchange 2003 OWA nlb cluster which then forwards to an Exchange 2003 active\passive cluster:
Remote client--> ISA 2006 nlb---> OWA nlb--> Exchange backend
In transitioning to exchange 2010, should we publish the Ex2010 CAS nlb array in ISA (as we did for the exchange 2003 OWA nlb) OR replace the ISA servers with Edge transport servers nlb ? Any related web links would be appreciated.