Edge synchronization, which is initiated
by the EdgeSync service that runs on the Hub Transport server, ensures that changes are replicated to
ADAM at configured intervals.
An Edge Transport server is subscribed to an Active Directory site; this enables the Edge Transport
server to receive updates to ADAM from Active Directory. A partnership is created based on exchanged
credentials between the Edge Transport server and all the Hub Transport servers in the Active Directory
site. An implicit Send Connector is created, which enables Hub Transport servers in the Exchange
organization to relay messages to the Edge Transport server for delivery to the Internet without you
having to configure explicit Send Connectors.
The process of edge subscription starts when you run the New-EdgeSubscription cmdlet on the
Edge Transport server. This creates a public - private key pair as well as ADAM bootstrap credentials
that are used for communication between the Edge Transport server and Hub Transport server to
synchronize data. Next you run the same cmdlet on a Hub Transport server in the Active Directory
site and specify the site the Edge Transport server will be subscribed to. After subscription on both
servers, the EdgeSync process running on the Hub Transport server generates a new set of credentials
for the Hub Transport servers and replicates this information to the Edge Transport server, discarding
the bootstrap credential.
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