As much as it might seem obvious that communications fl ow from
the client, to the front-end server, to the director, to the access proxy, amazingly I??™ve found that
some organizations have director server roles that are completely bypassed in the fl ow of
messages. Somebody put in a director server and never properly confi gured the front-end server
to communicate with the director, so messages actually fl ow from the front-end server directly
to the access proxy.
To check the fl ow of communications look at the confi guration of each server to
determine their settings. Do the following for each LCS 2005 server in your environment:
1. As an administrator, from the LCS 2005 Administrative tool right-click on each
LCS 2005 front-end server, choose Properties, and click on the Routing tab
to view the outbound connection routes of each server, as shown in Figure 11.2.
Figure 11.2 Viewing the Outbound Connections on a Front-End
Server Confi guration
338 Chapter 11 ??? Upgrading to Offi ce Communications Server 2007
2. Write down the routing confi guration information for each front-end server.
3. Right-click on each LCS 2005 director server (if you have them in your LCS 2005
environment) and choose Properties, and then click on the Routing tab to view
the outbound connection routes of each director server.
4. Write down the routing confi guration information for each director server.
5. Right-click on each LCS 2005 access proxy server, choose Properties, and
click on the Routing tab to view the outbound connection routes of each server.
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