1. 1 Message Routing Administration Routing Group Planning Connecting Routing Groups Link Status Information

2. 2 Routing Group Planning Single routing groups Multiple routing groups Routing group topologies Managing routing groups

3. 3 Single Routing Group with Two Administrative Groups

4. 4 Multiple Routing Groups With a Wide Area Network (WAN) Link

5. 5 Hierarchical Routing Group

6. 6 Full-Mesh Routing Group Topology

7. 7 Mixed Routing Group Topology

8. 8 Connecting Routing Groups Routing Group Connector (RGC) Simple Mail Transfer Protocol (SMTP) Connector X.400 Connector Previous Exchange connectors Connectors over dial-up connections

9. 9 The Routing Group Connector

10. 10 Configuring a Routing Group Connector

11. 11 The Simple Mail Transfer Protocol (SMTP) Connector

12. 12 Configuring the Simple Mail Transfer Protocol (SMTP) Connector

13. 13 The X.400 Connector

14. 14 Configuring the X.400 Connector

15. 15 Connector Considerations Microsoft Exchange 2000 servers can use connectors installed on Microsoft Exchange 5.5 servers. Exchange 5.5 servers can use connectors installed on Exchange 2000 servers. Exchange 2000 Server and RGC connect to Exchange Server 5.5 and site connector. Exchange 2000 Server and SMTP connector connect to Exchange Server 5.5 and Internet Mail Service (IMS). Dial-up connections are configured with the Microsoft Windows 2000 Routing and Remote Access Service.

16. 16 Link Status Information Message routing Link state information and routing group masters Message rerouting based on link state information

17. 17 Message Routing

18. 18 Connector Selection

19. 19 Determining Link Failure

20. 20 The Link State Table

21. 21 The Link State Algorithm (LSA)

22. 22 Message Rerouting Based on Link State Information

23. 23 Chapter Summary Routing Group Planning Connecting Routing Groups Link Status Information