With Exchange 5.5 coming to the end of its support life cycle, lots of companies have been migrating quickly from Exchange 5.5 to Exchange 2000 or Exchange 2003. One major component that is affected by mixed mode site migrations/consolidation is the OAB. So with that being said Dave Goldman took a few minutes to share my knowledge with everyone around troubleshooting OAB PDN changes.

 

His write-up covers the following:

 

What is a PDN table?

The causes for PDN table changes

New default behavior with Exchange 2003 SP2

How to troubleshoot and Isolation of PDN table changes

Site Consolidations and PDN table changes

How to fix the PDN table changes

Effects that PDN table change can have on a network

- Overall Duration of the OAB Download

- Network Saturation

- How can all of the outlook downloads saturate a WAN?

Minimizing the side effects of Full OAB Downloads caused by PDN table changes

- Limit Large Sets of Full OAB download

- Limit Impact of a full OAB download

- Consider a Remote OAB Only Server for Remote Outlook clients

 

To read it – head over here – an excellent read!

 

- Nino Bilic