Microsoft KB Archive/285130

= XCON: Link State Information =

Article ID: 285130

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

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This article was previously published under Q285130



SUMMARY
This article describes link state information and provides information about how to determine the amount of random access memory (RAM) that each Microsoft Exchange 2000 Server computer requires to hold the link state information. Exchange 2000 Server uses link state routing to make determinations about efficient routing. This link state information is held in RAM on each Exchange 2000 computer. Exchange 2000 uses the link state information to determine the most efficient route for a message based on cost and connection availability.



MORE INFORMATION
The link state information is never written to the hard disk; the link state information is always in RAM. The routing masters in each routing group receive the link state information when the routing masters are restarted and when the routing engine is restarted. The link state information is dynamically updated when routing group members determine that a link has changed its state, and then push the updates to their routing master. There is only one routing master in each routing group, and only the routing master can increment the link state version number (major version).

The link state information contains information about connectors, servers, routing groups, address spaces, the link state, the version, the organization, and costs. The best way to see the current link state information is to run the Winroute tool (Winroute.exe). Winroute.exe is located in the Support\Utils\I386 folder on the Exchange 2000 CD. Winroute.exe displays all unformatted information that is transferred from the link state port in the bottom pane. To determine the size of the link state information, you must use Winroute.exe to open the link state information and then save this data to a text file. The size of the text file is the same size as the link state information.

For additional information about how to use the Winroute tool, click the following article number to view the article in the Microsoft Knowledge Base:

281382 How to use the Winroute tool

For additional information about link state routing in Exchange 2000, click the following article number to view the article in the Microsoft Knowledge Base:

263249 XCON: Link state routing in Exchange 2000 Server

Additional query words: &quot;link-state table&quot;, LST winroute link state

Keywords: kbinfo KB285130

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