Changes to the Best Route to a Network
Windows Server 2003: This API has been superseded by the Routing Table Manager Version 2 API and will not be available beyond Windows Server 2003. New applications should use the Routing Table Manager Version 2 API.
A change in any of the following values for the best route to a given destination network causes the routing table manager to generate a notification message sent to each registered client and to the forwarders:
- Protocol identifier
- Interface index
- Address of next-hop router
- Protocol family-specific data that includes route metrics
A change in protocol identifier, interface index, or next-hop router address occurs when a new, better-route entry is added, or when the current best-route entry is deleted or aged out, and leaves another route as the new best route.