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Dedicated Connections to a Migrated VIP Can Lose their Connection after the VIP is Switched Back (Doc ID 339107.1)

Last updated on JANUARY 13, 2020

Applies to:

Oracle Net Services - Version to [Release 10.1 to 11.1]
Information in this document applies to any platform.
This problem can occur on any platform.


After a node is reinstated and the VIP address has moved back to the original node, connections established to the VIP when it was associated with the surviving node are no longer valid.


1. Node A fails and the VIP1 associated with Node A moves to Node B
2. Client connects to VIP1 and the connection is handed off to a dedicated process on Node B
3. Node A is restored and VIP1 moves back to Node A
4. Connection established in step 2 is now using the IP address associated with Node A, but the server process is on Node B

Example :



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