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WebSphere Application Server migration assignment of port numbers to new endpoint addresses can cause port conflicts

Troubleshooting


Problem

When migrating federated nodes, the migration tools might select a reserved port and assign it to a new endpoint address. This results in port conflicts, which cause your environment to function improperly.

Symptom

You might see the following error in the log file:

BBOO0220E: ODCF8005E: There was an unexpected exception while initializing the SON overlay; the exception is java.io.IOException: The P2P layer was unable to bind to a UDP port.

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Migration","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"8.5.5;8.5;8.0;7.0;6.1","Edition":"Base;Express;Network Deployment","Line of Business":{"code":"LOB77","label":"Automation Platform"}},{"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Migration","Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"8.5.5;8.5;8.0;7.0;6.1","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Document Information

Modified date:
03 March 2025

UID

swg21643769