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The java utils.dbping Utility Fails with Error "java.net.SocketException: Connection reset" After Changing the MTU Size (Doc ID 2663446.1)

Last updated on AUGUST 23, 2021

Applies to:

Oracle WebLogic Server - Version 12.1.2.0.0 to 12.2.1.4.0 [Release 12c]
Information in this document applies to any platform.

Symptoms

After a planned outage of the environment, the connectivity with one of the Data Source(DS) is not coming up.
There is no network connectivity issue between Weblogic and DB machines.
SQLPLUS is working fine and able to connect to DB.

The only change was done in the Network side was lowering the Maximum Transmission Unit (MTU) Size.

When attempting to test Data Source from the WebLogic Console, the following error occurs.

Changes

 The only change that was done on the network side was lowering the MTU value.

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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