How to check the SDU value that's been negotiated? (non JDBC Thin)

Re:  DEFAULT_SDU_SIZE or change in SDU

This document describes a simple way to check and confirm that a specific SDU value has been negotiated between your client and server.

Remember that the lowest value between the client and server will be the one that's used so if you set it to a value higher than the default

(depends on version), but you do not set it at the other end, the lower value will likely be in play.

How to Determine SDU Value Being Negotiated Between Client and Server (Doc ID 304235.1)

The document provides instructions for collecting a simple Oracle Net trace from a remote client.