Call now: 252-767-6166  
Oracle Training Oracle Support Development Oracle Apps

 E-mail Us
 Oracle Articles
New Oracle Articles

 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog

 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Oracle Support

 SQL Tuning

 Oracle UNIX
 Oracle Linux
 Remote s
 Remote plans
 Application Server

 Oracle Forms
 Oracle Portal
 App Upgrades
 SQL Server
 Oracle Concepts
 Software Support

 Remote S


 Consulting Staff
 Consulting Prices
 Help Wanted!


 Oracle Posters
 Oracle Books

 Oracle Scripts

Don Burleson Blog 








  Oracle Database Tips by Donald Burleson

Using Netstat to determine SDU/TDU 

SQL*Net tuning can be a challenging topic, so it will not be covered extensively here. Oracle has many valuable references including Document ID 1018693.6 How can SQL*Net performance be improved, and 1005123.6 Tuning SQL*Net for better performance. These should help if it is determined that there is a network-related problem that needs to be tuned from Oracle.

Another way to get this information is to communicate with the network group or system administration group.  Obtaining information this way helps keep communications open with these groups, which is a good idea. 

Regardless of the way the information is obtained, make sure that these values are set correctly since having the network use larger packet sizes will help performance.  Since every network packet has overhead; larger packets will result in fewer packets, and therefore less network-related overhead. Unless the packets are sized too large and they end up getting split up which will create more network-related overhead, so be careful.   

The last way to tune the network is reducing the number and size of the database accesses.  This boils down to tuning SQL.  By making efficient use of the database through reducing unnecessary data requests; there will be less traffic, and the remaining network traffic will get through with less delays.   

There are important things to consider when tuning the network.  One of which is to only work on it if the results from the wait analysis indicate that there is a problem.  Another very important item is that if tuning in this arena is required, undertaking this alone as the DBA is not recommended.  Work with someone in the networking group to get an understanding of the existing network configuration and what options are available for changing it.

The above book excerpt is from:

Oracle Wait Event Tuning

High Performance with Wait Event Iinterface Analysis 

ISBN 0-9745993-7-9  

Stephen Andert

Oracle Training at Sea
oracle dba poster

Follow us on Twitter 
Oracle performance tuning software 
Oracle Linux poster


Burleson is the American Team

Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

and include the URL for the page.


Burleson Consulting

The Oracle of Database Support

Oracle Performance Tuning

Remote DBA Services


Copyright © 1996 -  2020

All rights reserved by Burleson

Oracle ® is the registered trademark of Oracle Corporation.