Oracle Traffic Director (OTD) 12c : Basics & Overview

  • Oracle Traffic Director (OTD) 12c : Basics & Overview

Oracle Traffic Director (OTD)

Oracle Traffic Director (OTD) is software load balancer from Oracle that receive requests from client and forward it to back-end application like WebLogic , WebCenter, Portal etc. In this first post on OTD, I’ll be covering basic concepts related to OTD (More on installation & configuration of OTD later in future posts)

1. Oracle Traffic Director (OTD) is layer-7 software load balancer from Oracle.

2. OTD can be configured as front end for Web Server (like OHS, Apache, IHS) or Application Servers (like WeBlogic, WebSphere)

3. OTD is optimized for use in Oracle Exalogic Elastic Cloud and Oracle SuperCluster

4. On Exalogic, OTD can communicate to back-end servers on Exalogic’s InfiniBand fabric

5. OTD can be configured for High Availability (HA) in both Active-Active (A-A) or Active-Passive (A-P) Mode .

6. OTD can distribute client request to back-end servers in multiple load distribution algorithm like Round Robin, Least Connection Count, Least Response Time etc

7. You can deploy OTD in following 3 Topologies

7.1 Basic Single OTD : In this simple topology you have single instance of OTD accepting requests from clients and sending this to back-end servers .


7.2 Highly AvailableActive-Passive : In this Topology, you have two instances of OTD but in Active Passive mode. If Active node goes down, passive OTD node becomes active .


7.3 Highly Available – Active-Active : In this Topology, you have two instances of OTD but in Active-Active mode. This set-up would mean better utilisation of resources as Active Active but would need two virtual IPs (more on this later when I cover HA deployment of OTD).

8. Failover Group: is two OTD instance grouped by VIP to provide high availability in active-passive mode. In this Failover Group one instance is defined as Primary Instance while other as Backup Instance. If primary instance is not reachable then request will be routed to backup instance in that group .

9. OTD can be managed using
a) Fusion Middleware Control  /em
b) WLST (oracle_home/otd/common/bin/

10. OTD Can be installed & configured in one of two modes
a) Collocated – OTD with WebLogic Server
b) Standalone – OTD without WebLogic Server


Stay Tuned for Installation & Configuration of OTD in future post.


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About the Author Atul Kumar

Oracle ACE, Author, Speaker and Founder of K21 Technologies & K21 Academy : Specialising in Design, Implement, and Trainings.

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Leave a Comment:

Frischhut C. says February 7, 2017

Nice overview about this interesting product. Is there any plan/timeline for the installation & configuration post?


Mr Vishnu K Agrawal says May 28, 2018

Hi Atul.

We are using OHS load balancers , is OTD is better than OHS load balancer(or Apache load balancer), What are the advantages.


Erptree Oracle says June 30, 2018

The information you posted here is useful to make my career better. Thanks for sharing such a informative post. keep updates.

samba says July 18, 2018

how to route OTD to two JCS servers,please provide me any docs.

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