This figure shows the following hosts:

• Host 1 has two J2EE and Web Cache installations.
• Host 2 has two J2EE and Web Cache installations.
• Host 3 has an infrastructure installation including:
  • Oracle9iAS Metadata Repository
  • Oracle9iAS Single Sign-On
  • Oracle Internet Directory
  • Oracle Management SErver

All of J2EE and Web Cache instances on hosts 1 and 2 connect to infrastructure on host 3.