This MIB provides information about images running
on the system.  It has been extended to be useful 
for modular operating systems.

The image table provides information about currently 
running image on the system.  A modular operating 
system image consists of base image and all the 
installables loaded on the base image.  A base image
can be obtained from ceImageTable and all the 
installables installed on this image can be obtained 
using ceImageInstallableTable.

Glossary:

Base Image 
     Essential part of the operating system,
     which forms base functionality on top of 
     which patches can be added. 

MBI (Minimum bootable image) 
     A small image which contains the smallest 
     possible amount of functionality required to 
     bootstrap and load a full image.  This image 
     typically contains the kernel, the file system 
     drivers, and some hardware initialization code.  
     It is executed at boot-up, and initializes just 
     enough to access the rest of the code, and 
     run it.

Modular operating system 
     An operating system that exhibits runtime 
     modularity characteristics, such as multiple 
     address spaces, fault isolation between 
     processes, and modularity delivery and 
     replacement of image components.

Patch/Package/SMU (software maintenance upgrade)
     A modular replacement for some piece of on-box 
     content, such as a binary shared object, or a text
     file.  This entity is meant to replace or augment 
     something that is already part of the base image.

Composite package 
     Group of packages delivered as a bundle. It is 
     meant to be loaded on MBI.

Script
     A non-binary piece of on-box content, typically a 
     TCL script for use by the TCL interpreter, or 
     some other form of interpreted router content.

Installable 
     An installable can be a patch, package, composite 
     package, SMU or script.  It is a piece of 
     software which can be loaded on to the base 
     image on a system.

Location 
     This term is used in this MIB to represent path 
     where operating system image is located.  It is 
     the way of describing where on the file system
     the installed software is located.  Modular 
     operating system image consists of base image
     and installables loaded on this base image.

Tag 
     Tag is a virtual label placed by user that 
     indicates a point deemed to be stable.  It can be
     used to rollback to a system after an install 
     that negatively impacted the functionality of the
     system.  It gives points in system where user can
     go back to, to remove installables installed 
     after that point of time.