Telecom OAMP Agents
Network Managment Agents

• Static/Dynamic subsystems
• Facilities Vs Equipment
• The Equipment view is used to maintain the implementation.
• A facility is an abstract service provided by the product.
• E.g. A SONET ADM provides a capability needed to build a customer's network. The SONET ADM may be available from three vendors, and each vendor may use a different number of circuit-packs (equipment) to implement the same functionality/facility.
• Physical vs Virtual Entities - The circuit pack object lifecycle is independent of the presence of the physical circuit-pack hardware.
• Cardinality relationships between Equipment/Facilities
• One facility implemented by one circuit-pack (simple)
• One facility implemented by many circuit-packs.
• Many facilities implemented by one circuit-pack.
• Circuit-pack implements parts of many facilities.
• Object IDs
• Equipment Objects are generally organized according to a hierarchical bus structure (e.g. Bay-Shelf-Slot)
• Facilities are not as clear-cut.
• Relationships between circuit-packs may be fixed or customer configuration dependent depending upon how they are connected.
• Fixed relationships between circuit-packs are the result of a static physical characteristics of the system. E.g. the circuit-pack in slot 3 is always connected to the circiut-pack in slot 4 by electrical traces on the backplane. This type of relationship is easy to represent in software as a plug-n-play relationship.
• Configuration dependent relationships depend upon some externally variable physical characteristic of the system which may be modified by the user. E.g. A circuit-pack in shelf 3 slot 2 of type A can be connected to any circuit-pack of type B (regardless of its location) by a fiber optic cable. In this case, the software must be configured by the customer to create the relationship, or there must be some means of obtaining the identification of the other end of the connection using the connection itself.