Topology determines the following:
- How component devices and clusters communicate with each other
- Which sites are primary and which are secondary
- How configuration data is replicated
- How incidents (events and alarms) get reported to the CMP system or external network management systems.
The Policy Management topology is composed of CMP, MPE, and MRA devices.
Figure 1 illustrates a Policy Management topology consisting of a georedundant primary (CMP Site 1) and secondary (CMP Site 2) CMP cluster, a georedundant MRA cluster, and two georedundant MPE clusters.
Example Policy Management Topology
As the figure shows:
- The active CMP Site 1 server replicates its data to its standby CMP server and the active CMP server at CMP Site 2.
- In turn, the active CMP Site 2 server replicates its data to its standby CMP server.
- Additionally, the active Site 1 CMP server replicates data to all servers in any MPE and MRA clusters in the topology, regardless of status (active, standby or spare).
- In turn, all servers and clusters merge status, events, alarms, and log data back to the active CMP server at Site 1.