OAM Servers

One or more pairs of Operation, Administration, and Maintenance (OAM) servers make up the OAM component of the DSR. Each pair of servers has an Active/Standby relationship, or three servers in an Active/Standby/Spare relationship. The Active server in the pair controls the virtual IP (VIP) addresses that direct XMI and IMI traffic to the Active server.

The role of the OAM server is to provide a central operational interface and all OAM functions (for example, user administration, configuration data, database administration, fault management, and upgrade functions) for the DSR under its control. The OAM server replicates configuration data to and collects all measurements, events, alarms, and log data from all message processors within the DSR.

The OAM server provides an SNMP interface to an external EMS/NMS. Up to five SNMP destinations can be configured at the OAM level.

OAM architecture is described in System Architecture.