2.2.1 Operations, Administration and Maintenance

The Operations, Administration, Maintenance and Provisioning components of the DSR include the System OAM located at each signaling node and the Network OAMP (NOAMP).

Key characteristics of the Network OAMP are as follows:

• Centralized OAMP for the DSR network.
• Central location for network wide data configuration, like “topology hiding.”
• Supports SNMP northbound interface to operations support systems for fault management.
• Runs on a pair of servers in active/standby configuration or can be virtualized on the System OAM blades at one signaling site (for small systems with two DSR signaling nodes only).
• Optionally supports disaster recovery site for geographic redundancy.
• Provides configuration and management of topology data.
• Maintains event and security logs.
• Centralizes collection, access to measurements, and reports.
• Centralized view of key operational metrics which identifies potential operational issues.
• Centralized architecture for the configuration and management of geo-redundant state DBs for policy and charging proxy.

Key characteristics of the System OAM at each signaling node are as follows:

• Centralized OAM interface for the node.
• Provides mechanism to configure the diameter data (routing tables, mediation, so on).
• Maintains local copy of the configuration database.
• Supports SNMP northbound interface to operations support systems for fault management.
• Provides mechanism to create user groups with various access levels.
• Maintains event and security logs.
• Centralizes collection, access to measurements, and reports.
• Centralized view of key operational metrics which identifies potential operational issues.