1. Feature Guide
  2. DSR Features and Functions
  3. DSR OAMP
  4. Network Interfaces

2.3.1 Network Interfaces

Three types of network interfaces are used in the DSR:

  • XMI – External Management Interface: Interface to the operator’s management network. XMI can be found on the OAM servers. All OAM&P functions are available to the user through the XMI.
  • IMI – Internal Management Interface: DSRs internal management network interface. All DSR nodes have this interface and use the IMI for exchange of crucial internal data. The user does not have access to the internal management network.
  • XSI – Signaling Interface: Interface to the operator’s signaling network. Only the Message Processors (MPs) have this interface. The XSI is used exclusively by the application and is not used by OAM&P for any purpose.