Introduction

References:

The Diameter - > Maintenance GUI pages display maintenance and status information for Route Lists, Route Groups, Peer Nodes, Connections, Egress Throttle Groups, DSR Applications, and DA-MPs.

The Diameter Maintenance Connections page also provides functions to enable and disable connections.

The Diameter Maintenance Applications page also provides functions to enable and disable DSR Applications.

Diameter Configuration Component Status for Egress Message Routing Decisions

DSR supports multiple instances of the Diameter protocol, each executing on a separate DA-MP. The Diameter Routing Function supports routing of Diameter Requests to Diameter Peer Nodes through Diameter Transport Function instances executing on either the same DA-MP (Intra-DA-MP routing) or an alternate DA-MP (Inter-DA-MP routing) that has connectivity to the given Peer Node.

Each Diameter Transport Function instance is required to share run-time status information for the Diameter connections it controls with all Diameter Routing Function instances.

Similarly, each Diameter Routing Function instance is also required to share Diameter Connection-related events it detects (such as Remote Busy Congestion) with the Diameter Transport Function instance that is controlling the Diameter connection.

Diameter Connection status is shared among all Active DA-MPs in the DSR NE in order for the Ingress DA-MP to intelligently select an egress connection based on the current status.

Diameter egress message routing is based upon a hierarchy of the Diameter Configuration components that are used for making egress message routing decisions.

The Operational Status of a component is based on the lower-level components that are contained in the components and on user-configurable elements:
  • The Diameter Routing Function is responsible for maintaining the Operational Status of each Peer.
  • The Operational Status of a Peer is an aggregation of status of Diameter Connections of the Peer.
  • Changes to the Operational Status of a Peer can affect the Operational Status of any Route Group that has a route associated with the Peer.
  • Changes to the Operational Status of a Route Group can affect the Operational Status of any Route List that is associated with the Route Group.
  • When the Operational Status of a Diameter connection changes to either Available or Unavailable, the status of any component that is directly or indirectly dependent upon that Diameter connection might need to be changed (Peer Nodes, Route Groups, and Route Lists).
Table 1 summarizes the status dependencies of Diameter Configuration components.
Diameter Configuration Component Status Dependencies
Diameter Configuration Component Component Status Dependency Configuration Element Dependencies

Route List

Peer Route Groups within a Route List

Connection Route Groups within a Route List

None

Peer Route Group within a Route List

Peer Nodes within the Peer Route Group

Route List element "Minimum Route Group Availability Weight"

Peer Route Group element "Peer Node Provisioned Capacity"

Connection Route Group within a Route List

Diameter Connections within the Connection Route Group

Route List element "Minimum Route Group Availability Weight"

Connection Route Group element "Connection Provisioned Capacity"

Peer Node

Diameter Connections

Peer Node element "Minimum Connection Capacity"

Diameter Connection

None

Admin State
Parent topic: Diameter Maintenance