DM-IWF Administrative State and Operational Status

The DM-IWF application has an Administrative State and an Operational Status. The Administrative State (or Admin State - enabled or disabled) indicates the state that the operator desires the DM-IWF application to be in. The Admin State can be manually modified by the operator. The Operational Status indicates the actual status of the DM-IWF application.

Table 8-1 lists the DM-IWF Admin State and Operational Status related to the MD-IWF Routed Service State, MD-IWF Routed Service Congestion Level and DM-IWF (internal) congestion levels. It specifies the actions that DM-IWF will take in various situations.

ComAgent MD-IWF Routed Service presents an aggregated view of the all MD-IWF instances (one instance per SS7-MP) that have registered as service providers for the MD-IWF Routed Service. ComAgent reports the MD-IWF Routed Service State and the MD-IWF Routed Service Congestion Level to each DM-IWF instance.

In the Diameter to MAP direction, the DM-IWF Operational Status and the MD-IWF Routed Service congestion level determine whether a given Request from DRL can be forwarded to an MD-IWF. The DM-IWF Operational Status is determined by multiple attributes including DM-IWF Admin State, DM-IWF (internal) congestion level, MD-IWF Routed Service State and MD-IWF Service Congestion Level. In Table 8-1, DM-IWF Congestion Level is the maximum of the DM-IWF (internal) Congestion Level and MD-IWF Routed Service Congestion Level.

In Table 8-1, the DM-IWF Admin State, DM-IWF Congestion State, DM-IWF Shutting Down State, and the MD-IWF Routed Service State are used as inputs for calculating the DM-IWF Operational Status, DM-IWF Operational Reason, and DM-IWF Operational Reason Color.

Table 8-1 DM-IWF Admin State and Operational Status

DM-IWF Admin State	DM-IWF Congestion State	DM-IWF Shutting Down State	MD-IWF Routed Service State	DM-IWF Operational Status	DM-IWF Operational Reason	DM-IWF Operational Reason Color
Disabled	N/A	False	N/A	Unavailable	Shut down	Orange
Enabled	0	N/A	Available	Available	Normal	Gray
Enabled	1	N/A	Available	Available	Congested	Yellow
Enabled	2	N/A	Available	Degraded	Congested	Yellow
Enabled	3	N/A	Available	Unavailable	Congested	Red
Enabled	0	N/A	DegradedFoot 1	Available	SS7 Degraded	Yellow
Enabled	1	N/A	Degraded	Available	SS7 Degraded/ Congested	Yellow
Enabled	2	N/A	Degraded	Degraded	SS7 Degraded/ Congested	Yellow
Enabled	3	N/A	Degraded	Unavailable	SS7 Degraded/ Congested	Red
Enabled	0	N/A	Unavailable	Unavailable	SS7 Unavailable	Red
Enabled	1, 2, 3	N/A	Unavailable	Unavailable	SS7 Unavailable/ Congested	Red

^Footnote 1 MD-IWF Route Service State of Degraded does not impact DM-IWF's Operational Status.