I think I've seen during one training that it is possible to receive alarms on a DMS coming from another DMS, but I can't remember how it was possible. Can I use the internal NATS messaging of a DMS to share information with another DMS ?
I believe you're thinking of 1 of the following:
(e.g. an element is replicated from 1 DMS on another)
- Northbound Interfaces
Or also more generally DataMiner interfaces | DataMiner Docs
A way of doing it could be by using an SNMP Manager on the DMS that needs to forward the alarms and a trap receiver on the receiving DMS. The SNMP Manager can have an alarm filter to only forward the needed alarms, and can potentially resend the active alarms every X minutes.
An other way could be by polling the alarms out of the first system by the standard web API by a driver on the second DMS. The Skyline DataMiner System driver can do this for example.