The value of the object tmnxOspfDbAsn indicates the Autonomous System Number the IGP is using during its database export. The value from TIMETRA-VRTR-MIB::vRtrAS4Byte at the moment tmnxOspfDatabaseExport is enabled is used as AS number. The used AS number gets updated when the value from tmnxOspfAdminState changes from disabled (2) to enabled (1) or when the value from tmnxOspfDatabaseExport changes from disabled(2) to enabled(1).
Sources for this description
Netdisco MIB archive copiesNokia networking MIB copies (LibreNMS/Observium Community)