There are two primary considerations that must be addressed for the mechanism described in this document to work effectively. The first takes into consideration that the Diameter base protocol defined in [RFC6733] is designed to transport multiple Diameter applications and that Diameter nodes can be implemented that support multiple applications. In order for the DRMP mechanism to work, the priorities defined for all messages across all applications used in a Diameter administrative domain must be defined in a consistent and coordinated fashion. See Section 10 for a discussion of some of the considerations that need to be factored into the setting of DRMP priorities used by Diameter applications.