TRANSFER Programming Manual

Management Domains
X400 Services
069138, Update 1 to 040970 Tandem Computers Incorporated 6–5
Figure 6-4 shows a P1 message with a P2 message content.
Figure 6-4. P2 Message Embedded in a P1 Message
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P1 Envelope
P1 Envelope Header
P1 Content
P2 Message
P2 Header
P2 Body
Body Part
Body Part
P2 Message
Management Domains The nodes in an X.400 network are organized into management domains that define
organizational boundaries within the network. There are two types of domains:
An Administration Management Domain (ADMD) can send, receive, and route
messages from other domains. The ADMD concept was created so that public
message-handling services (such as public utilities) or private message-handling
services could be distinguished from domains run by private organizations.
ADMDs can be defined within a country or can extend across country boundaries.