Space Link Extension - Service Management - CCSDS

DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT
SleSmMessage
messageSequenceNumber
messageTimestamp
messagePrivateAnnotation
urgent
Figure 3-9: Stereotype Message Structure, Presented in a Class
Diagram
3.3.4.3.2.1.2 Besides having the parameters common to all SLE-SM messages, invocations
all carry the urgent parameter. The urgent parameter is used to indicate the timeframe
in which the invoked operation must be performed (see 3.1 and 3.4.2). The value of the
urgent parameter is also used to trigger operation-specific actions for some service
management operations. Operation-specific requirements that are associated with the value
of urgent are specified in the sections of this Recommended Standard that define those
operations.
3.3.4.3.2.2 Parameters
The constituent data set of the stereotype is defined in table 3-5.
Table 3-5: Stereotype Message Data Set
Parameter Name Parameter Definition/Description Data Type Units
messagePrivateAnnotation A text field that is available to carry nonstandard,
bilaterally agreed data between
Sender and Receiver.
String
or
‘NULL’
n/a
messageSequenceNumber
The sequence number of this message. It is
used to ascertain the relative sequencing
among messages.
Positive
Integer
messageTimestamp The time at which the message is created. UTC* n/a
n/a
CCSDS 910.11-R-2 Page 3-20 March 2008