Alert Standard Format (ASF) Specification

Alert Standard Format (ASF) Specification v2.0 DMTF Document DSP0136
DSP0136 23 April 2003 Page 22 of 94
3.2.2.3 RMCP Data
All RMCP messages have the same Data block format, but the interpretation of the fields within
the Data block is dependent on the value present in the first field: the IANA Enterprise Number.
OEMs and ISVs can provide extensions to the RMCP message set by setting the field to their
IANA-assigned enterprise number.
Contents Type Offset Value
IANA Enterprise Number 4 bytes 00h IANA-assigned Enterprise Number associated with the
entity that defines the Message Type values and Data field
format for the message; set to 4542 for ASF-RMCP
messages defined by this specification. The number is
transmitted in network byte order.
Message Type 1 byte 04h Defined by the entity associated with the value in the
previous field.
Message Tag 1 byte 05h This field is used to match request-response pairs.
Reserved 1 byte 06h Reserved for future definition by this specification, set to 0.
Data Length 1 byte 07h Identifies the number of bytes present in the Data field
Data N bytes 08h Data associated with a particular Enterprise Number and
Message Type, number of bytes is specified by Data
Length.
General RMCP ASF Data
This specification defines the interpretation of the RMCP Data block when IANA Enterprise
Number field is set to 4542 (ASF IANA), see 3.2.4 on page 33 for more information:
Contents Type Offset Value
IANA Enterprise
Number
4
bytes
00 This field contains the 4-byte value 4542 or 11BEh, the number
assigned to ASF by the Internet Assigned Numbers Authority
(IANA). The number is transmitted in network byte order.
Message Type 1 byte 04h 00h:0Fh Reserved
10h:3Fh ”Set” messages
10h Reset, see page 33
11h Power-up, see page 33
12h Unconditional Power-down, see page 35
13h Power Cycle Reset, see page 33
40h:7Fh Response or “Get Response” messages
40h Presence Pong, see page 36
41h Capabilities Response, see page 36
42h System State Response, see page 38
43h Open Session Response, see page 39
44h Close Session Response, see page 40
80h:BFh Request or “Get” messages
80h Presence Ping
81h Capabilities Request
82h System State Request
83h Open Session Request
84h Close Session Request
C0h:CFh Authentication/Key Generation messages
C0h RAKP Message 1
C1h RAKP Message 2
C2h RAKP Message 3
D0h:FFh Reserved for future definition by this specification
Standard RMCP ASF Data