Emerson 752I Manuel D’Utilisation
IPMI Controller:
IPMI Message Protocol
11-6
The PICMG 2.9 specification defines addressing on the public and private IPMBs. It defines
the slave addresses assigned to the chassis, power supplies, and peripheral boards based on
geographical addressing.
the slave addresses assigned to the chassis, power supplies, and peripheral boards based on
geographical addressing.
lists the slave address of each peripheral board, based
on its geographical address.
Table 11-3:
IPMB Slave Addresses
IPMI MESSAGE PROTOCOL
The IPMI message protocol is designed to be robust and support many different physical
interfaces. The Zircon PM supports IPMI messages over the IPMB interface. Messages are
defined as either a request or a response, as indicated by the least significant bit in the Net-
work Function Code of the message.
interfaces. The Zircon PM supports IPMI messages over the IPMB interface. Messages are
defined as either a request or a response, as indicated by the least significant bit in the Net-
work Function Code of the message.
shows the format of an IPMI request mes-
sage.
Table 11-4:
Format for IPMI Request Message
Geographical
Address [0:4]
Address [0:4]
IPMB Address
(Hex)
(Hex)
Geographical
Address [0:4]
Address [0:4]
IPMB Address
(Hex)
(Hex)
0
disabled
16
D0
1
B0
17
D2
2
B2
18
D4
3
B4
19
D6
4
B6
20
D8
5
B8
21
DA
6
BA
22
DC
7
BC
23
DE
8
BE
24
E0
9
C0
25
E2
10
C4
26
E4
11
C6
27
E6
12
C8
28
E8
13
CA
28
EA
14
CC
30
EC
15
CE
31
disabled
Byte:
Bits:
7:
6:
5:
4:
3:
2:
1:
0:
1
rsSA
2
netFn
rsLUN
3
Checksum
4
rqSA
5
rqSeq
rqLUN