Table 3-3: required message length for ipmi 1.5, 2 ipmitool – ADLINK cPCI-6S10 User Manual
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Hardware Platform Management
Message Length
The IPMI standard overall message for “no-bridging” messages is
specified as 32 bytes, maximum, including slave address. For
bridging messages to other interfaces, Master Write-Read and
Send Message commands are allowed to exceed 32-bytes on
IPMI.
The table below shows the required interface length in IPMI 1.5.
Some interfaces have extra recommended values in the IPMI
specification.
Table 3-3: Required Message Length for IPMI 1.5
3.2.2 IPMItool
IPMItool is an open-source software, which supports several message
interfaces to communicate with IPMI devices. It includes pre-define
commands such like “fru” and “mc”, and can also send raw IPMI com-
mands.
To send IPMI commands to the cPCI-6S10’s IPMC, instead of using IPMI-
tool under Linux login, it is possible to communicate remotely with
cPCI-6S10 IPMC through RMCP protocol, with the help of the IPMItool
utility.
Interface
Length(bytes)
KCS/SMIC Input
40
KCS/SMIC Output
38
BT Input
42
BT Output
40
IPMB Input
32
IPMB Output
36
SMBus 2.0 Input
36
SMBus 2.0 Output
36
Private Bus Input
34
Private Bus Output
23
LAN/PPP Input
45
LAN/PPP Output
42