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4.4.1 Channel Management
Every messaging interface is assigned an IPMI channel ID by IPMI 2.0. Commands are provided to
configure each channel for privilege levels and access modes. Table 21 shows the standard channel
assignments:
Standard Channel Assignments
Channel ID
Interface
Supports
Sessions
0
Primary IPMB
No
1
LAN 1
Yes
2
LAN 2
Yes
3
LAN 3
(Provided by the Intel® Dedicated
Server Management NIC)
Yes
4
Reserved
Yes
5
USB
No
6
Secondary IPMB
No
7
SMM
No
8 - 0Dh
Reserved
-
0Eh
Self 2
-
0Fh
SMS/Receive Message Queue
No
Notes:
1. Optional hardware supported by the server system.
2. Refers to the actual channel used to send the request.
4.4.2 User Model
The BMC supports the IPMI 2.0 user model. 15 user IDs are supported. These 15 users can be assigned
to any channel. The following restrictions are placed on user-related operations:
1.
User names for User IDs 1 and 2 cannot be changed. These are always “” (Null/blank) and
“root” respectively.
2.
User 2 (“root”) always has the administrator privilege level.
3. All user passwords (including passwords for 1 and 2) may be modified.
4. User IDs 3-15 may be used freely, with the condition that user names are unique.
Therefore, no o
ther users can be named “” (Null), “root,” or any other existing username.
4.4.3 LAN Interface
The BMC implements both the IPMI 1.5 and IPMI 2.0 messaging models. These provide out-of-band local
area network (LAN) communication between the BMC and the network.