Intel 5000 Series User Manual

Intel® 5000 Series Chipsets Server Board Family Datasheet System Management
Revision 1.1
Intel order number D38960-004
129
The BMC provides configuration command interfaces when used with an Intel
®
RMM. This is
done through a combination of IPMI and IPMI OEM commands. The BMC does not
automatically handle this configuration. It relies on the Intel
®
RMM to discover the BMC add-in
support and then to configure the BMC according to the Intel
®
RMM requirements. Typically, the
Intel
®
RMM would have been previously configured by a software utility.
4.21.2 Division of Network Traffic
Server management network traffic is handled either by the Intel
®
RMM or by the BMC,
depending on the physical configuration. This is described in the two sub-sections below. The
BMC only handles IPMI-over-LAN traffic, including SOL traffic, even if no Intel
®
RMM is
installed. The Intel
®
RMM handles TCP/IP traffic. Other basic protocols are routed depending on
the BMC and / or Intel
®
RMM configuration.
4.21.2.1 Third NIC Channel Interface to Intel
®
RMM
The Intel
®
RMM supports a dedicated NIC, the Intel
®
RMM NIC. The Intel
®
RMM owns routing
the network packets received over this interface. IPMI-over-LAN traffic, including SOL traffic,
received by the Intel
®
RMM through this NIC is forwarded to the BMC over an FML or SMBus
data link. The Intel
®
RMM handles other server management traffic autonomously.
The BMC supports this mode of operation through the fast management link (FML) network
interface (FNI). This is a high-speed serial interface that provides the data link between the
Intel
®
RMM and the Intel
®
631xESB / 632xESB I/O Controller Hub BMC. When the feature is
enabled, the BMC treats this data flow as a third LAN-based IPMI channel, in addition to the two
Intel
®
631xESB / 632xESB I/O Controller Hub-embedded NICs, and any IPMI response data is
sent back over the FML bus as necessary. The FNI mode of operation is disabled when the
BMC is reset due to a loss of standby power.
The BMC does not require the Intel
®
RMM to reassemble IP fragments before forwarding them,
but it is necessary for the Intel
®
RMM to do so to identify the UDP or TCP port that is targeted
by the IP payload.
4.21.3 Event Forwarding
The BMC supports sending notification to the Intel
®
RMM when certain events occur within the
BMC’s domain. This is implemented by the event forwarding mechanism. Event forwarding is a
capability that enables the BMC to forward to an add-in controller a copy of event information
that it internally generates or receives from a Platform Event message.
The following sub-sections describe BMC behavior when the event forwarding feature is
enabled. The formats of the event record data for forwarded events are based on the SEL event
records and OEM SEL record formats defined in Tables 32-1 and 32-2 of the IPMI 2.0
Specification.

Intel 5000 Series Specifications

General

Brand	Intel
Model	5000 Series
Category	Server Board
Language	English