Intel S2600JF BBS2600JF User Manual
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Product codes
BBS2600JF
Platform Management Functional Overview
Intel®
Server Board S2600JF TPS
Revision 1.3
Intel order number G31608-004
46
Note: The number of possible active session values returned by Get Session Info is the total
number of allocated memory session slots in BMC firmware for IPMI Sessions. The actual
number of IPMI sessions that can be established at any time is dependent on Channel and User
IPMI configuration parameters and in compliance with the IPMI Specification, which is always
less than the total available slots.
number of allocated memory session slots in BMC firmware for IPMI Sessions. The actual
number of IPMI sessions that can be established at any time is dependent on Channel and User
IPMI configuration parameters and in compliance with the IPMI Specification, which is always
less than the total available slots.
4.6.4
BMC LAN Channels
The BMC supports three RMII/RGMII ports that can be used for communicating with Ethernet
devices. Two ports are used for communication with the on-board NICs and one is used for
communication with an Ethernet PHY located on an optional add-in card (or equivalent
on-board circuitry).
devices. Two ports are used for communication with the on-board NICs and one is used for
communication with an Ethernet PHY located on an optional add-in card (or equivalent
on-board circuitry).
4.6.4.1
Baseboard NICs
The specific Ethernet controller (NIC) used on a server is platform-specific but all baseboard
device options provide support for an NC-SI manageability interface. This provides a sideband
high-speed connection for manageability traffic to the BMC while still allowing for a
simultaneous host access to the OS if desired.
device options provide support for an NC-SI manageability interface. This provides a sideband
high-speed connection for manageability traffic to the BMC while still allowing for a
simultaneous host access to the OS if desired.
The Network Controller Sideband Interface (NC-SI) is a DMTF industry standard protocol for the
side band management LAN interface. This protocol provides a fast multi-drop interface for
management traffic.
side band management LAN interface. This protocol provides a fast multi-drop interface for
management traffic.
The baseboard NIC(s) are connected to a single BMC RMII/RGMII port that is configured for
RMII operation. The NC-SI protocol is used for this connection and provides a 100 Mb/s full-
duplex multi-drop interface which allows multiple NICs to be connected to the BMC. The
physical layer is based upon RMII, however RMII is a point-to-point bus whereas NC-SI allows
one master and up to four slaves. The logical layer (configuration commands) is incompatible
with RMII.
RMII operation. The NC-SI protocol is used for this connection and provides a 100 Mb/s full-
duplex multi-drop interface which allows multiple NICs to be connected to the BMC. The
physical layer is based upon RMII, however RMII is a point-to-point bus whereas NC-SI allows
one master and up to four slaves. The logical layer (configuration commands) is incompatible
with RMII.
Multi-port baseboard NICs on some products will provide support for a dedicated management
channel than can be configured to be hidden from the host and only used by the BMC. This
mode of operation is configured through a BIOS setup option.
channel than can be configured to be hidden from the host and only used by the BMC. This
mode of operation is configured through a BIOS setup option.
4.6.4.2
Dedicated Management Channel
An additional LAN channel dedicated to BMC usage and not available to host SW is supported
through an optional add-in card. There is only a PHY device present on the add-in card. The
BMC has a built-in MAC module that uses the RGMII
through an optional add-in card. There is only a PHY device present on the add-in card. The
BMC has a built-in MAC module that uses the RGMII
interface to link with the card’s PHY.
Therefore, for this dedicated management interface, the PHY and MAC are located in
different devices.
different devices.
The PHY on the card connects to the BMC’s other RMII/RGMII interface (that is the one that is
not connected to the baseboard NICs). This BMC port is configured for RGMII usage.
not connected to the baseboard NICs). This BMC port is configured for RGMII usage.
In addition to the use of an add-in card for a dedicated management channel, on systems that
support multiple Ethernet ports on the baseboard, the system BIOS provides a setup option to
allow one of these baseboard ports to be dedicated to the BMC for manageability purposes.
When this is enabled, that port is hidden from the OS.
support multiple Ethernet ports on the baseboard, the system BIOS provides a setup option to
allow one of these baseboard ports to be dedicated to the BMC for manageability purposes.
When this is enabled, that port is hidden from the OS.
4.6.4.3
Concurrent Server Management Use of Multiple Ethernet Controllers