Intel S2600CP Technical Product Specification - Page 91

Intel® Server Board S2600CP and Server System P4000CP TPS Intel® Server Board S2600CP and Intel® Server System P4000CP Platform Management 6.4.3.4.2 Dedicated Management Channel An additional LAN channel dedicated to BMC usage and not available to host SW is supported by 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. 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. 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. 6.4.3.4.3 Concurrent Server Management Use of Multiple Ethernet Controllers Provided the HW supports a management link between the BMC and a NIC port, the BMC FW supports concurrent OOB LAN management sessions for the following combination:  2 on-board NIC ports  1 on-board NIC and the optional dedicated add-in management NIC.  2 on-board NICs and optional dedicated add-in management NIC. All NIC ports must be on different subnets for the above concurrent usage models. MAC addresses are assigned for management NICs from a pool of up to 3 MAC addresses allocated specifically for manageability. The total number of MAC addresses in the pool is dependent on the product HW constraints (for example, a board with 2 NIC ports available for manageability would have a MAC allocation pool of 2 addresses).For these channels, support can be enabled for IPMI-over-LAN and DHCP. For security reasons, embedded LAN channels have the following default settings:  IP Address: Static  All users disabled IPMI-enabled network interfaces may not be placed on the same subnet. This includes the Intel® Dedicated Server Management NIC and either of the BMC's embedded network interfaces. Host-BMC communication over the same physical LAN connection - also known as "loopback" - is not supported. This includes "ping" operations. On baseboards with more than two onboard NIC ports, only the first two ports can be used as BMC LAN channels. The remaining ports have no BMC connectivity. Maximum bandwidth supported by BMC LAN channels are as follows:  BMC LAN1 (Baseboard NIC port) ----- 100M (10M in DC off state)  BMC LAN 2 (Baseboard NIC port) ----- 100M (10M in DC off state)  BMC LAN 3 (Dedicated NIC) ----- 100M Revision 1.2 75 Intel order number G26942-003