Intel S2600CO series User Manual page 78

Platform Management Functional Overview
6.10.3.4 LAN Failover
The BMC FW provides a LAN failover capability such that the failure of the system HW
associated with one LAN link will result in traffic being rerouted to an alternate link. This
functionality is configurable by IPMI methods as well as by the BMC's Embedded UI, allowing
the user to specify the physical LAN links constitute the redundant network paths or physical
LAN links constitute different network paths. BMC will support only all or nothing approach –
that is, all interfaces bonded together, or none are bonded together.
The LAN Failover feature applies only to BMC LAN traffic. It bonds all available Ethernet
devices but only one is active at a time. When enabled, if the active connection's leash is lost,
one of the secondary connections is automatically configured so that it has the same IP address.
Traffic immediately resumes on the new active connection.
The LAN Failover enable/disable command may be sent at any time. After it has been enabled,
standard IPMI commands for setting channel configuration that specify a LAN channel other
than the first will return an error code.
6.10.3.5 BMC IP Address Configuration
Enabling the BMC's network interfaces requires using the Set LAN Configuration Parameter
command to configure LAN configuration parameter 4, IP Address Source. The BMC supports
this parameter as follows:
1h, static address (manually configured): Supported on all management NICs. This is

the BMC's default value.
2h, address obtained by BMC running DHCP: Supported only on embedded

management NICs.
IP Address Source value 4h, address obtained by BMC running other address assignment
protocol, is not supported on any management NIC.
Attempting to set an unsupported IP address source value has no effect, and the BMC returns
error code 0xCC, Invalid data field-in request. Note that values 0h and 3h are no longer
supported, and will return a 0Xcc error completion code.
6.10.3.5.1 Static IP Address (IP Address Source Values 0h, 1h, and 3h)
The BMC supports static IP address assignment on all of its management NICs. The IP address
source parameter must be set to "static" before the IP address; the subnet mask or gateway
address can be manually set.
The BMC takes no special action when the following IP address source is specified as the IP
address source for any management NIC:
1h – Static address (manually configured)

The Set LAN Configuration Parameter command must be used to configure LAN configuration
parameter 3, IP Address, with an appropriate value.
The BIOS does not monitor the value of this parameter, and it does not execute DHCP for the
BMC under any circumstances, regardless of the BMC configuration.
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Intel order number G42278-004
Intel® Server Board S2600CO Family TPS
Revision 1.4