Intel S2600CP Family Technical Product Specification page 91

Intel Server Board S2600CP and Server System P4000CP TPS
®
The BMC supports IPv4 and IPv6 simultaneously so they are both configured separately and
completely independently. For example, IPv4 can be DHCP configured while IPv6 is statically
configured or vice versa.
6.4.3.6.1 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
for user to specify the physical LAN links constitute the redundant network paths or physical
LAN links constitute different network paths. BMC will support only a 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
(the next active LAN link will be chosen randomly from the pool of backup LAN links with link
status as "UP"). 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.
Standard IPMI commands for getting channel configuration will return the cached settings for
the inactive channels.
6.4.3.7 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.
6.4.3.8 DHCP BMC Hostname
The BMC allows setting a DHCP Hostname. DHCP Hostname can be set regardless of the IP
Address source configured on the BMC. But this parameter is only used if the IP Address
source is set to DHCP.
6.4.3.9 Address Resolution Protocol (ARP)
The BMC can receive and respond to ARP requests on BMC NICs. Gratuitous ARPs are
supported, and disabled by default.
6.4.3.10 Virtual Local Area Network (VLAN)
The BMC supports VLAN as defined by IPMI 2.0 Specifications. VLAN is supported internally by
the BMC, not through switches. VLAN provides a way of grouping a set of systems together so
that they form a logical network. This feature can be used to set up a management VLAN where
only devices which are members of the VLAN will receive packets related to management and
members of the VLAN will be isolated from any other network traffic. Please note that VLAN
does not change the behavior of the host network setting, it only affects the BMC LAN
communication.
LAN configuration options are now supported (by means of the Set LAN Config Parameters
command, parameters 20 and 21) that allow support for 802.1Q VLAN (Layer 2). This allows
VLAN headers/packets to be used for IPMI LAN sessions. VLAN ID's are entered and enabled
by means of parameter 20 of the Set LAN Config Parameters IPMI command. When a VLAN ID
Revision 1.1
Intel® Server Board S2600CP and Intel® Server System P4000CP Platform Management
Intel order number G26942-003
75