Installation Manual

iLO network port configuration options
The iLO subsystem provides the following options for network connection:
• iLO Dedicated Network Port—Uses an independent NIC that is dedicated to iLO network
traffic only. When supported, this port uses an RJ-45 jack (labeled iLO) on the back of the
server.
• Shared Network Port LOM—Uses a permanently installed NIC that is built into the server.
This NIC normally handles server network traffic, and it can be configured to handle iLO
network traffic at the same time via a common RJ-45 connector.
• Shared Network Port FlexibleLOM—Uses an optional NIC that plugs into a special slot
on the server. This NIC normally handles server network traffic, and it can be configured to
handle iLO network traffic at the same time via a common RJ-45 connector.
NOTE: For information about the NICs your server supports, see the server QuickSpecs at
http://www.hpe.com/info/qs/.
iLO network connection considerations
• Only one of the Dedicated Network Port or Shared Network Port options can be enabled at
a time because iLO supports only one active NIC connection.
• By default, the iLO Shared Network Port uses port 1 on the server NIC. Depending on the
server configuration, this NIC might be a LOM or FlexibleLOM adapter. The port number
corresponds to the label on the NIC, which might be different from the numbering in the
operating system.
If the server and the NIC both support port selection, the iLO firmware allows you to select
a different port number. This feature is supported with iLO 4 2.00 and later. If a port other
than port 1 is selected for Shared Network Port use, and your server does not support that
configuration, iLO switches back to port 1 when it starts.
• Access to iLO via IPv6 is not currently supported when the Shared Network Port is enabled.
• On servers that do not have a Dedicated Network Port, the standard hardware configuration
provides iLO network connectivity only through the iLO Shared Network Port connection.
On these servers, the iLO firmware defaults to the Shared Network Port.
• Due to server auxiliary-power budget limitations, some 1Gb/s copper network adapters used
for iLO Shared Network Port functionality might run at 10/100 speed when the server is
powered off. To avoid this issue, Hewlett Packard Enterprise recommends configuring the
switch that the iLO Shared Network Port is connected to for auto-negotiation.
If the switch port that iLO is connected to is configured for 1Gb/s, some copper iLO Shared
Network Port adapters might lose connectivity when the server is powered off. Connectivity
will return when the server is powered back on.
• Disabling the iLO Shared Network Port does not completely disable the system NIC—server
network traffic can still pass through the NIC port. When the iLO Shared Network Port is
disabled, any traffic going to or originating from iLO will not pass through the Shared Network
Port.
• If the Shared Network Port is enabled, you cannot modify the link state or duplex options.
When using Shared Network Port configurations, these settings must be managed in the
operating system.
• If the Shared Network Port is enabled and you use NIC teaming, review the section “NIC
teaming with Shared Network Port configurations” (page 24).
Configuring the NIC settings 101