Enabling the ilo shared network port feature – HP Integrated Lights-Out 3 User Manual

Page 81

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it. If you later decide to switch back to the iLO Dedicated Network Port, you can do this using any
of the standard iLO interfaces.

On servers that do not have an iLO Dedicated Network Port, the standard hardware configuration
provides iLO network connectivity only through the iLO Shared Network Port connection. The iLO
firmware automatically defaults to the Shared Network Port.

The iLO Shared Network Port uses the network port labeled NIC 1 on the rear panel of the server
when Shared Network Port – LOM is selected, and the network port labeled 1 on the Shared
Network Port Enabled Standup NIC adapter if Shared Network Port Enabled Standup NIC is
selected. NIC numbering in the operating system can be different from system numbering. The iLO
Shared Network Port does not incur an iLO performance penalty. Peak iLO traffic is less than 2
Mb/s (on a NIC capable of 1 GB/s or 10 GB/s speeds), and iLO traffic volume is low unless the
Virtual Media or Remote Console feature is in use.

When using the iLO Shared Network Port, observe the following:

The iLO Shared Network Port is supported on all nonblade servers.

You can use the iLO Shared Network Port and the iLO Dedicated Network Port only for iLO
server management.

The iLO Shared Network Port is not an availability feature. Its purpose is to allow managed
network port consolidation.

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, HP recommends configuring the switch the iLO Shared
Network Port is connected to for autonegotiation.

If you want to configure the iLO switch for a speed of 1Gb/s, be aware that 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.

The iLO Shared Network Port and iLO Dedicated Network Port cannot operate simultaneously.
If you enable the iLO Dedicated Network Port, you will disable the iLO Shared Network Port.
If you enable the iLO Shared Network Port, you will disable the iLO Dedicated Network Port.

Disabling the iLO Shared Network Port does not completely disable the system NIC—network
traffic still passes through the NIC. When the iLO Shared Network Port is disabled, any traffic
going to or originating from iLO will not pass through the iLO Shared Network Port because
that port is no longer shared with iLO.

Using the iLO Shared Network Port can create a single failure point. If the port fails or is
unplugged, both the host and iLO become unavailable to the network.

Enabling the iLO Shared Network Port feature

The iLO Shared Network Port feature is disabled by default on servers that are shipped with a
Dedicated iLO Management NIC. You can enable it by using the following methods:

iLO RBSU—For more information, see

“Enabling the iLO Shared Network Port feature through

iLO RBSU” (page 82)

.

iLO web interface—For more information, see

“Enabling the iLO Shared Network Port feature

through the iLO web interface” (page 82)

.

XML configuration and control scripts—For more information, see the HP iLO 3 Scripting and
Command Line Guide
.

SMASH CLP—For more information, see the HP iLO 3 Scripting and Command Line Guide.

Configuring and using the iLO Shared Network Port

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