HP Integrated Lights-Out 2 User Guide

NOTE: If autosense is disabled, the network switch must match the iLO 2 settings to prevent
iLO 2 access issues.
You are not permitted to modify the NIC speed settings and autosense options on blade
servers. These settings are auto negotiated between iLO 2 and the Onboard Administrator.
iLO 2 subsystem name limitations
The iLO 2 subsystem name represents the DNS name of the iLO 2 subsystem. For example, ilo
instead of ilo.hp.com. This name can only be used, if DHCP and DNS are configured properly
to connect to the iLO 2 subsystem name instead of the IP address.
• Name service limitations – The subsystem name is used as part of the DNS name and WINS
name. However DNS and WINS limitations differ:
— DNS allows alphanumeric and hyphen. WINS allows alphanumeric, hyphen and
underscore.
— WINS subsystem names are truncated at 15 characters, DNS are not.
If you require underscores, they can be entered in RBSU or using the iLO 2 scripting utility.
NOTE: Name service limitations also apply to the domain name.
To avoid name space issues:
◦ Do not use the underscore character.
◦ Limit subsystem names to 15 characters.
◦ Verify you can ping iLO by IP address and by DNS/WINS name.
◦ Verify NSLOOKUP correctly resolves the iLO network address and that there are no
namespace conflicts.
◦ Verify DNS and WINS both correctly resolve the name (if you are using both).
◦ Flush the DNS name if you make any name space changes.
iLO 2 Shared Network Port
The iLO 2 Shared Network Port enables you to choose either the system NIC or dedicated iLO 2
Dedicated Management NIC for server management. When you enable the iLO 2 Shared Network
Port, both regular network traffic, and network traffic intended for iLO 2 pass through the system
NIC.
iLO 2 provides support for servers that might not have an iLO 2 Dedicated Management NIC. On
servers using the iLO 2 Dedicated Management NIC, the standard hardware configuration provides
iLO 2 network connectivity only through the iLO 2 Shared Network Port connection. iLO 2 detects
the lack of an iLO 2 Dedicated Management NIC and automatically defaults to the Shared Network
Port. On some of these servers, an iLO 2 Dedicated Management NIC might be available as a
hardware option. If an iLO 2 Dedicated Management NIC is available as a hardware option, iLO
2 defaults to the installed iLO 2 Dedicated Management NIC. On servers using the iLO 2 Dedicated
Management NIC, you can enable shared network port operation through the iLO 2 interface.
The iLO 2 Shared Network Port uses the network port labeled NIC 1 on the rear panel of the
server. NIC numbering in the operating system can be different from system numbering. The iLO
2 Shared Network Port does not incur an iLO 2 performance penalty. Peak iLO 2 traffic is less
than 2 MB (on a NIC capable of 1000-Mb speeds), and average iLO 2 traffic is infrequent and
low.
The Shared Network Port is not available on HP ProLiant ML310 G3, ML310 G4, BL20p G4, and
all c-Class blade servers.
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