HP Auto Port Aggregation (APA) Release Notes HP-UX 11i v3 February 2007

• Supports HP-UX APA operations in the System Management Homepage (SMH) Graphical
User Interface and Terminal User Interface.
• Supports HP-UX APA operations in the new nwmgr command.
• Supports SSHA (Single System High Availability) Online-Deletion of NICs.
Improves system and network availability.
• Supports LACP (IEEE802.3ad) fast timeout.
HP APA can detect link failures more quickly.
• Supports Nortel's Split Multi-Link Trunking (SMLT) technology.
A link aggregate can span over more than one switch, which removes switches as a single
point of failure.
• Supports failover groups for use with HP Serviceguard.
• Supports the logging of status messages to the syslog.log file.
See the HP Auto Port Aggregation (APA) Administrator's Guide (formerly called the HP Auto Port
Aggregation Support Guide (HP Part Number J4240-90037) for more information on the new features
and how to use them.
Known Problems and Limitations
This section provides a list of known problems and limitations as known to HP at time of
publication. If workarounds are available, they are included.
• HP ProCurve Switches
When disabling Cisco's Fast Ether Channel protocol on the HP 9000 server, the HP ProCurve
switches block that particular port from further use.
Severity: Low, medium, high
Corrective Action: In order to use the network physical port on the HP 9000 server, physically
move the connection from the server to the switch to another non-Cisco Fast EtherChannel
port on the switch.
• Cisco Catalyst 5000 Switches
— Turning off Cisco's Fast Ether Channel protocol on one network physical port on the
HP 9000 server might cause the entire link aggregate (the port it is associated with) to
be deconfigured.
Severity: Low, medium, high
Corrective Action: Reconfigure the switch; do not include the port in the link aggregate
being configured. See the appropriate switch documentation for information on how
to reconfigure link aggregates.
The Catalyst 5000 switch only allows two- or four-port link aggregates. See the Cisco
Catalyst 5000 Configuration Guide for information about these limitations.
• 3Com SuperStack II Switches
To interoperate with the switch, disable the Trunk Control Message Protocol (TCMP) on all
of the ports that are being used with HP Integrity servers.
Compatibility and Installation Requirements
This section describes the compatibility information and installation requirements for this release.
For specific installation instructions, see the HP Auto Port Aggregation (APA) Administrator's Guide.
Operating System and Version Compatibility
This release is specific for HP-UX 11i v3 (B.11.31.02).
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