HP Auto Port Aggregation (APA) Release Notes for HP-UX 11i v1 and v2 December 2005

2 Release Notes for HP-UX 11i v2
This chapter provides information about the HP-UX 11i v2 (B.11.23.10) December 2005 release of HP Auto
Port Aggregation (APA) and LAN Monitor software.
Announcement
This release of HP APA now supports the aggregation of eight physical ports into a link aggregate and IPv6
addressing for link aggregates and LAN Monitor failover groups.
Auto Port Aggregation
HP APA is a software product that creates link aggregates, often called "trunks," which provide a logical
grouping of two or more physical ports into a single "Fat-Pipe." Network traffic is load balanced across all
of the links in the aggregation, which allows you to build large bandwidth logical links into the server that
are highly available and completely transparent to the client and server applications.
Two additional features are automatic link failure detection and recovery, as well as optional support for
load balancing of network traffic across all of the links in the aggregation. This allows you to build large
bandwidth "logical" links into the server that are highly available and completely transparent to the client
and server applications.
HP APA supports Serviceguard with certain conditions. See the HP Auto Port Aggregation (APA) Support
Guide for more information.
LAN Monitor
The LAN Monitor mode of HP APA provides a failover capability configuration tools similar to Serviceguard;
however, LAN Monitor does not support HP Serviceguard. In the event of link failure, LAN Monitor will
automatically migrate the data flow from the primary link to one of the standby links in the failover group.
What's in This Version
The B.11.23.10 version of HP APA:
• Supports the aggregation of up to eight physical ports into a MANUAL or FEC_AUTO mode link
aggregate. For proper operation, the link partner (switch or server) must also be configured to create
a trunk using same mode on those ports that are connected to the physical ports of the link aggregate.
LACP_AUTO and LAN_MONITOR modes continue to support up to 32 ports into a link aggregate or
failover group.
• Supports IPv6 addressing for link aggregates and LAN Monitor failover groups. You can now use
port-based (LB_PORT) and IP-based (LB_IP) load balancing for IPv6 traffic on link aggregates. In addition,
you can configure an IPv6 address on the primary port of a failover group.
• Supports the logging of status messages to the syslog.log file.
• Enables you to choose the MAC address of the first LAN port or first LACP-enabled port as the LACP
System ID.
See the HP Auto Port Aggregation (APA) Support Guide (HP Part Number J4240-90033) for more information
on the new features and how to use them.
Known Problems and Workarounds
This section describes the known problems and workarounds for this release.
Announcement 9