HP Auto Port Aggregation Administrator's Guide HP-UX 11i v3 (766140-001, March 2014)

VLAN support
VLANs over link aggregates and failover groups have the same advantages of VLANs over physical
links, but with the following additional features:
• VLANs over link aggregates offer higher bandwidth than VLANs over a single physical link.
• VLANs over failover groups offer improved reliability. The VLANs continue to carry traffic in
case the active link failed.
• You can use VLANs over one link aggregate to serve multiple workgroups. This also enables
broadcast traffic to be isolated within the same broadcast domain, offering improved security
for workgroups.
• The same link aggregate or failover group can offer different level of service for each user
using ToS. You gain more flexibility in how you deploy link aggregates and failover groups.
• You can create, remove, and modify VLANs over link aggregates and failover groups without
rebooting the system. This enables you to configure networking on a server without disrupting
other users.
For more information on managing and using VLANs, see HP-UX VLAN Administrator's Guide and
your switch documentation.
Appendix D (page 92) describes characteristics of using VLANs over link aggregates and failover
groups and guidelines for each configuration.
Interoperability with HP Serviceguard
To use HP Serviceguard with HP APA, you must use HP Serviceguard version A.11.17.01 or later.
HP Serviceguard can use FEC and LACP link aggregates and failover groups(LAN_MONITOR
mode). For maximum number of links for each link aggregate, see the APA Support Matrix. For
installation guidelines, see “Configuring HP Serviceguard” (page 30).
Administrative methods
The following sections provide a brief overview of the methods for administering HP APA. HP
recommends that you use the System Management Homepage (SMH) whenever possible.
HP System Management Homepage
The HP System Management Homepage (HP SMH) enables you to administer your HP-UX system
locally via a web-based graphical user interface (GUI) and terminal user interface (TUI). It provides
a single, hierarchical menu interface that allows you to quickly find and invoke applications to
perform the most common system tasks.
In this manual, wherever HP SMH is mentioned in relation to HP APA configuration and
administrative tasks, it is presumed that you know how to invoke it. To invoke the HP SMH, do the
following:
Interoperability with HP Serviceguard 11