Before you configure the HP APA software, you must gather
information about your system and network environment. Figure 3-9 shows the APA Configuration
Worksheet. The following sections describe the information that you
need to record on the worksheets. If you are viewing this manual on
line, you can use the print feature to print a copy of this worksheet.
Aggregate Instance Number
The PPA number of the link
aggregate or failover group. Enter a value. For example, use 900 for lan900.
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Mode
The configuration mode of the link aggregate or failover
group. Your choice will be determined by the capabilities of the link
partner (for example, switch, router, or server) to which the link
aggregate physical interfaces will be connected. See your link partner's
documentation to determine which modes it supports. Check the mode
you want to use. The following choices are available:
- FEC_AUTO
Automatically start the FEC protocol on the physical port.
- LACP_AUTO
Automatically start LACP on the physical port.
- MANUAL
HP APA does not automatically aggregate ports. You must manually
add or remove ports from a link aggregate.
- LAN_MONITOR
The ports are used for a failover group.
- Not_Enabled
Create the link aggregate with
the Key, Group Capability, or Load Distribution Algorithm set to a
non-default value, but without any ports. You must add ports to enable
it.
Failover Policy
The mechanism by which LAN Monitor chooses the active
port in a failover group. The following choices
are available:
- Priority Based
If the active port fails, LAN Monitor chooses the
standby link that is UP and that has the highest port priority (highest value) to be the new active link. For the December 2005 and later releases of HP APA for HP-UX 11i
v1 (B.11.11.20) and PHNE_33116 (B.11.11.17) patch release.
- Cost Based
If the active port fails, LAN Monitor chooses the standby
link that is UP and has the lowest normalized port cost to be the new active link. This is also called proactive failover. See “Proactive Failover” for a description
of proactive failover and “Proactive Failover Examples” for proactive failover examples.
Check the failover policy you want to use.
Instance Number
The PPA numbers of the ports
that will be in the link aggregation or failover group. Enter the
numbers on the sheet.
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HW Path
The hardware path to the NIC associated with the
port to include in the link aggregate or failover group. A numeric
string of hardware components, noted sequentially from the bus address
to the device address.
For link aggregates, this is a string in the form LinkAggxx, where xx is the last two digits of the instance
number (00 – 49).
This field is provided as a convenience in case
you either do not know the PPA number of the port or want a place
to capture and save both values.
Interface Type
A short description of the NIC associated with
the port. For example, 100Base-TX.
Priority
The port priority in a failover group (LAN_MONITOR mode)
using priority-based failover or cost-based failover. If you assign
a priority value to one link, you must assign a priority value to
all links in the failover group. Leave this blank if you do not want
to assign a priority value; HP APA will assign it. For the December 2005 and later releases of HP APA
for HP-UX 11i v1 (B.11.11.20) and PHNE_33116 (B.11.11.17) patch release.
Cost
The port cost in a failover group (LAN_MONITOR mode) using cost-based
failover. A link that has a lower normalized cost (cost divided by
the link speed) is preferred over one with a higher normalized cost.
When both links have the same normalized cost, the one with the higher
priority is preferred. If you assign a cost value to one link, you
must assign a cost value to all links in the failover group. Leave
this blank if you do not want to assign a cost value; HP APA will
assign it.
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