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Technical Reference Guide
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
5-33
NOTE:
For the WOL and AOL features to function as described in the following
paragraphs, the system unit must be plugged into a live AC outlet. Controlling unit
power through a switchable power strip will, with the strip turned off, disable WOL and
AOL functionality.
5.9.1 WAKE ON LAN
The 82559 NIC supports the Wired-for-Management (WfM) standard of Wake-On-LAN (WOL)
that allows the system to be booted up from a powered down condition upon the detection of
special packets received over a network. The NIC component receives 3.3 VDC auxiliary power
while the system unit is powered down in order to process special packets. The detection of a
Magic Packet by the 82559 NIC results in the PME- signal on the PCI bus to be asserted,
initiating system wake-up from an ACPI S1 or S3 state.
5.9.2 ALERT ON LAN
Alert-On-LAN (AOL) support allows the NIC to communicate the occurrence of certain events
over a network even while the system unit is powered off. In a system-off (powered down)
condition the 82801 ICH and the 82559 NIC components receive auxiliary +3.3 VDC power
(derived from the +5 VDC auxiliary power from the power supply assembly). Certain events
(listed in Table 5-22) detected by the 82801 ICH will result in the ICH generating an alert
message over the SMBus to the 82559 NIC. Upon receiving the alert message from the ICH the
NIC transmits the appropriate pre-constructed message over the network to a system
management console.
Reportable AOL events are listed in the following table:
Table 5–22
. AOL Events
Table 5-22.
AOL Events
Event Description
BIOS Failure System fails to boot successfully.
OS Problem System fails to load operating system after POST.
Missing/Faulty Processor Processor fails to fetch first instruction.
Thermal Condition Thermal ASIC reports high temperature.
Heartbeat Indication of system’s network presence (sent approximately every 30
seconds in normal operation).
The AOL implementation requirements are as follows:
1.
Intel PRO/100+ Management Adapter driver 3.1x or later (available from Compaq).
2.
Client-side utility agent software (available from Compaq).
3.
Management console running one of the following:
a.
HP OpenView Network Node Manager 6.x
b.
Intel LANDesk Client Manager
c.
Compaq Insight Manager