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124 GLOSSARY
OnNow/(ACPI)
A comprehensive system-wide approach to system and
device power control. OnNow is a term for a PC that is
always on but appears to be off and responds immediately
to user or other requests. See also ACPI.
Parallel Tasking architecture
A proprietary technique developed and patented by 3Com
that provides significant performance improvement by
allowing network interchanges of data to occur in parallel.
Parallel Tasking II technology
A proprietary PCI bus master interface developed by 3Com
that builds on the earlier Parallel Tasking architecture to
achieve faster data transfer rates and lower CPU utilization.
Parallel Tasking II technology removes any limits on the size
of the data bursts across the PCI bus.
PCI
Peripheral Component Interconnect. The PCI 32-bit bus
provides a processor-independent data path between
a PC’s central processing unit (CPU) and high-speed
peripheral devices. The PCI bus supports multiple peripheral
components and add-in cards at a peak bandwidth of
132 MBps, which is up to 10 times faster than that of ISA,
EISA, and MCA PC buses. PCI provides full Plug and Play
support for automatic NIC configuration in the PC.
promiscuous mode
A method by which a NIC receives and forwards all
network packets that arrive, regardless of the node
to which they are addressed. This feature allows easy
identification and resolution of network problems.
Remote Wake-Up
Feature that permits remote power-up of PCs for
after-hours administration. Remote Wake-Up powers on a
PC in standby or suspend mode remotely using a wake-up
packet (known as a Magic Packet) that is sent through the
LAN from a network management station. When the NIC
senses the packet, it asserts a Power Management Enable
(PME) signal to the PC, which initiates the start-up process.