Browse Prior Art Database

Transparent Power-on Control of Token Ring and Token Bus File Server Computers

IP.com Disclosure Number: IPCOM000115025D
Original Publication Date: 1995-Mar-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 78K

Publishing Venue

IBM

Related People

Allard, DJ: AUTHOR [+2]

Abstract

Described is an architectural implementation to enable remotely located file server computers to be turned on when addressed. The implementation pertains to token ring and token bus file server computers and involves the modification of network adapter cards to enable the monitoring of network messages.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Transparent Power-on Control of Token Ring and Token Bus File Server
Computers

      Described is an architectural implementation to enable remotely
located file server computers to be turned on when addressed.  The
implementation pertains to token ring and token bus file server
computers and involves the modification of network adapter cards to
enable the monitoring of network messages.

      The technique allows file server computers to be powered up
remotely and transparently, through the token ring network, without
requiring personal intervention to turn on the server.  When a
network address is detected, a datagram is stored in low power memory
and a signal is provided to the system power supply to turn on the
system so that the datagram may be serviced.  After a period of
inactivity, the system is allowed to power off.

      Typically, computer network servers allow sharing of resources
over many computer systems so as to reduce the need for duplication
of hardware, software and data.  The servers are generally
interconnected through LANs utilizing token ring, ethernet, or token
bus adapter cards for computers that provide an internal means to
power up the server systems by means of low power circuitry.
Strategically, LAN's, based on token ring technology, are required to
be used in real time processes that must be controlled remotely.  The
concept described herein provides a means for token ring and token
bus servers to be transparently powered up so as to provide its
services when it is accessed.  The concept also includes a means to
power down a server after a programmed time of inactivity.

      The Figure shows a block diagram of the transparent power-on
control token ring, or token bus adapter cards, within the LAN card.
The token ring and token bus network cards are power...