Method and apparatus for waking up a sleeping system

Details Method and apparatus for waking up a sleeping system Method and apparatus for waking up a sleeping system

2005-08-23

2008-11-04

Du, Thuan N (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

By external command

C370S389000

Reexamination Certificate

active

07447927

ABSTRACT:
One embodiment of the present invention provides a system that wakes up a sleeping target system located on a target LAN (Local Area Network) from a remote system located on a remote LAN. Note that, since the sleeping target system is in a sleep state, it receives packets of a lower-layer protocol which cannot be used by the remote system to directly send packets to the sleeping target system. During operation, the remote system creates a wake-up packet. The remote system then uses a second protocol to send the wake-up packet to a relay agent located on the target LAN. Note that using the upper-layer protocol enables the remote system to communicate with the relay agent even though they are on different LANs. Upon receiving the first wake-up packet, the relay agent uses the lower-layer protocol to send a second wake-up packet to the sleeping target system, which causes the sleeping target system to wake up. Recall that the remote system cannot use the lower-layer protocol to send a wake-up packet directly to the sleeping target system because the remote system and the sleeping target system are on different LANs. The remote system overcomes this limitation by first sending a wake-up packet to the relay agent using the upper-layer protocol, which causes the relay agent to send another wake-up packet to the sleeping target system using the lower-layer protocol.

REFERENCES:
patent: 7295543 (2007-11-01), Kikuchi et al.
patent: 7324518 (2008-01-01), Dai et al.
patent: 2005/0198219 (2005-09-01), Banerjee et al.
patent: 2006/0034318 (2006-02-01), Fernandes et al.

Affiliated with

Also associated with

Rating

Method and apparatus for waking up a sleeping system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for waking up a sleeping system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for waking up a sleeping system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4024131