Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-05-10
2005-05-10
Sam, Phirin (Department: 2661)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S392000, C370S222000
Reexamination Certificate
active
06891840
ABSTRACT:
In a local area network path control system, hubs are connected in a ring and classified into two groups. Each of terminals has two LAN controllers. One of LAN controllers is connected to one of the hubs belonging to one of the groups while the other is connected one of the hubs belonging to the other group. One of the LAN controller is used as an active controller and the other is used as a standby controller. Each of the terminals has a destination information table registering destination IP addresses and destination MAC addresses of the other terminals. When the terminal detects failure occurring between the active controller and the corresponding hub, it changes the active controller from one to the other of the two LAN controllers. Furthermore, the terminal notifies a newly MAC address for communicating with the terminal to the other terminals. Each of the other terminals rewrites the destination MAC address related to the terminal which notifies the newly MAC address of the destination information terminal.
REFERENCES:
patent: 5684800 (1997-11-01), Dobbins et al.
patent: 5708654 (1998-01-01), Arndt et al.
patent: 5910955 (1999-06-01), Nishimura et al.
patent: 5963540 (1999-10-01), Bhaskaran
patent: 6049825 (2000-04-01), Yamamoto
patent: 6088356 (2000-07-01), Hendel et al.
patent: 6343080 (2002-01-01), Kondo
patent: 6560229 (2003-05-01), Kadambi et al.
patent: 6700868 (2004-03-01), Smith et al.
patent: 61-295738 (1986-12-01), None
patent: 3-296344 (1991-12-01), None
patent: 9-102783 (1997-04-01), None
patent: 10-320327 (1998-12-01), None
patent: 11-168488 (1999-06-01), None
patent: 11-205356 (1999-07-01), None
Article—An Open Solution to Fault-Tolerant Ethernet: Design, Prototyping, and Evaluation—J. Huang, et al.—pp. 461-469 (1999).
Foley & Lardner LLP
NEC Corporation
Sam Phirin
Wahba Andrew
LandOfFree
LAN path control system capable of easily changing active... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with LAN path control system capable of easily changing active..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LAN path control system capable of easily changing active... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3439219