Multiplex communications – Wide area network – Packet switching
Patent
1993-05-26
1995-03-14
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 60, 370 941, 370 13, H04J 314, H04B 1700, H04L 122
Patent
active
053982363
ABSTRACT:
An inter-node communications link failure recovery system for ATM nodes in which connections are quickly switched from a faulty link to one or more existing links. Within a node, alternate connection routes are predetermined for every connection originating at or terminating to a circuit connected to a link of interest (i.e., a link where recovery from a link fault is desired). The routing information for alternate connections is stored in the ATM node CPU memory. In response to an alarm indicating a break or other failure of link, the Network Management System sends a command to the node to establish hardware "loopback" path in the node interface circuit connected to the faulty link. The ATM node 10 then down-loads the alternate routing information for the failed link to the node routing tables used to route a cell onto a link in accordance with the cell header data. This causes all cells originally set up for transmission over the faulty link to be re-routed to a predetermined alternate link.
REFERENCES:
patent: 4550397 (1985-10-01), Turner et al.
patent: 4679189 (1987-07-01), Olson et al.
patent: 4884263 (1989-11-01), Suzuki
patent: 4903233 (1990-02-01), Cain et al.
patent: 5058105 (1991-10-01), Mansour et al.
patent: 5130984 (1992-07-01), Cisneros
patent: 5239537 (1993-08-01), Sakauchi
patent: 5241534 (1993-08-01), Omuro et al.
Hemmady Ajit G.
Reisig Carl F.
NEC America Inc.
Olms Douglas W.
Vu Huy D.
LandOfFree
Asynchronous transfer mode link recovery mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Asynchronous transfer mode link recovery mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asynchronous transfer mode link recovery mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-717404