US 7,061,859 B2
FAST PROTECTION IN RING TOPOLOGIESGeneral
US 7,061,859 B2
FAST PROTECTION IN RING TOPOLOGIES
Tech Center:
2600 Communications
Examiner:
Kwang Bin Yao
Art Unit:
2616 Computer Graphic Processing, 3D Animation, Display Color Attribute, Object Processing, Hardware and Memory
Agent:
Inventors:
Yossi Barsheshet
Assignee:
IP LITFIN US 2024 LLC
Priority:
08/30/01
Filed:
08/30/01
Granted:
06/13/06
Expiration:
10/05/23
Abstract
In a bidirectional ring network, in which nodes are mutually connected by network segments, a method of fault protection includes constructing a general mask indicating which of the segments can be reached. For a given data flow to be conveyed through the network from a source node to a destination node, a specific mask is constructed indicating the segments on a desired path of the flow. The general and specific masks are superimposed in order to determine a disposition of the flow.
Cooperative Patent Classification (CPC)
H04H04L12/437H04J3/085H04L