Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Multicast transfer route setting method, and multicast label switching method for implementing former method










Image Number 12 for United States Patent #7583601.

A method of establishing a multicast transfer route is disclosed that can reduce the cost of entire route under a constraint on delay incurred between starting point and ending points. The method includes the steps of: computing the shortest route with respect to delay connecting the starting point and the plural ending points based on measurement result; computing delay from a node on the shortest route to each ending point and the greatest delay; removing, if the greatest delay satisfies a delay condition, the greatest-cost route from the shortest route in accordance with selection criteria effective for cost reduction; dividing the multicast transfer route into two route trees; and establishing separately computed route as a complementary route that complement the removed route for connecting the two route trees. A method of multicast label switching for realizing the above method is also disclosed. A multicast label switching route is established using hierarchical labels by establishing a common multicast label switching route using a first layer label and establishing plural partial multicast label switching routes for subgroup destinations using lower layer labels. A relay node recognizes the hierarchical labels thereby to label-switch using all hierarchical labels.








 
 
  Recently Added Patents
Imaging lens having five lens elements, and electronic apparatus having the same
Method and apparatus for monitoring wireless communication in hearing assistance systems
Method for determining an object class of an object, from which light is emitted and/or reflected to a vehicle
Multiple RF band operation in mobile devices
Virtual image display device and manufacturing method of virtual image display device
MEMS autofocus actuator
Method for improving the performance of browser-based, formula-driven parametric objects
  Randomly Featured Patents
Apparatus for purifying a liquid effluent containing pollutants
Intermediate frequency slope compensation control arrangements
Electronic toy, control method thereof, and storage medium
Arrangement for fire control
Four-wheel drive vehicle power train
Polymer stabilized neuropeptides
Color ink stick for solid ink printer
Method for displaying roaming charge rate on mobile station
Expanding sleeve fixture
Marine exhaust elbow structure with enhanced water drain capability