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Guangzhi
Guangzhi Li, Kearny, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20080253281 | Bandwidth Management for MPLS Fast Rerouting - Certain exemplary embodiments provide a method comprising: in a network at a node located on a label switched path: selecting a backup path to respond to a failure; and for each link along the backup path, reserving a backup bandwidth, wherein the backup bandwidth is sufficient to reroute traffic around the failure. | 10-16-2008 |
| 20090190478 | SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK - Disclosed herein are systems, methods, and computer readable media for modifying IP backbone link weights such that multicast traffic and unicast traffic will not travel on a same path between nodes. The method comprises assigning link weights to nodes within an IP backbone such that multicast forwarding paths and unicast forwarding paths are failure disjoint, and delivering undelivered multicast packets using IP unicast encapsulation to the loopback address of next hop router on a multicast tree upon link/interface failure. | 07-30-2009 |
| 20110038251 | SYSTEM AND METHOD FOR RESTORATION IN A MULTIMEDIA IP NETWORK - Disclosed herein are systems, methods, and computer readable media for modifying IP backbone link weights such that multicast traffic and unicast traffic will not travel on a same path between nodes. The method comprises assigning link weights to nodes within an IP backbone such that multicast forwarding paths and unicast forwarding paths are failure disjoint, and delivering undelivered multicast packets using IP unicast encapsulation to the loopback address of next hop router on a multicast tree upon link/interface failure. | 02-17-2011 |
Guangzhi Li, Harrison, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20100091647 | Method for Restoration and Normalization in a Mesh Network - The present invention is directed to methods for signaling that enable bandwidth reservation, path restoration, path normalization, and path removal in a mesh network that supports shared mesh restoration. | 04-15-2010 |
Guangzhi Li, Madison, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20090252033 | SYSTEM AND METHOD OF DISTRIBUTING MEDIA CONTENT - Systems and methods to distribute media content are provided. A particular method includes receiving first link weighting factors and second link weighting factors at a router of a node of a multicast network and determining a primary path to a next hop node based on the first link weighting factors. Additionally, the method includes determining a backup path from a router of the primary path to the next hop node based on the second link weighting factors. The backup path does not overlap any primary path between two nodes of the network. Further, the method includes receiving a data packet from a parent node and routing a copy of the data packet from the router to the next hop node via the backup path, when a network link related to the router has failed. The method also includes routing data packets via a re-configured multicast tree that excludes the failed link. | 10-08-2009 |
| 20100067899 | Standby restoration signaling for optical networks - Systems and methods are described that provide a distributed restoration signaling protocol for shared mesh restoration with standbys for transparent optical networks. | 03-18-2010 |