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| Number | Title | Issue Date |
| 7921326 | Spatial monitoring-correlation mechanism and method for locating an origin of a problem with an IPTV network A spatial monitoring-correlation mechanism and a method are described herein for determining an origin of a problem within an Internet Protocol Television (IPTV) network by using topology information about the IPTV network and at least one error notification (e.g., ... | 04/05/2011 |
| 7903586 | Ring rapid multiple spanning tree protocol system and method In an embodiment, a method is disclosed for operating a network having a group of bridges connected together to form a ring, each bridge having two ports assigned to the ring to form a group of ring ports. The claimed embodiment includes forwarding information throu... | 03/08/2011 |
| 7872991 | Methods and systems for providing MPLS-based layer-2 virtual private network services Methods and systems for forwarding packets over Label Switched Paths (LSPs) in a Virtual Private Network (VPN) are implemented within a Layer-2 architecture. A system includes a number of multi-purpose nodes connected by a number of multi-protocol label switching (M... | 01/18/2011 |
| 7870462 | Methods and devices for randomizing burst errors Error bursts are randomized by an interleaver which makes use of “set leaders” to generate permutation indices. The permutation indices are used to route bits from initial positions in an input bit stream to re-arranged or randomized positions in an output bit s... | 01/11/2011 |
| 7843845 | Diagnostic tool and method for troubleshooting multicast connectivity flow problem(s) in a layer 2 aggregation network A diagnostic tool and method are described herein that are capable of diagnosing and localizing a multicast connectivity flow fault within a layer 2 aggregation network. In one application, the diagnostic tool and method can be used by a customer service repr... | 11/30/2010 |
| 7826378 | PON with distributed virtual port loopback A passive optical network (PON) access network connected to an external data network can be tested using a remote test host operating on the external data network by looping test data from the test host through the PON to an Optical Network Terminator (ONT), through... | 11/02/2010 |
| 7764624 | Methods and devices for preventing protocol stalling The present invention provides techniques for preventing protocol stalling. A control platform is adapted to generate a predetermined time period, wherein the predetermined time period is reset when an acknowledgement signal is received. The control platform is furt... | 07/27/2010 |
| 7673068 | Method and system for implementing a high availability VLAN A network node is described herein which ensures that whenever an ingress station (e.g., PC) communicates a special MAC DA packet then that packet's copies are forwarded (via a high availability VLAN) to its port(s) that are associated with remote network node(s) an... | 03/02/2010 |
