| Patent Number |
Title Of Patent |
Date Issued |
| 7372803 |
Apparatus and method for establishment and protection of connections within mesh networks |
May 13, 2008 |
| A node within a mesh network includes an Optical Connection Controller (OCC) and a network element. When a connection path within the mesh network is required, an OCC determines if a particular connection path requires a network element to operate as a virtual gateway to separate the |
| 7304947 |
Connection creation/termination using parallel cross-connection download/undownload processes |
December 4, 2007 |
| A method of creating/terminating a connection associated with an end-to-end path defined through a communications network. According to the invention, cross-connection download/undownload processes in each intermediate node of the end-to-end path are triggered substantially in parall |
| 7287081 |
Controlled calls in a transmission network |
October 23, 2007 |
| Commands are shown and described that enable a user to manipulate a call connection for the purpose of maintaining links in a network. The Block command prevents new traffic from being added to an output port of a device in a connection. The Forced Restoration/Release of Forced Resto |
| 7042835 |
Method and apparatus for ensuring survivability of inter-ring traffic |
May 9, 2006 |
| A method and corresponding network element configuration for delivering communications services between first and second survivable rings, each comprising a respective plurality of network elements, at least two of which are common to both rings. For each particular service, one of the |
| 6658013 |
Method and apparatus for ensuring survivability of inter-ring traffic |
December 2, 2003 |
| A method and corresponding network element configuration for delivering communications services between first and second survivable rings, each comprising a respective plurality of network elements, at least two of which are common to both rings. For each particular service, one of the |
| 6616350 |
Method and apparatus for providing a more efficient use of the total bandwidth capacity in a syn |
September 9, 2003 |
| The present invention relates to a local node for use in a synchronous optical network ring. The local node includes a group of working transmission lines and a protection line, for connecting to a remote node. The local node further includes a control unit for monitoring the working |
| 6400859 |
Optical ring protection having matched nodes and alternate secondary path |
June 4, 2002 |
| The matched nodes provide protection for a failure in the connection between two bidirectional line switched rings. They use a secondary path in case of a primary path failure. The secondary path is set aside in either the working or protection bandwidth of the rings, thus wasting re |
| 6259837 |
Optical inter-ring protection having matched nodes |
July 10, 2001 |
| The matched nodes provide protection for a failure in the connection between two bidirectional line switched rings. They use a secondary path in case of a primary path failure. The secondary path is set aside in either the working or protection bandwidth of the rings, thus wasting re |
