Matches 1 - 50 out of 191 1 2 3 4 >


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US20150207727 PREDICTING ROUTE UTILIZATION AND NON-REDUNDANT FAILURES IN NETWORK ENVIRONMENTS  
A network analysis module may obtain information including but not limited to network traffic and topology information for a network environment including multiple separate networks and physical...
US20130129342 Optical Safety Implementation in Protection Switching Modules  
Optical safety functions are incorporated into protection switching modules which maintain redundant pathways to avoid interruptions in optical network connections. The optical safety functions...
US20140016924 PROCEDURE AND SYSTEM FOR OPTICAL NETWORK SURVIVAL AGAINST MULTIPLE FAILURES  
The procedure comprises using a pre-planned path restoration scheme for computing in advance, or pre-calculating, recovery paths for recovering failed working paths, and particularly comprises...
US20150229387 JOINT IP/OPTICAL LAYER RESTORATION AFTER A ROUTER FAILURE  
A method and system for providing joint IP/Optical Layer restoration mechanisms for the IP over Optical Layer architecture, particularly for protecting against router failure within such...
US20150104166 Suurballe-based Cloud Service Embedding Procedure in Software-Defined Flexible-Grid Optical Transport Networks  
We propose an efficient procedure, namely disjoint pair procedure based cloud service embedding procedure that first maps working and backup virtual nodes over physical nodes while balancing...
US20120308224 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.
US20150010298 METHOD, TOPOLOGY AND POINT OF PRESENCE EQUIPMENT FOR SERVING A PLURALITY OF USERS VIA A MULTIPLEX MODULE  
A number of users interface with a network via a multiplex module, on a communication path established between the multiplex module and a point of presence. Some users may be served by one or more...
US20130315579 METHOD AND SYSTEM FOR PROVIDING A SHARED DEMARCATION POINT TO MONITOR NETWORK PERFORMANCE  
An approach for detecting an error associated with a routing network coupled to a transport network comprising a plurality of optical communication nodes, switching, by an optical communication...
US20120321296 LIGHT PATH CHARACTERIZATION, TRAFFIC PROTECTION, AND WAVELENGTH DEFRAGMENTATION  
A method for managing an optical network having a plurality of nodes interconnected by a plurality of fiber links includes installing one or more active reconfigurable optical add/drop multiplexer...
US20150222971 SMART ODN SYSTEM OF LOW POWER CONSUMPTION  
The present invention discloses a smart ODN system of low power consumption, and the system is related to the ODN field and includes a smart management terminal, a master control management board,...
US20140219649 MANAGING ALTERNATE SITE SWITCHING IN AN OPTICAL COMMUNICATION SYSTEM  
A primary optical path in an optical network is established between first and second edge nodes of the optical network for communication between the first edge node and a primary customer network...
US20120076489 Optical Amplifier Protection Switch  
The rapid switching of optical fiber communication between one or two working optical amplifiers and one protect optical amplifier is accomplished using fast optical fiber switching and alarm...
US20120257886 METHOD AND DEVICE FOR IMPLEMENTING SHARED MESH PROTECTION AND OPTICAL NETWORK SYSTEM  
Embodiments of the present invention disclose a method for implementing shared mesh protection includes: receiving, by a first node, a message of a second type sent by a second node, where the...
US20140147106 RAPID RECOVERY IN PACKET AND OPTICAL NETWORKS  
A node may determine a failure in a first path for routing first optical network traffic between a first set of networking devices, where the first path includes a first set of optical transport...
US20120082448 SYSTEM AND METHOD FOR SPARING CHANNELS OF A MULTI-WAVELENGTH TRANSPONDER  
In accordance with an embodiment, a method for sparing channels in a wavelength division multiplexing (WDM) transponder comprises transmitting network traffic, over a plurality of active channels,...
US20120237200 METHOD AND SYSTEM FOR INCREASING TRANSPONDER SHARING FOR MESH RESTORATION IN A COMMUNICATION NETWORK  
In accordance with embodiments of the present disclosure, a method may include for each particular working demand in a communication network, calculating a dedicated backup path for a working path...
US20140016925 RESIZING A PATH IN A CONNECTION-ORIENTED NETWORK  
An existing path in a connection-oriented network requires resizing from a first size to a second size. Nodes exchange control plane signalling with other nodes which advertises available...
US20150244453 WSON RESTORATION  
Dynamic restoration involves routing and bandwidth assignment of an unplanned restoration path in a wavelength switched optical network (20), having regeneration nodes (60), nodes each having a...
US20140205278 CALL SETUP SYSTEMS AND METHODS USING DYNAMIC LINK TAGGING AND OVERBOOKING OF LINKS IN MULTI-DOMAIN TRANSPORT NETWORKS  
Call setup methods in a multi-domain network and a multi-domain network use dynamic link tagging and/or overbooking of External Network-Network Interface (ENNI) links. Thus, improved call setup...
US20120263453 METHOD FOR SUPPORTING SNCP OVER PACKET NETWORK  
A method is presented for supporting SNCP over a packet network connecting to two SDH sub-networks and transporting one or more SDH paths that are SNCP-protected in both SDH sub-networks. The...
US20130177305 OPTICAL COMMUNICATION NETWORK PATH RESTORATION  
A method and system of determining a new path through an optical network from a source node to a destination node when a link in an original path fails are disclosed. When a fault on a link is...
US20130272693 SYSTEM AND METHOD FOR SHARED MESH RESTORATION IN OPTICAL NETWORKS  
A method for shared mesh restoration includes configuring a switch to allow sharing of a plurality of backup line cards across a plurality of node degrees associated with a reconfigurable optical...
US20140126899 MESH RESTORATION AND BANDWIDTH ALLOCATION SYSTEMS AND METHODS FOR SHARED RISK CONNECTION GROUPS  
A method, a node, and a network include mesh restoration and bandwidth allocation systems and methods for shared risk connection groups for source-based routing control planes. The mesh...
US20130216216 OPTICAL NETWORK NODE WITH RESTORATION PATH  
A node for an optical network has an electrical selector (30, 35) coupled to a first transponder for selecting which of first or second connections, is carried. A connection controller (80, 130)...
US20120328282 Network Restoration Under Link or Node Failure Using Preconfigured Virtual Cycles  
The design of telecommunication networks is such that there is provision of end-to-end path protection to multiple demands under a single link or node failure in the networks. Restoration routes...
US20140161438 PROTECTION FOR DISTRIBUTED RADIO ACCESS NETWORKS  
The invention relates to a distributed radio access network communicatively coupled to a core network, and a method for upholding a service in case of a failure in the distributed radio access...
US20150016815 ADDING NEW ALTERNATIVE PATHS FOR RESTORATION IN WSON NETWORK  
A network management system manages preplanned alternative paths in a wavelength switched optical network for a traffic flow having a working path and two or more preplanned alternative paths from...
US20130202286 Ethernet Passive Optical Network Over Coaxial (EPOC) Protection Switching  
Protection switching methods, systems, and architectures are provided for hybrid Ethernet Passive Optical Network (EPON)-Ethernet Passive Optical Network Over Coaxial (EPOC) networks. Protection...
US20070014570 Simplified remote interface device and method for determining a failure at an optical fiber link terminated with a remote interface device  
The invention relates to a remote interface device (12) for terminating a remote optical fiber link, with a network input (14), a network output (15), a customer input (17) and a customer output...
US20120134664 JOINT SWITCHING METHOD FOR AN AGGREGATION NODE, AGGREGATION NODE AND SYSTEM  
A joint switching method for an aggregation node, an aggregation node, and an optical network protection system including an aggregation node are provided. By monitoring information transferred...
US20130188946 SYSTEM FOR REDUNDANCY IN ETHERNET PASSIVE OPTICAL NETWORKS (EPONS)  
A system for redundancy in Ethernet passive optical networks (EPONs) facilitates fast recovery from failure (less than 50 msec), path redundancy of the fiber optic network, and location redundancy...
US20120148230 Method for Time Division Multiplex Service Protection  
The present application provides a method for time division multiplex service protection. The method includes: on an OLT in a passive optical network, a working uplink port and a protection uplink...
US20140233939 SYSTEMS AND METHODS OF COMMUNICATING PATH STATUS IN OPTICAL NETWORKS  
The present disclosure may include a method to be performed by an electronic device in an optical network. The method may include generating a message associated with a slot and at least one...
US20140286633 TRANSPONDER AND OPTICAL TRANSMISSION APPARATUS  
A transponder among a plurality of transponders that are connected with a client device via a plurality of optical couplers, the transponder includes a protection timer configured to be activated...
US20140226967 Demand Advertisement Method for Shared Mesh Protection Path Computation  
A method includes the steps of: (1) generating, by circuitry of a first node, an advertising message including (a) a working path bandwidth demand; (b) an identification of at least two...
US20130077960 UTILIZING OPTICAL BYPASS LINKS IN A COMMUNICATION NETWORK  
Optical By-Pass (OBP) links may be created by adding wavelengths between nodes on the network. The OBP may extend between any pair of nodes on the network. Intermediate nodes on the OBP are...
US20140105593 LIGHT MODULE INTERLOCK SYSTEM  
Described is a light module interlock system comprising: an optical cable enabled to transmit light of a first wavelength and a second wavelength different than the first wavelength; a first light...
US20100310251 Optical Transmission Systems, Devices, and Methods  
An optical system with a first and second network tiers. The first network tier includes a plurality of major nodes optically interconnected by at least one transmission path. The second network...
US20120141117 Network Protection Method and Device  
The invention discloses a network protection method and device, the method comprises: initiating a protection configuration request through a control plane of an automatically switched optical...
US20130243418 FIBER PROTECTION AND POWER SAVE WITH SECURITY  
A system and method for Passive Optical Networks (PON) providing integration (cross-correlation) of powersave and fiber protection, optionally with encryption, facilitating the successful...
US20120294604 OPTICAL PROTECTION AND SWITCH ENABLED OPTICAL REPEATING  
An optical transmission system or its constituent repeater disposed optically between two terminals. The system includes at least two parallel optical paths between a first node and the repeater...
US20140321844 METHOD OF CARRYING OUT FAST SWITCHING IN OPTICAL COMMUNICATION NETWORKS  
method is provided for reducing adverse effects of a link failure in an optical network, wherein the optical network comprises at least one main link which comprises a first optical fiber...
US20110255859 METHOD AND SYSTEM FOR PROVIDING FAULT RECOVERY USING COMPOSITE TRANSPORT GROUPS  
An approach is provided for performing fault recovery using composite transport groups (CTGs). A first logical channel is established within a composite transport group, wherein the first logical...
US20110229123 CROSS-DOMAIN PARALLEL RECOVERING METHOD AND SYSTEM IN MULTI-LAYER AND MULTI-DOMAIN DISTRIBUTED OPTICAL NETWORK  
Provided is a cross-domain parallel recovering method and system in multi-layer and multi-domain distributed optical network (MMDON). Based on inter-domain LRA (Link Recovery Algorithm), the...
US20110217035 Protection Mechanism for a Communications Network  
The invention relates to a protection mechanism for a communications network. A node, a method, a computer program product and a communications network to provide protection for an optical...
US20150215032 Apparatus and Method for Optimizing the Reconfiguration of an Optical Network  
There is provided a method for optimizing the configuration of an optical network which is adapted to transport optical traffic along a path from a source node to a destination node, wherein the...
US20130129341 WIRELESS COMMUNICATIONS LINKS  
A wireless communications link comprising an RF link and a free space optics (FSO) link, a switch, an RF signal monitoring apparatus, an optical signal monitoring apparatus, alarm apparatus and a...
US20140169782 NETWORK DESIGN APPARATUS AND NETWORK DESIGN METHOD  
A network design apparatus includes: a first processing unit configured to select one or more paths between nodes in response to a request for a bandwidth between pairs of nodes in a network to...
US20130259467 COMMUNICATIONS NETWORK  
A passive optical network is provided which uses existing GPON OAM functionality and standard routing protocol messages to solve the downstream routing problem between an access service provider...
US20110262129 Method for Authentication of a Wireless Backup System for an Optical Network Unit  
An apparatus comprising a first passive optical network (PON) component configured to couple to a second PON component via an optical link and authenticate the second PON component based on...

Matches 1 - 50 out of 191 1 2 3 4 >