摘要:
The present invention provides methods and systems to remove the dependence on the IP layer (OSI layer three) in Video-on-Demand (VoD) transport networks. The present invention replaces the IP layer with Ethernet layer two addressing and even layer one, allowing connectivity in access/aggregation networks without IP layer three capabilities. The present invention enables STBs to communicate with VoD controllers, servers, and the like at layer two and/or layer one, eliminating the need for layer three routing capabilities in access/aggregation networks.
摘要:
The present invention reserves special Ethernet timing packets to mark timing within Ethernet and OTN, and secondarily creates frames within the Ethernet stream through the timing marker packets. The result is standard Ethernet with timing capability that can be transported over standard Ethernet links and/or within OTN. This timing capability can be utilized to carry synchronization over asynchronous Ethernet and OTN streams. Advantageously, enabling Ethernet and OTN to carry synchronous information will de-risk switching from SONET/SDH to Ethernet and/or OTN for service providers. The present invention also includes frame decomposition of the Ethernet stream. Ethernet packets are broken into fixed bandwidth and excess bandwidth. The fixed bandwidth is subdivided into fixed (negotiated) flits, with each flit corresponding to a specific user or combination of users like a private tunnel. This offers service providers a method to provide deterministic and more secure bandwidth over Ethernet to multiple clients.
摘要:
The present invention provides methods and systems to remove the dependence on the IP layer (OSI layer three) in Video-on-Demand (VoD) transport networks. The present invention replaces the IP layer with Ethernet layer two addressing and even layer one, allowing connectivity in access/aggregation networks without IP layer three capabilities. The present invention enables STBs to communicate with VoD controllers, servers, and the like at layer two and/or layer one, eliminating the need for layer three routing capabilities in access/aggregation networks.
摘要:
The present invention reserves special Ethernet timing packets to mark timing within Ethernet and OTN, and secondarily creates frames within the Ethernet stream through the timing marker packets. The result is standard Ethernet with timing capability that can be transported over standard Ethernet links and/or within OTN. This timing capability can be utilized to carry synchronization over asynchronous Ethernet and OTN streams. Advantageously, enabling Ethernet and OTN to carry synchronous information will de-risk switching from SONET/SDH to Ethernet and/or OTN for service providers. The present invention also includes frame decomposition of the Ethernet stream. Ethernet packets are broken into fixed bandwidth and excess bandwidth. The fixed bandwidth is subdivided into fixed (negotiated) flits, with each flit corresponding to a specific user or combination of users like a private tunnel. This offers service providers a method to provide deterministic and more secure bandwidth over Ethernet to multiple clients.
摘要:
Network elements in IMS or other SIP systems are configured to pre-authenticate SIP requests either as proxy or by snooping. One or more of these network elements are pre-loaded with a local database copy of the user profiles as typically contained in the HSS inside of the IMS control structures. A master database, such as the one typically contained in the HSS, is distributed to all network elements using database distribution methods. Advantageously, pre-authentication solves bottleneck issues in the SIP mechanism by allowing an end user device to use fully authenticated SIP requests. This prevents the requirement to perform authentication, authorization, and accounting (AAA) all the way back to the core IMS network, alleviating lag and scaling issues. Additionally, network elements including can become aware of the services requested through SIP requests, and track these requests for optimization. Specifically, resources requested based upon SIP requests can be cached.
摘要:
The present invention utilizes control plane signaling to dynamically configure flexible, existential ports. The ports are referred to as existential as their nature can change over time depending on the present need of the network, and because the ports are flexible and reconfigurable to a plurality of bit rates and protocols. The present invention removes the constraints of provisioning individual ports and connections, such as from a network management system, and integrates the concept of flexible ports with signaling and control plane methods utilized for routing in modern networks. Advantageously, the present invention extends service providers' investments in equipment, and reduces operating expenses in providing systems that are able to dynamically deal with various network configurations and with low touch by automatically performing provisioning. The methods and systems of the present invention can be extended to other networks utilizing flexible ports, such as wireless radios and the like.
摘要:
Network elements in IMS or other SIP systems are configured to pre-authenticate SIP requests either as proxy or by snooping. One or more of these network elements are pre-loaded with a local database copy of the user profiles as typically contained in the HSS inside of the IMS control structures. A master database, such as the one typically contained in the HSS, is distributed to all network elements using database distribution methods. Advantageously, pre-authentication solves bottleneck issues in the SIP mechanism by allowing an end user device to use fully authenticated SIP requests. This prevents the requirement to perform authentication, authorization, and accounting (AAA) all the way back to the core IMS network, alleviating lag and scaling issues. Additionally, network elements including can become aware of the services requested through SIP requests, and track these requests for optimization. Specifically, resources requested based upon SIP requests can be cached.
摘要:
Typically, services in a network are set up via direct provisioning performed by an EMS/NMS/OSS, i.e. a platform supporting multiple WDM spans in order to provide NM services or a system responsible for managing at least part of the network, and communicating with agents in order to help keep track of network resources, statistics, and performance. Alternatively, services in the network are set up via automated nodal software that is capable of performing routing under EMS/NMS/OSS command. The present invention utilizes an XML-based protocol for controlling a plurality of settings to tie network equipment together, such as telecommunications, cable, enterprise, wireless, etc., across different transport network technologies, including optical, wireless, TDM, and packet. Network requests are carried in self-describing XML messages that are parsed by a general XML language parser. This changes the paradigm of XML used to control data records to XML controlling network equipment. This has many benefits including the ability to better function in the new IMS infrastructures being assembled.
摘要:
Typically, paths in a network are set up via direct provisioning performed by an Element Management System/Network Management System/Operations Support System, i.e. a platform supporting multiple Wavelength Division Multiplexed spans in order to provide Network Management services/a system responsible for managing at least part of the network, and communicating with agents in order to help keep track of network resources, statistics, and performance. Alternatively, paths in the network are set up via automated nodal software that is capable of performing routing under EMS/NMS/OSS command. A relatively recent protocol, Session Initiation Protocol, has evolved for use in conjunction with multimedia devices in order to locate and connect devices together. The present invention alters the fundamental assumption that SIP is used to trigger network connections between devices, and offers a new idea that SIP can be used to tie together network equipment in a plurality of settings, such as telecommunications, cable, wireless, enterprise, etc., across different transport network technologies, including optical, Time Division Multiplexed, and packet.
摘要:
A network method utilizing Session Initiation Protocol to establish a network path between network elements in a network includes generating a request for a network service in Session Initiation Protocol, wherein the request is one of manually and automatically configured, and wherein the request is directed to the network; obtaining network resources responsive to the request, wherein the network resources comprise network parameters required to obtain and provision the network path; and configuring the network resources responsive to the request. The network includes a plurality of network elements operable to receive Session Initiation Protocol requests. Optionally, the plurality of network elements include a plurality of optical network elements, wherein the network route includes wavelengths between a first and second optical network element in the network. The network parameters include one or more of available wavelengths, available bandwidth, available regeneration points, available circuits, intermediate network elements, and combinations thereof.