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34 results about "Provider Backbone Bridge Traffic Engineering" patented technology
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Provider Backbone Bridge Traffic Engineering (PBB-TE) is an approved telecommunications networking standard, IEEE 802.1Qay-2009. PBB-TE adapts Ethernet technology to carrier class transport networks. It is based on the layered VLAN tags and MAC-in-MAC encapsulation defined in IEEE 802.1ah (Provider Backbone Bridges (PBB)), but it differs from PBB in eliminating flooding, dynamically created forwarding tables, and spanning tree protocols. Compared to PBB and its predecessors, PBB-TE behaves more predictably and its behavior can be more easily controlled by the network operator, at the expense of requiring up-front connection configuration at each bridge along a forwarding path. PBB-TE Operations, Administration, and Management (OAM) is usually based on IEEE 802.1ag. It was initially based on Nortel's Provider Backbone Transport (PBT).
Method and apparatus for supporting network communications using point-to-point and point-to-multipoint protocols
ActiveUS20100208593A1Error preventionFrequency-division multiplex detailsProvider Backbone Bridge Traffic EngineeringNetwork communication
Methods and apparatuses are disclosed for interworking a first protocol, e.g., Provider Backbone Bridge Traffic Engineering (PBB-TE), that provides Ethernet carrier-class traffic engineering, with a second protocol, e.g., Virtual Private LAN Service, that emulates local area network (LAN) service. Unicast, multicast, and broadcast transmissions are enabled across an Ethernet aggregation network and an MPLS core network. Dual homing protection and end-to-end traffic engineering with adjustable granularity are also provided. These capabilities are not available with traditional PBB-TE networks or with an interworking between PBB and VPLS that has been previously proposed. Embodiments of the invention terminate a PBB-TE tunnel at a user-facing provider edge (UPE) node and attach instance service identifiers (ISIDs) to different virtual switching instances (VSI)s. As a result, inexpensive Ethernet-only aggregation networks can be designed to interoperate with VPLS with increased reliability and control, benefiting service providers and end users.
Owner:TELLABS OPERATIONS
Layer 2 virtual private network over PBB-TE/PBT and seamless interworking with VPLS
ActiveUS20080247406A1Unbalanced current interference reductionData switching by path configurationPrivate networkProvider Backbone Bridge Traffic Engineering
A Layer 2 Virtual Private Network (L2VPN) system is provided. A Provider Backbone Bridge (PBB) network is provided which comprises a plurality of sites to be connected via a L2VPN. The plurality of sites in the PBB network is connected using a plurality of provider backbone trunks that includes a Provider Backbone Transport (PBT) trunk or a Provider Backbone Bridge Traffic Engineering (PBB-TE) trunk, such that the L2VPN includes the plurality of sites.
Owner:K MIZRA LLC
Method and apparatus for automatic topological discover and resource management in PBB TE network
InactiveCN101414963AImplement automatic topology discoveryImplement resourcesEnergy efficient ICTNetworks interconnectionTopology informationResource information
Owner:HUAWEI TECH CO LTD
System and method to provide multiple private networks using pbb/te
InactiveUS20110038382A1Improve service qualityAppropriate treatmentData switching by path configurationNetwork connectionsData streamPrivate network
A system and method are supplied to provide multiple private networks. The system can include a Provider Backbone Bridge Traffic Engineering (PBB / TE) interface or interfaces configured to receive a plurality of data stream types each associated with an Instance Service Identifier (I-SID) from a Metropolitan Area Network (MAN) or public carrier Ethernet. A plurality of local area network (LAN) ports can be configured to communicate data to a plurality of LANs. A switching process is provided between the PBB / TE interface and the LAN ports. The switching process can be configured to bind individual data stream types from subdivided data streams each represented by an I-SID to each of the respective LAN ports. In addition, the switching process can communicate packets between the PBB / TE interface and the bound LAN ports
Owner:ENTRYPOINT LLC
Method and apparatus for automatic topology discovery and resource management in PBB network
InactiveCN101453413ARealize the collectionStore-and-forward switching systemsTraffic capacityTopology information
The invention discloses a method for automatic topology discovery and resource information management in a Provider Backbone Bridging Traffic Engineering (PBB TE) network. A first network node constructs an Intermediate System to Intermediate System (IS-IS) Hello message containing network topology information or an IS-IS Link State Affirm (LSA) message containing resource information, and transmits the message in the PBB TE network; and a second network node receives the message and records the network topology information or the resource information in the message to a local network topology information database or a resource information database. The invention also discloses a PBB TE network node device. The proposal of the method can achieve the automatic topology discovery and the resource information management in the PBB TE network.
Owner:HUAWEI TECH CO LTD
Systems and methods for port mirroring with network-scoped connection-oriented sink
Systems and methods for sinking port mirrored data to any node in a network are provided. Moreover, the network is configured to convey the mirrored data to the sink, without the need for any facilities expressly dedicated for this purpose. The present invention removes the requirement to collocate the sink port within the same logical node. The present invention uses a mirrored flow configured as a provisioned layer two point-to-point connection, such as a Switched Permanent Virtual Circuit (SPVC), Pseudo-Wire (PWE3), a Virtual Local Area Network (VLAN) cross-connect, Provider Backbone Bridging-Traffic Engineering (PBB-TE), or the like. The provisioned point-to-point connection is configured between the mirrored port to a sink port. The node with the mirrored port is configured to create copies of the appropriate set of packets (i.e. ingress or egress packets or both based on provisioning), and to forward the packets to the sink port.
Owner:CIENA
Method and apparatus for supporting network communications using point-to-point and point-to-multipoint protocols
ActiveUS8059549B2Error preventionFrequency-division multiplex detailsProvider Backbone Bridge Traffic EngineeringNetwork communication
Methods and apparatuses are disclosed for interworking a first protocol, e.g., Provider Backbone Bridge Traffic Engineering (PBB-TE), that provides Ethernet carrier-class traffic engineering, with a second protocol, e.g., Virtual Private LAN Service, that emulates local area network (LAN) service. Unicast, multicast, and broadcast transmissions are enabled across an Ethernet aggregation network and an MPLS core network. Dual homing protection and end-to-end traffic engineering with adjustable granularity are also provided. These capabilities are not available with traditional PBB-TE networks or with an interworking between PBB and VPLS that has been previously proposed. Embodiments of the invention terminate a PBB-TE tunnel at a user-facing provider edge (UPE) node and attach instance service identifiers (ISIDs) to different virtual switching instances (VSI)s. As a result, inexpensive Ethernet-only aggregation networks can be designed to interoperate with VPLS with increased reliability and control, benefiting service providers and end users.
Owner:TELLABS OPERATIONS
Layer 2 virtual private network over PBB-TE/PBT and seamless interworking with VPLS
ActiveUS8018880B2Unbalanced current interference reductionData switching by path configurationPrivate networkProvider Backbone Bridge Traffic Engineering
A Layer 2 Virtual Private Network (L2VPN) system is provided. A Provider Backbone Bridge (PBB) network is provided which comprises a plurality of sites to be connected via a L2VPN. The plurality of sites in the PBB network is connected using a plurality of provider backbone trunks that includes a Provider Backbone Transport (PBT) trunk or a Provider Backbone Bridge Traffic Engineering (PBB-TE) trunk, such that the L2VPN includes the plurality of sites.
Owner:K MIZRA LLC
Method and device for protecting Ethernet tunnel
InactiveCN102025585AQuick protectionImprove robustnessNetworks interconnectionProvider Backbone Bridge Traffic EngineeringEthernet
The invention discloses a method for protecting an Ethernet tunnel. More than one protective entity is provided for a working entity in an Ethernet protective domain, and the working entity and the protective entity have the same two endpoint bridges. The method comprises the following steps of: when one endpoint bridge detects the fault of the working entity, switching the protected tunnel on the working entity to the protective entity, namely modifying the output port of a forwarding item of the protected tunnel associated with the port of the working entity into the port of the selected protective entity, and informing the other endpoint bridge of port switching. The invention discloses a device for protecting the Ethernet tunnel at the same time. The method and the device can well realize quick protection of transfer of electrostatic images (TESI), enhance the robustness of a provider backbone bridge-traffic engineering (PBB-TE) network, and improve the performance of the network.
Owner:ZTE CORP
Protection for provider backbone bridge traffic engineering
InactiveUS20110164493A1Easy to useImprove protectionError preventionTransmission systemsTraffic volumeProvider Backbone Bridge Traffic Engineering
Network protection between endpoints includes both end-to-end and local section protection. A primary path between the endpoints includes a plurality of links, and is protected on an end-to-end basis by a protection path associated with different links. At least one sections of the primary path is also protected on a local basis, where a “section” is a link, ring, trunk or other portion of a network. One or more sections of the protection path may also be protected on a local basis. In response to detection of a fault condition, section protection is utilized to overcome the fault if possible, and otherwise end-to-end protection is utilized. Invoking section protection does not imply a switchover from the primary end-to-end path to the protection end-to-end path. Rather, the primary end-to-end path is rerouted in the affected section.
Owner:RPX CLEARINGHOUSE
Data stream transmission method based on PBB-TE sectional tunnel, and node
InactiveCN102104523AEasy maintenanceImprove performanceNetworks interconnectionTraffic capacityData stream
The invention provides a data stream transmission method based on a provider backbone bridge traffic engineering (PBB-TE) sectional tunnel, and a node. The method comprises the following steps of: configuring a PBB-TE which supports traffic engineering and a PBB-TE tunnel which supports the traffic engineering according to the difference between a node type and a link type; and transmitting a received message according to the configured PBB-TE tunnel. By the tunnel configuration method and the message transmission method, the system can conveniently maintain the tunnel maintenance, so the fault coupling among different rings is reduced, and the property of the Etheric multi-ring network is enhanced greatly.
Owner:ZTE CORP
Method and apparatus for automatic topology discovery and resource management in PBB network
InactiveCN101453412ARealize the collectionNetworks interconnectionTraffic capacityTopology information
The invention discloses a method for automatic topology discovery and resource information management in a Provider Backbone Bridging Traffic Engineering (PBB TE) network, which comprises the following steps: constructing an Open Shortest Path First (OSPF) Hello message containing network topology information or an OSPF protocol Link State Affirm (LSA) message containing resource information, and transmitting the message to other nodes in the network by a first network node; and receiving the message and recording the network topology information or the resource information in the message into a local network topology information database or a resource information database by a second network node. The invention also discloses a PBB TE network node device. The proposal of the method can achieve the automatic topology discovery and the resource information management in the PBB TE network.
Owner:HUAWEI TECH CO LTD
Systems and methods for a self-healing carrier ethernet topology
Systems and methods for self-healing Ethernet topologies which are compatible with PBT, which use standards-based protocols, which do not self-configure, and which use Ethernet OAM are provided. Interconnected nodes are configured with a primary and secondary path which is determined by VLANs, MPLS label, Provider Backbone Bridge Traffic Engineering (PBB-TE) VLAN ID (VID), Frame Relay (FR), Asynchronous Transfer Mode (ATM) Virtual Circuits (VCs), and the like. One or more head-end nodes are designated for terminating each path and for performing cross-connects between the primary and secondary paths. IEEE 802.1ag Continuity Check Messages (CCM) are transmitted by all nodes on both the primary and secondary routes. Responsive to a loss of a predetermined number of CCM messages, traffic is switched to the secondary route. In non-fault conditions, both the paths for the primary and secondary routes can carry traffic.
Owner:CIENA
A method of detecting mismatch fault and maintenance terminal point
ActiveCN102291245AAvoid lossAvoid business interruptionError preventionData switching networksProvider Backbone Bridge Traffic EngineeringEngineering
The disclosure provides a method for detecting a mismatch fault and a Maintenance Endpoint (MEP). The method includes: determining whether there is a Traffic Engineering Service Instance (TESI) configured in a segment, setting a Present Traffic in Segment (PTS) variable, and setting a value of a PTS field included in a Connectivity Check Message (CCM) sent from a Maintenance Endpoint (MEP); receiving the CCM by the MEP, when the value of the PTS field included in the CCM does not coincide with that of the PTS variable, setting, by the MEP, a first mismatch fault indication variable mmCCMreceived to be set; when the first mismatch fault indication variable mmCCMreceived remains set after a first preset time period expires, detecting that a mismatch fault occurs. The method finds timely the mismatch problem occurred in the segment protection of Provider Backbone Bridging-Traffic Engineering (PBB-TE), thereby preventing data loss and service interruption caused by the occurrence of mismatch.
Owner:ZTE CORP
Method and apparatus for allocating backbone VLAN identifiers
InactiveUS20130028141A1Data switching by path configurationStore-and-forward switching systemsProvider Backbone Bridge Traffic EngineeringNetwork management
Methods and apparatuses for allocating backbone virtual local area network identifiers (BVIDs) to connection requests in a provider backbone bridging-traffic engineering (PBB-TE) network are described. During operation, a system (e.g., a network management system) can receive a set of connection requests for a set of connections that are desired to be set up in the PBB-TE network. Next, the system can allocate a BVID to each connection request in the set of connection requests so that, once the set of connection requests are set up in the PBB-TE network, conflicting connections in the PBB-TE network have different BVIDs.
Owner:INDIAN INSTITUTE OF TECHNOLOGY BOMBAY
Network protection method and network protection framework
InactiveCN101945001AIncrease profitImprove reliabilityError preventionNetworks interconnectionProtection domainSoftware engineering
The invention provides a network protection method and a network protection framework. Through a double-node protection mould of the invention, a part of networks needing to be protected on a provider backbone bridge traffic engineering (PBB-TE) tunnel which supports traffic engineering are provided with a protection domain consisting of a primary section and a standby section, so that a certain section and an end point bridge of a part of the PBB-TE tunnel are protected to the maximum extent. The PBB-TE segmented protection network framework provided by the invention realizes the partial segmented protection of the PBB-TE tunnel, protects a partial section needing to be protected and solves the problem that the entire Ethernet tunnel needs to be switched when a part fails. The method and the framework have the advantages of enhancing the utilization ratio and reliability of the network, achieving high flexibility on the protection of networking implementation and meeting common requirements during practical networking.
Owner:ZTE CORP
Method and system for transmitting connectivity fault management messages in ethernet, and a node device
A method for transmitting a Connectivity Fault Management (CFM) message of Ethernet includes: receiving a CFM message transmitted from a source node, the CFM message including identifier of a path and a connection maintenance target address; determining whether the connection maintenance target address matches address of a receiving node, and if yes, terminating the CFM message; otherwise forwarding the CFM message to a next hop based upon the path identifier of the path. Another method and a system for transmitting a CFM message of Ethernet, a node for transmitting a CFM message of Ethernet, and a node for receiving a CFM message of Ethernet are also disclosed. With the invention, a CFM message may be forwarded according to information of a Medium Access Control (MAC) address and a Virtual Local Area Network Identifier (VLAN ID) of a path identifier where a monitored service is located, and thus may be forwarded correctly in a Provider Backbone Bridge Traffic Engineering (PBB-TE) network.
Owner:HUAWEI TECH CO LTD
Systems and methods for flow mirroring with network-scoped connection-oriented sink
ActiveUS8711713B2Reduce bandwidth requirementsError preventionFrequency-division multiplex detailsVirtual LANCross connection
Systems and methods for sinking port mirrored from one or more identified flows of data to any node in a network are provided. Moreover, the network is configured to convey the mirrored data to the sink, without the need for any facilities expressly dedicated for this purpose. The present invention removes the requirement to co-locate the sink port within the same logical node. The present invention uses a mirrored flow configured as a provisioned layer two point-to-point connection, such as a Switched Permanent Virtual Circuit (SPVC), Pseudo-Wire (PWE3), a Virtual Local Area Network (VLAN) cross-connect, Provider Backbone Bridging-Traffic Engineering (PBB-TE), and the like. The node with the mirrored port is configured to create copies of the appropriate set of packets (i.e., ingress, egress packets, or both based on provisioning and based on the identified flow), and to forward the packets to the sink port through the provisioned point-to-point connection.
Owner:CIENA
Method and apparatus for allocating backbone VLAN identifiers
InactiveUS8787208B2Data switching by path configurationStore-and-forward switching systemsVirtual LANProvider Backbone Bridge Traffic Engineering
Methods and apparatuses for allocating backbone virtual local area network identifiers (BVIDs) to connection requests in a provider backbone bridging-traffic engineering (PBB-TE) network are described. During operation, a system (e.g., a network management system) can receive a set of connection requests for a set of connections that are desired to be set up in the PBB-TE network. Next, the system can allocate a BVID to each connection request in the set of connection requests so that, once the set of connection requests are set up in the PBB-TE network, conflicting connections in the PBB-TE network have different BVIDs.
Owner:INDIAN INSTITUTE OF TECHNOLOGY BOMBAY
System and method for ethernet protection switching in a provider backbone bridging traffic engineering domain
ActiveUS20120207014A1Simplified and efficientError preventionFrequency-division multiplex detailsAccess networkTraffic capacity
A method of providing protection switching on a backbone network includes configuring a service instance table for a first port of a first bridge. The service instance table includes a Virtual Local Access Network (VLAN) identifier entry for one or more service instances. The method also includes mapping data traffic received at the first bridge onto a first trunk by setting a VLAN identifier entry for a first service instance and transmitting data traffic to a second bridge on the first trunk in accordance with the mapping and monitoring the first trunk for faults by exchanging continuity check messages with the second bridge over the first trunk. The method additionally includes, upon detecting a fault, remapping data traffic for the first service instance by changing the VLAN identifier entry for the first service instance and transmitting data traffic to the second bridge in accordance with the remapping.
Owner:TELEFON AB LM ERICSSON (PUBL)
Local protection method of ethernet tunnel and sharing node of work sections of protection domain
InactiveUS8738960B2Improve system stabilityError detection/correctionTransmissionProtection domainProvider Backbone Bridge Traffic Engineering
The invention discloses a segment protection method for an Ethernet tunnel, there are two segment protection domains with a shared link in a Provider Backbone Bridge-Traffic Engineering (PBB-TE) network, and at least one of the two segment protection domains works in a non-revertive mode, and when a simultaneous failures of working segments of two segment protection domains recover or a failure of the shared node of the working segments recovers, the shared node of the working segments switches all the FDB entries of bidirectional ESPs of all the TESIs protected by the protection domains to standby entries, and after switching, out ports of the FDB entries of the ESPs are the ports connecting the shared segment. The invention also discloses a shared node of working segments of protection domains correspondingly. The invention is able to ensure that the bidirectional ESPs are co-routed after the failure recovering.
Owner:ZTE CORP
System and method for ethernet protection switching in a provider backbone bridging traffic engineering domain
ActiveUS8441921B2Simplified and efficientError preventionTransmission systemsAccess networkTraffic capacity
A method of providing protection switching on a backbone network includes configuring a service instance table for a first port of a first bridge. The service instance table includes a Virtual Local Access Network (VLAN) identifier entry for one or more service instances. The method also includes mapping data traffic received at the first bridge onto a first trunk by setting a VLAN identifier entry for a first service instance and transmitting data traffic to a second bridge on the first trunk in accordance with the mapping and monitoring the first trunk for faults by exchanging continuity check messages with the second bridge over the first trunk. The method additionally includes, upon detecting a fault, remapping data traffic for the first service instance by changing the VLAN identifier entry for the first service instance and transmitting data traffic to the second bridge in accordance with the remapping.
Owner:TELEFON AB LM ERICSSON (PUBL)
Method and apparatus for automatic topology discovery and resource management in PBB network
InactiveCN101453412BRealize the collectionNetworks interconnectionResource informationProvider Backbone Bridge Traffic Engineering
The invention discloses a method for automatic topology discovery and resource information management in a Provider Backbone Bridging Traffic Engineering (PBB TE) network, which comprises the following steps: constructing an Open Shortest Path First (OSPF) Hello message containing network topology information or an OSPF protocol Link State Affirm (LSA) message containing resource information, andtransmitting the message to other nodes in the network by a first network node; and receiving the message and recording the network topology information or the resource information in the message into a local network topology information database or a resource information database by a second network node. The invention also discloses a PBB TE network node device. The proposal of the method can achieve the automatic topology discovery and the resource information management in the PBB TE network.
Owner:HUAWEI TECH CO LTD
Data stream transmission method based on PBB-TE sectional tunnel, and node
InactiveCN102104523BEasy maintenanceImprove performanceNetworks interconnectionTraffic capacityData stream
Owner:ZTE CORP
Local Protection Method of Ethernet Tunnel and Sharing Node of Work Sections of Protection Domain
InactiveUS20120297239A1Improve system stabilityTransmissionRedundant hardware error correctionProtection domainProvider Backbone Bridge Traffic Engineering
The invention discloses a segment protection method for an Ethernet tunnel, there are two segment protection domains with a shared link in a Provider Backbone Bridge-Traffic Engineering (PBB-TE) network, and at least one of the two segment protection domains works in a non-revertive mode, and when a simultaneous failures of working segments of two segment protection domains recover or a failure of the shared node of the working segments recovers, the shared node of the working segments switches all the FDB entries of bidirectional ESPs of all the TESIs protected by the protection domains to standby entries, and after switching, out ports of the FDB entries of the ESPs are the ports connecting the shared segment. The invention also discloses a shared node of working segments of protection domains correspondingly. The invention is able to ensure that the bidirectional ESPs are co-routed after the failure recovering.
Owner:ZTE CORP
Systems and methods for port mirroring with network-scoped connection-oriented sink
ActiveUS8711852B2Data switching by path configurationElectric digital data processingVirtual LANPort mirroring
Owner:CIENA
Network protection method and network protection architecture
ActiveCN101883040BEasy to optimizeGuaranteed reliabilityNetworks interconnectionTraffic capacityProvider Backbone Bridge Traffic Engineering
Owner:SUZHOU XINENG ENVIRONMENTAL SCI & TECH CO LTD +1
A system and method of demultiplexing provider backbone bridging traffic engineering instances
ActiveCN101960790ANetworks interconnectionWide area networksProvider Backbone Bridge Traffic EngineeringDistributed computing
A system and method of demultiplexing Provider Backbone Bridging Traffic Engineering, PBB-TE, service instances. The method is used when monitoring service instances (500) between a first bridge port and a second bridge port by exchanging CFM frames over each service instance. The CFM frame is received by the second bridge port where the complete ESP - 3-tuple is demultiplexed (504). The CCM frames may be.demultiplexed by a Full Traffic Engineering Service Instance Multiplex Entity which demultiplexes both the source address value and destination address value of the CCM frames.
Owner:TELEFON AB LM ERICSSON (PUBL)
A method for detecting a mismatch fault and a maintenance terminal point
ActiveCN102291245BAvoid lossAvoid business interruptionError preventionData switching networksProvider Backbone Bridge Traffic EngineeringEngineering
The disclosure provides a method for detecting a mismatch fault and a Maintenance Endpoint (MEP). The method includes: determining whether there is a Traffic Engineering Service Instance (TESI) configured in a segment, setting a Present Traffic in Segment (PTS) variable, and setting a value of a PTS field included in a Connectivity Check Message (CCM) sent from a Maintenance Endpoint (MEP); receiving the CCM by the MEP, when the value of the PTS field included in the CCM does not coincide with that of the PTS variable, setting, by the MEP, a first mismatch fault indication variable mmCCMreceived to be set; when the first mismatch fault indication variable mmCCMreceived remains set after a first preset time period expires, detecting that a mismatch fault occurs. The method finds timely the mismatch problem occurred in the segment protection of Provider Backbone Bridging-Traffic Engineering (PBB-TE), thereby preventing data loss and service interruption caused by the occurrence of mismatch.
Owner:ZTE CORP
Signalling control method, system and apparatus
The invention discloses a method, a system and device for signaling control. The method comprises the steps that: a destination MAC address of a local backbone network and VLAN ID of the backbone network are configured and added into a local topology table; the destination MAC address of the local backbone network and the VLAN ID of the backbone network are transmitted to an adjacent device by a multiprotocol border gateway protocol (MP-BGP) and the destination MAC address of the local backbone network and the VLAN ID of the backbone network sent by the adjacent device by the MP-BGP are received and stored in the local topology table; a provider backbone bridge-traffic engineering (PBB-TE) tunnel is established according to information in the local topology table. In the embodiment of theinvention, the PBB-TE tunnel is dynamically established according to the information carried by the MP-BGP and a new tunnel can be automatically generated in a convergent manner when a link circuit fails; when network topologies change, for example, new nodes are added, nodes relevant to the new nodes can automatically update without need of manual configuration.
Owner:HUAWEI TECH CO LTD
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