Abstract: Embodiments of the present invention provide a pseudowire setup method and a node device. The method includes: receiving, by a node, a label mapping message which carries a bandwidth required by a service and a service level of the service; judging, by the node, whether the LSP in which the node is located supports the service level of the service and the bandwidth of the service, according to bandwidth supporting information, which is stored in the node, of a Label Switching Path (LSP) in which the node is located, and the bandwidth required by the service and the service level of the service which are carried in the label mapping message; and using the LSP as an LSP which bears a pseudowire when judging that the LSP supports the service level of the service and the bandwidth of the service. In this way, the Quality of Service (QoS) of the established pseudowire is ensured.

Abstract: A ring network protection method is provided. A first node sends a protection switching request on a link protection tunnel of a link between the first node and a second node and on a node protection tunnel of the second node when a fault occurs in a ring network. A protection switching response is received on the link protection tunnel of the link between the first node and the second node, or the node protection tunnel of the second node. Services are switched to the protection tunnel where the protection switching request is received.

Abstract: A ring network protection method is disclosed. When a fault occurs in a ring network, a first node selects a protection tunnel according to a fault condition of a pre-established protection tunnel. Services are switched to the selected protection tunnel. A protection switching request is sent on the selected protection tunnel and another end node is informed of the selected protection tunnel to switch the services to the selected protection tunnel.

Abstract: Embodiments of the present invention disclose an Ethernet ring protection switching method, node, and system. In an Ethernet ring protection switching method is disclosed, it is determined whether the current link is a lower-bandwidth link according to bandwidth information of a current link and bandwidth information of another link on a ring. If the current link is a lower-bandwidth link, a port corresponding to the current link is blocked.

Abstract: A ring network protection method, a network node and a ring network are provided. The ring network protection method includes: receiving, by a network node, a ring network protection switching request message sent by a node that detects a fault when the fault occurs in the ring network, where the ring network protection switching request message carries source and destination node information of the ring network protection switching request message; and determining a fault location according to the source and destination node information, selecting a protection tunnel according to the determined fault location, and switching services to the selected protection tunnel, where the selected protection tunnel is a link protection tunnel of a link between the network node and a source node, or a node protection tunnel of an intermediate node on a short way between the network node and the source node.

Abstract: An embodiment of the present invention discloses a full-duplex communication apparatus, including at least one transmit antenna and at least one signal synthesizing apparatus, where the signal synthesizing apparatus is connected to at least two receive antennas, the at least one transmit antenna is configured to transmit a first transmit signal, the at least two receive antennas are configured to separately receive the first transmit signal, and the signal synthesizing apparatus is configured to receive the first transmit signal from the at least two receive antennas, where a phase difference exists between the received first transmit signals, and synthesize the received first transmit signals, where strength of the synthesized first transmit signal is lower than strength of at least one of the first transmit signals received by the signal synthesizing apparatus.

Abstract: The embodiments of the present invention relate to the field of microwave communication technologies, and disclose a method, an apparatus, and a system for scheduling a service on a microwave link. In order to overcome the problem that the data unit of the TDM service and the data unit of the packet service cannot be scheduled uniformly in the prior art, the method for scheduling a service on a microwave link provided in the embodiments of the present invention includes: receiving a radio transport unit that carries at least one radio data unit, where the radio data unit carries priority information; and scheduling the radio data unit according to the priority information of the radio data unit. The present invention enables uniform scheduling of the data unit of the TDM service and the data unit of the packet service.

Abstract: A switch mode power supply having an output terminal configured to provide an output voltage, the switch mode power supply has a first switch and a control circuit. The control circuit is configured to provide a switching control signal to control the first switch. The control circuit is configured to provide the switching control signal based on a first pulse signal having a first frequency and a second frequency for a light load condition, and the control circuit is configured to provide the switching control signal based on a second pulse signal for a non-light load condition.

Abstract: A method, a device and a system for interconnecting a multi-protocol label switching (MPLS) network and an Ethernet are provided. A packet sent by a node located at the Ethernet is received, the packet is parsed, the parsed packet is re-encapsulated by means of MPLS, and the re-encapsulated packet is sent to a node located at the MPLS network, so as to implement interconnection between the MPLS network and the Ethernet. A reverse solution is similar to this. An intermediate node in the solution adopts a manner of parsing a packet and then re-encapsulating the packet when the packet is sent from one network to another network, instead of transparent transmission only. Therefore, it is unnecessary to configure a Media Access Control (MAC) address of a remote node on a node located at the Ethernet and to configure Ethernet information on a node located at the MPLS network.

Abstract: A method, node device, and system are disclosed for establishing a label switched path, which belong to the field of communications technologies. The method includes: receiving a connection establishment request message sent by a source node to a sink node, where the connection establishment request message carries bandwidth request information corresponding to different conditions, and each of the bandwidth request information corresponds to one condition; and reserving, according to the bandwidth request information corresponding to the different conditions, a corresponding bandwidth resource in subsidiary remaining bandwidth corresponding to the different conditions on a local link, thereby establishing a connection between the source node and the sink node.

Abstract: The present invention discloses a method, an apparatus, and a system for transmitting data. A method for sending data includes: categorizing a received packet based on field information of a preset field in a packet header; encapsulating, for each category of packets, field information of a preset field in a packet header of a packet to an overhead field of a data unit, and encapsulating a packet payload of each packet and field information of another field except the preset field in a packet header of each packet to a payload field of the data unit; and sending the generated data unit to a destination node of the packet. The method, the apparatus, and the system are capable of improving bandwidth usage of a transmission link.

Abstract: Embodiments of the present disclosure provide an Ethernet ring protection switching method, network device and system. In the embodiments of the present disclosure, a node obtains bandwidth information of a first link on an Ethernet ring on which the node is located, and determines that bandwidth of the first link changes, where there is at least one Ethernet ring protection instance on the Ethernet ring, and then the node determines ports of the node, where the at least one Ethernet ring protection instance passes through the ports, so that the node can query pre-configured correspondence between bandwidth information and switching information of each link on the Ethernet ring, and execute, through the ports of the node, a switching operation corresponding to the bandwidth information of the first link.

Abstract: A method and a network device for realizing shared mesh protection are provided. The method includes the following steps. If a status change of a working label switching path (LSP) is detected, routing information and bandwidth information about the working LSP are notified to every node on a protection LSP corresponding to the working LSP. Every node on the protection LSP calculates a maximal reserved bandwidth of a link based on the received routing information and bandwidth information and adjusts a shared protection bandwidth of the link according to the maximal reserved bandwidth.

Abstract: 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.

Abstract: The present invention discloses a method, an apparatus, and a system for transmitting data. A method for sending data includes: categorizing a received packet based on field information of a preset field in a packet header; encapsulating, for each category of packets, field information of a preset field in a packet header of a packet to an overhead field of a data unit, and encapsulating a packet payload of each packet and field information of another field except the preset field in a packet header of each packet to a payload field of the data unit; and sending the generated data unit to a destination node of the packet. The method, the apparatus, and the system are capable of improving bandwidth usage of a transmission link.

Abstract: A method for configuring operation, administration and maintenance (OAM) properties, a system for configuring OAM properties, and a node device are provided. The method includes: delivering a message carrying OAM property configuration indicating information; and flowing through a plurality of nodes to be configured in the process of delivering the message, and configuring, by each of the nodes to be configured, an OAM property of the present node according to the OAM property configuration indicating information in the message flowing through the present node.

Abstract: Embodiments of the present invention provide a pseudowire setup method and a node device. The method includes: receiving, by a node, a label mapping message which carries a bandwidth required by a service and a service level of the service; judging, by the node, whether the LSP in which the node is located supports the service level of the service and the bandwidth of the service, according to bandwidth supporting information, which is stored in the node, of a Label Switching Path (LSP) in which the node is located, and the bandwidth required by the service and the service level of the service which are carried in the label mapping message; and using the LSP as an LSP which bears a pseudowire when judging that the LSP supports the service level of the service and the bandwidth of the service. In this way, the Quality of Service (QoS) of the established pseudowire is ensured.

Abstract: Embodiments of the present invention provide an automatic protection switching method, device and system. The method includes: determining a part of services as to-be-switched service(s) according to change of bandwidth when monitoring that the bandwidth of the first transmission path changes; and switching the to-be-switched service(s) between links on the second transmission path and the first transmission path. Another method includes: receiving a partial switching message from a peer network edge node through the first transmission path or the second transmission path; and determining the to-be-switched service(s) according to indication information about the to-be-switched service(s) or bandwidth change information in the partial switching message, and switching the to-be-switched service(s) between links on the first transmission path and the second transmission path.

Abstract: The present invention relates to the field of communication technologies, and discloses a method for notifying bandwidth information, a method for processing a service, a network node, and a communication system. The method for notifying bandwidth information includes: obtaining current link bandwidth information of a microwave link; determining, according to a mapping relationship between link bandwidth information and service bandwidth information, corresponding to the current link bandwidth information, service bandwidth information that is allocated to a service connection on which the microwave link is located; and transmitting the allocated service bandwidth information to an endpoint of the service connection through the service connection, so that the endpoint of the service connection adjusts a service policy according to the allocated service bandwidth information.

Abstract: The embodiments of the present invention relate to the field of microwave communication technologies, and disclose a method, an apparatus, and a system for scheduling a service on a microwave link. In order to overcome the problem that the data unit of the TDM service and the data unit of the packet service cannot be scheduled uniformly in the prior art, the method for scheduling a service on a microwave link provided in the embodiments of the present invention includes: receiving a radio transport unit that carries at least one radio data unit, where the radio data unit carries priority information; and scheduling the radio data unit according to the priority information of the radio data unit. The present invention enables uniform scheduling of the data unit of the TDM service and the data unit of the packet service.