Configuring, binding method, device, equipment, transmitting, receiving node and medium

Abstract

The application provides a configuration and binding method, device, equipment, transmitting and receiving nodes and media. The method determines a multiplexing structure of an optical layer channel; and configures channel identification information for a target node according to the multiplexing structure, the channel identification information being used to instruct the target node to bind the optical layer channel.

Description

TECHNICAL FIELD

[0001] The present application relates to optical fiber communication, for example, to a configuration, binding method, device, equipment, sending node, receiving node and medium. BACKGROUND

[0002] Optical fiber communication has the characteristics of high bandwidth, long transmission distance, low loss, etc., has been deployed on a large scale, and electrical layer customer signal streams can be multiplexed into optical layer signals for transmission. A completely standardized optical transport unit-Cn (OTUCn) signal can be divided into multiple flexible optical transport network (FlexO) physical channels, each FlexO physical channel can be further divided into multiple sub-channels, each sub-channel is transmitted through a separate optical time slot interchanger (OTSi) signal, corresponds to a single physical interface, and the wavelength center frequency of the OTSi signal used in the optical transport network (OTN) interface standard is the same. However, the optical medium layer multiplexing standard does not involve sub-channels and the correspondence between sub-channels and physical interfaces, and the composition of the overhead information of the optical medium layer is not suitable for the FlexO signal format defined in the OTN interface standard, and cannot distinguish between different OTSi signals and cannot provide sufficient information to support the multiplexing and demultiplexing of OTUCn signals. Due to the inability to effectively configure the multiplexing of the optical layer channel, the binding or creation of the optical layer path cannot be accurately implemented, and the reliability of the multiplexing of the optical layer channel is low. SUMMARY

[0003] The present application provides a configuration, binding method, device, equipment, sending node, receiving node and medium to improve the reliability of the multiplexing of the optical layer channel.

[0004] The present application provides a configuration method, including:

[0005] Determine the multiplexing structure of the optical layer channel;

[0006] According to the multiplexing structure, configure channel identification information for the target node, and the channel identification information is used to instruct the target node to bind the optical layer channel.

[0007] The present application also provides a binding method applied to a sending node, including:

[0008] Obtain channel identification information;

[0009] Bind the local optical layer channel according to the channel identification information.

[0010] encapsulate the channel identification information in a header overhead, and send the header overhead to a receiving node, the header overhead being used to instruct the receiving node to bind an optical layer channel.

[0011] The embodiment of the present application further provides a binding method, which is applied to a receiving node and comprises the following steps:

[0012] receiving a header overhead;

[0013] determining channel identification information according to the header overhead;

[0014] binding a local optical layer channel according to the channel identification information in the case that the channel identification information is verified.

[0015] The embodiment of the present application further provides a binding method, which is applied to a target node, the target node comprising a sending node and a receiving node, and the method comprises the following steps:

[0016] obtaining channel identification information;

[0017] binding a local optical layer channel according to the channel identification information.

[0018] The embodiment of the present application further provides a configuration device, which comprises:

[0019] a structure determining module configured to determine a multiplexing structure of an optical layer channel;

[0020] a configuration module configured to configure channel identification information for a target node according to the multiplexing structure, the channel identification information being used to instruct the target node to bind an optical layer channel.

[0021] The embodiment of the present application further provides a binding device, which comprises:

[0022] a first obtaining module configured to obtain channel identification information;

[0023] a first binding module configured to bind a local optical layer channel according to the channel identification information;

[0024] an overhead sending module configured to encapsulate the channel identification information in a header overhead, and send the header overhead to a receiving node, the header overhead being used to instruct the receiving node to bind an optical layer channel.

[0025] The embodiment of the present application further provides a binding device, which comprises:

[0026] an overhead receiving module configured to receive a header overhead;

[0027] an identification determining module configured to determine channel identification information according to the header overhead;

[0028] a second binding module, configured to bind a local optical layer channel according to the channel identification information when the channel identification information is verified.

[0029] The embodiment of the present application further provides a binding device, comprising:

[0030] a second obtaining module, configured to obtain channel identification information;

[0031] a third binding module, configured to bind a local optical layer channel according to the channel identification information.

[0032] The embodiment of the present application further provides a device, comprising:

[0033] one or more processors;

[0034] a storage device, configured to store one or more programs;

[0035] When the one or more programs are executed by the one or more processors, the one or more processors implement the configuration method described above.

[0036] The embodiment of the present application further provides a sending node, comprising:

[0037] one or more processors;

[0038] a storage device, configured to store one or more programs;

[0039] When the one or more programs are executed by the one or more processors, the one or more processors implement the configuration method described above.

[0040] The embodiment of the present application further provides a receiving node, comprising:

[0041] one or more processors;

[0042] a storage device, configured to store one or more programs;

[0043] When the one or more programs are executed by the one or more processors, the one or more processors implement the configuration method described above.

[0044] The embodiment of the present application further provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and the program is executed by a processor to implement the configuration method or the binding method described above. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 a flow chart of a configuration method provided by an embodiment;

[0046] Figure 2 A schematic diagram of optical layer channel multiplexing is provided for an embodiment;

[0047] Figure 3 An implementation schematic diagram of a configuration method in an overhead channel scenario is provided for an embodiment;

[0048] Figure 4 An implementation schematic diagram of a configuration method in an overhead channel scenario is provided for an embodiment;

[0049] Figure 5 A flow chart of a binding method is provided for an embodiment;

[0050] Figure 6 A flow chart of a binding method is provided for another embodiment;

[0051] Figure 7 A flow chart of a binding method is provided for yet another embodiment;

[0052] Figure 8 A structural schematic diagram of a configuration apparatus is provided for an embodiment;

[0053] Figure 9 A structural schematic diagram of a binding apparatus is provided for an embodiment;

[0054] Figure 10 A structural schematic diagram of a binding apparatus is provided for another embodiment;

[0055] Figure 11 A structural schematic diagram of a binding apparatus is provided for yet another embodiment;

[0056] Figure 12 A hardware structural schematic diagram of an apparatus is provided for an embodiment;

[0057] Figure 13 A hardware structural schematic diagram of a sending node is provided for an embodiment;

[0058] Figure 14 A hardware structural schematic diagram of a receiving node is provided for an embodiment. DETAILED DESCRIPTION

[0059] The present application will be described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict. In addition, it should be noted that only the parts related to the present application are shown in the drawings for convenience of description, rather than all the structures.

[0060] In the process of mapping the client signal to the optical media layer transmission, the optical media layer multiplexing standard does not involve the sub-channels of the optical layer channel and the correspondence between the sub-channels and the physical interface, the header overhead information composition mode of the optical media layer is not applicable to the FlexO signal format defined by the OTN interface standard, and it is unable to distinguish different OTSi signals respectively encapsulated, and it is unable to provide sufficient information to support the multiplexing and demultiplexing of the OTUCn signal, and therefore, the binding of the optical channel or the creation of the optical layer path cannot be accurately implemented, and the multiplexing reliability of the optical layer channel is low.

[0061] In the embodiments of the present application, a configuration method is provided, which can be applied to a network management device, a controller and the like, and a target node is, for example, a router, a converter, a switch and the like. The target node can be a sending node in the scenario of having an overhead channel, and can be a sending node and a receiving node in the scenario of not having an overhead channel. The following embodiments are described by taking the network management device as an example. The network management device configures the channel identification information for the target node, accurately binds the optical layer channel, and further provides a basis for the correct multiplexing and demultiplexing of the client signal.

[0062] Figure 1 A flowchart of a configuration method provided by an embodiment is shown in FIG. 1. Figure 1 The method provided by the embodiment includes steps 110 and 120.

[0063] In step 110, the multiplexing structure of the optical layer channel is determined.

[0064] In the embodiment, the network management device can determine the correspondence between the sub-channels of the optical layer channel and the physical interface according to the multiplexing structure of the optical layer channel, and accordingly configure the channel identification information to instruct the target node to bind the optical layer channel, and implement the multiplexing of the optical layer channel of the corresponding structure.

[0065] Figure 2 A schematic diagram of the multiplexing of the optical layer channel provided by an embodiment is shown in FIG. 2. Figure 2As shown, the electrical layer client signal stream is multiplexed into the optical layer signal to realize signal transmission. The single digital information stream, as a single client, is input into a Digital-Lane / Digital-Client adaptation module, and after processing by the adaptation module, a plurality of digital lane signals OTSi are output, which constitute an optical tributary signal group (OTSiG). Each OTSi is input into a corresponding OTSi modulator. An optical tributary signal group overhead (OTSiG-O) is also output, which carries information about the composition of the OTSi signals in the OTSiG. On this basis, the OTSiG and the OTSiG-O constitute an optical tributary signal assembly (OTSiA). Each client signal, such as an optical transport unit-Cn (OTUCn) signal, can be divided into m FlexO physical lanes, and each FlexO physical lane can be further divided into k sub-physical lanes. Each sub-physical lane is modulated into a separate OTSi signal for transmission. Each OTSi occupies a single optical fiber link and corresponds to a single physical interface.

[0066] In step 120, channel identification information is configured for the target node according to the multiplexing structure, and the channel identification information is used to instruct the target node to bind the optical layer channel.

[0067] In this embodiment, the channel identification information is configured for the target node, and the multiplexing structure is instructed to provide a basis for binding the optical layer channel and establishing the optical layer path. The configured channel identification information can be transmitted through the overhead of the optical communication network or can be issued through a centralized control southbound interface protocol, so that the target node finally completes the multiplexing and demultiplexing of the client signal. In the scenario of an overhead channel, the target node can refer to a sending node in the optical communication network. After the sending node receives the channel identification information, on one hand, the sending node binds the local optical layer channel according to the channel identification information, and on the other hand, the sending node can also send the channel identification information to the corresponding remote receiving node, so that the receiving node can also complete the binding of the optical layer channel. In the scenario of a non-overhead channel, the target node can also include a sending node and a receiving node in the optical communication network. That is, the network management device configures and issues the channel identification information for the sending node and the receiving node, respectively, and the sending node and the receiving node respectively bind the optical layer channel based on the channel identification information issued by the network management device.

[0068] The configuration method of the embodiment configures the channel identification information for the target node, effectively configures multiplexing of the optical layer channel, thereby realizing accurate binding of the optical layer channel, and further providing a basis for correct multiplexing and demultiplexing of the client signal.

[0069] In an embodiment, the target node comprises a sending node; the sending node and the corresponding receiving node have an overhead channel for transmitting the channel identification information.

[0070] The embodiment is for a scenario with an overhead channel. The overhead signal OTSiG-O is transmitted through a special overhead channel, the overhead signal includes all OTSi information constituting the OTSiG, and channel information used by the OTSi. The optical module of the Ethernet can be continued to be used, wherein each OTSi occupies a separate fiber link, the transmitter and the receiver of the OTSi are not usually adjustable, and a fixed frequency optical signal is used. The channel identification information can be used to identify the optical signal in the overhead channel.

[0071] Figure 3 An implementation schematic diagram of a configuration method in the scenario with the overhead channel is provided for an embodiment. As shown in the figure, the target node is a sending node, and the channel identification information configured by the network management device is transmitted to the sending node in the overhead channel. The sending node realizes binding of the local optical layer channel on the basis of the channel identification information, and further transmits the channel identification information to the corresponding remote receiving node, so that the receiving node can also complete binding of the optical layer channel. Figure 3

[0072] In an embodiment, the channel identification information comprises the following information of the sending node: a local identifier of an optical layer adaptation interface; a number of channels contained by the optical layer; a local identifier of the channel; a number of sub-channels contained by the channel; a local identifier of the sub-channel; and a remote local identifier of the sub-channel.

[0073] In the embodiment, in the overhead channel, the OTSiG-O carries identification information of the channels and the physical interfaces of the sub-channels constituting the OTSiG, and carries the local identifier and the remote local identifier of the sub-channel. After receiving the head overhead in the overhead channel, the receiving node first performs local verification according to the remote local identifier of the sub-channel carried in the head overhead. In the case that the received remote local identifier of the sub-channel is consistent with the local identifier, the local binding of the channel and the sub-channel is performed, and the interface address at the channel level and the interface address at the OTSiA level are formed, thereby creating the optical layer path and providing a basis for multiplexing and demultiplexing of the signal.

[0074] Table 1 is an information table of the channel identification information configured for the sending node

[0075] Optical layer adaptation interface local identifier Number of channels contained by the optical layer Channel #1 local identifier Number of sub-channels contained by channel #1 Sub-channel #1.1 local identifier Sub-channel #1.1 far-end local identifier Sub-channel #1.2 local identifier Sub-channel #1.2 far-end local identifier …… Sub-channel #1.k local identifier Sub-channel #1.k far-end local identifier Channel #2 local identifier Number of sub-channels contained by channel #2 Sub-channel #2.1 local identifier Sub-channel #2.1 far-end local identifier Sub-channel #2.2 local identifier Sub-channel #2.2 far-end local identifier …… Sub-channel #2.k local identifier Sub-channel #2.k far-end local identifier …… Channel #m local identifier Number of sub-channels contained by channel #m Sub-channel #m.1 local identifier Sub-channel #m.1 far-end local identifier Sub-channel #m.2 local identifier Sub-channel #m.2 far-end local identifier …… Sub-channel #m.k local identifier Sub-channel #m.k far-end local identifier

[0076] ​Table 1 is an information table of channel identification information configured for a sending node according to an embodiment. As shown in Table 1, the channel identification information includes:

[0077] Optical layer adaptation interface local identifier: the signals of all optical layer channels are bound together, and appear as a single interface to the outside. The electrical signals of the upper client layer forward information data streams to this interface, and complete channel division of the electrical layer signals and modulation to the corresponding optical module interface to transmit optical signals;

[0078] Number of channels contained in the optical layer: indicates the number of channel division of the first level, i.e., the number of FlexO instances divided by OTUCn;

[0079] Local identifier of channel #m: the local identifier of the local interface of channel #m;

[0080] Number of sub-channels contained in channel #m: indicates the number of sub-channel division of the second level, i.e., the number of sub-channels divided by each FlexO instance;

[0081] Local identifier of sub-channel #m.k: the local identifier of sub-channel k under channel #m;

[0082] Remote local identifier of sub-channel #m.k: the remote local identifier of sub-channel k under channel #m, which corresponds to the local identifier of sub-channel k under channel #m and uniquely identifies an optical fiber link at the sub-channel level.

[0083] As shown in Table 1, the channel identification information includes: Figure 3 As shown in Table 1, the channel identification information includes:

[0084] 1) The network management device configures channel identification information for the router node according to the multiplexing structure of the optical layer channel, which contains the remote local identifier of the sub-channel;

[0085] 2) The router node completes the binding of the local sub-channel level interface and the binding of the channel level according to the configuration of the network management device, and then encapsulates the channel identification information shown in Table 1 in the header overhead and sends it to the opposite converter node;

[0086] 3) The converter node receives the encapsulated overhead in the overhead channel and decapsulates it to recover the OTSiG-O, according to which it verifies whether the remote local identifier of the subchannel in the OTSiG-O is consistent with the local one, and if not, it replies with an error message, and if so, it completes the binding of the local subchannel level interface, forms a channel, and creates the channel level interface address, completes the binding of the channel level interface, and creates the OTSiA level interface address, thus completing the configuration of an OTSiA connection. The channel level interface address and the OTSiA level interface address can be announced to the peer through negotiation and interaction between the two ends of the link.

[0087] In an embodiment, the target nodes include a sending node and a receiving node; and the method comprises configuring channel identification information to the target nodes according to the multiplexing structure, which comprises configuring corresponding channel identification information to each target node according to the multiplexing structure.

[0088] In this embodiment, in the case where there is no overhead channel for transmitting the overhead in the sending node and the receiving node, the sending node and the receiving node can be configured by the network management device, and based on the method for representing the channels and subchannels constituting the OTSiG, the electrical layer client signal is correctly encapsulated and decapsulated to complete the configuration and establishment of the optical layer path. The sending node and the receiving node need to complete the binding of the local subchannel level interface to form m channels based on the channel identification information received by each of them, and set the interface identifier for each channel; and then complete the binding of the channel level to form an OTSiG, and set the OTSiG interface identifier.

[0089] Figure 4 An implementation schematic diagram of the configuration method in the case where there is no overhead channel is provided in an embodiment. As shown in Figure 4 The target nodes are a sending node and a receiving node, the network management device configures and issues channel identification information to the sending node and the receiving node, and the sending node and the receiving node each implement the binding of the local channel and subchannel.

[0090] In an embodiment, the channel identification information corresponding to each target node comprises the following information of the target node: the optical layer adaptation interface local identifier; the number of channels contained by the optical layer; the channel local identifier; the number of subchannels contained by the channel; and the subchannel local identifier.

[0091] In this embodiment, the network management device can send the channel identification information to the sending node and the receiving node of the OTSiG through the southbound interface protocol, so that the sending node and the receiving node multiplex and demultiplex the signals. The network management device knows the inter-domain link interconnection topology information, and the channel identification information corresponding to each target node only needs to include the local identifier of the local channel or subchannel, does not need to include the identifier of the far-end interface, and does not need to transmit the header overhead and verify the channel identification information, thereby improving the efficiency of the optical layer channel binding.

[0092] Table 2 is an information table of the channel identification information configured for the sending node or the receiving node according to an embodiment. As shown in Table 2, the information table includes the following information:

[0093] The optical layer adaptation interface local identifier: all optical layer channels are bound together, and appear as a single interface to the outside. The electrical signal of the upper client layer forwards the information data stream to the interface, and completes the channel division of the electrical layer signal and modulates the optical signal transmitted on the corresponding optical module interface.

[0094] The number of channels included in the optical layer: indicates the number of channel division of the first level, that is, the number of FlexO instances divided by the OTUCn.

[0095] The local identifier of channel #m: the local identifier of channel #m;

[0096] The number of subchannels included in channel #m: indicates the number of subchannel division of the second level, that is, the number of subchannels divided by each FlexO instance.

[0097] The local identifier of subchannel #m.k: the local identifier of subchannel k under channel #m.

[0098] Table 2 is an information table of the channel identification information configured for the sending node or the receiving node

[0099] Optical layer adaptation interface local identifier Number of channels contained by the optical layer Channel #1 local identifier Number of sub-channels contained by channel #1 Sub-channel #1.1 local identifier Sub-channel #1.2 local identifier …… Sub-channel #1.k local identifier Number of sub-channels contained by channel #2 Sub-channel #2.1 local identifier Sub-channel #2.2 local identifier …… Sub-channel #2.k local identifier …… Number of sub-channels contained by channel #m Sub-channel #m.1 local identifier Sub-channel #m.2 local identifier …… Sub-channel #m.k local identifier

[0100] As Figure 4 shown, taking the FlexO link between the left router (R) node and the converter (T) node as an example, in the scenario of the overhead channel, the interaction process between the network management device and the router node (that is, the sending node) and the converter node (that is, the receiving node) is as follows:

[0101] 1) The network management device configures and sends the channel identification information to the router node and the converter node according to the multiplexing structure of the optical layer channel;

[0102] 2) The router node and the converter node respectively complete the binding of the local sub-path interface according to the distributed channel identification information, form a path, create a path interface address, set an interface identifier for each path, complete the interface binding of the path level, form an OTSiG, set an OTSiG interface identifier, then create an OTSiA interface address, complete the configuration of the OTSiA connection, and implement the establishment of the optical layer path.

[0103] The above embodiment implements the configuration of the channel identification information and the binding of the optical layer path in the scenarios of the overhead path and the non-overhead path, improves the flexibility of the configuration, and provides a reliable basis for the binding of the optical layer path.

[0104] Figure 5 A flowchart of a binding method provided by an embodiment. The method is applicable to the case of the overhead path and can be applied to a sending node. As shown in Figure 5 The method provided by the embodiment includes steps 210-230.

[0105] In step 210, the channel identification information is acquired.

[0106] In step 220, the local optical layer path is bound according to the channel identification information.

[0107] In step 230, the channel identification information is encapsulated in a header overhead, and the header overhead is sent to a receiving node, where the header overhead is used to instruct the receiving node to bind the optical layer path.

[0108] In the embodiment, the sending node acquires the channel identification information configured by the network management device, and binds the local optical layer path according to the channel identification information. In addition, the sending node encapsulates and sends the channel identification information to the corresponding receiving node at the far end, so that the receiving node can also complete the binding of the optical layer path, thereby realizing the accurate binding of the optical layer path and providing a basis for the correct multiplexing and demultiplexing of the customer signal.

[0109] In an embodiment, the channel identification information includes the following information of the sending node: an optical layer adaptation interface local identifier; a number of paths contained by the optical layer; a path local identifier; a number of sub-paths contained by the path; a sub-path local identifier; and a sub-path far-end local identifier.

[0110] In the embodiment, in the overhead path, the OTSiG-O carries the identification information of the physical interface of the path and the sub-path constituting the OTSiG, and the sub-path carries the local identifier and the far-end local identifier, thereby providing a basis for the verification of the channel identification information and ensuring the accuracy and reliability of the binding of the optical layer path.

[0111] In this embodiment, the operation performed by the sending node corresponds to the operation performed by the network management device in the scenario with overhead channel in the above-described embodiments, and the technical details not described in this embodiment can be referred to any of the above-described embodiments.

[0112] Figure 6 A flowchart of a binding method provided for another embodiment. The method is applicable to the case with overhead channel and can be applied to a receiving node. As shown in Figure 6 The method provided in this embodiment includes steps 310-330.

[0113] In step 310, the header overhead is received.

[0114] In step 320, the channel identification information is determined according to the header overhead.

[0115] In step 330, in the case where the channel identification information is verified, the local optical layer channel is bound according to the channel identification information.

[0116] In this embodiment, the sending node encapsulates the channel identification information in the header overhead and sends it to the corresponding receiving node at the far end. After receiving the header overhead in the overhead channel, the receiving node first performs local verification according to the far-end local identifier of the sub-channel carried therein. In the case where the received far-end local identifier of the sub-channel is consistent with the local identifier, the local binding of the channel and the sub-channel is performed, and the interface address at the channel level and the interface address at the OTSiA level are formed, thereby creating the optical layer path and realizing the accurate binding of the optical layer channel and improving the reliability of the binding, which provides a basis for the multiplexing and demultiplexing of signals.

[0117] In an embodiment, the channel identification information includes the following information of the sending node: optical layer adaptation interface local identifier; number of channels contained by the optical layer; channel local identifier; number of sub-channels contained by the channel; sub-channel local identifier; and sub-channel far-end local identifier.

[0118] In this embodiment, in the overhead channel, the identification information of the physical interface of the channel and the sub-channel constituting the OTSiG is carried by OTSiG-O, and the local identifier and the far-end local identifier are carried for the sub-channel.

[0119] In an embodiment, the method further includes:

[0120] Step 321: verifying the channel identification information; in the case where the sub-channel far-end local identifier of the sending node is consistent with the sub-channel local identifier of the receiving node in the channel identification information, the channel identification information is verified.

[0121] In the embodiment, the receiving node receives the encapsulated overhead in the overhead channel and decapsulates it to restore the OTSiG-O, and verifies whether the subchannel remote local identifier in the OTSiG-O is consistent with the local local identifier, and if not, returns error information, and if yes, completes the binding of the local subchannel layer interface, creates the interface address of the channel layer, completes the binding of the interface of the channel layer, creates the optical layer path, and improves the reliability and accuracy of the optical layer channel binding.

[0122] In the embodiment, the operations performed by the receiving node correspond to the operations performed by the sending node in the above-described embodiment in the scenario with the overhead channel, and the technical details not described in detail in the embodiment can be referred to any of the above-described embodiments.

[0123] Figure 7 A flowchart of a binding method provided by another embodiment is shown. The method is applicable to the case without the overhead channel, and can be applied to the sending node or the receiving node. As shown in Figure 7 The method provided by the embodiment includes steps 410 and 420.

[0124] In step 410, the channel identification information is acquired.

[0125] In step 420, the local optical layer channel is bound according to the channel identification information.

[0126] In the embodiment, in the scenario without the overhead channel for transmitting the overhead between the sending node and the receiving node, the sending node and the receiving node of the OTSiG can be configured by the network management device respectively, the method for representing the constituent channels and subchannels of the OTSiG is based on, the electrical layer customer signal is correctly encapsulated and decapsulated, and the configuration and establishment of the optical layer path are completed. The sending node and the receiving node need to be based on the channel identification information received respectively, first complete the binding of the local subchannel layer interface, form m channels, and set the interface identifiers for the channels; second, complete the binding of the channel layer, form an OTSiG, and set the OTSiG interface identifier, so as to realize the accurate binding of the optical layer channel, and further provide the basis for the correct multiplexing and demultiplexing of the customer signal.

[0127] In an embodiment, the channel identification information includes the following information of the target node: the optical layer adaptation interface local identifier; the number of channels contained by the optical layer; the channel local identifier; the number of subchannels contained by the channel; and the subchannel local identifier.

[0128] In the embodiment, the network management device can send channel identification information to the sending node and the receiving node of the OTSiG through the southbound interface protocol, so that the sending node and the receiving node multiplex and demultiplex signals. The network management device knows the inter-domain link interconnection topology information and the channel identification information corresponding to each target node, and only needs to include the local identifier of the local channel or subchannel, without including the identifier of the far-end interface, and without transmitting the header overhead and verifying the channel identification information, thereby improving the efficiency of optical layer channel binding.

[0129] The embodiment of the application further provides a configuration device. Figure 8 A structural schematic diagram of a configuration device provided for an embodiment is shown in FIG. 5. Figure 8 As shown in FIG. 5, the configuration device comprises a structure determination module 510 and a configuration module 520.

[0130] The structure determination module 510 is configured to determine a multiplexing structure of an optical layer channel.

[0131] The configuration module 520 is configured to configure channel identification information for a target node according to the multiplexing structure, and the channel identification information is used to instruct the target node to bind the optical layer channel.

[0132] The configuration device of the embodiment configures the channel identification information for the target node, effectively configures the multiplexing of the optical layer channel, thereby realizing accurate binding of the optical layer channel, and further providing a basis for correct multiplexing and demultiplexing of customer signals.

[0133] In an embodiment, the target node comprises a sending node, and the sending node and the corresponding receiving node have an overhead channel for transmitting the channel identification information.

[0134] In an embodiment, the channel identification information comprises the following information of the sending node: an optical layer adaptation interface local identifier, a number of channels contained by the optical layer, a channel local identifier, a number of subchannels contained by the channel, a subchannel local identifier, and a subchannel far-end local identifier.

[0135] In an embodiment, the target node comprises a sending node and a receiving node.

[0136] The configuration module 520 is specifically configured to configure corresponding channel identification information for each target node according to the multiplexing structure.

[0137] In an embodiment, the channel identification information corresponding to each target node comprises the following information of the target node: an optical layer adaptation interface local identifier, a number of channels contained by the optical layer, a channel local identifier, a number of subchannels contained by the channel, and a subchannel local identifier.

[0138] The configuration device provided in the embodiment belongs to the same inventive concept as the configuration method provided in the above-described embodiments, and the technical details not described in detail in the embodiment can be referred to the above-described embodiments, and the embodiment has the same beneficial effects as performing the configuration method.

[0139] The application further provides a binding device. Figure 9 A structural schematic diagram of a binding device provided for an embodiment is shown in FIG. 7. Figure 9 As shown in the figure, the binding device comprises a first acquisition module 610, a first binding module 620 and an overhead sending module 630.

[0140] The first acquisition module 610 is configured to acquire channel identification information.

[0141] The first binding module 620 is configured to bind a local optical layer channel according to the channel identification information.

[0142] The overhead sending module 630 is configured to encapsulate the channel identification information in a header overhead and send the header overhead to a receiving node, where the header overhead is used to instruct the receiving node to bind an optical layer channel.

[0143] The binding device of the embodiment acquires channel identification information configured by a network management device, and accordingly binds a local optical layer channel. On the other hand, the binding device also encapsulates and sends the channel identification information to a corresponding receiving node at a remote end, so that the receiving node can also complete the binding of the optical layer channel, thereby realizing accurate binding of the optical layer channel and providing a basis for correct multiplexing and demultiplexing of customer signals.

[0144] In an embodiment, the channel identification information comprises the following information of the sending node: an optical layer adaptation interface local identifier; a number of channels contained by the optical layer; a channel local identifier; a number of sub-channels contained by the channel; a sub-channel local identifier; and a sub-channel remote end local identifier.

[0145] The binding device provided in the embodiment belongs to the same inventive concept as the binding method applied to the sending node provided in the above-described embodiments, and the technical details not described in detail in the embodiment can be referred to the above-described embodiments, and the embodiment has the same beneficial effects as performing the configuration method applied to the sending node.

[0146] The application further provides a binding device. Figure 10 A structural schematic diagram of a binding device provided for another embodiment is shown in FIG. 7. Figure 10 As shown in the figure, the binding device comprises an overhead receiving module 710, an identification determining module 720 and a second binding module 730.

[0147] The overhead receiving module 710 is configured to receive a header overhead.

[0148] The identification determining module 720 is configured to determine channel identification information according to the header overhead.

[0149] The second binding module 730 is configured to bind a local optical layer channel according to the channel identification information if the channel identification information is verified.

[0150] The binding device of the embodiment, after receiving the header overhead in the overhead channel, first performs local verification according to the remote local identifier of the subchannel carried in the header overhead, and performs local binding of the channel and the subchannel and forms the interface address at the channel level and the interface address at the OTSiA level if it is confirmed that the received remote local identifier of the subchannel is consistent with the local interface identifier, thereby creating an optical layer path and realizing accurate binding of the optical layer channel and improving the reliability of the binding and providing a basis for multiplexing and demultiplexing of signals.

[0151] In an embodiment, the channel identification information includes the following information of the sending node: an optical layer adaptation interface local identifier; a number of channels contained by the optical layer; a channel local identifier; a number of subchannels contained by the channel; a subchannel local identifier; and a subchannel remote local identifier.

[0152] In an embodiment, the binding device further includes:

[0153] The verification module is configured to verify the channel identification information.

[0154] The channel identification information is verified if the subchannel remote local identifier of the sending node and the subchannel local identifier of the receiving node in the channel identification information are consistent.

[0155] The binding device of the embodiment and the binding method applied to the receiving node of the above embodiments belong to the same inventive concept, and the technical details not described in the embodiment can be referred to any of the above embodiments, and the embodiment has the same beneficial effects as the binding method applied to the receiving node.

[0156] The embodiment of the application further provides a binding device. Figure 11 A structural schematic diagram of a binding device provided by still another embodiment is shown in FIG. 8. Figure 11 As shown in FIG. 8, the binding device includes a second acquisition module 810 and a third binding module 820.

[0157] The second acquisition module 810 is configured to acquire channel identification information.

[0158] The third binding module 820 is configured to bind a local optical layer channel according to the channel identification information.

[0159] The binding device in this embodiment achieves accurate binding of optical layer channels based on the received channel identification information, thereby improving the efficiency of optical layer channel binding.

[0160] In one embodiment, the channel identification information includes the following information of the target node: optical layer adapter interface local identifier; number of channels contained in the optical layer; channel local identifier; number of sub-channels contained in the channel; sub-channel local identifier.

[0161] The binding device proposed in this embodiment belongs to the same inventive concept as the binding method applied to the target node (including the sending node and the receiving node) proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as the configuration method applied to the sending node.

[0162] This application also provides a device. The configuration method can be executed by a configuration device, which can be implemented in software and / or hardware and integrated into the device. The device is, for example, a network management device, a controller, etc.

[0163] Figure 12 This is a schematic diagram of the hardware structure of a device provided in one embodiment. For example... Figure 12 As shown, this embodiment provides a device including a processor 10 and a storage device 20. The processor in this device can be one or more. Figure 9 Taking a processor 10 as an example, the processor 10 and the storage device 20 in the device can be connected via a bus or other means. Figure 9 Taking the example of a connection between China and Israel via a bus.

[0164] The one or more programs are executed by the one or more processors 10, causing the one or more processors to implement the configuration method described in any of the above embodiments.

[0165] The storage device 20 in this device serves as a computer-readable storage medium and can be used to store one or more programs. These programs can be software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the configuration method in this embodiment of the invention (e.g., appendix). Figure 8 The modules in the configuration device shown include: a structure determination module 510 and a configuration module 520. The processor 10 executes various functional applications and data processing of the device by running software programs, instructions, and modules stored in the storage device 20, thereby implementing the configuration method in the above method embodiments.

[0166] The storage device 20 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system and application programs required by at least one function; and the storage data area can store data created according to the use of the device and the like (such as the channel identification information and the multiplexing structure in the above embodiment). In addition, the storage device 20 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some examples, the storage device 20 can further include a memory remotely arranged with respect to the processor 10, and these remote memories can be connected to the device through a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0167] And when one or more programs included in the above device are executed by the one or more processors 10, the following operations are implemented: determining a multiplexing structure of an optical layer channel; and configuring channel identification information for a target node according to the multiplexing structure, the channel identification information being used to instruct the target node to bind the optical layer channel.

[0168] The device proposed in this embodiment belongs to the same inventive concept as the configuration method proposed in the above embodiment, and the technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the configuration method.

[0169] The application embodiment also provides a sending node. The binding method applied to the sending node in the above embodiment can be executed by a binding device, which can be realized in a software and / or hardware manner and integrated in the sending node, such as a router, a converter, a switch, etc.

[0170] Figure 13 A hardware structure schematic diagram of a sending node is provided for an embodiment. As shown in Figure 13 The sending node provided by the embodiment includes a processor 30 and a storage device 40. The processor in the sending node can be one or more, Figure 13 In the above embodiment, the processor 30 in the device and the storage device 40 can be connected through a bus or other means, Figure 13 In the above embodiment, the connection through the bus is taken as an example.

[0171] The one or more programs are executed by the one or more processors 30, so that the one or more processors implement the binding method applied to the sending node in any of the above embodiments.

[0172] The storage 40 in the sending node serves as a computer readable storage medium, and can be used to store one or more programs, which can be software programs, computer executable programs and modules, such as program instructions / modules corresponding to the binding method applied to the sending node in the embodiments of the present application (for example, the modules in the binding device shown in FIG. 6, including the first obtaining module 610, the first binding module 620 and the overhead sending module 630). The processor 30 executes the software programs, instructions and modules stored in the storage 40, so as to implement various functional applications and data processing of the sending node, that is, to implement the configuration method in the above method embodiments. Figure 9 The modules in the binding device shown in FIG. 6 include the first obtaining module 610, the first binding module 620 and the overhead sending module 630. The processor 30 executes the software programs, instructions and modules stored in the storage 40, so as to implement various functional applications and data processing of the sending node, that is, to implement the configuration method in the above method embodiments.

[0173] The storage 40 mainly includes a program storage area and a data storage area. The program storage area can store an operating system and at least one application program required by a function. The data storage area can store data created according to the use of the device, etc. (such as the channel identification information and the header overhead in the above embodiments). In addition, the storage 40 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device or other non-volatile solid-state storage device. In some examples, the storage 40 can further include a memory remotely arranged with respect to the processor 30, and these remote memories can be connected to the sending node through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network and a combination thereof.

[0174] When the one or more programs included in the above sending node are executed by the one or more processors 30, the following operations are implemented: obtaining channel identification information; binding a local optical layer channel according to the channel identification information; encapsulating the channel identification information in a header overhead, and sending the header overhead to a receiving node, the header overhead being used to instruct the receiving node to bind an optical layer channel.

[0175] When the one or more programs included in the above receiving node are executed by the one or more processors 50, the following operations are implemented: obtaining channel identification information; binding a local optical layer channel according to the channel identification information.

[0176] The sending node proposed in the embodiments belongs to the same inventive concept as the binding method applied to the sending node proposed in the above embodiments, and the technical details not described in detail in the embodiments can be referred to the above any embodiments, and the embodiments have the same beneficial effects as executing the binding method applied to the sending node.

[0177] The embodiments of the present application further provide a receiving node. The binding method applied to the receiving node in the above embodiments can be executed by a binding apparatus, which can be implemented in software and / or hardware and integrated in the receiving node, such as a router, a converter, a switch, etc.

[0178] Figure 14 A hardware structure diagram of a receiving node is provided for an embodiment. As shown in Figure 14 The receiving node provided by the embodiment includes a processor 50 and a storage apparatus 60. The processor in the receiving node can be one or more, Figure 14 In the embodiment, the processor 50 in the device and the storage apparatus 60 can be connected through a bus or other means, Figure 14 In the embodiment, the connection through the bus is taken as an example.

[0179] The one or more programs are executed by the one or more processors 50, so that the one or more processors implement the binding method applied to the receiving node in any of the above embodiments.

[0180] The storage apparatus 60 in the receiving node serves as a computer readable storage medium, which can be used to store one or more programs, such as software programs, computer executable programs and modules, such as the program instructions / modules corresponding to the binding method applied to the receiving node in the embodiments of the present application (for example, the modules in the binding apparatus shown in Figure 10 The modules in the binding apparatus include an overhead receiving module 710, an identification determining module 720 and a second binding module 730. The processor 50 executes various functional applications and data processing of the receiving node by running the software programs, instructions and modules stored in the storage apparatus 60, that is, implements the configuration method in the above method embodiments.

[0181] The storage apparatus 60 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application program required by a function; the data storage area can store data created according to the use of the device, etc. (such as the channel identification information, the header overhead, etc. in the above embodiments). In addition, the storage apparatus 60 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some examples, the storage apparatus 60 can further include a memory remotely arranged with respect to the processor 50, which can be connected to the receiving node through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network and a combination thereof.

[0182] And, when one or more programs included in the receiving node are executed by the one or more processors 50, the following operations are implemented: receiving a header overhead; determining channel identification information according to the header overhead; and binding a local optical layer channel according to the channel identification information in a case where the channel identification information is verified.

[0183] Or, when one or more programs included in the receiving node are executed by the one or more processors 50, the following operations are implemented: obtaining channel identification information; and binding a local optical layer channel according to the channel identification information.

[0184] The receiving node proposed in this embodiment and the binding method applied to the receiving node proposed in the above embodiments belong to the same inventive concept, and the technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the binding method applied to the receiving node.

[0185] The embodiments of the present application also provide a storage medium containing computer executable instructions, which are used to execute a configuration method or a binding method when executed by a computer processor.

[0186] The configuration method comprises: determining a multiplexing structure of an optical layer channel; and configuring channel identification information for a target node according to the multiplexing structure, the channel identification information being used to instruct the target node to bind the optical layer channel.

[0187] The binding method comprises: obtaining channel identification information; binding a local optical layer channel according to the channel identification information; encapsulating the channel identification information in a header overhead; and sending the header overhead to a receiving node, the header overhead being used to instruct the receiving node to bind the optical layer channel.

[0188] Or, the binding method comprises: receiving a header overhead; determining channel identification information according to the header overhead; and binding a local optical layer channel according to the channel identification information in a case where the channel identification information is verified.

[0189] Or, the binding method comprises: obtaining channel identification information; and binding a local optical layer channel according to the channel identification information.

[0190] Those skilled in the art can understand that the present application can be implemented by means of software and general hardware based on the above description of the embodiments. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product. The computer software product can be stored in a computer readable storage medium, such as a floppy disk, a ROM, a RAM, a FLASH memory, a hard disk, or an optical disc, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the configuration method or the binding method described in any embodiment of the present application.

[0191] The above merely describes exemplary embodiments of the present application, but is not intended to limit the protection scope of the present application.

[0192] Any logical flow block diagram in the drawings of the present application can represent program steps, or can represent interconnection of logical circuits, modules and functions, or can represent a combination of program steps and logical circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical storage devices and systems (digital versatile disc DVD or CD disc), etc. The computer readable medium can include a non-transitory storage medium. The data processor can be any type suitable for the local technical environment, such as but not limited to a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (FGPA), and a processor based on a multi-core processor architecture.

[0193] A detailed description of exemplary embodiments of the present application has been provided above with reference to a number of illustrative examples. However, various modifications and changes can be made to the above embodiments by those skilled in the art without departing from the scope of the present application, which is defined by the following claims. Therefore, the proper scope of the present application is determined by the claims.

Claims

1. A configuration method, characterized by, The method comprises: determining a multiplexing structure of an optical layer channel; configuring channel identification information for a target node according to the multiplexing structure, the channel identification information being used to instruct the target node to bind a local optical layer channel; wherein the binding of the local optical layer channel comprises: performing a local binding of a sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface used for creating an optical layer path.

2. The method of claim 1, wherein, The target node comprises a sending node; The sending node and a corresponding receiving node have an overhead channel used for transmitting the channel identification information.

3. The method of claim 2, wherein, The channel identification information comprises the following information of the sending node: a local identifier of an optical layer adaptation interface; a number of channels contained in the optical layer; a local identifier of a channel; a number of sub-channels contained in the channel; a local identifier of a sub-channel; a remote local identifier of a sub-channel.

4. The method of claim 1, wherein, The target node comprises a sending node and a receiving node; The configuration of the channel identification information for the target node according to the multiplexing structure comprises: configuring corresponding channel identification information for each target node according to the multiplexing structure.

5. The method of claim 4, wherein, The channel identification information corresponding to each target node comprises the following information of the target node: a local identifier of an optical layer adaptation interface; a number of channels contained in the optical layer; a local identifier of a channel; a number of sub-channels contained in the channel; a local identifier of a sub-channel.

6. A binding method, characterized by, The method applied to the sending node comprises: obtaining channel identification information; binding a local optical layer channel according to the channel identification information; encapsulating the channel identification information in a header overhead, and sending the header overhead to a receiving node, the header overhead being used to instruct the receiving node to bind an optical layer channel; wherein the binding of the local optical layer channel comprises: performing a local binding of a sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface used for creating an optical layer path.

7. The method of claim 6, wherein, The channel identification information comprises the following information of the sending node: a local identifier of an optical layer adaptation interface; a number of channels contained in the optical layer; a local identifier of a channel; a number of sub-channels contained in the channel; a local identifier of a sub-channel; a remote local identifier of a sub-channel.

8. A binding method, characterized by, The method applied to the receiving node comprises: receiving a header overhead; determining channel identification information according to the header overhead; in a case where the channel identification information is verified, binding a local optical layer channel according to the channel identification information; wherein the binding of the local optical layer channel comprises: performing a local binding of a sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface used for creating an optical layer path.

9. The method of claim 8, wherein, The channel identification information comprises the following information of the sending node: a local identifier of an optical layer adaptation interface; a number of channels contained in the optical layer; a local identifier of a channel; a number of sub-channels contained in the channel; a local identifier of a sub-channel; a remote local identifier of a sub-channel.

10. The method of claim 9, wherein, Further comprising: verifying the channel identification information; in a case where a remote local identifier of a sub-channel of the sending node in the channel identification information is consistent with a local identifier of a sub-channel of the receiving node, the channel identification information is verified.

11. A binding method, characterized by, The method is applied to a target node, the target node comprising a sending node and a receiving node, and the method comprises: acquiring channel identification information; binding a local optical layer channel according to the channel identification information; wherein the binding of the local optical layer channel comprises binding a local sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface for creating an optical layer path.

12. The method of claim 11, wherein, The channel identification information comprises the following information of the target node: an optical layer adaptation interface local identifier; a number of channels contained by the optical layer; a channel local identifier; a number of sub-channels contained by the channel; a sub-channel local identifier.

13. A configuration apparatus characterized by comprising: The method comprises: a structure determination module configured to determine a multiplexing structure of an optical layer channel; a configuration module configured to configure channel identification information for the target node according to the multiplexing structure, the channel identification information being used to instruct the target node to bind a local optical layer channel; wherein the binding of the local optical layer channel comprises binding a local sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface for creating an optical layer path.

14. A binding apparatus characterized by comprising: The method comprises: a first acquisition module configured to acquire channel identification information; a first binding module configured to bind a local optical layer channel according to the channel identification information; an overhead sending module configured to encapsulate the channel identification information in a header overhead, and send the header overhead to a receiving node, the header overhead being used to instruct the receiving node to bind an optical layer channel; wherein the binding of the local optical layer channel comprises binding a local sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface for creating an optical layer path.

15. A binding apparatus characterized by comprising: The method comprises: an overhead receiving module configured to receive a header overhead; an identification determination module configured to determine channel identification information according to the header overhead; a second binding module configured to bind a local optical layer channel according to the channel identification information if the channel identification information is verified; wherein the binding of the local optical layer channel comprises binding a local sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface for creating an optical layer path.

16. A binding apparatus characterized by The method comprises: a second acquisition module configured to acquire channel identification information; a third binding module configured to bind a local optical layer channel according to the channel identification information; wherein the binding of the local optical layer channel comprises binding a local sub-channel layer interface and a channel layer interface, and forming an address of the channel layer interface and an address of an OTSiA layer interface for creating an optical layer path.

17. An apparatus, comprising: The method comprises: one or more processors; a storage device for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors implement the configuration method of any one of claims 1-5.

18. A transmitting node, characterized by The method comprises: one or more processors; a storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement a configuration method as claimed in any of claims 1-5 or a binding method as claimed in any of claims 6-7 or a binding method as claimed in any of claims 8-9 or a binding method as claimed in any of claims 11-12.

19. A receiving node, characterized by comprising: one or more processors; a memory device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement a configuration method as claimed in any of claims 1-5 or a binding method as claimed in any of claims 6-7 or a binding method as claimed in any of claims 8-9 or a binding method as claimed in any of claims 11-12.

20. A computer readable storage medium having stored thereon a computer program, characterized in that, The program which when executed by a processor implements a configuration method as claimed in any of claims 1-5 or a binding method as claimed in any of claims 6-7 or a binding method as claimed in any of claims 8-9 or a binding method as claimed in any of claims 11-12.

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