CN111131350B - End-to-end connection establishment method and controller - Google Patents
End-to-end connection establishment method and controller Download PDFInfo
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- CN111131350B CN111131350B CN201811284745.XA CN201811284745A CN111131350B CN 111131350 B CN111131350 B CN 111131350B CN 201811284745 A CN201811284745 A CN 201811284745A CN 111131350 B CN111131350 B CN 111131350B
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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Abstract
The invention provides an end-to-end connection establishing method and a controller, and relates to the technical field of communication. The method comprises the following steps: sending backbone network reuse information to an intra-domain controller, wherein the backbone network reuse information comprises: a reuse flag for indicating whether to reuse an established backbone network resource; receiving port information fed back by the intra-domain controller according to the reuse identifier; and establishing end-to-end connection according to the port information. The scheme of the invention realizes effective CPE access and end-to-end connection communication.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a controller for establishing an end-to-end connection.
Background
With the development of technology, when facing to the large government and enterprise customers, a special line is established to meet the requirements of users, and the operation flow of the special line is to establish a backbone part network connection and then to open an access part connection to form an end-to-end service. Therefore, the backbone network connection is usually established when customer-side equipment CPE of a government-enterprise private network is accessed, and for a software defined transmission network SDN, when the CPE is accessed, the existing backbone network connection can be reused, and the connection between the CPE and the backbone network is opened.
Currently, a method for implementing client-side device access and end-to-end connection continuity by an SDN controller includes:
the method I comprises the following steps: establishing three-section connections respectively, namely establishing backbone network connection firstly, and then establishing access connections at two ends respectively to realize service connection from CPE to CPE, wherein the SDN controller needs to manage three connections;
the second method comprises the following steps: backbone side connection is established in advance, when end-to-end connection is needed, backbone part resources are released first, and then end-to-end connection is reestablished, and at the moment, only one connection needs to be managed by the SDN controller.
However, by dividing the end-to-end connection into three segments in the controller, the subsequent maintenance or upgrade process is complicated. For example, if the bandwidth of the end-to-end connection needs to be modified, the bandwidths of three segments of the connection need to be modified, and if one segment of the connection fails to be modified, the rest of the connection needs to be rolled back. In addition, the status query and performance monitoring for the end-to-end connection also need to look at the three-segment connection separately. The operation and maintenance efficiency in this manner is rather low.
The second method needs multiple operations, and after resources of the backbone part are released, the second method may be occupied by other connections, so that the end-to-end connection cannot be opened. Therefore, this approach is also unreasonable.
In summary, neither of the two current schemes can effectively achieve CPE access and end-to-end connection cut-through.
Disclosure of Invention
The invention aims to provide an end-to-end connection establishing method and a controller so as to realize effective CPE access and end-to-end connection communication.
To achieve the above object, an embodiment of the present invention provides an end-to-end connection establishing method, including:
sending backbone network reuse information to an intra-domain controller, wherein the backbone network reuse information comprises: a reuse identifier for indicating whether to reuse an established backbone network resource;
receiving port information fed back by the intra-domain controller according to the reuse identifier;
and establishing end-to-end connection according to the port information.
Optionally, sending backbone network reuse information to the intradomain controller includes:
sending an end-to-end connection request to an intra-domain controller, wherein the end-to-end connection request comprises the backbone network reuse information, and the reuse identifier is located in a preset field of the end-to-end connection request for creating connection service interface information.
Optionally, the backbone network reuse information further includes: and identifying the reused backbone network resources.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
Optionally, receiving port information fed back by the intra-domain controller according to the reuse identifier includes:
receiving port information fed back by the intra-domain controller under the condition that the reuse identification indicates to reuse the established backbone network resource, wherein the port information is information of an external line side port searched by the intra-domain controller based on the reused backbone network resource identification.
Optionally, establishing an end-to-end connection according to the port information includes:
and accessing the target user equipment to the reused backbone network resource according to the port information.
Optionally, before sending the backbone network reuse information to the intradomain controller, the method further includes:
sending a backbone network resource occupation request to the intra-domain controller according to the private line subscription information;
and receiving backbone network resource configuration information fed back by the intra-domain controller according to the backbone network resource occupation request.
To achieve the above object, an embodiment of the present invention provides an end-to-end connection establishment method, including:
receiving backbone network reuse information sent by an inter-domain controller, wherein the backbone network reuse information comprises: a reuse flag for indicating whether to reuse an established backbone network resource;
and sending the port information corresponding to the reuse identifier to the inter-domain controller.
Optionally, receiving backbone network reuse information sent by an inter-domain controller includes:
receiving an end-to-end connection request sent by the inter-domain controller, wherein the end-to-end connection request includes the backbone network reuse information, and the reuse identifier is located in a preset field of connection service interface information created in the end-to-end connection request.
Optionally, the backbone network reuse information further includes: and identifying the reused backbone network resources.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
Optionally, before sending the port information corresponding to the reuse identifier to the inter-domain controller, the method further includes:
and under the condition that the reuse identification indicates that the established backbone network resources are reused, searching the information of the external line side port according to the received reused backbone network resource identification, and taking the information of the external line side port as port information.
Optionally, before receiving the backbone network reuse information sent by the inter-domain controller, the method further includes:
receiving a backbone network resource occupation request sent by an inter-domain controller;
and allocating the backbone network resources according to the backbone network resource occupation request, and feeding back backbone network resource allocation information to the inter-domain controller.
To achieve the above object, an embodiment of the present invention provides an inter-domain controller, which includes a first processor and a first transceiver, wherein,
the first transceiver is configured to send backbone network reuse information to an intradomain controller, where the backbone network reuse information includes: a reuse identifier for indicating whether to reuse an established backbone network resource; receiving port information fed back by the intra-domain controller according to the reuse identifier;
the first processor is used for establishing end-to-end connection according to the port information.
Optionally, the first transceiver is further configured to send an end-to-end connection request to an intra-domain controller, where the end-to-end connection request includes the backbone network reuse information, and the reuse identifier is located in a preset field of the end-to-end connection request, where the preset field creates connection service interface information.
Optionally, the backbone network reuse information further includes: and identifying the reused backbone network resources.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
Optionally, the first transceiver is further configured to receive port information fed back by the intra-domain controller when the reuse identifier indicates to reuse an established backbone network resource, where the port information is information of an external line-side port found by the intra-domain controller based on the reused backbone network resource identifier.
Optionally, the first processor is further configured to access, according to the port information, the reused backbone network resource to the target user equipment.
Optionally, the first transceiver is further configured to send a backbone network resource occupation request to the intra-domain controller according to the private line subscription information; and receiving backbone network resource configuration information fed back by the intra-domain controller according to the backbone network resource occupation request.
To achieve the above object, an embodiment of the present invention provides an intra-domain controller, which includes a second processor and a second transceiver, wherein,
the second transceiver is configured to receive backbone network reuse information sent by an inter-domain controller, where the backbone network reuse information includes: a reuse flag for indicating whether to reuse an established backbone network resource; and sending the port information corresponding to the reuse identifier to the inter-domain controller.
Optionally, the second transceiver is further configured to receive an end-to-end connection request sent by the inter-domain controller, where the end-to-end connection request includes the backbone network reuse information, and the reuse identifier is located in a preset field of creating connection service interface information in the end-to-end connection request.
Optionally, the backbone network reuse information further includes: and the reused backbone network resource identification.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
Optionally, the second processor is configured to, when the reuse identifier indicates to reuse an established backbone network resource, find information of the external line-side port according to the received reused backbone network resource identifier, and use the information of the external line-side port as port information.
Optionally, the second transceiver is further configured to receive a backbone network resource occupation request sent by an inter-domain controller;
and the second processor is also used for configuring the backbone network resources according to the backbone network resource occupation request and feeding back backbone network resource configuration information to the inter-domain controller.
To achieve the above object, an embodiment of the present invention provides an inter-domain controller, which includes a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor, when executing the computer program, implements an end-to-end connection establishment method as applied to an inter-domain controller.
To achieve the above object, an embodiment of the present invention provides an inter-domain controller, which includes a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; wherein the processor, when executing the computer program, implements an end-to-end connection establishment method as applied to an intradomain controller.
To achieve the above object, an embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored, which, when being executed by a processor, implements the steps in the end-to-end connection establishment method applied to an interdomain controller as above or implements the steps in the end-to-end connection establishment method applied to an interdomain controller as above.
The technical scheme of the invention has the following beneficial effects:
the method for establishing the end-to-end connection of the embodiment of the invention firstly sends the backbone network reuse information comprising the reuse identifier to the DC so that the DC feeds back the corresponding port information according to the reuse identifier, and the SC can establish the end-to-end connection based on the port information after receiving the port information. Therefore, due to the reuse identification, a complete end-to-end connection can be established directly through the corresponding port information without releasing the established backbone network resources, and the access of the CPE and the communication of the end-to-end connection are effectively realized.
Drawings
Fig. 1 is a flowchart of an end-to-end connection establishment method applied to an inter-domain controller according to an embodiment of the present invention;
fig. 2 is a second flowchart of an end-to-end connection establishment method applied to an inter-domain controller according to an embodiment of the present invention;
fig. 3 is a schematic view of interaction flow of resource reservation of backbone network;
fig. 4 is a flowchart of an end-to-end connection establishment method applied to an intradomain controller according to an embodiment of the present invention;
FIG. 5 is a block diagram of an inter-domain controller according to an embodiment of the present invention;
FIG. 6 is a block diagram of an intradomain controller of an embodiment of the present invention;
fig. 7 is a block diagram of an inter-domain controller according to another embodiment of the present invention;
fig. 8 is a block diagram of an intra-domain controller according to another embodiment of the present invention.
Detailed Description
To make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
First, it should be understood that a generally layered controller architecture of an SDN multi-domain optical transport network includes an intra-domain controller DC and an inter-domain controller SC, where the DC respectively implements intra-domain routing control and resource management of each domain, and the SC performs inter-domain coordination and cross-domain resource scheduling to implement multi-domain interworking. And signaling is interacted between the DC and the SC through a DC northbound interface, so that the SC unified scheduling is realized.
As shown in fig. 1, an end-to-end connection establishment method according to an embodiment of the present invention includes:
102, receiving port information fed back by the controller in the domain according to the reuse identifier;
and 103, establishing end-to-end connection according to the port information.
The end-to-end connection establishment method of the embodiment of the invention can be applied to the SC, through the steps, the SC firstly sends the backbone network reuse information comprising the reuse identifier to the DC, so that the DC feeds back the corresponding port information according to the reuse identifier, and after receiving the port information, the SC can establish the end-to-end connection based on the port information. Therefore, due to the reuse identification, a complete end-to-end connection can be established directly through the corresponding port information without releasing the established backbone network resources, and the access of the CPE and the communication of the end-to-end connection are effectively realized.
The port information is obtained by the DC under the condition that the received reuse identifier indicates to reuse the established backbone network resource, so as to feed back the port information to the SC, thereby reusing the established backbone network resource chain to complete the establishment of the end-to-end connection.
Generally, the SC is capable of automatically discovering CPEs deployed for construction, and thus, the end-to-end connection is established for the discovered CPEs. Optionally, step 101 comprises:
sending an end-to-end connection request to an intra-domain controller, wherein the end-to-end connection request comprises backbone network reuse information, and the reuse identifier is located in a preset field of connection service interface information created in the end-to-end connection request.
Here, the SC triggers an end-to-end connection request to the DC to inform the DC of the requirement for end-to-end connection establishment for the discovered CPE, and carries backbone network reuse information including a reuse identifier through the end-to-end connection request. And the reuse identifier is located in a preset field of creating connection service createconnectiveservice interface information in the end-to-end connection request.
Specifically, createconnectiveyservice interface information is as shown in table 1 below:
TABLE 1
Here, as shown in table 1, in the createconnectionservice interface information, an indication of reuse identification is performed through a reuseService field to indicate whether the established backbone network resources need to be reused, for example, "1" indicates that the established backbone network resources are reused, and "0" indicates that the established backbone network resources are not reused. And the end point in the createconnectionservice interface information can also acquire the external line side port of the reused backbone network connection.
It should also be noted that, in order to reserve the applicable backbone network resources for the customer demand, before step 101, as shown in fig. 2, the method further includes:
Here, the private line contract information is generated based on the content of the contract with the client, and may specifically include a required bandwidth, a service location (e.g., beijing to shanghai), and the like. The backbone network resource occupation request comprises the following steps: connection source and sink node information, bandwidth or signal type, etc. Of course, the specific information item of the backbone network resource occupation request corresponds to the private line subscription information, so that the reserved backbone network resources meet the customer requirements. The backbone network resource configuration information comprises specific resource configuration items such as a route, a source/sink port, a bandwidth or a signal type of the established connection. Therefore, according to step 201 and step 202, by sending the backbone network resource occupation request to the DC through the SC, the DC can perform backbone network resource allocation based on the backbone network resource occupation request, reserve backbone network resources for the customer to use, and the SC receives backbone network resource allocation information corresponding to the feedback. Based on the backbone network resource configuration information, the construction and deployment of the CPE and the metropolitan area network equipment can be completed, the CPE or the corresponding metropolitan area network equipment is connected to a line side port, and then end-to-end connection can be established.
For example, as shown in fig. 3, first, the SC sends a backbone network resource occupation request to the DC according to the private line subscription information, as in S301, to inform the DC to establish a connection between two edge nodes on the backbone side. After receiving the backbone network resource occupation request, the DC opens a required connection between the two line-side ports of the backbone node device, e.g. S302, and sends a configuration command to an intra-domain device (OTN device). And the intradomain device feeds back a configuration success message to the DC after the configuration is completed, as by S303. Then, the DC can return the backbone network resource configuration information to the SC as in S304.
As can be seen from the above, after reserving the backbone network resources, the SC knows the backbone network resource configuration information. Therefore, if the SC and the DC negotiate, the default reused backbone network resource may be determined by the DC, for example, randomly selected in the reserved backbone network resource, and the DC determines the port information in the reserved backbone network resource by receiving the reuse identifier only by the reuse identifier, and returns the port information.
However, for the cross-domain backbone network, in order to ensure more suitable reuse resources for the CPE, the SC preferably selects the reuse resources and informs each DC of the selection result to obtain the corresponding port information. Therefore, optionally, the backbone network reuse information further includes: and identifying the reused backbone network resources.
Here, after the reused backbone network resource identifier is selected as the SC, the reused resource is designated for establishing the current end-to-end connection, so that the DC returns port information required for establishing the connection.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
Specifically, topology constraint topologyconstraine class information is shown in table 2 below:
TABLE 2
Here, in the topologyconstraine class information shown in table 2, the indication of the backbone network resource identifier Service id to be reused through the include Service field is given.
So, in particular, step 102 comprises:
receiving port information fed back by the intra-domain controller under the condition that the reuse identifier indicates to reuse the established backbone network resource, wherein the port information is information of an external line side port searched by the intra-domain controller based on the reused backbone network resource identifier.
Further, after acquiring the port information of the DC feedback, step 103 includes:
and accessing the target user equipment to the reused backbone network resource according to the port information.
Thus, the target user equipment such as CPE can access the reused backbone network resources through the port information, and a complete end-to-end connection is established by utilizing the reused backbone network resources.
In which, the CPE often needs to establish a connection between the CPE customer side port and the line side port of the metro device, and then integrate the connection between the CPE and the metro device and the reused backbone side connection into a complete end-to-end connection.
In summary, in the end-to-end connection establishment method according to the embodiment of the present invention, the backbone network reuse information including the reuse identifier is first sent to the DC, so that the DC feeds back the corresponding port information according to the reuse identifier, and after receiving the port information, the SC can establish the end-to-end connection based on the port information. Therefore, due to the reuse identification, a complete end-to-end connection can be established directly through the corresponding port information without releasing the established backbone network resources, and the access of the CPE and the communication of the end-to-end connection are effectively realized.
As shown in fig. 4, an end-to-end connection establishing method according to an embodiment of the present invention includes:
The end-to-end connection establishment method of the embodiment of the invention can be applied to the DC, and through the steps, the DC feeds back the corresponding port information according to the received reuse identification sent by the SC, so that the SC can establish end-to-end connection based on the port information after receiving the port information. Therefore, due to the reuse identification, a complete end-to-end connection can be established directly through the corresponding port information without releasing the established backbone network resources, and the access of the CPE and the connection of the end-to-end connection are effectively realized.
The port information is obtained by the DC under the condition that the received reuse identifier indicates to reuse the established backbone network resource, so as to feed back the port information to the SC, thereby reusing the established backbone network resource chain to complete the establishment of the end-to-end connection.
Optionally, step 401 comprises:
receiving an end-to-end connection request sent by the inter-domain controller, wherein the end-to-end connection request includes backbone network reuse information, and the reuse identifier is located in a preset field of connection service interface information created in the end-to-end connection request.
Here, corresponding to the sending of the end-to-end connection request of the SC of the previous embodiment, the DC obtains the reuse flag in the preset field of the interface information of the created connection service by receiving the end-to-end connection request. The reuse identifier is located in a preset field of createconnectiveyservice interface information in the end-to-end connection request, as shown in the above table 1, and is not described herein again.
In addition, the DC reserves applicable backbone network resources for cooperating with the SC implementation, before step 401, further includes:
receiving a backbone network resource occupation request sent by an inter-domain controller;
and allocating the backbone network resources according to the backbone network resource occupation request, and feeding back backbone network resource allocation information to the inter-domain controller.
Here, the specific information item of the backbone network resource occupation request corresponds to the private line subscription information, so that the reserved backbone network resources meet the customer requirements. The backbone network resource configuration information comprises specific resource configuration items such as a route, a source/sink port, a bandwidth or a signal type of the established connection. Therefore, the DC performs backbone network resource configuration based on the backbone network resource occupation request, reserves backbone network resources for customers to use, and feeds back backbone network resource configuration information to the SC, so as to complete the construction and deployment of the CPE and the metropolitan area network equipment based on the backbone network resource configuration information, and connect the CPE or the corresponding metropolitan area network equipment to a line side port.
In addition, to ensure that more suitable reuse resources are provided to the CPE, the SC preferably selects and informs each DC of the selection to know the port information of the response. Optionally, the backbone network reuse information further includes: and the reused backbone network resource identification.
Here, after the reused backbone network resource identifier is selected as the SC, the reused resource is designated for establishing the current end-to-end connection, so that the DC returns port information required for establishing the connection.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
The identifier of the reused backbone network resource is located in the preset field of the topologyconstrainent type information, as shown in table 2 above, and is not described herein again.
Therefore, further, before step 402, the method further includes:
and under the condition that the reuse identification indicates that the established backbone network resource is reused, searching the information of the external line side port according to the received reused backbone network resource identification, and taking the information of the external line side port as port information.
To sum up, the end-to-end connection establishment method according to the embodiment of the present invention feeds back the corresponding port information according to the received reuse identifier sent by the SC, so that the SC can establish the end-to-end connection based on the port information after receiving the port information. Therefore, due to the reuse identification, a complete end-to-end connection can be established directly through the corresponding port information without releasing the established backbone network resources, and the access of the CPE and the communication of the end-to-end connection are effectively realized.
It should be noted that the end-to-end connection establishment method of the embodiment of the present invention is a method for implementing end-to-end connection establishment by matching with the end-to-end connection establishment method of the previous embodiment, and the implementation manner of the end-to-end connection establishment method of the previous embodiment is correspondingly applicable to the method, and can achieve the same technical effect.
As shown in fig. 5, the inter-domain controller 500 according to an embodiment of the present invention includes a first processor 510 and a first transceiver 520, wherein,
the first transceiver 510 is configured to send backbone reuse information to an intradomain controller, where the backbone reuse information includes: a reuse flag for indicating whether to reuse an established backbone network resource; receiving port information fed back by the intra-domain controller according to the reuse identifier;
the first processor 510 is configured to establish an end-to-end connection according to the port information.
Optionally, the first transceiver 520 is further configured to send an end-to-end connection request to an intradomain controller, where the end-to-end connection request includes the backbone network reuse information, and the reuse identifier is located in a preset field of the end-to-end connection request, where the preset field creates connection service interface information.
Optionally, the backbone network reuse information further includes: and identifying the reused backbone network resources.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
Optionally, the first transceiver 520 is further configured to receive port information fed back by the intra-domain controller when the reuse identifier indicates to reuse an established backbone network resource, where the port information is information of an external line-side port that is found by the intra-domain controller based on the reused backbone network resource identifier.
Optionally, the first processor 510 is further configured to access the reused backbone network resource to the target user equipment according to the port information.
Optionally, the first transceiver 520 is further configured to send a backbone network resource occupation request to the intra-domain controller according to the private line subscription information; and receiving backbone network resource configuration information fed back by the intra-domain controller according to the backbone network resource occupation request.
The inter-domain controller of this embodiment first sends the backbone network reuse information including the reuse identifier to the DC, so that the DC feeds back the corresponding port information according to the reuse identifier, and after receiving the port information, the SC can establish an end-to-end connection based on the port information. Therefore, due to the reuse identification, a complete end-to-end connection can be established directly through the corresponding port information without releasing the established backbone network resources, and the access of the CPE and the communication of the end-to-end connection are effectively realized.
As shown in fig. 6, the intra-domain controller 600 according to an embodiment of the present invention includes a second processor 610 and a second transceiver 620, wherein,
the second transceiver 620 is configured to receive backbone network reuse information sent by an inter-domain controller, where the backbone network reuse information includes: a reuse identifier for indicating whether to reuse an established backbone network resource; and sending the port information corresponding to the reuse identifier to the inter-domain controller.
Optionally, the second transceiver 620 is further configured to receive an end-to-end connection request sent by the inter-domain controller, where the end-to-end connection request includes the backbone network reuse information, and the reuse identifier is located in a preset field of the end-to-end connection request, where the preset field creates connection service interface information.
Optionally, the backbone network reuse information further includes: and identifying the reused backbone network resources.
Optionally, a preset field of the topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identifier.
Optionally, the second processor 610 is configured to, when the reuse identifier indicates to reuse an established backbone network resource, find information of an external line-side port according to the received reused backbone network resource identifier, and use the information of the external line-side port as port information.
Optionally, the second transceiver 620 is further configured to receive a backbone network resource occupation request sent by an inter-domain controller;
the second processor 610 is further configured to configure backbone network resources according to the backbone network resource occupation request, and feed back backbone network resource configuration information to the inter-domain controller.
The intra-domain controller of the embodiment of the invention feeds back the corresponding port information according to the received reuse identifier sent by the SC, so that the SC can establish end-to-end connection based on the port information after receiving the port information. Therefore, due to the reuse identification, a complete end-to-end connection can be established directly through the corresponding port information without releasing the established backbone network resources, and the access of the CPE and the connection of the end-to-end connection are effectively realized.
An inter-domain controller according to another embodiment of the present invention comprises a transceiver 710, a memory 720, a processor 700, and a computer program stored in the memory 720 and executable on the processor 700; the processor 700, when executing the computer program, implements an end-to-end connection establishment method as applied to an inter-domain controller as described above.
The transceiver 710 is used for receiving and transmitting data under the control of the processor 700.
The bus architecture may include, among other things, any number of interconnected buses and bridges, with one or more processors, represented by processor 700, and various circuits of memory, represented by memory 720, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
An intra-domain controller according to another embodiment of the present invention includes a transceiver 810, a memory 820, a processor 800, and a computer program stored in the memory 820 and operable on the processor 800; the processor 800, when executing the computer program, implements the end-to-end connection establishment method as described above using an intradomain controller.
A transceiver 810 for receiving and transmitting data under the control of the processor 800.
In fig. 8, a bus architecture (represented by bus 840), the bus 840 may include any number of interconnected buses and bridges that link together various circuits including one or more processors, represented by the processor 800, and memory, represented by the memory 820. The bus 840 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 850 provides an interface between the bus 840 and the transceiver 810. The transceiver 810 may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by processor 800 may be transmitted over a wireless medium via antenna 860, and further, antenna 860 may receive data and transmit data to processor 800.
The processor 800 is responsible for managing the bus 840 and general processing, and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 820 may be used to store data used by processor 800 in performing operations.
A computer-readable storage medium according to an embodiment of the present invention stores thereon a computer program, and when executed by a processor, the computer program implements the steps in the end-to-end connection establishment method applied to an inter-domain controller, or implements the steps in the end-to-end connection establishment method applied to an intra-domain controller, and can achieve the same technical effects, and therefore, the detailed description is omitted here to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It is further noted that the terminals described in this specification include, but are not limited to, smart phones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.
In embodiments of the present invention, modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
When a module can be implemented by software, considering the level of hardware technology, a module implemented in software may build a corresponding hardware circuit to implement corresponding functions, without considering the cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
The exemplary embodiments described above are described with reference to the drawings, and many different forms and embodiments of the invention may be made without departing from the spirit and teachings of the invention, and therefore, the invention should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of elements may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values, when stated, includes the upper and lower limits of the range and any subranges therebetween.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (27)
1. An end-to-end connection establishment method applied to an inter-domain controller, comprising:
sending backbone network reuse information to an intra-domain controller, wherein the backbone network reuse information comprises: a reuse identifier for indicating whether to reuse an established backbone network resource;
receiving port information fed back by the intra-domain controller according to the reuse identifier;
establishing end-to-end connection according to the port information;
the establishing of the end-to-end connection according to the port information includes:
and accessing the target user equipment to the reused backbone network resource according to the port information.
2. The method of claim 1, wherein sending backbone reuse information to an intradomain controller comprises:
sending an end-to-end connection request to an intra-domain controller, wherein the end-to-end connection request comprises the backbone network reuse information, and the reuse identifier is located in a preset field of the end-to-end connection request for creating connection service interface information.
3. The method of claim 1 or 2, wherein the backbone network reuse information further comprises: and the reused backbone network resource identification.
4. The method of claim 2, wherein a preset field of topology constraint class information in the end-to-end connection request specifies a backbone network resource identity for reuse.
5. The method of claim 3, wherein receiving port information fed back by the intra-domain controller according to the reuse identification comprises:
receiving port information fed back by the intra-domain controller under the condition that the reuse identification indicates to reuse the established backbone network resource, wherein the port information is information of an external line side port searched by the intra-domain controller based on the reused backbone network resource identification.
6. The method of claim 1, wherein prior to sending backbone reuse information to an intradomain controller, further comprising:
sending a backbone network resource occupation request to the intra-domain controller according to the private line subscription information;
and receiving backbone network resource configuration information fed back by the intra-domain controller according to the backbone network resource occupation request.
7. An end-to-end connection establishment method applied to an intradomain controller, comprising:
receiving backbone network reuse information sent by an inter-domain controller, wherein the backbone network reuse information comprises: a reuse flag for indicating whether to reuse an established backbone network resource;
and sending the port information corresponding to the reuse identifier to the inter-domain controller, so that the inter-domain controller accesses the target user equipment to the reused backbone network resource according to the port information.
8. The method of claim 7, wherein receiving backbone reuse information sent by an inter-domain controller comprises:
receiving an end-to-end connection request sent by the inter-domain controller, wherein the end-to-end connection request includes backbone network reuse information, and the reuse identifier is located in a preset field of connection service interface information created in the end-to-end connection request.
9. The method of claim 7 or 8, wherein the backbone reuse information further comprises: and the reused backbone network resource identification.
10. The method of claim 8, wherein a preset field of topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identification.
11. The method of claim 9, wherein prior to sending the port information corresponding to the reuse identification to the inter-domain controller, further comprising:
and under the condition that the reuse identification indicates that the established backbone network resource is reused, searching the information of the external line side port according to the received reused backbone network resource identification, and taking the information of the external line side port as port information.
12. The method of claim 7, further comprising, prior to receiving backbone reuse information sent by an inter-domain controller:
receiving a backbone network resource occupation request sent by an inter-domain controller;
and configuring backbone network resources according to the backbone network resource occupation request, and feeding back backbone network resource configuration information to the inter-domain controller.
13. An inter-domain controller comprising a first processor and a first transceiver, wherein,
the first transceiver is configured to send backbone reuse information to an intradomain controller, the backbone reuse information comprising: a reuse flag for indicating whether to reuse an established backbone network resource; receiving port information fed back by the intra-domain controller according to the reuse identifier;
the first processor is used for establishing end-to-end connection according to the port information;
the establishing of the end-to-end connection according to the port information comprises the following steps:
and accessing the target user equipment to the reused backbone network resource according to the port information.
14. The interdomain controller of claim 13,
the first transceiver is further configured to send an end-to-end connection request to an intradomain controller, where the end-to-end connection request includes the backbone network reuse information, and the reuse identifier is located in a preset field of the end-to-end connection request that creates connection service interface information.
15. The inter-domain controller of claim 13 or 14, wherein the backbone reuse information further comprises: and identifying the reused backbone network resources.
16. The inter-domain controller of claim 14, wherein a preset field of topology constraint class information in the end-to-end connection request specifies a reused backbone network resource identification.
17. The interdomain controller of claim 15,
the first transceiver is further configured to receive port information fed back by the intra-domain controller when the reuse identifier indicates to reuse an established backbone network resource, where the port information is information of an external line-side port searched by the intra-domain controller based on the reused backbone network resource identifier.
18. The interdomain controller of claim 13,
the first transceiver is also used for sending a backbone network resource occupation request to the intra-domain controller according to the private line subscription information; and receiving backbone network resource configuration information fed back by the intra-domain controller according to the backbone network resource occupation request.
19. An intradomain controller comprising a second processor and a second transceiver, wherein,
the second transceiver is configured to receive backbone network reuse information sent by an inter-domain controller, where the backbone network reuse information includes: a reuse identifier for indicating whether to reuse an established backbone network resource; and sending the port information corresponding to the reuse identifier to the inter-domain controller, so that the inter-domain controller accesses the target user equipment to the reused backbone network resource according to the port information.
20. The inter-domain controller of claim 19,
the second transceiver is further configured to receive an end-to-end connection request sent by the inter-domain controller, where the end-to-end connection request includes the backbone network reuse information, and the reuse identifier is located in a preset field in the end-to-end connection request, where the preset field creates connection service interface information.
21. The intradomain controller of claim 19 or 20, wherein the backbone reuse information further comprises: and identifying the reused backbone network resources.
22. The intradomain controller of claim 20, wherein a preset field of topology constraint class information in the end-to-end connection request specifies a backbone network resource identity for reuse.
23. The inter-domain controller of claim 21,
the second processor is configured to, in a case where the reuse identifier indicates to reuse an established backbone network resource, find information on the external line side port according to the received reused backbone network resource identifier, and use the information on the external line side port as port information.
24. The intradomain controller of claim 19,
the second transceiver is also used for receiving a backbone network resource occupation request sent by the inter-domain controller;
the second processor is further configured to configure backbone network resources according to the backbone network resource occupation request, and feed back backbone network resource configuration information to the inter-domain controller.
25. An inter-domain controller comprising a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the computer program, implements the end-to-end connection establishment method according to any of claims 1-6.
26. An intra-domain controller comprising a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the computer program, implements the end-to-end connection establishment method according to any of claims 7-12.
27. A computer readable storage medium, having stored thereon a computer program, characterized in that the computer program, when being executed by a processor, carries out the steps of the end-to-end connection set-up method according to any one of claims 1-6, or carries out the steps of the end-to-end connection set-up method according to any one of claims 7-12.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863140A (en) * | 2005-07-22 | 2006-11-15 | 华为技术有限公司 | Method for improving network resource utilization ratio of wireless communication system |
| CN1988510A (en) * | 2006-12-28 | 2007-06-27 | 北京交通大学 | IPv4/IPv6 double stack IP-DSLAM system and realizing method |
| CN102025702A (en) * | 2009-09-17 | 2011-04-20 | 中兴通讯股份有限公司 | Network based on identity and position separation frame, and backbone network and network element thereof |
| CN103491015A (en) * | 2013-09-06 | 2014-01-01 | 杭州华三通信技术有限公司 | Method and device for allowing public network to support data multicast distribution tree |
| CN104754423A (en) * | 2013-12-30 | 2015-07-01 | 深圳键桥通讯技术股份有限公司 | MINI CMTS (Cable Modem Termination System) of integrating IPQAM (Internet Protocol Quadrature Amplitude Modulation) and DOCSIS (Data Over Cable System Interface Specification) |
| CN106059994A (en) * | 2016-04-29 | 2016-10-26 | 华为技术有限公司 | Data transmission method and network equipment |
| CN106470142A (en) * | 2015-08-14 | 2017-03-01 | 中国电信股份有限公司 | The self-service generation method of virtual network topology and system |
| CN108092893A (en) * | 2017-12-20 | 2018-05-29 | 中国联合网络通信集团有限公司 | A kind of special line activating method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9866300B2 (en) * | 2015-10-29 | 2018-01-09 | Spatial Digital Systems, Inc. | Wavefront multiplexing in passive optical network with remote digital beam forming |
-
2018
- 2018-10-31 CN CN201811284745.XA patent/CN111131350B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863140A (en) * | 2005-07-22 | 2006-11-15 | 华为技术有限公司 | Method for improving network resource utilization ratio of wireless communication system |
| CN1988510A (en) * | 2006-12-28 | 2007-06-27 | 北京交通大学 | IPv4/IPv6 double stack IP-DSLAM system and realizing method |
| CN102025702A (en) * | 2009-09-17 | 2011-04-20 | 中兴通讯股份有限公司 | Network based on identity and position separation frame, and backbone network and network element thereof |
| CN103491015A (en) * | 2013-09-06 | 2014-01-01 | 杭州华三通信技术有限公司 | Method and device for allowing public network to support data multicast distribution tree |
| CN104754423A (en) * | 2013-12-30 | 2015-07-01 | 深圳键桥通讯技术股份有限公司 | MINI CMTS (Cable Modem Termination System) of integrating IPQAM (Internet Protocol Quadrature Amplitude Modulation) and DOCSIS (Data Over Cable System Interface Specification) |
| CN106470142A (en) * | 2015-08-14 | 2017-03-01 | 中国电信股份有限公司 | The self-service generation method of virtual network topology and system |
| CN106059994A (en) * | 2016-04-29 | 2016-10-26 | 华为技术有限公司 | Data transmission method and network equipment |
| CN108092893A (en) * | 2017-12-20 | 2018-05-29 | 中国联合网络通信集团有限公司 | A kind of special line activating method and device |
Non-Patent Citations (5)
| Title |
|---|
| ATM交换网络的相关分析;任琛;《中国新通信》;20060120(第01期);全文 * |
| MPLS VPN技术在电力综合数据网中的应用;李丞;《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》;20141031;全文 * |
| Software-defined networks and network functions virtualization in wireline access networks;Bartek Kozicki;《IEEE》;20150319;全文 * |
| 基于IP骨干网的虚拟专用网理论与实现;李秀忠;《中国工程科学》;20020330(第03期);全文 * |
| 基于MPLS的VPN技术;王曦瀚;《现代电信科技》;20040325(第03期);全文 * |
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