CN213585809U - Special line system - Google Patents

Abstract

The utility model provides a special line system is favorable to realizing the quick configuration of special line, has effectively improved the configuration efficiency of special line, has reduced the configuration cost of special line. The private line system includes: a first convergence network element in a first network is in butt joint with a third convergence network element in a second network through a physical port, and a second convergence network element in the first network is in butt joint with a fourth convergence network element in the second network through a physical port; according to VLAN distribution rules, an inner virtual local area network VLAN and an outer VLAN are distributed and deployed for the first network and the second network; and adopting a pseudo wire PW technology to interface the optical transmission network with the interfaces of the first aggregation link and the second aggregation link so as to enable the first network and the second network to be communicated with the client through the optical transmission network.

Description

Special line system

Technical Field

The utility model relates to the field of communications, especially, relate to a special line system.

Background

The current implementation schemes for operator private line configuration include two, one is that a device manufacturer implements the configuration in a network overlay manner of a service provider, and the other is that the service provider implements the configuration in a private network underlay manner.

However, the following problems exist in the actual operation process of the operator private line configuration: along with the development and the perfection of urban construction, the difficulty of coordinating and implementing optical cables is higher and higher, so that the laying timeliness of the optical cables is poor, the hidden danger that the requirement of a user on a construction period cannot be met exists, the perception of the user is influenced, meanwhile, the cost of the optical cables, the construction cost and the coordination cost are high, the cost is as high as 2 ten thousand yuan/kilometer at present, the investment recovery period of a project is directly influenced, and even a part of special line configuration projects are ended due to the problem of the cost. In addition, in order to meet the real-time response requirement of the customer, according to the requirement of operation and maintenance management, the price of the accessed Customer Premise Equipment (CPE) or Customer Premise Equipment (CPE) is high, each CPE is at least 1000 yuan, the equipment does not have a customized function and cannot be opened by one key, and part of the CPEs need field joint debugging tests of professionals, so that the difficulty of joint debugging is brought, and the opening timeliness is restricted. Therefore, it is desirable to provide a method for fast configuration of private lines.

SUMMERY OF THE UTILITY MODEL

The utility model provides a special line system is favorable to having improved the configuration efficiency of special line, has reduced the configuration cost of special line.

In a first aspect, a private line system is provided, including: a first aggregation network element and a second aggregation network element in a first network, a third aggregation network element and a fourth aggregation network element in a second network, and a network node in an optical transmission network; a first aggregation link is established between the first aggregation network element and the third aggregation network element, a second aggregation link is established between the second aggregation network element and the fourth aggregation network element, the first aggregation link is obtained by butting the first aggregation network element and the third aggregation network element through physical ports, and the second aggregation link is obtained by butting the second aggregation network element and the fourth aggregation network element through physical ports; a third aggregation link is established between the first aggregation network element and the second aggregation network element, and a fourth aggregation link is established between the third aggregation network element and the fourth aggregation network element; one end of the network node is connected to the interfaces of the first aggregation link and the second aggregation link respectively through a pseudo wire PW technology, and the other end of the network node is connected to a client, and is configured to implement service transmission between the client and the first aggregation link or the second aggregation link.

With reference to the first aspect, in a certain implementation manner of the first aspect, the inner virtual local area networks VLAN and the outer virtual local area networks VLAN of the first network and the second network are allocated and deployed according to a VLAN allocation rule, where the VLAN allocation rule includes at least one of the following: for the outer VLAN identifications between the first threshold value and the second threshold value, different VLAN identifications are sequentially distributed; using VLAN mark appointed by user as inner layer VLAN mark, and adding outer layer VLAN outside the inner layer VLAN; or, the inner VLAN identifier and the outer VLAN are set to be the same identifier.

With reference to the first aspect, in a certain implementation manner of the first aspect, in a case that an outgoing network element and an incoming network element in the first network are the same device, a cross-circuit connection CCC technique is used; or, in the case that the outgoing network element and the incoming network element in the first network are different devices, the edge-to-edge pseudo wire emulation PWE3 technology is adopted.

With reference to the first aspect, in a certain implementation manner of the first aspect, the third aggregated link is configured to switch a traffic transmission path from the first aggregated link to the third aggregated link, the second aggregated link, and the fourth aggregated link when the first aggregated link is interrupted.

With reference to the first aspect, in a certain implementation manner of the first aspect, the first network is a three-layer router network, and the second network is a two-layer switch network.

With reference to the first aspect, in a certain implementation manner of the first aspect, the first network is an IP transport network IPRAN or a packet transport network PTN, the second network is a large two-layer ring network of a fiber to the home FTTH, and the optical transmission network is an integrated service optical transmission network UTN.

With reference to the first aspect, in a certain implementation manner of the first aspect, the system further includes at least one of the following network elements: the network element in the long distance bearer network, the network element of the PeOTN or the network element of the MSAP are butted with the first network by adopting VLAN technology.

The utility model discloses a special line system assembles the network element and assembles network element interconnect with the fourth through the first net and the second that assemble in network element and the second network that assembles in the first network, realizes the butt joint of a mouthful style of calligraphy, has effectively solved the problem that the traditional special line of operator disposes the ageing low and with high costs to have high-grade SLA with traditional special line the same, simultaneously, the utility model discloses can satisfy opening of all kinds of scene special lines of region intra-area, between the region, long-distance etc. can realize the visual fortune dimension of business extension and network management.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a diagram of a typical private network architecture;

FIG. 2 is a schematic diagram of another typical private network architecture;

fig. 3 is a schematic flowchart of a private line configuration method according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a private network architecture according to an embodiment of the present invention;

fig. 5 is a schematic view of the square-shaped butt joint of each convergent network element provided by the embodiment of the present invention;

fig. 6 is a schematic view of the square-shaped butt joint of each convergent network element provided by the embodiment of the present invention;

fig. 7 is a schematic flow chart of work order acceptance provided by an embodiment of the present invention;

fig. 8 is a schematic diagram of a network architecture of a private line system according to an embodiment of the present invention;

fig. 9 is a schematic diagram of another network architecture of the private line system according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a computer device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art from the teachings of the present invention, are within the scope of the present invention.

Compared with the common access service, the private line service of the operator has the characteristics of direct connection, higher speed, higher reliability, better service and the like. The operator private line business is mostly oriented to enterprises, governments and other customers with higher data access or interconnection requirements and higher service requirements. The operator special line service generally has a fixed network IP address, does not need to carry out access authentication, not only has requirements on bandwidth and access service types in an access layer, but also can provide more detailed and detailed requirements on the whole-course whole-network service quality of the service according to the requirements of customers, and the special line customers are often supported by the operator to provide more active, comprehensive, timely and professional customer service.

For the sake of understanding, the related terms related to the present invention will be first described.

1、Overlay

Overlay in the field of network technology refers to a virtualization technology mode overlaid on a network architecture, and a general framework thereof is to implement a bearer applied to a network without large-scale modification of an underlying network, can be separated from other network services, and is based on an IP-based underlying network technology. The Overlay technology is to construct a virtual network on top of the existing physical network, and the upper layer application is only related to the virtual network.

The Overlay network comprises three parts: (1) edge equipment: refers to a device directly connected to a virtual machine; (2) a control plane: the system is mainly responsible for the establishment and maintenance of the virtual tunnel and the notification of host reachability information; (3) forwarding plane: and a physical network for bearing the Overlay message.

2、Underlay

The Underlay is a network of a current data center network basic forwarding architecture, and refers to a physical basic layer as long as any two routes on the data center network can be reached. Therefore, the Underlay network can be completed by technical improvement, expansion of the number of devices, the bandwidth scale, etc. of the physical network devices themselves, which includes all existing conventional network technologies.

3. Customer Premises Equipment (CPE)

The customer premises equipment or customer premises equipment refers to equipment with a customer front end directly connected with an operator network, refers to the position of the equipment in the network instead of the type of the equipment, and includes but is not limited to a telephone, a wireless router, a firewall, a computer, a modem, a 4G-to-WiFi wireless router and the like.

4. Multiprotocol label switching (MPLS)

Multi-protocol label switching is a framework for fast packet switching and routing that provides network data traffic with the capabilities of destination, routing address, forwarding and switching. More particularly, it has mechanisms for managing various different forms of communication flow.

5. Network protocol television (Internet protocol television, IPTV)

The network protocol television is to use a television or a personal computer as a display terminal to provide broadband services such as digital broadcast television, video service, information service, interactive community, interactive leisure and entertainment, electronic commerce and the like for users through a broadband network.

6. Integrated services optical transport network (UTN)

The integrated service optical transmission network meets the construction requirements of a large-scale video monitoring system by providing Ethernet QoS guarantee aiming at different services, and adopting a high-quality and high-reliability transmission effect and a flexible networking and organizing way, and is suitable for a long-distance, multi-service, multi-level networking and hierarchical management highway monitoring system.

7. Link aggregation technology (Eth-Trunk)

The link aggregation technology is used as a binding technology, a plurality of independent physical interfaces can be bound together to be used as a large-bandwidth logic interface, so that an interface board does not need to be replaced, IP address resources are not wasted, and according to different link aggregation modes, the Eth-Trunk interface can realize bandwidth increase, load sharing and the like, and the reliability of a network is improved.

Currently, a point-to-point dedicated line is configured with two implementation schemes, one is implemented by a device manufacturer through a network overlay of a service provider. Another is that the service provider passes through a private network, such as: synchronous Digital Hierarchy (SDH) based on synchronous time division multiplexing, Internet Protocol Radio Access Network (IPRAN) based on IP, or PTN, FTTH, etc. are implemented by means of network underlay. An underlay private line implementation is shown in fig. 1.

The service provider government market currently presents two difficulties.

One difficulty is that: last mile cable problems. This problem causes two pain points: firstly, with the development and the perfection of urban construction, the difficulty of coordination and implementation of optical cables is increased, so that the laying timeliness of the optical cables is poor, the hidden danger that the requirement of a user construction period cannot be met exists, and the perception of users is influenced; secondly, the cost of the optical cable, the construction cost and the coordination cost are high, the current cost is up to 2 ten thousand yuan/kilometer, the project investment recovery period is directly influenced, and even a part of projects are ended due to the cost problem.

Difficulty two: the special line is accessed to the customer premises equipment or customer premises equipment CPE. In order to meet the real-time response requirement of a client, according to the operation and maintenance management requirement, the CPE equipment needs to have the network management related function, so that two pain points are caused: firstly, the price of CPE equipment is high, and the price of each CPE equipment is at least 1000 yuan; secondly, the CPE equipment does not have a customized function and cannot be opened by one key, and part of CPE needs field joint debugging test of professional personnel, thereby not only bringing about the difficulty of joint debugging, but also restricting the timeliness of opening.

The two difficulties finally cause two problems of high cost and low efficiency of the special line opening of the operator.

In order to solve the above-mentioned hidden troubles, the prior art is implemented by a metropolitan area network in a mode of adding a virtual switch interface VSI and a virtual local area network VLAN or QinQ, as shown in fig. 2, a broadband access server BRAS or SR is bridged with the VLAN or QinQ through VSI, a user MAC is learned by an ONU, an OLT and an exchanger in sequence in a VLAN or QinQ broadcasting mode, and finally learned by a VSI virtual exchanger on the metropolitan area network BRAS or SR, and then the VSI is butted with the VSI of another BRAS or SR on the BRAS or SR by an MPLS technology, so that two-layer intercommunication between the user MACs is finally realized.

It should be understood that QinQ here may be an 802.1Q-in-802.1Q technique, where a user private network VLAN Tag (Tag) is encapsulated in a public network VLAN Tag, so that the message carries two layers of VLAN tags across the operator's backbone network. The broadband access server BRAS is a novel access gateway facing the broadband network application, is positioned at the edge layer of a backbone network, is a bridge between the backbone networks of the broadband access network, and is core equipment for broadband user access. The OLT is an optical line terminal, is a telecommunication local side device, and is generally directly connected to a BRAS, the ONU is an optical network unit, a plurality of ONUs can be hung under one OLT through an optical splitter, and the ONU is placed in a user home, namely, a Fiber To The Home (FTTH), and is placed in a building, namely, a Fiber To The Building (FTTB), and the like.

However, the above solution is implemented by VSI + VLAN or QinQ technology on the metropolitan area network, which itself has several problems:

1. the quality of the special line is limited: the VSI is a virtual switch, the VSI is configured on the BRAS or the SR, then the service flow is carried and the bandwidth is shared with the Internet for transmission, and no relevant QoS guarantee exists, so that the quality of a special line opened by the method is limited.

2. Two-layer loop effects: the FTTH network often has loop messages due to the user side, further broadcast storms are generated, the VSIs are virtual switches, and the broadcast storms also affect the VSIs, so that the CPU utilization rate of the BRAS or SR is increased sharply, even the BRAS or SR is down, and finally all broadband users, internet private line users and IPTV users of the metropolitan area network are affected by blocking or interruption.

3. The protection is limited: the existing technology for the butt joint protection of the BRAS or the SR and the switch in the metropolitan area network only has cross-board protection, and can not have cross-equipment protection for the time, so that when one of the BRAS or the SR and the switch fails or is upgraded and restarted, service interruption is caused.

In summary, the existing dedicated line has the defects of low time efficiency, high cost and the like. In view of this, the embodiment of the present invention provides a private line configuration method and a private line system, in which a large two-layer ring network of an operator that converges FTTH is docked with a convergence network element of an IPRAN or a PTN, then an ONU or a optical modem is opened at a client side, and finally an inner-layer VLAN of a coordinating user and an outer-layer VLAN assigned according to an outer-layer VLAN planning requirement are deployed in the FTTH and the large two-layer ring network in a QinQ manner through a service orchestrator and a controller, the QinQ is terminated at a sub-interface that converges at the docking large two-layer ring network, and the sub-interface is extended to the other end of a client access UTN node by a PW technology of a raw manner in the UTN network, so as to implement end-to-end configuration opening of an SD-WAN private line of an underlay. It should be understood that the other end described above may be a QinQ sub-interface, a single-layer VLAN sub-interface, or a physical interface.

Before introducing the method and the system for configuring a dedicated line provided by the embodiment of the present invention, the following description is made.

First, in the embodiments shown below, each term and english abbreviation are exemplary examples given for convenience of description and should not constitute any limitation of the present invention. The present invention does not exclude the possibility of defining other terms in existing or future protocols that fulfill the same or similar functions.

Second, the first, second and various numerical numbers in the embodiments shown below are merely for convenience of description and are not intended to limit the scope of the embodiments of the present invention. E.g., a first network, a second network, merely to distinguish between different networks, etc.

Third, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, and c, may represent: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, wherein a, b and c can be single or multiple.

In order to make the objects and technical solutions of the present invention clearer and more intuitive, the following will explain in detail the method and the system for configuring the dedicated line provided by the embodiments of the present invention with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 3 is a schematic flow chart of a method 300 of private line configuration in an embodiment of the invention. As shown in fig. 3, the method 300 includes the following steps:

s301, a first aggregation network element in a first network and a third aggregation network element in a second network are connected through a physical port, a second aggregation network element in the first network and a fourth aggregation network element in the second network are connected through a physical port, so as to generate a first aggregation link and a second aggregation link between the first aggregation network element and the third aggregation network element and between the second aggregation network element and the fourth aggregation network element, respectively, a third aggregation link is established between the first aggregation network element and the second aggregation network element, and a fourth aggregation link is established between the third aggregation network element and the fourth aggregation network element.

It should be appreciated that the first network may be a three-tier router network and the second network may be a two-tier switch network. Exemplarily, fig. 4 illustrates a schematic diagram of a network architecture provided by an embodiment of the present invention, in fig. 4, a first network is a three-layer router network IPRAN or PTN and a second network is a two-layer switch network FTTH or switch physical interface, where a physical port of a first aggregation network element a1 in the IPRAN or PTN and a physical port of a third aggregation network element B1 in the FTTH or switch are physically interfaced to generate a first aggregation link, a physical port of a second aggregation network element a2 in the IPRAN or PTN and a physical port of a fourth aggregation network element B2 in the FTTH or switch are interfaced to generate a second aggregation link, a third aggregation link is established between the first aggregation network element a1 and the second aggregation network element a2, and a fourth aggregation link is established between the third aggregation network element B1 and the fourth aggregation network element B2.

Specifically, the connections between the convergence network elements a1, a2, B1, B2 are square. Respectively binding respective physical ports of the first aggregation network element a1, the second aggregation network element a2, the third aggregation network element B1, and the fourth aggregation network element B2 to a first aggregation logic port, a second aggregation logic port, a third aggregation logic port, and a fourth aggregation logic port, where the first aggregation logic port, the second aggregation logic port, the third aggregation logic port, and the fourth aggregation logic port are all deployed with a static LACP; and the first aggregation logic port and the third aggregation logic port are butted to form a first aggregation logic link, and the second aggregation logic port and the fourth aggregation logic port are butted to form a second aggregation logic link.

The aggregation logical port may be an ETH-TRUNK port or a Smart-group port.

Exemplarily, fig. 5 and fig. 6 show schematic diagrams of a square-shaped docking of each aggregation network element provided by the embodiments of the present invention, assuming that a second network needs to perform traffic transmission to a first network, in a normal case, as shown in fig. 5, traffic transmission between B1 and a1 may be implemented by a first aggregation link between aggregation network elements a1 and B1, and traffic transmission between B2 and a2 may be implemented by a fourth aggregation link between aggregation network elements B1 and B2, a first aggregation link between aggregation network elements a1 and B1, and a third aggregation link between aggregation network elements a1 and a 2. However, in case that the first aggregated link between the first aggregation network element a1 in the first network and the aggregation network element B1 in the second network is broken, as shown in fig. 6, the traffic transmission path between B1 and a1 may be switched from the first aggregated link between a1 and B1 to the second aggregated link between B1 and a1, and the traffic transmission between B2 and a2 may be switched from the fourth aggregated link between B1 and B2, the first aggregated link between aggregation network elements a1 and B1, and the third aggregated link between aggregation network elements a1 and a2 to the fourth aggregated link between aggregation network elements B1 and B2, the second aggregated link between aggregation network elements B1 and a2, and the third aggregated link between aggregation network elements a2 and a 1.

It should be understood that aggregation network elements a1, a2 may be routers and aggregation network elements B1, B2 may be switches. The connections between the convergence network elements a1 and a2 and B1 and B2 in the two-side network may be the same local address, or may also be the local address deployment and docking realized by an optical cable or an optical transport network OTN system.

S302, according to a VLAN distribution rule, an inner layer virtual local area network VLAN and an outer layer VLAN are distributed and deployed for the first network and the second network.

It should be understood that, it should be noted that, a three-layer network protocol or a two-layer network protocol is deployed in the three-layer router network, and a two-layer VLAN is deployed in the two-layer switch network.

S303, interfacing an optical transmission network with interfaces of the first aggregation link and the second aggregation link by using a pseudo wire PW technology, so that the first network and the second network are communicated with a client through the optical transmission network.

The embodiment of the utility model provides an in, the first net and the second of assembling in the first network assemble the third in network element and the second network and assemble the network element and fourth and assemble the network element and realize mouthful style of calligraphy butt joint, have effectively solved the problem that the traditional special line of operator configuration is ageing low and with high costs: the special line for the optical modem can physically meet the requirements of dispatching orders on the same day and switching on the line the next day, a circuit is issued by a compiler in parallel, the average switching-on time is 2.5 days, and the efficiency is far higher than that of the traditional special line with the average switching-on time being 15 days; because the problem of the optical cable in the last kilometer is solved, the optical cable is cheap when the optical cable is handed over to a CPE box, and the opening cost of each special line can be saved by 1.6 ten thousand yuan. And because the circuit on the IPRAN or the PTN is a two-layer transparent transmission circuit, the influence of a two-layer loop on an IPRAN or a PTN network element can be effectively avoided, QoS is introduced, the quality of a private line is guaranteed, the number of PWE3 circuits of an IPRAN or PTN convergence network element can reach about 10K, and the opening of a large-scale private line service can be met. Meanwhile, the method has the advantages of strong service expandability: the IPRAN or the PTN can be communicated with the IDC network, cloud network + X service to the IDC can be realized, if internet service exists, FTTH can be opened naturally, and if voice service exists, ONU access is used, and the method is extended voice service.

As an optional embodiment, the method further includes: acquiring a work order from a service work order system, wherein the work order is used for requesting to configure a special line service; inquiring the availability of network resources and service resources required by the private line service; under the condition that the available network resources and the available service resources exist, arranging the private line service by using the network resources and the service resources to acquire configuration parameter information of the private line service; and sending the configuration parameter information to the controller of the first aggregation network element, the controller of the second aggregation network element, the controller of the third aggregation network element and the controller of the fourth aggregation network element respectively, so as to realize the configuration of the private line service.

In one possible implementation, fig. 7 shows a flow of the orchestrator configuring the private line service, including the following steps:

and S701, after the business work order system accepts the work order, the work order information is transferred to the business orchestrator.

S702, the business orchestrator receives and analyzes the information of the work orders accepted by the business work order system.

And S703, after the work order is analyzed by the service orchestrator, inquiring the availability of network resources and service resource information from the resource management system in real time.

S704, the resource management system synchronizes the information of each network resource and each service resource to the cross-professional orchestrator.

S705, if the network resource and the service resource are abnormal, the service orchestrator returns the abnormal information to the service work order system and terminates the service work order flow, or if the network resource and the service resource are normal, the service orchestrator splits the service work order and then performs unified arrangement of the services.

S706, the service orchestrator opens the sub work order flow to the IPRAN or PIN controller.

And S707, the service orchestrator opens a sub work order flow to the metropolitan area network controller.

And S708, configuring and transmitting the professional network equipment to the IPRAN or PTN network equipment.

And S709, configuring and issuing each professional network device to the metropolitan area network device.

S710, the IPRAN or PTN controller sends a receipt back to the service orchestrator.

S711, the metro network controller sends the receipt back to the service orchestrator.

And S712, the service orchestrator receives the work order, the composition and the work order service of the controller for inspection.

S713, the business work order system receives the receipt of the business orchestrator and files the work order.

As an optional embodiment, the performing, by using the network resource and the service resource, the arrangement of the private line service to obtain configuration parameter information includes: under the condition that the network outlet element and the network inlet element in the first network are the same equipment, adopting a cross circuit connection CCC technology; or, in the case that the outgoing network element and the incoming network element in the first network are different devices, the edge-to-edge pseudo wire emulation PWE3 technology is adopted.

In the embodiment of the present invention, the configuration parameters here can also be in other aspects, exemplarily, in the aspect of the private line scene, when in the private line scene of long-distance service, long-distance bearer network + IPRAN or PTN + switch + FTTH can use technology MV + PW + QinQ, long-distance PeOTN + IPRAN or PTN + switch + FTTH, can use technology VLAN + PW + QinQ. In the local metropolitan area network private line scenario, IPRAN or PTN + switch + FTTH may use the technology PW + QinQ or when MSAP + IPRAN or PTN + switch, may use the technology VLAN + PW + QinQ.

In the aspect of service QOS guarantee, QOS is deployed in the whole process of a private line, FTTH and a two-layer exchanger perform QOS deployment according to a QOS level defined by related QOS specifications in a metropolitan area network, and IPRAN or PTN can select the QOS brought by the two-layer ring network on a butted port.

In the aspect of bandwidth speed limit configuration, port on-demand speed limit is carried out on a sub-interface corresponding to the first network, and speed limit is carried out on an OLT port corresponding to the optical modem.

In the aspect of service robustness, if a ring exists in a two-layer switch, a corresponding ring node ensures that each node transparently transmits a service vlan, and ensures that normal service switching can be performed when the open loop of the two-layer ring network fails, because the tunnels above the convergence layer of the IPRAN or PTN network are already provided with HSB protection, an outer layer label has strong protection characteristics, and the only need to be emphasized is that deployment is performed according to an E-TRUNK dual-node protection mode when PW service is manufactured.

In the aspect of path optimization, the network of the IPRAN or PTN aggregation network element pair is automatically calculated through network element information, and then the logical relationship of the square type butting is obtained, so that which two switch pairs are used for bridging is further known. The IPRAN or PTN has branch straight-through routing, tunnel establishment corresponding to convergence is the shortest route of the main LSP through constraint, and therefore better service perception is provided, and capacity expansion pressure of converged uplink service flow is reduced.

As an alternative embodiment, the VLAN assignment rule includes at least one of the following: for the outer VLAN identifications between the first threshold value and the second threshold value, different VLAN identifications are sequentially distributed; using VLAN mark appointed by user as inner layer VLAN mark, and adding outer layer VLAN outside the inner layer VLAN; alternatively, the inner VLAN id and the outer VLAN id are the same id.

Illustratively, the outer VLAN ID is 1000 to 1999, and non-conflicting VLAN IDs are sequentially assigned, and if the user specifies a VLAN ID, the user VLAN ID is an inner VLAN, and meanwhile, the outer VLAN ID is added, and if the user does not specify a VLAN ID, the user VLAN ID is identical to the outer VLAN ID.

As an optional embodiment, the first network is an IP transport network IPRAN or a packet transport network PTN, the second network is a large two-layer ring network of fiber to the home FTTH, and the optical transport network is an integrated service optical transport network UTN.

As an optional embodiment, the method further includes: interfacing at least one of the following networks with the first network using VLAN technology or MV technology: long distance bearer network, public switched telephone network PeOTN, or MSAP.

The special line system provided by the embodiment of the present invention will be described in detail below with reference to fig. 8. As shown in fig. 8, a first aggregation network element and a second aggregation network element in a first network, a third aggregation network element and a fourth aggregation network element in a second network, and a network node in an optical transmission network; a first aggregation link is established between the first aggregation network element and the third aggregation network element, a second aggregation link is established between the second aggregation network element and the fourth aggregation network element, the first aggregation link is obtained by butting the first aggregation network element and the third aggregation network element through physical ports, and the second aggregation link is obtained by butting the second aggregation network element and the fourth aggregation network element through physical ports; a third aggregation link is established between the first aggregation network element and the second aggregation network element, and a fourth aggregation link is established between the third aggregation network element and the fourth aggregation network element; one end of the network node is connected to the interfaces of the first aggregation link and the second aggregation link respectively through a pseudo wire PW technology, and the other end of the network node is connected to a client, and is configured to implement service transmission between the client and the first aggregation link or the second aggregation link.

It should be appreciated that the first network is a three-tier router network and the second network is a two-tier switch network.

Exemplarily, fig. 9 is a network architecture diagram of a private line system provided by an embodiment of the present invention. As shown in fig. 9, the packet core network in the figure corresponds to the first network in fig. 8, where aggregation gateway aggregation layers ASG 1 and ASG 2(aggregation layers, ASGs) correspond to the first aggregation network element and the second aggregation network element in the first network, and it should be understood that the aggregation gateway aggregation layer ASG here is an information aggregation point of a building group or a cell, and is a network device that connects an access layer and a core layer, and provides aggregation, transmission, management, and distribution processing of data for the access layer, and has a function of aggregating information, providing access to a broadband network for a user, and implementing interworking between a narrowband and a broadband and conversion of media signals at the network layer. The base station side gateways CSG 1 and CSG 2(cell site gateways, CSG) respectively correspond to the third aggregation network element and the fourth aggregation network element in the second network. The optical line terminals OLT 1, OLT 2, the optical network units OUN, and the splitter (splitter) in fig. 10 are all comprised in the above-mentioned optical transmission network.

It should be understood that, for details of the specific implementation of the private line system provided in this embodiment, reference may be made to the description in the foregoing related method embodiments, and details are not described herein.

As an optional embodiment, the inner virtual local area networks VLAN and the outer virtual local area networks VLAN and VLAN of the first network and the second network are allocated and deployed according to a VLAN allocation rule, where the VLAN allocation rule includes at least one of the following: for the outer VLAN identifications between the first threshold value and the second threshold value, different VLAN identifications are sequentially distributed; using VLAN mark appointed by user as inner layer VLAN mark, and adding outer layer VLAN outside the inner layer VLAN; or, the inner VLAN identifier and the outer VLAN are set to be the same identifier.

As an optional embodiment, in a case that the outgoing network element and the incoming network element in the first network are the same device, a cross circuit connection CCC technique is adopted; or, in the case that the outgoing network element and the incoming network element in the first network are different devices, the edge-to-edge pseudo wire emulation PWE3 technology is adopted.

As an optional embodiment, the third aggregation link is configured to switch a traffic transmission path from the first aggregation link to the third aggregation link, the second aggregation link, and the fourth aggregation link when the first aggregation link is interrupted.

As an alternative embodiment, the first network is a three-layer router network, and the second network is a two-layer switch network.

As an optional embodiment, the first network is an IP transport network IPRAN or a packet transport network PTN, the second network is a large two-layer ring network of a fiber to the home FTTH, and the optical transport network is an integrated service optical transport network UTN.

As an optional embodiment, the system further includes at least one of the following network elements: the network element in the long distance bearer network, the network element of the PeOTN or the network element of the MSAP are butted with the first network by adopting VLAN technology.

Fig. 10 is a schematic structural diagram of a computer device according to an embodiment of the present invention. As shown in fig. 10, the present embodiment provides a computer apparatus 1000 including: at least one processor 1001 and memory 1002. The processor 1001 and the memory 1002 are connected to each other via a bus 1003.

In a specific implementation process, the at least one processor 1001 executes the computer execution instructions stored in the memory 1002, so that the at least one processor 1001 executes the private line configuration method in the foregoing method embodiment.

The processor 1001 is configured to interface a first aggregation network element in a first network and a third aggregation network element in a second network through physical ports, interface a second aggregation network element in the first network and a fourth aggregation network element in the second network through physical ports, and generate a first aggregation link and a second aggregation link between the first aggregation network element and the third aggregation network element and between the second aggregation network element and the fourth aggregation network element respectively, where a third aggregation link is established between the first aggregation network element and the second aggregation network element, and a fourth aggregation link is established between the third aggregation network element and the fourth aggregation network element; the processor 1001 allocates and deploys an inner virtual local area network VLAN and an outer VLAN for the first network and the second network according to a VLAN allocation rule; and adopting a pseudo wire PW technology to interface an optical transmission network with the interfaces of the first aggregation link and the second aggregation link, so that the first network and the second network are communicated with a client through the optical transmission network.

Optionally, the processor 1001 is configured to obtain a work order from a service work order system, where the work order is used to request configuration of a private line service; inquiring the availability of network resources and service resources required by the private line service; under the condition that the available network resources and the available service resources exist, arranging the private line service by using the network resources and the service resources to acquire configuration parameter information of the private line service; and sending the configuration parameter information to the controller of the first convergence network element, the controller of the second convergence network element, the controller of the third convergence network element and the controller of the fourth convergence network element, respectively, so as to implement the configuration of the private line service.

Optionally, the arranging the private line service by using the network resource and the service resource to obtain configuration parameter information includes: under the condition that the network outlet element and the network inlet element in the first network are the same equipment, adopting a cross circuit connection CCC technology; or, in the case that the outgoing network element and the incoming network element in the first network are different devices, the edge-to-edge pseudo wire emulation PWE3 technology is adopted.

Optionally, the VLAN assignment rule includes at least one of: for the outer VLAN identifications between the first threshold value and the second threshold value, different VLAN identifications are sequentially distributed; using VLAN mark appointed by user as inner layer VLAN mark, and adding outer layer VLAN outside the inner layer VLAN; alternatively, the inner VLAN id and the outer VLAN id are the same id.

Optionally, the first network is an IP transport network IPRAN or a packet transport network PTN, the second network is a large two-layer ring network of fiber to the home FTTH, and the optical transport network is an integrated service optical transport network UTN.

Optionally, the processor 1001 is configured to interface at least one of the following networks with the first network by using VLAN technology: long distance bearing network, public telephone exchange network PeOTN, or multi-service access platform MSAP.

In the embodiment shown in fig. 10, it is understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in the hardware processor, or in a combination of the hardware and software modules within the processor.

The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.

The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For convenience of illustration, the buses in the drawings of the present invention are not limited to only one bus or one type of bus.

Another embodiment of the present invention provides a computer-readable storage medium, in which computer execution instructions are stored, and when a processor executes the computer execution instructions, the network networking method in the foregoing method embodiment is implemented.

The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuit (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. A private line system, comprising:

a first aggregation network element and a second aggregation network element in a first network, a third aggregation network element and a fourth aggregation network element in a second network, and a network node in an optical transmission network;

a first aggregation link is established between the first aggregation network element and the third aggregation network element, a second aggregation link is established between the second aggregation network element and the fourth aggregation network element, the first aggregation link is obtained by butting the first aggregation network element and the third aggregation network element through physical ports, and the second aggregation link is obtained by butting the second aggregation network element and the fourth aggregation network element through physical ports;

a third aggregation link is established between the first aggregation network element and the second aggregation network element, and a fourth aggregation link is established between the third aggregation network element and the fourth aggregation network element;

one end of the network node is connected with the interfaces of the first aggregation link and the second aggregation link respectively through a pseudo wire PW technology, and the other end of the network node is connected with a client and used for realizing service transmission between the first aggregation link or the second aggregation link and the client.

2. The system of claim 1, wherein the inner Virtual Local Area Network (VLAN) and outer VLAN of the first network and the second network are assigned and deployed according to VLAN assignment rules that include at least one of:

for the outer VLAN identifications between the first threshold value and the second threshold value, different VLAN identifications are sequentially distributed;

taking a VLAN mark appointed by a user as a mark of an inner layer VLAN, and adding an outer layer VLAN outside the inner layer VLAN; alternatively, the first and second electrodes may be,

and setting the inner VLAN identification and the outer VLAN to be the same identification.

3. The system according to claim 1, wherein in case the outgoing network element and the incoming network element in the first network are the same device, cross-circuit connection CCC technique is used; alternatively, the first and second electrodes may be,

and adopting an edge-to-edge pseudo wire emulation PWE3 technology under the condition that the outgoing network element and the incoming network element in the first network are different devices.

4. The system according to claim 1, wherein the third aggregation link is configured to switch a traffic transmission path from the first aggregation link to the third aggregation link, the second aggregation link, and the fourth aggregation link when the first aggregation link is interrupted.

5. The system of claim 1, wherein the first network is a three-tier router network and the second network is a two-tier switch network.

6. The system according to claim 1, wherein the first network is an IP transport network IPRAN or a packet transport network PTN, the second network is a large two-layer ring network of fiber to the home FTTH, and the optical transport network is an integrated services optical transport network UTN.

7. The system according to any of claims 1 to 6, characterized in that the system further comprises at least one of the following network elements:

the network element in the long distance bearer network, the network element of the public switched telephone network PeOTN or the network element of the MSAP are butted with the first network by adopting VLAN technology.

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