CN114245244B

CN114245244B - Complex service arrangement method, storage medium and device based on networking topology

Info

Publication number: CN114245244B
Application number: CN202111618794.4A
Authority: CN
Inventors: 廉作锋
Original assignee: Anhui Wantong Post And Telecommunications Co ltd
Current assignee: Anhui Wantong Post And Telecommunications Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2023-06-16
Anticipated expiration: 2041-12-28
Also published as: CN114245244A

Abstract

The invention discloses a complex service arrangement method, a storage medium and equipment based on networking topology, wherein the method comprises the following steps: bandwidth is less than or equal to 500M scene. CPE access network elements are PTN devices (divided into 6 sub-scenarios). The service mode is that the client accesses 180P, opens EVPL service, NNI port configures LSP1:1 protection, and configures PW speed limit. And accessing convergence 3900 to configure EOO service, mapping a plurality of VLANs to the same ODU0, making other 3900 in the ring to cross the ODU0, configuring EOO service by using ring exit 3900, respectively resolving the ODU0 coming from two directions to GE ports, using the GE ports as NNI interfaces, configuring LSP1:1 protection with clients 180P, configuring PW speed limit, and interconnecting UNI out GE and 3900F. 3900F configures EOS traffic, maps VLAN to different VCs, VC- > STM-16- > ODU1, and turns on LMSP 1+1 protection with MUX. The invention can solve the problem that the traditional network manager can not open PO fusion equipment and business.

Description

Complex service arrangement method, storage medium and device based on networking topology

Technical Field

The present invention relates to the field of computer network communication technologies, and in particular, to a method, a storage medium, and an apparatus for orchestrating complex services based on a networking topology.

Background

PTN (packet transport network ) refers to such an optical transport network architecture and specific technology: a layer is arranged between IP service and bottom layer optical transmission medium, it is designed according to the burstiness of packet service flow and the requirement of statistical multiplexing transmission, uses packet service as core and supports multi-service provision, has lower total use cost (TCO), and inherits the traditional advantages of optical transmission, including high availability and reliability, high-efficiency bandwidth management mechanism and flow engineering, convenient OAM and network management, expandability, higher security, etc.

An optical transport network (optical transport network) is abbreviated as OTN, a type of network, and refers to a transport network that implements transport, multiplexing, routing, and monitoring of service signals in an optical domain, and ensures performance indexes and survivability thereof.

Typically, PTN traffic is carried over LSP (Label Switching Path) and messaging is done over the operator network by MPLS label switching. With the development of network technology, some operators need to perform photoelectric conversion under high bandwidth due to the requirement of bandwidth, and the bandwidth is fully utilized by dividing optical signals into small granularity. Thus, the topology networking in reality is very complex, and the arrangement method of the service networking mode for processing the traditional PTN cannot be completed.

Therefore, it is necessary to provide a complex service arrangement method based on networking topology, which simply and effectively arranges the networking of the complex topology, so that the network manager can efficiently open and monitor the service of the networking.

Disclosure of Invention

The invention provides a complex service arrangement method, a storage medium and equipment based on networking topology, which can at least solve one of the technical problems in the background technology.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

when the bandwidth is less than or equal to 500M, the method comprises the following steps,

step 1, a customer accesses PTN 180P equipment to start EVPL service, NNI port configures LSP1:1 protection and PW speed limit;

step 2, accessing convergence 3900 configuration EOO service, mapping a plurality of VLANs to the same ODU0;

step 3, making other 3900 in the ring to be ODU0 crossed;

step 4, looping out 3900 configuration EOO service, respectively solving ODU0 from two directions to GE ports, wherein the GE ports are used as NNI interfaces, configuring LSP1:1 protection with clients 180P, configuring PW speed limit, and interconnecting UNI out GE and 3900F;

step

5, 3900F configures EOS service, maps VLAN to different VCs, VC- > STM-16- > ODU1, and opens LMSP 1+1 protection with MUX.

Further, when the bandwidth is more than 500M and the bandwidth is less than 1G, the method comprises the following steps,

step 1, a client accesses 1800-B2L2, GE reaches ODU0, the SNCP protection of the ODU0 is started, the speed limit of an access port of a client port is configured, the 2A1Z protection is not started by a single-hanging 1800, and the SNCP protection of 2A1Z is started on opposite end 3900 equipment;

step 2, the access convergence 3900 configures the cross EOO traffic from ODU0 to ODU0;

step 3, other 3900 in the ring configures the cross EOO traffic from ODU0 to ODU0;

step 4, looping 3900 out a cross EOO service from ODU0 to ODU0;

step

5, 3900F configures the cross EOO service from ODU0 to ODU0, and starts the protection of 2 A2Z.

Further, the apparatus includes: different protocols adopted by

different devices

180P,1800,3900 and 3900F are different, so that PTN and OTN device services are converted, and management and maintenance of the protocols SNMP, TELNET, NETCONF are supported;

customer access device types are divided into PTN 180P and OTN1800, followed by scalable PO fusion device 3900;

the topology position of the client access is divided into a single hanging part, a double hanging part, a convergence part 3900, a ring 3900 and a ring 3900.

In yet another aspect, the invention also discloses a computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the method as described above.

In yet another aspect, the invention also discloses a computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the method as above.

According to the technical scheme, the complex service arrangement method based on the networking topology relates to the traditional PTN, OTN technology and POTN hybrid networking arrangement. The method mainly solves the problem that the traditional network manager cannot open PO fusion equipment and business. And dividing the video into 2 large scenes and 16 sub scenes according to the size of the service bandwidth.

Specifically, the invention has the following technical characteristics:

item customization, but the code needs to be completely isolated so as not to affect the original functionality. To this particular networking requirement. The traditional network management is not satisfied or suitable for the scene, and multiplexing cannot be achieved, so that customized development is needed, and the later maintenance and upgrading are facilitated.

Classification is based on sub-scenarios/topologies, and "divide and conquer" is performed on complex problems. The complex networking involves a plurality of device types, the interconnection of devices without communication protocol, the exchange of services and the like, and the processing of topological model molecular types is required to be abstracted.

And (3) splitting and arranging the layered service, and introducing the VCTON service on the basis of the original service. And adding an OTN service cross function on the original PTN service. And adding the segmented service into the complete end-to-end service to splice the segmented service into a new end-to-end service.

Registry driver+spring IOC: the method has the advantages that the scenes are identified, business codes of different scenes are isolated, and the original functions are not affected by introducing new scenes or modifying characteristic scenes.

"template" design mode: and identifying, defining and multiplexing public flows, and enabling each scene to be customized by reloading the special networking modes.

Main government and enterprise private lines of the existing operators are divided into four types according to network bearing platforms to adapt to government and enterprise clients with different grades and different services:

l OTN special line: large-particle data private line service mainly suitable for high-end customers focusing on quality

2 SDH special line: medium and small particle data special line service for high-end customer mainly focusing quality

3 PTN special line: data private line and internet private line service mainly suitable for middle-high end customer

4 PON special line: the method is mainly suitable for the internet private line, voice private line and data private line services of low-end clients

At present, SDH is faced with network withdrawal or purchasing restriction, and a high-value low-speed special line needs a rigid, low-time-delay and high-reliability platform to replace load bearing. The market competition of private lines is very strong, and the service cost is high, so that a packet network with flexible networking and high bandwidth utilization rate is required. Based on the analysis, the Fujian mobile is on the existing network technology level, and a special line comprehensive access platform-SSAP (Smart Service Access Platform) is proposed, as shown in fig. 1. SSAP has the following characteristics:

1. based on SDN architecture construction, the control plane is compatible with SOTN and SPTN, and the forwarding plane is compatible with VC-OTN and miniaturized PTN

2. A device integrating three technologies of PTN, OTN and SDH; seven terminal access devices are integrated into one type, and function integration is realized on one type of device by configuring different boards

3. The HUB is arranged in a customer computer room or a customer convergence head

4. The centralized controller is built by matching with an SC+DC two-stage architecture, so that the end-to-end issuing, service adjustment and alarm reporting of the system of the private line service are realized;

and the key technologies of grouping, VC and ODUk three-mixed mapping access and unified cell crossing are innovatively applied to an access layer, so that the integrated miniaturization PTN board card on the CPE-OTN is realized. The technical scheme realizes the comprehensive access of SDH, PTN and OTN with low cost, greatly reduces the networking cost compared with the traditional scheme, and provides a network foundation for providing special line access service with high cost performance for clients; meanwhile, the scheme also simplifies the network level and the deployment difficulty. Meanwhile, NNI butt joint of VC-OTN forwarding layers of different manufacturers is realized, and VC-OTN end-to-end networking is realized.

Drawings

Fig. 1 is a flowchart of a scenario 1 access PTN device provided by an embodiment of the present invention;

fig. 2 is a flowchart of a scenario 2 access OTN device provided by an embodiment of the present invention;

FIG. 3 is a scenario where scenario 1-1 bandwidth is 500M or less, 180P is single-hung to an access convergence HUB;

FIG. 4 is a scenario where scenario 1-2 bandwidth is less than or equal to 500M, 180P is double-hung to the same access convergence HUB;

FIG. 5 is a scenario where scenario 1-3 bandwidth is 500M or less, 180P is double-hung to different access convergence HUBs;

FIG. 6 is a scenario where scenario 1-4 bandwidth is less than or equal to 500M, 180P single-hooks to egress convergence 3900;

FIG. 7 is a scenario where scenario 1-5 bandwidth is 500M or less, 180P double-hooks to egress convergence 3900;

FIG. 8 is a scenario where scenario 1-6 bandwidth is 500M or less, 180P double-hooks to egress convergence 3900 and access convergence HUB;

FIG. 9 is a scenario where scenario 2-1 bandwidth > 500M, 1800 single-hooks to access convergence HUB;

FIG. 10 is a scenario where scenario 2-2 bandwidth > 500M, 1800 dual-hooks to an access convergence HUB;

FIG. 11 is a scenario where scenario 2-3 bandwidth > 500M, 1800 dual-hooks to different access convergence HUBs;

FIG. 12 is a scenario where scenario 2-4 bandwidth > 500M, 1800 single-hook to egress convergence 3900;

FIG. 13 is a scenario where scenario 2-5 bandwidth > 500M, 1800 dual-hooks to egress convergence 3900;

fig. 14 is scenes 2-6: the scenario with bandwidth > 500M, 1800 dual-hooks to the egress convergence 3900 and the access convergence HUB.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.

The embodiment of the invention discloses a complex service arrangement method based on networking topology, which relates to traditional PTN (packet transport network), OTN (optical transport network) technology and POTN hybrid networking arrangement. The method mainly solves the problem that the traditional network manager cannot open PO fusion equipment and business. And dividing the video into 2 large scenes and 16 sub scenes according to the size of the service bandwidth.

Scene one: bandwidth is less than or equal to 500M scene. CPE access network elements are PTN devices (divided into 6 sub-scenarios). The service mode is that the client accesses 180P, opens EVPL service, NNI port configures LSP1:1 protection, and configures PW speed limit. And accessing convergence 3900 to configure EOO service, mapping a plurality of VLANs to the same ODU0, making other 3900 in the ring to cross the ODU0, configuring EOO service by using ring exit 3900, respectively resolving the ODU0 coming from two directions to GE ports, using the GE ports as NNI interfaces, configuring LSP1:1 protection with clients 180P, configuring PW speed limit, and interconnecting UNI out GE and 3900F. 3900F configures EOS traffic, maps VLAN to different VCs, VC- > STM-16- > ODU1, and turns on LMSP 1+1 protection with MUX.

Scene II: scene with bandwidth > 500M and bandwidth < 1G. CPE access network elements are OTN devices (divided into 6 sub-scenarios). The service mode is that a customer accesses CPE-OTN equipment 1800-B2L2 Ethernet to ODU0, turns on the protection of SNCP of ODU0, configures the speed limit of an access port of a customer port (single-hanging 1800 does not enable 2A1Z protection, enables SNCP protection of 2A1Z on opposite end 3900 equipment), accesses convergence 3900 equipment to configure the cross of ODU0 to ODU0, ring outlet 3900 equipment to configure the cross of ODU0 to ODU0, 3900F: the crossover of ODU0 to ODU0 turns on the protection of 2 A2Z.

Specifically, the device involved in the complex service orchestration method based on the networking topology according to the embodiment of the present invention includes: different protocols adopted by 180P,1800,3900 and 3900F are different, PTN and OTN equipment services are required to be converted, and management and maintenance of protocols such as SNMP, TELNET, NETCONF are supported. Customer access device types are classified into PTN 180P and OTN1800, followed by scalable PO fusion device 3900. The topology position of the client access is divided into a single hanging part, a double hanging part, a convergence part 3900, a ring 3900 and a ring 3900. The method solves the problem of distribution of MPLS service and OTN electric cross and 3900F VC time slot in service opening process.

Overall, the orchestration method device of the present invention builds 2 loops: one PTN 10GE ring and one OTN OTU2 ring. Dedicated traffic also surrounds the two rings: the service is divided into PTN service and OTN service, and the OTN service is divided into EOS service and EO0 service.

1) The PTN service is mainly applicable to special lines less than or equal to 1000M: an elastic pipe. CPE configures L2VPN (static tunnel+static PW) and adopts Tunnel-group protection. The opposite SSAP scenario is divided into 2 scenarios depending on whether it belongs to the generic DC management: if the opposite end is a device belonging to general DC control, CPE at the two ends mutually opens L2VPN service, the middle HUB is used as a P (label switching only for tunnel) node of a tunnel, the metropolitan area network PTN is used for transmitting L2VPN service, the outlet HUB is in butt joint with a UNI port of the metropolitan area network PTN by adopting an NNI interface, and a networking mode of OVERLAY is adopted; if the opposite end is SSAP equipment of other manufacturers (NCE management and control of other manufacturers), the CPE and the ring outlet HUB are configured with an L2VPN, the outlet HUB is in butt joint with a UNI port of the metropolitan area network PTN by adopting a UNI interface, and a networking mode of the UNI is adopted.

2) CPE configures Ethernet to VC to ODU, intermediate HUB configures ODU cross-through, outlet HUB solves ODU to Ethernet, metropolitan area network PTN makes L2VPN as service transmission, HUB configures LAG interface to butt joint with metropolitan area network PTN, and networking mode of UNI is adopted. And the protection of SNCP is adopted in the domain.

The service of EOS is mainly applicable to special lines less than or equal to 500M: rigid pipeline transmission, vision Anhui Tong/Ruikang and Hua are distinguished in networking & function, and are divided into 2 scenes, as shown in fig. 8:

CPE adopts PTN-CPE, CPE side configures L2VPN service, NNI port configures Tunnel-group protection, and PW speed limit is configured; service of CPE end access HUB configuration EOO: converging the Ethernet of the hung CPE into an ODU0; the other HUBs in the ring are crossed by ODU0; the outlet converging HUB solves EOO, configures L2VPN service, solves the service from CPE to Ethernet, and sends out ring outlet by back plate or main control to configure EOS service (Ethernet to VC4 to STM-16 to ODU 1), the outlet converging HUB is butted with metropolitan area network MUX by adopting two paths of OTU2 gray light interfaces, the MUX disassembles VC4 in ODU1, and configures VC intersection to achieve service convergence in all directions.

The CPE configures Ethernet to VC4 to STM-4, accesses HUB to configure VC cross, completes the VC convergence of the underhung CPE, converges VC to STM-16, then to ODU1, forwards in HUB ring, the HUB and the metropolitan area network MUX are butted by adopting a double-way OTU2 gray optical interface, the MUX disassembles VC4 in ODU1, configures VC cross to converge the service in all directions.

In order to achieve the above object, the present invention has the technical scheme that:

It may be understood that the system provided by the embodiment of the present invention corresponds to the method provided by the embodiment of the present invention, and explanation, examples and beneficial effects of the related content may refer to corresponding parts in the above method.

The embodiment of the application also provides an electronic device, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus,

a memory for storing a computer program;

the processor is used for realizing the complex business arrangement method based on the networking topology when executing the program stored in the memory;

the communication bus mentioned by the above electronic device may be a peripheral component interconnect standard (english: peripheral Component Interconnect, abbreviated: PCI) bus or an extended industry standard architecture (english: extended Industry Standard Architecture, abbreviated: EISA) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like.

The communication interface is used for communication between the electronic device and other devices.

The Memory may include random access Memory (Random Access Memory, abbreviated as RAM) or nonvolatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; it may also be a digital signal processor (English: digital Signal Processing; DSP; for short), an application specific integrated circuit (English: application Specific Integrated Circuit; ASIC; for short), a Field programmable gate array (English: field-Programmable Gate Array; FPGA; for short), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.

In yet another embodiment provided herein, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform any of the complex business orchestration methods based on networking topology described in the above embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A complex service arrangement method based on networking topology is characterized in that,

step 1, a customer accesses PTN 180P equipment to start EVPL service, NNI port configures LSP1:1 protection, and PW speed limit is configured;

step 3, making other 3900 in the ring to be ODU0 crossed;

step 5, 3900F configures EOS service, maps VLAN to different VCs, encapsulates different types of VCs into STM16 signal types, then converts the VCs into ODU1 signals through internal time slot mapping, and starts LMSP 1+1 protection with MUX;

when the bandwidth is more than 500M and the bandwidth is less than 1G, the method comprises the following steps,

step 1, a client accesses OTN1800-B2L2, GE reaches ODU0, and opens SNCP protection of ODU0, and configures the speed limit of an access port of a client port, the single-hanging OTN1800 does not start 2A1Z protection, and starts SNCP protection of 2A1Z on opposite end 3900 equipment;

step 4, looping 3900 out a cross EOO service from ODU0 to ODU0;

step 5, 3900F configures the cross EOO service from ODU0 to ODU0, and starts the protection of 2 A2Z.

2. The complex business arrangement method based on networking topology according to claim 1, wherein:

the apparatus comprises: 180P,1800,3900 and 3900F, different protocols are adopted by different devices, PTN and OTN device services are converted, and management and maintenance of the protocols SNMP, TELNET, NETCONF are supported;

3. A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the method of claim 1 or 2.

4. A computer device comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method of claim 1 or 2.