WO2020235036A1 - Setting information generation device, setting information generation method, and setting information generation program - Google Patents

Setting information generation device, setting information generation method, and setting information generation program Download PDF

Info

Publication number
WO2020235036A1
WO2020235036A1 PCT/JP2019/020231 JP2019020231W WO2020235036A1 WO 2020235036 A1 WO2020235036 A1 WO 2020235036A1 JP 2019020231 W JP2019020231 W JP 2019020231W WO 2020235036 A1 WO2020235036 A1 WO 2020235036A1
Authority
WO
WIPO (PCT)
Prior art keywords
setting information
conversion
sip signal
network
difference
Prior art date
Application number
PCT/JP2019/020231
Other languages
French (fr)
Japanese (ja)
Inventor
澤田　暁彦
Original Assignee
日本電信電話株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電信電話株式会社 filed Critical 日本電信電話株式会社
Priority to PCT/JP2019/020231 priority Critical patent/WO2020235036A1/en
Publication of WO2020235036A1 publication Critical patent/WO2020235036A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Definitions

  • the present invention relates to a setting information generator for converting a SIP signal, a setting information generation method, and a setting information generation program.
  • Non-Patent Document 1 SIP signal interwork
  • the SIP signal is standardized, it has its own extensions (for example, addition of its own header) in response to the services of each company. It is necessary to design the config (setting information) of the signal interwork condition in consideration of the extension of the SIP signal unique to each company.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to easily generate setting information for converting a SIP signal.
  • one aspect of the present invention is a setting information generator, which extracts a difference between a SIP signal before conversion and a SIP signal after conversion, analyzes the difference, and obtains conversion information. It includes a difference extraction unit to be generated, and a generation unit to generate setting information for causing the network device to convert the SIP signal before conversion into the SIP signal after conversion based on the conversion information.
  • One aspect of the present invention is a setting information generation method performed by a setting information generator, which extracts a difference between a SIP signal before conversion and a SIP signal after conversion, analyzes the difference, and generates conversion information.
  • the difference extraction step is performed, and the generation step of generating setting information for causing the network device to convert the SIP signal before conversion into the SIP signal after conversion is performed based on the conversion information.
  • One aspect of the present invention is a setting information generation program that causes a computer to function as the setting information generation device.
  • FIG. 1 is an example of a communication system in which IP interconnection is performed between different telecommunications carriers.
  • the company's own network of the company's telecommunications carrier and the network of others of a plurality of other companies' telecommunications carriers are connected via a POI (Point Of Interface: interconnection point) (not shown).
  • POI Point Of Interface: interconnection point
  • the company's network and other companies' networks are IP networks.
  • Our own network and other companies' networks have NNI-GW 11 and 12 (Network to Network Interface-Gateway).
  • the company's own NNI-GW11 is a gateway installed at the POI boundary with other companies' networks.
  • the in-house NNI-GW11 converts the data format, communication method, etc. in order to interconnect the in-house network and the network of other companies.
  • the illustrated company NNI-GW 11 converts the SIP signal transmitted from the SIP server (not shown) of the company network into a SIP signal for another company's network, and transmits the SIP signal to the NNI-GW 12 of the other company's network.
  • the in-house NNI-GW11 converts the SIP signal transmitted from the in-house NNI-GW12 of the other company's network into a SIP signal for the in-house network and transmits it to the SIP server of the in-house network.
  • the in-house NNI-GW11 provides Config (setting information) for converting the SIP signal for the in-house network (in-house specification) and the SIP signal for the other company's network (other company's specification) for each network of other companies to be interconnected. Be prepared.
  • the company's NNI-GW11 has a Config for each other company's network.
  • the company NNI-GW11 when interconnecting with the company A network (other company's network), the company NNI-GW11 converts the SIP signal for the company network into a SIP signal for the company A network using the setting information for the company A network. It is transmitted to NNI-GW12 of company A network.
  • the company NNI-GW11 converts the SIP signal for the company A network transmitted from the NNI-GW12 of the company A network into a SIP signal for the company network using the Config for the company A network, and the company network Send to the SIP server.
  • FIG. 2 is a functional block diagram showing the configuration of the Config generation device 2 (setting information generation device) according to the present embodiment.
  • the Config generator 2 generates a Config for converting the SIP signal.
  • the generated Config is incorporated in a network device that converts the SIP signal (for example, the company's NNI-GW11 in FIG. 1).
  • the Config generator 2 of the present embodiment does not design and create a config from conversion rules such as interwork conditions, but automatically generates a config by comparing the SIP signals before and after the conversion that are actually transmitted and received.
  • Config is setting information for causing a network device (computer) to execute a SIP signal conversion process.
  • the conversion of SIP signals is, for example, the addition, deletion, conversion of headers or parameters of SIP signals.
  • the illustrated Config generation device 2 includes an input unit 21, a difference extraction unit 22, a generation unit 23, an output unit 24, a syntax definition DB 25 (syntax storage unit), and a pattern DB 26 (pattern storage unit).
  • the input unit 21 receives the input of the SIP signal before conversion and the SIP signal after conversion. These SIP signals will be described later. Further, the input unit 21 may accept the designation (input) of the model of the network device.
  • the difference extraction unit 22 extracts the difference between the SIP signal before conversion and the SIP signal after conversion, analyzes the difference, and generates conversion information. Specifically, the difference extraction unit 22 extracts the portion of the difference corresponding to the syntax information stored in the syntax definition DB 25 as conversion information.
  • the generation unit 23 generates a Config that causes the network device to convert the SIP signal before conversion into the SIP signal after conversion based on the conversion information generated by the difference extraction unit 22. Further, the generation unit 23 may generate setting information for each model of the network device by using the pattern DB 26. Further, the generation unit 23 may acquire the syntax pattern of the model designated by the user from the pattern DB 26 and generate the Config for the designated model using the syntax pattern. The output unit 24 outputs the Config generated by the generation unit 23.
  • the syntax definition DB25 stores SIP syntax information (for example, the presence or absence of headers and parameters). In addition, the syntax definition DB 25 also holds information on the portion of the SIP signal that is the target of difference extraction.
  • the pattern DB 26 stores the Config syntax pattern for each model of the network device.
  • the Config generator 2 described above includes, for example, a CPU (Central Processing Unit, processor), a memory, a storage (HDD: Hard Disk Drive, SSD: Solid State Drive), a communication device, an input device, and an output.
  • a general-purpose computer system including a device can be used.
  • each function of the Config generator 2 is realized by executing the program for the Config generator 2 whose CPU is loaded in the memory.
  • the program for the Config generator 2 can be stored in a computer-readable recording medium such as an HDD, SSD, USB memory, CD-ROM, DVD-ROM, or MO, or can be distributed via a network. ..
  • FIG. 3 is a flowchart showing the operation of the Config generator 2.
  • the network device is NNI-GW11
  • a case where a Config for NNI-GW11 is generated will be described below.
  • the network device is not limited to NNI-GW11.
  • the input unit 21 receives the input of the pre-conversion SIP signal and the post-conversion SIP signal (step S11).
  • FIG. 4 is a diagram showing an example of a pre-conversion SIP signal and a post-conversion SIP signal.
  • the pre-conversion SIP signal 41 is a SIP signal to be input to the NNI-GW 11.
  • the converted SIP signal 42 is a SIP signal that is expected to be output by the NNI-GW 11 when the pre-converted SIP signal 41 is input to the NNI-GW 11.
  • the pre-conversion SIP signal 41 and the post-conversion SIP signal 42 are created by, for example, a verifier of NNI-GW 11 according to various interwork conditions (conversion rules) based on the actual SIP signal.
  • the NNI-GW 11 Max-forwards the pre-conversion SIP signal 41 as the post-conversion SIP signal 42.
  • the case of generating a Config that outputs a SIP signal with an added header will be described.
  • the difference extraction unit 22 extracts the difference between the pre-conversion SIP signal and the post-conversion SIP signal, analyzes the difference, and generates conversion information (step S12). Specifically, the difference extraction unit 22 extracts the portion of the difference corresponding to the syntax information stored in the syntax definition DB 25 as conversion information.
  • FIG. 5 is an explanatory diagram for explaining the processing of the difference extraction unit 22.
  • the difference extraction unit 22 compares the input pre-conversion SIP signal 41 with the post-conversion SIP signal 42, and extracts the difference 51 (signal difference) (step S121).
  • the difference extraction unit 22 extracts that the pre-conversion SIP signal 41 does not have a Max-forward header and the converted SIP signal 42 has a Max-forward header as a difference.
  • the difference extraction unit 22 extracts the difference (Call-ID header, etc.) that does not need to be converted as the difference 51.
  • the difference extraction unit 22 analyzes the difference 51 with reference to the syntax definition DB 25, and the portion of the difference 51 corresponding to the syntax information stored in the syntax definition DB 25 needs to be converted by Config. Is determined and extracted as conversion information 52 (step S122).
  • the syntax definition DB 25 stores in advance syntactic information (information on headers, parameters, etc.) for parsing the SIP signal standardized by RFC 3261 (Non-Patent Document 1) and the like.
  • the converted information 52 shown in the figure includes the difference information and the implementation conditions.
  • the difference information "the SIP signal 41 before conversion has no Max-forward header and the SIP signal 42 after conversion has a Max-forward header” extracted as the difference 51 is set.
  • the implementation conditions "specify” 70 "for the parameter of the Max-forward header" acquired from the pre-conversion SIP signal 41 and the post-conversion SIP signal 42, "the implementation target signal must be a request signal", "The method of the request signal is INVITE" is set.
  • the generation unit 23 generates a Config based on the conversion information 52 (step S13). Specifically, the generation unit 23 uses the pattern DB 26 to generate a Config for each model of the network device.
  • FIG. 6 is an explanatory diagram for explaining the processing of the generation unit 23.
  • the pattern DB 26 stores the Config syntax pattern for each model of the network device.
  • a Config syntax pattern (description format), a plurality of variables, and the like are stored for each condition (addition, deletion, change, etc.).
  • the generation unit 23 specifies the syntax pattern of the Config corresponding to the specified model from the pattern DB 26, and generates the Config using the syntax pattern of the Config.
  • the generation unit 23 may generate a plurality of Configs for each model of the network device by using each syntax pattern registered in the pattern DB 26.
  • the generation unit 23 generates Config based on the conversion information of FIG. In this case, since the "Max-forward header" is added, the condition is "addition”, the variable 1 (method) is "INVITE", and the variable 2 (header, parameter) is "Max-forward 70". Therefore, the generation unit 23 generates Config 61 of "Add INVITE Max-forward 70" by using the additional syntax pattern (Add x1 x2) of the pattern DB26.
  • the output unit 24 outputs the Config 61 generated by the generation unit 23 (step S14). Further, in order to verify the generated Config 61, the generation unit 23 may generate the converted SIP signal 62 obtained by converting the pre-conversion SIP signal 41 with the Config 61. In this case, the output unit 24 outputs the converted SIP signal 62 together with the Config 61.
  • the Config generation device 2 of the present embodiment described above has a difference extraction unit that extracts the difference between the SIP signal before conversion and the SIP signal after conversion, analyzes the difference, and generates conversion information, and the conversion. Based on the information, the network device includes a generation unit that generates setting information for converting the SIP signal before conversion into the SIP signal after conversion.
  • the config is automatically generated by comparing the SIP signals before and after the conversion that are actually transmitted and received, instead of designing and creating the config from the conversion rules such as the interwork conditions.
  • the maintenance operator does not need to design and create the Config, so that the maintenance operator is not required to have high technical skills, and the load of designing and creating the Config can be reduced.
  • the SIP signal before conversion and the SIP signal after conversion of the present embodiment are generated according to the interwork conditions for interconnecting the company's network and the network of the other company, and the network device is the network of the company and the network of the other company. It is an NNI-GW installed on the boundary with.
  • the interoperability confirmation test for IP interconnection between each telecommunications carrier (carrier) becomes easy, and the development man-hours and period of NNI-GW11 can be reduced.
  • the present invention is not limited to the above embodiment, and many modifications can be made within the scope of the gist thereof.

Abstract

In the present invention, the generation of setting information for converting an SIP signal is easily carried out. A setting information generation device 2 comprises: a differential extraction unit 22 that extracts the differential between a pre-conversion SIP signal and a post-conversion SIP signal, and that analyzes said differential and generates conversion information; and a generation unit 23 that, on the basis of the conversion information, generates setting information for causing a network device to convert the pre-conversion SIP signal to the post-conversion SIP signal.

Description

設定情報生成装置、設定情報生成方法、および、設定情報生成プログラムSetting information generator, setting information generation method, and setting information generation program
　本発明は、SIP信号を変換する設定情報生成装置、設定情報生成方法、および、設定情報生成プログラムに関する。 The present invention relates to a setting information generator for converting a SIP signal, a setting information generation method, and a setting information generation program.
　近年、各通信事業者（キャリア）間のIP相互接続に向け、相互接続性確認試験を実施し、SIP信号条件のルールにもとづき、他社網とのPOI（Point Of Interface）境界に設置されるネットワーク装置(NNI-GW)の開発を進めている。ネットワーク装置には、各社網で流通するSIP信号の特性を考慮したSIP信号のインタワーク（IW）条件を設計する必要がある。SIP信号は、非特許文献１に記載されている。 In recent years, we have conducted interoperability confirmation tests for IP interconnection between telecommunications carriers (carriers), and based on the rules of SIP signal conditions, a network installed at the POI (Point Of Interface) boundary with other companies' networks. We are developing a device (NNI-GW). For network devices, it is necessary to design SIP signal interwork (IW) conditions in consideration of the characteristics of SIP signals distributed in each company's network. The SIP signal is described in Non-Patent Document 1.
　SIP信号は標準化されてはいるものの、各社のサービス等の対応で独自の拡張(例えば、独自ヘッダの追加等)がなされている。このような各社独自のSIP信号の拡張を考慮した信号インタワーク条件のconfig（設定情報）を設計する必要がある。 Although the SIP signal is standardized, it has its own extensions (for example, addition of its own header) in response to the services of each company. It is necessary to design the config (setting information) of the signal interwork condition in consideration of the extension of the SIP signal unique to each company.
　Configの設計には、標準化されたSIP信号および各社独自のSIP信号に精通している必要があり、さらにネットワーク装置自体の知識が必要となる。このため、configの設計にはSIP信号に関して高い技術スキルが要求され、また、インタワーク条件の１つ１つの信号変換ルールであるconfigを設計するため、設計量が多くなる傾向にある。 To design Config, it is necessary to be familiar with standardized SIP signals and SIP signals unique to each company, and knowledge of the network device itself is also required. Therefore, high technical skill is required for SIP signal design, and the amount of design tends to increase because config, which is a signal conversion rule for each interwork condition, is designed.
　本発明は、上記事情に鑑みてなされたものであり、本発明の目的は、SIP信号を変換させる設定情報の生成を容易に行うことにある。 The present invention has been made in view of the above circumstances, and an object of the present invention is to easily generate setting information for converting a SIP signal.
　上記目的を達成するため、本発明の一態様は、設定情報生成装置であって、変換前のSIP信号と、変換後のSIP信号との差分を抽出し、前記差分を解析して変換情報を生成する差分抽出部と、前記変換情報に基づいて、ネットワーク装置に前記変換前のSIP信号を前記変換後のSIP信号に変換させる設定情報を生成する生成部と、を備える。 In order to achieve the above object, one aspect of the present invention is a setting information generator, which extracts a difference between a SIP signal before conversion and a SIP signal after conversion, analyzes the difference, and obtains conversion information. It includes a difference extraction unit to be generated, and a generation unit to generate setting information for causing the network device to convert the SIP signal before conversion into the SIP signal after conversion based on the conversion information.
　本発明の一態様は、設定情報生成装置が行う設定情報生成方法であって、変換前のSIP信号と、変換後のSIP信号との差分を抽出し、前記差分を解析して変換情報を生成する差分抽出ステップと、前記変換情報に基づいて、ネットワーク装置に前記変換前のSIP信号を前記変換後のSIP信号に変換させる設定情報を生成する生成ステップと、を行う。 One aspect of the present invention is a setting information generation method performed by a setting information generator, which extracts a difference between a SIP signal before conversion and a SIP signal after conversion, analyzes the difference, and generates conversion information. The difference extraction step is performed, and the generation step of generating setting information for causing the network device to convert the SIP signal before conversion into the SIP signal after conversion is performed based on the conversion information.
　本発明の一態様は、上記設定情報生成装置として、コンピュータを機能させる設定情報生成プログラムである。 One aspect of the present invention is a setting information generation program that causes a computer to function as the setting information generation device.
　本発明によれば、SIP信号を変換させる設定情報の生成を、容易に行うことができる。 According to the present invention, it is possible to easily generate setting information for converting a SIP signal.
本発明の実施形態に係る通信システムの全体構成を示す図である。It is a figure which shows the whole structure of the communication system which concerns on embodiment of this invention. Config生成装置の構成を示す機能ブロック図である。It is a functional block diagram which shows the structure of a Config generator. Config生成装置の動作を示すフローチャートである。It is a flowchart which shows the operation of a Config generator. 変換前SIP信号、および、変換後SIP信号の一例を示す図である。It is a figure which shows an example of the SIP signal before conversion and the SIP signal after conversion. 差分抽出部の処理を説明するための説明図である。It is explanatory drawing for demonstrating the processing of the difference extraction part. 生成部の処理を説明するための説明図である。It is explanatory drawing for demonstrating the processing of a generation part.
　以下、本発明の実施の形態について、図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１は、異なる通信事業者間でIP相互接続が行われる通信システムの一例である。図示する通信システムでは、自社の通信事業者の自社網と、複数の他社の通信事業者の他者網とが、図示しないPOI（Point Of Interface：相互接続点）を介して接続されている。自社網および他社網は、IP網である。自社網および他社網は、NNI-GW１１、１２（Network to Network Interface - Gateway）を有する。 FIG. 1 is an example of a communication system in which IP interconnection is performed between different telecommunications carriers. In the illustrated communication system, the company's own network of the company's telecommunications carrier and the network of others of a plurality of other companies' telecommunications carriers are connected via a POI (Point Of Interface: interconnection point) (not shown). The company's network and other companies' networks are IP networks. Our own network and other companies' networks have NNI-GW 11 and 12 (Network to Network Interface-Gateway).
　自社網の自社NNI-GW１１は、他社網とのPOI境界に設置されるゲートウェイである。自社NNI-GW１１は、自社網と他社網とを相互に接続するために、データ形式、通信方式などを変換する。図示する自社NNI-GW１１は、自社網のSIPサーバ（不図示）から送信されるSIP信号を、他社網用のSIP信号に変換し、他社網のNNI-GW１２に送信する。また、自社NNI-GW１１は、他社網の自社NNI-GW１２から送信されたSIP信号を、自社網用のSIP信号に変換し、自社網のSIPサーバに送信する。 The company's own NNI-GW11 is a gateway installed at the POI boundary with other companies' networks. The in-house NNI-GW11 converts the data format, communication method, etc. in order to interconnect the in-house network and the network of other companies. The illustrated company NNI-GW 11 converts the SIP signal transmitted from the SIP server (not shown) of the company network into a SIP signal for another company's network, and transmits the SIP signal to the NNI-GW 12 of the other company's network. In addition, the in-house NNI-GW11 converts the SIP signal transmitted from the in-house NNI-GW12 of the other company's network into a SIP signal for the in-house network and transmits it to the SIP server of the in-house network.
　このため、自社NNI-GW１１は、相互接続する他社網毎に、自社網用（自社仕様）のSIP信号を、他社網用（他社仕様）のSIP信号を変換するためのConfig（設定情報）を備える。図示する例では、自社NNI-GW１１は、他社網毎に、Configを備える。 For this reason, the in-house NNI-GW11 provides Config (setting information) for converting the SIP signal for the in-house network (in-house specification) and the SIP signal for the other company's network (other company's specification) for each network of other companies to be interconnected. Be prepared. In the illustrated example, the company's NNI-GW11 has a Config for each other company's network.
　例えば、Ａ社網（他社網）と相互接続する場合、自社NNI-GW１１は、自社網用のSIP信号をＡ社網用の設定情報を用いてＡ社網用のSIP信号に変換して、Ａ社網のNNI-GW１２に送信する。また、自社NNI-GW１１は、Ａ社網のNNI-GW１２から送信されたＡ社網用のSIP信号を、Ａ社網用のConfigを用いて自社網用のSIP信号に変換して、自社網のSIPサーバに送信する。 For example, when interconnecting with the company A network (other company's network), the company NNI-GW11 converts the SIP signal for the company network into a SIP signal for the company A network using the setting information for the company A network. It is transmitted to NNI-GW12 of company A network. In addition, the company NNI-GW11 converts the SIP signal for the company A network transmitted from the NNI-GW12 of the company A network into a SIP signal for the company network using the Config for the company A network, and the company network Send to the SIP server.
　図２は、本実施形態に係るConfig生成装置２（設定情報生成装置）の構成を示す機能ブロック図である。Config生成装置２は、SIP信号を変換するためのConfigを生成する。生成されたConfigは、SIP信号を変換するネットワーク装置（例えば図１の自社NNI-GW１１など）に組み込まれる。 FIG. 2 is a functional block diagram showing the configuration of the Config generation device 2 (setting information generation device) according to the present embodiment. The Config generator 2 generates a Config for converting the SIP signal. The generated Config is incorporated in a network device that converts the SIP signal (for example, the company's NNI-GW11 in FIG. 1).
　本実施形態のConfig生成装置２は、インタワーク条件などの変換ルールからconfigを設計および作成するのではなく、実際に送受信される変換前後のSIP信号を比較することで、configを自動生成する。Configは、ネットワーク装置（コンピュータ）に、SIP信号の変換処理を実行させるための設定情報である。SIP信号の変換は、例えば、SIP信号のヘッダまたはパラメータの追加、削除、変換などである。 The Config generator 2 of the present embodiment does not design and create a config from conversion rules such as interwork conditions, but automatically generates a config by comparing the SIP signals before and after the conversion that are actually transmitted and received. Config is setting information for causing a network device (computer) to execute a SIP signal conversion process. The conversion of SIP signals is, for example, the addition, deletion, conversion of headers or parameters of SIP signals.
　図示するConfig生成装置２は、入力部２１と、差分抽出部２２と、生成部２３と、出力部２４と、構文定義DB２５（構文記憶部）と、パターンDB２６（パターン記憶部）とを備える。 The illustrated Config generation device 2 includes an input unit 21, a difference extraction unit 22, a generation unit 23, an output unit 24, a syntax definition DB 25 (syntax storage unit), and a pattern DB 26 (pattern storage unit).
　入力部２１は、変換前のSIP信号、および、変換後のSIP信号の入力を受け付ける。これらのSIP信号については、後述する。また、入力部２１は、ネットワーク装置の機種の指定（入力）を受け付けてもよい。 The input unit 21 receives the input of the SIP signal before conversion and the SIP signal after conversion. These SIP signals will be described later. Further, the input unit 21 may accept the designation (input) of the model of the network device.
　差分抽出部２２は、変換前のSIP信号と、変換後のSIP信号との差分を抽出し、差分を解析して変換情報を生成する。具体的には、差分抽出部２２は、差分のうち、構文定義DB２５に記憶された構文情報に対応する部分を、変換情報として抽出する。 The difference extraction unit 22 extracts the difference between the SIP signal before conversion and the SIP signal after conversion, analyzes the difference, and generates conversion information. Specifically, the difference extraction unit 22 extracts the portion of the difference corresponding to the syntax information stored in the syntax definition DB 25 as conversion information.
　生成部２３は、差分抽出部２２が生成した変換情報に基づいて、ネットワーク装置に変換前のSIP信号を変換後のSIP信号に変換させるConfigを生成する。また、生成部２３は、パターンDB２６を用いて、ネットワーク装置の機種毎に設定情報を生成してもよい。また、生成部２３は、ユーザにより指定された機種の構文パターンをパターンDB２６から取得し、当該構文パターンを用いて、指定された機種用のConfigを生成してもよい。出力部２４は、生成部２３が生成したConfigを出力する。 The generation unit 23 generates a Config that causes the network device to convert the SIP signal before conversion into the SIP signal after conversion based on the conversion information generated by the difference extraction unit 22. Further, the generation unit 23 may generate setting information for each model of the network device by using the pattern DB 26. Further, the generation unit 23 may acquire the syntax pattern of the model designated by the user from the pattern DB 26 and generate the Config for the designated model using the syntax pattern. The output unit 24 outputs the Config generated by the generation unit 23.
　構文定義DB２５には、SIPの構文情報（例えば、ヘッダ、パラメータの有無など）が記憶される。また、構文定義DB２５は、SIP信号において、差分抽出の対象とする部分の情報も保持する。パターンDB２６には、ネットワーク装置の機種毎に、Configの構文パターンが記憶される。 The syntax definition DB25 stores SIP syntax information (for example, the presence or absence of headers and parameters). In addition, the syntax definition DB 25 also holds information on the portion of the SIP signal that is the target of difference extraction. The pattern DB 26 stores the Config syntax pattern for each model of the network device.
　上記説明したConfig生成装置２には、例えば、CPU（Central Processing Unit、プロセッサ）と、メモリと、ストレージ（HDD：Hard Disk Drive、SSD：Solid State Drive）と、通信装置と、入力装置と、出力装置とを備える汎用的なコンピュータシステムを用いることができる。このコンピュータシステムにおいて、CPUがメモリ上にロードされたConfig生成装置２用のプログラムを実行することにより、Config生成装置２の各機能が実現される。また、Config生成装置２用のプログラムは、HDD、SSD、USBメモリ、CD-ROM、DVD-ROM、MOなどのコンピュータ読取り可能な記録媒体に記憶することも、ネットワークを介して配信することもできる。 The Config generator 2 described above includes, for example, a CPU (Central Processing Unit, processor), a memory, a storage (HDD: Hard Disk Drive, SSD: Solid State Drive), a communication device, an input device, and an output. A general-purpose computer system including a device can be used. In this computer system, each function of the Config generator 2 is realized by executing the program for the Config generator 2 whose CPU is loaded in the memory. Further, the program for the Config generator 2 can be stored in a computer-readable recording medium such as an HDD, SSD, USB memory, CD-ROM, DVD-ROM, or MO, or can be distributed via a network. ..
　次に、本実施形態のConfig生成装置２の動作を説明する。 Next, the operation of the Config generator 2 of this embodiment will be described.
　図３は、Config生成装置２の動作を示すフローチャートである。ここでは、ネットワーク装置がNNI-GW１１であるとして、NNI-GW１１用のConfigを生成する場合を以下に説明する。ただし、ネットワーク装置は、NNI-GW１１に限定されない。 FIG. 3 is a flowchart showing the operation of the Config generator 2. Here, assuming that the network device is NNI-GW11, a case where a Config for NNI-GW11 is generated will be described below. However, the network device is not limited to NNI-GW11.
　入力部２１は、変換前SIP信号、および、変換後SIP信号の入力を受け付ける（ステップＳ１１）。 The input unit 21 receives the input of the pre-conversion SIP signal and the post-conversion SIP signal (step S11).
　図４は、変換前SIP信号、および、変換後SIP信号の一例を示す図である。変換前SIP信号４１は、NNI-GW１１に入力される予定のSIP信号である。変換後SIP信号４２は、変換前SIP信号４１がNNI-GW１１に入力された場合に、NNI-GW１１での出力が期待されるSIP信号である。変換前SIP信号４１および変換後SIP信号４２は、例えばNNI-GW１１の検証者が、実際のSIP信号に基づいて、各種のインタワーク条件（変換ルール）に応じて作成する。 FIG. 4 is a diagram showing an example of a pre-conversion SIP signal and a post-conversion SIP signal. The pre-conversion SIP signal 41 is a SIP signal to be input to the NNI-GW 11. The converted SIP signal 42 is a SIP signal that is expected to be output by the NNI-GW 11 when the pre-converted SIP signal 41 is input to the NNI-GW 11. The pre-conversion SIP signal 41 and the post-conversion SIP signal 42 are created by, for example, a verifier of NNI-GW 11 according to various interwork conditions (conversion rules) based on the actual SIP signal.
　ここでは、一例として、変換前SIP信号４１としてMax-forwardヘッダがないSIP信号がNNI-GW１１に入力されると、NNI-GW１１が、変換後SIP信号４２として変換前SIP信号４１にMax-forwardヘッダを追加したSIP信号を出力するConfigを生成する場合について説明する。 Here, as an example, when a SIP signal without a Max-forward header is input to the NNI-GW 11 as the pre-conversion SIP signal 41, the NNI-GW 11 Max-forwards the pre-conversion SIP signal 41 as the post-conversion SIP signal 42. The case of generating a Config that outputs a SIP signal with an added header will be described.
　差分抽出部２２は、変換前SIP信号と、変換後SIP信号との差分を抽出し、差分を解析して変換情報を生成する（ステップＳ１２）。具体的には、差分抽出部２２は、差分のうち、構文定義DB２５に記憶された構文情報に対応する部分を、変換情報として抽出する。 The difference extraction unit 22 extracts the difference between the pre-conversion SIP signal and the post-conversion SIP signal, analyzes the difference, and generates conversion information (step S12). Specifically, the difference extraction unit 22 extracts the portion of the difference corresponding to the syntax information stored in the syntax definition DB 25 as conversion information.
　図５は、差分抽出部２２の処理を説明するための説明図である。差分抽出部２２は、入力された変換前SIP信号４１と、変換後SIP信号４２とを比較し、差分５１（信号差分）を抽出する（ステップＳ１２１）。図４の例では、差分抽出部２２は、差分として、変換前SIP信号４１にはMax-forwardヘッダがなく、変換後SIP信号４２にはMax-forwardヘッダがあることを抽出する。また、Ｓ１２１では、差分抽出部２２は、差分５１として、変換の必要がない差分（Call-IDヘッダ等）も抽出する。 FIG. 5 is an explanatory diagram for explaining the processing of the difference extraction unit 22. The difference extraction unit 22 compares the input pre-conversion SIP signal 41 with the post-conversion SIP signal 42, and extracts the difference 51 (signal difference) (step S121). In the example of FIG. 4, the difference extraction unit 22 extracts that the pre-conversion SIP signal 41 does not have a Max-forward header and the converted SIP signal 42 has a Max-forward header as a difference. Further, in S121, the difference extraction unit 22 extracts the difference (Call-ID header, etc.) that does not need to be converted as the difference 51.
　そして、差分抽出部２２は、構文定義DB２５を参照して差分５１を解析し、差分５１のうち構文定義DB２５に記憶された構文情報に対応する部分を、Configにより変換の必要がある部分であると判別し、変換情報５２として抽出する（ステップＳ１２２）。構文定義DB２５には、RFC3261（非特許文献１）等で標準化されているSIP信号の構文解析のための構文情報（ヘッダ、パラメータなどに関する情報）が、あらかじめ記憶されている。 Then, the difference extraction unit 22 analyzes the difference 51 with reference to the syntax definition DB 25, and the portion of the difference 51 corresponding to the syntax information stored in the syntax definition DB 25 needs to be converted by Config. Is determined and extracted as conversion information 52 (step S122). The syntax definition DB 25 stores in advance syntactic information (information on headers, parameters, etc.) for parsing the SIP signal standardized by RFC 3261 (Non-Patent Document 1) and the like.
　図示する変換情報５２は、差分情報と、実施条件とを含む。差分情報には、差分５１として抽出した「変換前SIP信号４１にはMax-forwardヘッダがなく、変換後SIP信号４２にはMax-forwardヘッダがあること」が設定される。実施条件には、変換前SIP信号４１および変換後SIP信号４２から取得した、「Max-forwardヘッダのパラメータには「70」を指定すること」、「実施対象信号はリクエスト信号であること」、「リクエスト信号のメソッドはINVITEであるとこ」などが設定される。 The converted information 52 shown in the figure includes the difference information and the implementation conditions. In the difference information, "the SIP signal 41 before conversion has no Max-forward header and the SIP signal 42 after conversion has a Max-forward header" extracted as the difference 51 is set. As the implementation conditions, "specify" 70 "for the parameter of the Max-forward header" acquired from the pre-conversion SIP signal 41 and the post-conversion SIP signal 42, "the implementation target signal must be a request signal", "The method of the request signal is INVITE" is set.
　生成部２３は、変換情報５２に基づいてConfigを生成する（ステップＳ１３）。具体的には、生成部２３は、パターンDB２６を用いて、ネットワーク装置の機種ごとにConfigを生成する。 The generation unit 23 generates a Config based on the conversion information 52 (step S13). Specifically, the generation unit 23 uses the pattern DB 26 to generate a Config for each model of the network device.
　図６は、生成部２３の処理を説明するための説明図である。パターンDB２６には、ネットワーク装置の機種ごとにConfigの構文パターンが記憶される。図示する構文パターンDB２６には、条件（追加、削除、変更など）ごとに、Configの構文パターン（記述形式）、複数の変数などが記憶されている。生成部２３は、入力部２１にネットワーク装置の機種が入力された場合、指定された機種に対応するConfigの構文パターンをパターンDB２６から特定し、当該Configの構文パターンを用いてConfigを生成する。ネットワーク装置の機種が指定されない場合、生成部２３は、パターンDB２６に登録されている各構文パターンを用いて、ネットワーク機器の機種毎に複数のConfigを生成してもよい。 FIG. 6 is an explanatory diagram for explaining the processing of the generation unit 23. The pattern DB 26 stores the Config syntax pattern for each model of the network device. In the illustrated syntax pattern DB 26, a Config syntax pattern (description format), a plurality of variables, and the like are stored for each condition (addition, deletion, change, etc.). When the model of the network device is input to the input unit 21, the generation unit 23 specifies the syntax pattern of the Config corresponding to the specified model from the pattern DB 26, and generates the Config using the syntax pattern of the Config. When the model of the network device is not specified, the generation unit 23 may generate a plurality of Configs for each model of the network device by using each syntax pattern registered in the pattern DB 26.
　図示する例では、生成部２３は、図５の変換情報に基づいてConfigを生成する。この場合、「Max-forwardヘッダ」の追加であるため、条件は「追加」、変数１（メソッド）は「INVITE」、変数２（ヘッダ、パラメータ）は「Max-forward　70」となる。したがって、生成部２３は、パターンDB26の追加の構文パターン（Add x1 x2）を用いて、「Add INVITE Max-forward　70」のConfig６１を生成する。 In the illustrated example, the generation unit 23 generates Config based on the conversion information of FIG. In this case, since the "Max-forward header" is added, the condition is "addition", the variable 1 (method) is "INVITE", and the variable 2 (header, parameter) is "Max-forward 70". Therefore, the generation unit 23 generates Config 61 of "Add INVITE Max-forward 70" by using the additional syntax pattern (Add x1 x2) of the pattern DB26.
　出力部２４は、生成部２３が生成したConfig６１を出力する（ステップＳ１４）。また、生成部２３は、生成したConfig６１を検証するために、変換前SIP信号４１をConfig６１で変換した変換後のSIP信号６２を生成してもよい。この場合、出力部２４は、Config６１とともに、変換後のSIP信号６２を出力する。 The output unit 24 outputs the Config 61 generated by the generation unit 23 (step S14). Further, in order to verify the generated Config 61, the generation unit 23 may generate the converted SIP signal 62 obtained by converting the pre-conversion SIP signal 41 with the Config 61. In this case, the output unit 24 outputs the converted SIP signal 62 together with the Config 61.
　以上説明した本実施形態のConfig生成装置２は、変換前のSIP信号と、変換後のSIP信号との差分を抽出し、前記差分を解析して変換情報を生成する差分抽出部と、前記変換情報に基づいて、ネットワーク装置に前記変換前のSIP信号を前記変換後のSIP信号に変換させる設定情報を生成する生成部と、を備える。 The Config generation device 2 of the present embodiment described above has a difference extraction unit that extracts the difference between the SIP signal before conversion and the SIP signal after conversion, analyzes the difference, and generates conversion information, and the conversion. Based on the information, the network device includes a generation unit that generates setting information for converting the SIP signal before conversion into the SIP signal after conversion.
　すなわち、本実施形態では、インタワーク条件などの変換ルールからconfigを設計および作成するのではなく、実際に送受信される変換前後のSIP信号を比較することで、configを自動生成する。 That is, in this embodiment, the config is automatically generated by comparing the SIP signals before and after the conversion that are actually transmitted and received, instead of designing and creating the config from the conversion rules such as the interwork conditions.
　これにより、本実施形態では、保守運用者によるConfigの設計および作成が不要となるため、保守運用者に高い技術スキルが要求されず、Configの設計および作成の負荷を削減することができる。 As a result, in this embodiment, the maintenance operator does not need to design and create the Config, so that the maintenance operator is not required to have high technical skills, and the load of designing and creating the Config can be reduced.
　また、本実施形態の変換前のSIP信号、および、変換後のSIP信号は、自社網と他社網とを相互接続するためのインタワーク条件に従って生成され、ネットワーク装置は、自社網と前記他社網との境界に設置されるNNI-GWである。これにより、本実施形態では、各通信事業者（キャリア）間のIP相互接続に向けた相互接続性確認試験が容易になり、また、NNI-GW１１の開発工数および期間を低減することができる。 Further, the SIP signal before conversion and the SIP signal after conversion of the present embodiment are generated according to the interwork conditions for interconnecting the company's network and the network of the other company, and the network device is the network of the company and the network of the other company. It is an NNI-GW installed on the boundary with. As a result, in the present embodiment, the interoperability confirmation test for IP interconnection between each telecommunications carrier (carrier) becomes easy, and the development man-hours and period of NNI-GW11 can be reduced.
　なお、本発明は上記実施形態に限定されるものではなく、その要旨の範囲内で数々の変形が可能である。 The present invention is not limited to the above embodiment, and many modifications can be made within the scope of the gist thereof.
　１１、１２：NNI-GW
　２　：Config生成装置（設定情報生成装置） 
　２１：入力部
　２２：差分抽出部
　２３：生成部
　２４：出力部
　２５：構文定義DB
　２６：パターンDB 11, 12: NNI-GW
2: Config generator (setting information generator)
21: Input unit 22: Difference extraction unit 23: Generation unit 24: Output unit 25: Syntax definition DB
26: Pattern DB

Claims (8)

  1. 　設定情報生成装置であって、
    　変換前のSIP信号と、変換後のSIP信号との差分を抽出し、前記差分を解析して変換情報を生成する差分抽出部と、
    　前記変換情報に基づいて、ネットワーク装置に前記変換前のSIP信号を前記変換後のSIP信号に変換させる設定情報を生成する生成部と、を備えること
    　を特徴とする設定情報生成装置。     It is a setting information generator
    A difference extraction unit that extracts the difference between the SIP signal before conversion and the SIP signal after conversion, analyzes the difference, and generates conversion information.
    A setting information generation device, characterized in that the network device includes a generation unit that generates setting information for converting the SIP signal before conversion into the SIP signal after conversion based on the conversion information.
  2. 　請求項１記載の設定情報生成装置であって、
    　SIPの構文情報を記憶する構文記憶部を、備え、
    　前記差分抽出部は、前記差分のうち前記構文情報に対応する部分を、前記変換情報として抽出すること
    　を特徴とする設定情報生成装置。     The setting information generator according to claim 1.
    It has a syntax storage unit that stores SIP syntax information.
    The difference extraction unit is a setting information generation device characterized in that a portion of the difference corresponding to the syntax information is extracted as the conversion information.
  3. 　請求項１または２記載の設定情報生成装置であって、
    　前記ネットワーク装置の機種毎に、前記設定情報の構文パターンを記憶するパターン記憶部を、備え、
    　前記生成部は、前記パターン記憶部を用いて、前記ネットワーク装置の機種毎に前記設定情報を生成すること
    　を特徴とする設定情報生成装置。     The setting information generator according to claim 1 or 2.
    A pattern storage unit for storing the syntax pattern of the setting information is provided for each model of the network device.
    The generation unit is a setting information generation device characterized in that the pattern storage unit is used to generate the setting information for each model of the network device.
  4. 　請求項３記載の設定情報生成装置であって、
    　前記ネットワーク装置の機種の指定を受け付ける入力部を、備え、
    　前記生成部は、前記パターン記憶部の前記指定された機種の構文パターンを用いて、前記機種用の設定情報を生成すること
    　を特徴とする設定情報生成装置。     The setting information generator according to claim 3.
    It is equipped with an input unit that accepts the designation of the model of the network device.
    The generation unit is a setting information generation device characterized in that the setting information for the model is generated by using the syntax pattern of the designated model of the pattern storage unit.
  5. 　請求項１から４のいずれか１項に記載の設定情報生成装置であって、
    　前記変換前のSIP信号、および、前記変換後のSIP信号は、自社網と他社網とを相互接続するためのインタワーク条件に従って生成され、
    　前記ネットワーク装置は、前記自社網と前記他社網との境界に設置されるNNI-GW（Network to Network Interface-Gateway）であること
    　を特徴とする設定情報生成装置。     The setting information generator according to any one of claims 1 to 4.
    The SIP signal before conversion and the SIP signal after conversion are generated according to the interwork conditions for interconnecting the company's network and the network of another company.
    The network device is a setting information generation device characterized by being an NNI-GW (Network to Network Interface-Gateway) installed at the boundary between the company's own network and the other company's network.
  6. 　設定情報生成装置が行う設定情報生成方法であって、
    　変換前のSIP信号と、変換後のSIP信号との差分を抽出し、前記差分を解析して変換情報を生成する差分抽出ステップと、
    　前記変換情報に基づいて、ネットワーク装置に前記変換前のSIP信号を前記変換後のSIP信号に変換させる設定情報を生成する生成ステップと、を行うこと
    　を特徴とする設定情報生成方法。     It is a setting information generation method performed by the setting information generation device.
    A difference extraction step that extracts the difference between the SIP signal before conversion and the SIP signal after conversion, analyzes the difference, and generates conversion information.
    A setting information generation method comprising performing a generation step of generating setting information for causing a network device to convert a SIP signal before conversion into a SIP signal after conversion based on the conversion information.
  7. 　請求項６記載の設定情報生成方法であって、
    　前記設定情報生成装置は、SIPの構文情報を記憶する構文記憶部を、備え、
    　前記差分抽出ステップは、前記差分のうち前記構文情報に対応する部分を、前記変換情報として抽出すること
    　を特徴とする設定情報生成方法。     The setting information generation method according to claim 6.
    The setting information generator includes a syntax storage unit that stores SIP syntax information.
    The difference extraction step is a setting information generation method characterized in that a portion of the difference corresponding to the syntax information is extracted as the conversion information.
  8. 　請求項１から５のいずれか１項に記載の設定情報生成装置として、コンピュータを機能させること、を特徴とする設定情報生成プログラム。 A setting information generation program characterized in that a computer functions as the setting information generation device according to any one of claims 1 to 5.
PCT/JP2019/020231 2019-05-22 2019-05-22 Setting information generation device, setting information generation method, and setting information generation program WO2020235036A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/020231 WO2020235036A1 (en) 2019-05-22 2019-05-22 Setting information generation device, setting information generation method, and setting information generation program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/020231 WO2020235036A1 (en) 2019-05-22 2019-05-22 Setting information generation device, setting information generation method, and setting information generation program

Publications (1)

Publication Number Publication Date
WO2020235036A1 true WO2020235036A1 (en) 2020-11-26

Family

ID=73459305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/020231 WO2020235036A1 (en) 2019-05-22 2019-05-22 Setting information generation device, setting information generation method, and setting information generation program

Country Status (1)

Country Link
WO (1) WO2020235036A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7347861B1 (en) 2022-03-11 2023-09-20 Ｎｅｃプラットフォームズ株式会社 Information processing device, information processing method, and information processing program

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007295385A (en) * 2006-04-26 2007-11-08 Oki Electric Ind Co Ltd Presence server, and terminal status notification method
WO2011010601A1 (en) * 2009-07-21 2011-01-27 日本電気株式会社 Gateway device, data converting method, and program
JP2014138284A (en) * 2013-01-17 2014-07-28 Nippon Telegr & Teleph Corp <Ntt> Apl-scm-fe and application coordination method
JP2017174147A (en) * 2016-03-24 2017-09-28 日本電信電話株式会社 Conversion rule generation device, and conversion rule generation method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007295385A (en) * 2006-04-26 2007-11-08 Oki Electric Ind Co Ltd Presence server, and terminal status notification method
WO2011010601A1 (en) * 2009-07-21 2011-01-27 日本電気株式会社 Gateway device, data converting method, and program
JP2014138284A (en) * 2013-01-17 2014-07-28 Nippon Telegr & Teleph Corp <Ntt> Apl-scm-fe and application coordination method
JP2017174147A (en) * 2016-03-24 2017-09-28 日本電信電話株式会社 Conversion rule generation device, and conversion rule generation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7347861B1 (en) 2022-03-11 2023-09-20 Ｎｅｃプラットフォームズ株式会社 Information processing device, information processing method, and information processing program

Similar Documents

Publication Publication Date Title
US10164961B2 (en) Dynamic web services server
US7287067B2 (en) Dynamically configuring a server computer
JP2018536935A (en) Access request conversion method and apparatus
US20120226487A1 (en) Enabling end-to-end testing of applications across networks
US8819286B2 (en) Methods, systems, and apparatus for processing messaging data sets using structured data sets
JP5716795B2 (en) Service control apparatus, service control system and method
US20200235982A1 (en) Techniques for interfacing between web services and interface description language (idl)-based remote procedure call (rpc) services and an optical communication system implementing same
WO2020235036A1 (en) Setting information generation device, setting information generation method, and setting information generation program
CN115623000B (en) Method and device for efficiently distributing data on digital networking
US20230034743A1 (en) Methods and apparatus for adding and/or providing stir/shaken diversion information
US20140379932A1 (en) Setting up communication between a web application and a terminal
KR100725853B1 (en) Device and method for testing multiple protocols
US11792069B2 (en) Processing instructions to configure a network device
CN104185249B (en) Based on lan device discover method and the dynamic link library of Android system
JP5465260B2 (en) Method, system and apparatus for configuring interconnections between IP domains
KR101982308B1 (en) Apparatus and method for protocol modeling
TW202241095A (en) Method for automatic derivation of attack paths in a network
KR20160064990A (en) Method and apparatus for -v-c interoperation
JP4680069B2 (en) Method for dealing with interconnection of applications where implementation differences exist in SIP protocol
El Hamzaoui et al. A formal model for WebRTC signaling using SDL
WO2022044190A1 (en) Generating device, generating method, and generating program
Burnett Webrtc: Handling media on the web
WO2023157171A1 (en) Optical path controlling device, optical path controlling method, and program
US20220312211A1 (en) System and device for verifying function of radio base station
JP2015226074A (en) Traffic reproduction system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19930016

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19930016

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP