201027948 六、發明說明： 【發明所屬之技術領域】 本發明係種通訊協定互通_置及其方法，_為—種消彌⑽ UNI與IETF GMPLS此兩種控制平面技術之光用戶輯介面差異性的轉換 裝置及其方法。 【先前技術】 藉由控制平面將傳輸網路智能化，把傳統集中式網管系統部份功能下 放至設備，使傳輸網路中每一部設備皆具備路徑的建立、移除等信令功能 與蒐集網路拓撲資訊、計算傳輸路徑等路由功能，以達成快速供裝的目的， 使電信業者能夠更為靈活、快速地調度光通路，減少維運成本，並藉以開 創新型態的服務，進而增加營收。 控制平面需要標準化，才能在不同種類、不同廠牌的設備間傳遞各種 控制信號，目前共有三種控制平面的標準，分別是ITU_T (Intemati〇nal Telecommunication Union - Telecommunication Standardization Sector of ITU) 的 ASON ( Automatically Switched Optical Network )、IETF 的 GMPLS 以及 OIF UNI ’其中又可依所採用的網路模型分成兩大類：Peer模型與 模型，ITU-T ASON與OIF UNI皆遵循Overlay模型，IETF GMPLS則屬於 Peer模型。 在Peer模型中，網路中每一部設備皆支援信令與路由通訊協定，用戶 端網路與光傳輸網路不分彼此共享資訊，路由資訊可互相交流。但在Overlay 模型中’光傳輸網路為一封閉的系統，不對外交流路由資訊，用戶端網路 無法得知光傳輸網路的拓撲，僅能藉由UNI與光傳輸網路連接，用戶端網 201027948 路所發㈣控細包只能傳送給應另—_光傳油路邊_ 轉換成光傳輸網路内部的信令機制來處理。 電信業傳統上皆遵猶ΙΤυ·τ騎標準__定的—系顺準，因此 多數光傳輸設備大廠制ΐτυ·τ ASON架構，其設備的光用戶網路介面遵 循OIF UNI標準，而路由器礙商一向採用压叮系列標準主要遵循Μ 模型的丽GMPLS，目為設計理念的㈣，〇Π7麵與黯GMpLS所 使用的網路通罐定大至_但又有麵差異，兩者法互通造成智 能化控制平面·果大打折扣，這種航目前⑽祕局，兩方互不相讓， 只能隨著時_流逝’留待未來市場的發展賴技術的出現來解決。 由此可見’上述習用方式仍有諸多缺失，實非一良善之設計，而亟待 加以改良。 本案發明人紐上述制方柄衍生的各項缺點，乃亟思加以改良創 新，並經苦心孤歸心研究後’终於成功研發完成本件光用戶網路介面轉 換裝置及其方法。 【發明内容】 本發明之目的即在於提供-種光用戶網路介面轉換裝置及其方法，係 運用OIFUNI、IETFGMPLS兩種控制平面技術與電滕軟艘技術以達成光用 戶網路介面通訊協定的轉換，使得遵循不同控制平面標準之光用戶網路介 面可以互通。 達成上述發明目的之光用戶網路介面轉換裝置及其方法，係利用與光 傳輪設備相連之OIF UNI網路介面、與路由器相連的正作GMpLS網路介 面、光用戶網路介面通訊協定分析與轉換技術，以及電腦軟體程式設計， 201027948 以達成光用戶網路介面通訊協定轉換之目的。本發明使用兩組網路介面， -分別連接至〇IF UNI的設備與IETF GMPLS設備，擷取未經轉換的原始控 制平面之通訊協定控制封包。本發明的光用戶網路介面通訊協定分析與轉 換技術，可解析控制封包之内容並將其轉換成另一種格式，再從相對應的 網路介面傳送出去，藉以達成遵循不同標準之控制平面可互通。 可達成上述發明目的之光用戶網路介面（User-to-Network Interface ; UNI)轉換裝置及其方法，係可將 IETF (Internet Engineering Task Force ) • 所制訂的 GMPLS (Generalized Multi-Protocol Label Switching)通訊協定 控制封包轉換成為OIF (Optical Internetworking Forum)所制訂的UNI通 訊協定控制封包’亦可將OIF UNI版本的通訊協定控制封包轉換成為iexf GMPLS版本’以達成分別遵循OIF UNI標準與IETF GMPLS標準之設備 的控制平面得以互通之目的’藉以提供端對端的智能化傳輸服務。該轉換 裝置之組成包括有：（一）OIF UNI網路介面，用以收發來自〇iF UNI設備 之控制封包；（二）IETF GMPLS網路介面，用以收發來自IETF GMPLS設 ® 備之控制封包；（三）OIF UNI至IETF GMPLS轉換模組，將來自off un! 介面的控制封包轉換為IETF GMPLS格式並從IETF GMPLS網路介面傳送 出去、（四）IETF GMPLS至OIF UNI轉換模組，將來自IETF GMPLS介 面的控制封包轉換為OIF UNI格式並從OIF UNI網路介面傳送出去。 【實施方式】 請參間圖一所不，為本發明光用戶網路介面轉換裝置之應用架構圖。 光用戶網路介面轉換裝置3之兩端分別與遵循OIF UNI標準的網路設傷j 以及遵循IETF GMPLS標準的網路設備2連接。本發明光用戶網路介面轉 201027948 換裝置係為OIF UNI與IETF GMPLS兩標準之間的橋樑，將所接收的〇IF UNI控制封包轉換成IETF GMPLS格式，亦將所接收的正xf GMPLS控制 封包轉換成OIF UNI格式，使得遵循不同控制平面標準之光用戶網路介面 可以互通’以充分發揮智能化控制平面的功用，可彈性、自動化地調度光 通路，迅速提供服務。 其實施方式請參閲圖二所示，為本發明光用戶網路介面轉換裝置之系 統方塊圖’其中包含：OIF UNI網路介面31、IETF GMPLS網路介面32、 OIF UNI 至 IETF GMPLS 轉換模組 33、IETF GMPLS 至 OIF UNI 轉換模組 34。 其用於轉換OIF UNI通訊協定為IETF GMPLS通訊協定之實施方式 為：OIFUNI網路介面31收到來自OIFUNI設備的控制封包後，交給OIF UNI至DETF GMPLS轉換模組33進行通訊協定分析，解讀封包之内容並分 類後，再進行封包格式轉換，將OIF UNI封包轉換成IETF GMPLS格式， 其轉換方法如圖三的OIF UNI至IETF GMPLS轉換模組流程圖所示，可包 • 含：⑴ 偵測並處理未使用隧道功能或採用GRE (Generic Routing Encapsulation)隧道功能或IP-in-IP隧道功能的OIF UNI控制封包；（b)解 讀OIF UNI控制封包之内容並將之區分為需要轉換、不必轉換或不該出現 在光用戶網路介面的封包等三大類後再各別處理；（c)將不必轉換的控制 封包直接交給IETF GMPLS網路介面32透通傳送給相鄰的IETF GMPLS 設備·’（d)丟棄不該出現在光用戶網路介面的封包；（e)將需要轉換的控 制封包’依據IETF GMPLS標準之規定，更改OIFUNI封包内容中關於網 路位址之設定’使其符合IETF GMPLS格式；（f)將OIF UNI所採用，但 201027948201027948 VI. Description of the Invention: [Technical Fields of the Invention] The present invention relates to communication protocol interworking _ _ and its method, _ is a kind of elimination (10) UNI and IETF GMPLS two control plane technologies of optical user interface differences Conversion device and method therefor. [Prior Art] By intelligently transmitting the transmission network through the control plane, some functions of the traditional centralized network management system are decentralized to the device, so that each device in the transmission network has signaling functions such as path establishment and removal. Collecting network topology information, calculating transmission routes and other routing functions to achieve fast delivery, enabling telecom operators to more flexibly and quickly schedule optical channels, reduce maintenance costs, and open up new types of services. Increase revenue. The control plane needs to be standardized to transmit various control signals between different types and different brands of devices. There are currently three control plane standards, which are ASON (Automatically Switched by ITU_T (Intemati〇nal Telecommunication Union - Telecommunication Standardization Sector of ITU)). Optical Network ), IETF's GMPLS and OIF UNI ' can be divided into two categories according to the adopted network model: Peer model and model, ITU-T ASON and OIF UNI both follow the Overlay model, and IETF GMPLS belongs to the Peer model. In the Peer model, each device in the network supports signaling and routing protocols. The user network and the optical transmission network share information without each other, and routing information can communicate with each other. However, in the Overlay model, the optical transmission network is a closed system, and the routing information is not exchanged. The client network cannot know the topology of the optical transmission network, and can only connect to the optical transmission network through the UNI. The network 201027948 issued by the road (four) control fine package can only be transmitted to the other - _ light transmission roadside _ converted into the internal signaling mechanism of the optical transmission network to deal with. The telecommunications industry has traditionally followed the standards of ΙΤυ τ τ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Obstruction has always adopted the series of compression standards mainly to follow the model of the GGMPLS, the purpose of the design concept (4), 〇Π7 surface and 黯GMpLS network access can be set to _ but there are differences, the two methods of interoperability This has caused the intelligent control plane to be greatly discounted. This kind of aviation is currently (10) secret, and the two parties do not give each other, and can only be resolved as the time _ lapses to the future market development depends on the emergence of technology. It can be seen that there are still many shortcomings in the above-mentioned methods of use, which is not a good design and needs to be improved. The inventors of this case have all the shortcomings derived from the above-mentioned formula, and they have improved and innovated, and after painstaking research, they finally succeeded in researching and developing this piece of optical user network interface conversion device and its method. SUMMARY OF THE INVENTION The object of the present invention is to provide an optical user network interface conversion device and a method thereof, which use OIFUNI and IETGFMPLS two control plane technologies and an electric soft-ship technology to achieve an optical user network interface communication protocol. The conversion enables interoperability of optical user network interfaces that follow different control plane standards. The optical user network interface conversion device and the method thereof for achieving the above object are analyzed by using an OIF UNI network interface connected to the optical transmission device, a GMpLS network interface connected to the router, and an optical user network interface communication protocol. And conversion technology, as well as computer software programming, 201027948 to achieve the purpose of the optical user network interface communication protocol conversion. The present invention uses two sets of network interfaces, - respectively connected to the 〇IF UNI device and the IETF GMPLS device, to retrieve the unconverted original control plane protocol control packet. The optical user network interface communication protocol analysis and conversion technology of the present invention can parse and control the content of the packet and convert it into another format, and then transmit it from the corresponding network interface, so as to achieve a control plane that can meet different standards. Interoperability. The User-to-Network Interface (UNI) conversion device and the method thereof for achieving the above object of the invention are GMPLS (Generalized Multi-Protocol Label Switching) which can be developed by the Internet Engineering Task Force (IETF). The protocol control packet is converted into the UNI protocol control packet developed by the OIF (Optical Internetworking Forum), and the OIF UNI version of the protocol control packet can also be converted into the iexf GMPLS version to achieve the OIF UNI standard and the IETF GMPLS standard respectively. The device's control plane is interoperable for the purpose of providing end-to-end intelligent transport services. The conversion device comprises: (1) an OIF UNI network interface for transmitting and receiving control packets from the 〇iF UNI device; and (2) an IETF GMPLS network interface for transmitting and receiving control packets from the IETF GMPLS device (3) The OIF UNI to IETF GMPLS conversion module converts the control packet from the off un! interface into the IETF GMPLS format and transmits it from the IETF GMPLS network interface, and (4) the IETF GMPLS to OIF UNI conversion module. The control packets from the IETF GMPLS interface are converted to the OIF UNI format and transmitted from the OIF UNI network interface. [Embodiment] Please refer to Figure 1 for an application architecture diagram of the optical user network interface conversion device of the present invention. Both ends of the optical subscriber network interface switching device 3 are respectively connected to the network device 2 complying with the OIF UNI standard and the network device 2 complying with the IETF GMPLS standard. The optical user network interface of the present invention is transferred to the 201027948 switching device as a bridge between the OIF UNI and the IETF GMPLS standard, and the received 〇IF UNI control packet is converted into the IETF GMPLS format, and the received positive xf GMPLS control packet is also received. It is converted into OIF UNI format, so that optical user network interfaces that follow different control plane standards can communicate with each other to fully utilize the functions of intelligent control planes, and can flexibly and automatically schedule optical paths and provide services quickly. Referring to FIG. 2, the system block diagram of the optical user network interface conversion device of the present invention includes: OIF UNI network interface 31, IETF GMPLS network interface 32, OIF UNI to IETF GMPLS conversion mode. Group 33, IETF GMPLS to OIF UNI conversion module 34. The implementation method for converting the OIF UNI communication protocol to the IETF GMPLS communication protocol is as follows: After receiving the control packet from the OIFUNI device, the OIFUNI network interface 31 hands over the OIF UNI to the DETF GMPLS conversion module 33 for communication protocol analysis and interpretation. After the content of the packet is classified and then converted into a packet format, the OIF UNI packet is converted into an IETF GMPLS format. The conversion method is shown in the flow chart of the OIF UNI to IETF GMPLS conversion module shown in FIG. 3, which can include: (1) Detect Measure and process the OIF UNI control packet that does not use the tunnel function or adopts the GRE (Generic Routing Encapsulation) tunnel function or the IP-in-IP tunnel function; (b) interpret the content of the OIF UNI control packet and distinguish it into the need to convert, do not have to (c) The control packets that do not need to be converted are directly handed over to the IETF GMPLS network interface 32 for transmission to the adjacent IETF GMPLS device, after conversion or not in the three categories of the packet of the optical user network interface; · '(d) discard packets that should not appear in the optical user's network interface; (e) control packets that need to be converted 'Change OIFUNI packets according to IETF GMPLS standards Capacity set regarding the road network address' format to conform to IETF GMPLS; (f) the OIF UNI employed, but 201027948
IETF GMPLS未使用的參數之資訊紀錄下來；（g)依據ffiTF GMPLS標準 .之規定’移除OIF UNI所採用，但IETF GMPLS未使用的參數，使其符合 IETF GMPLS格式；（h)依據IETF GMPLS標準之規定，新增IETF GMPLS 所使用，但OIF UNI未使用的參數，此參數之數值源自於先前所紀錄的〇iF UNI資訊；（i)依據IETF GMPLS標準之規定，更改OIF UNI封包内容中 與IETF GMPLS標準不一致的參數值，使其符合ffiTF GMPLS格式；本轉 換模組使用軟體技術，可配合控制平面相關國際標準未來的發展，增加新 的轉換功能。最後再由IETF GMPLS網路介面32傳送給相鄰的ffiTF GMPLS設備。 其用於轉換IETF GMPLS通訊協定為OIF UNI通訊協定之實施方式 為:IETF GMPLS介面32接收IETF GMPLS設備所送出的控制封包，經IETF GMPLS至OIF UNI轉換模組34解讀内容、分類，並進行封包格式轉換， 其轉換方法如圖四的IETF GMPLS至OEFUNI轉換模組流程囷所示，可包 含：（a)偵測並處理未使用隧道功能或採用GRE隧道功能或ip_in_ip隧道 φ 功能的IETF GMPLS控制封包；（b)解讀IETF GMPLS控制封包之内容並 將之區分為需要轉換、不必轉換或不該出現在光用戶網路介面的封包等三 大類後再各別處理；（c)將不必轉換的控制封包直接交給OIF μ網路介 面31透通傳送給相鄰的〇iF UNI設備；（d)丢棄不該出現在光用戶網路介 面的封包；（e)將需要轉換的控制封包，依據on? _標準之規定，更改 IETF GMPLS封包内容中關於網路位址之設定，使其符合〇IF Μ格式;⑴ 將IETF GMPLS所採用’但〇IF UNI未使用的參數之資訊紀錄下來；（g) 依據OIF UNI標準之規定，移除IETF GMPLS所採用，但OIF unj未使用 201027948 .的參數，使其符合OIFWI格式;（h)判斷OIFUNI的版本，並依據OIFUNI 1.0或OIF UNI 2.0標準之規定，新增OIF UNI所使用，但IETF GMPLS未 使用的參數，此參數之數值源自於先前所紀錄的IETF GMPLS資訊；（i) 依據OIFUNI標準之規定，更改扭17 01^1^封包内容中與〇吓1；>11標準 不一致的參數值，使其符合OIF UNI格式；本轉換模組使用軟體技術，可 配合控制平面相關國際標準未來的發展，增加新的轉換功能。最後由OIF UNI網路介面31傳送給相鄰的〇IF UNI設備。於是位於本發明光用戶網路 • 介面轉換裝置兩端之OIF UNI設備及IETF GMPLS設備皆會收到符合相關 標準的控制平面封包，因此可正常運作。 本發明所提供之光用戶網路介面轉換裝置及其方法，與其他習用技術 相互比較時，更具備下列優點： 1·本發明為首位考量網路設備發展現況，使用OIF UNI與IETF GMPLS兩種控制平面技術，讓遵循不同標準之un!得以互通。 2. 本發明為可擴充的設計’藉由程式碼之更新可隨時變更與增加新的 • 轉換功能，以配合控制平面相關國際標準未來的發展。 3. 本發明可大幅提高電信業者建設智能化傳輸網路的自主性，不再完 全受制於OIF UNI與IETF GMPLS兩大陣營的角力，其經濟效益 非常明顯。 上列詳細說明係針對本發明之一可行實施例之具體說明，惟該實施例 並非用以限制本發明之專利範团，凡未脫離本發明技藝精神所為之等效實 施或變更，均應包含於本案之專利範圍中。 綜上所述，本案不但在技術思想上確屬創新，並能較習用物品增進上 201027948 述多項功效’應以充分符合新穎性及進步性之法定發明專利要件，爰依法 •提出申請’懇請貴局核准本件發明專利申請案，以勵發明，至感德便。 【圏式簡單說明】 請參閱以下有關本發明之詳細說明及其附圖，將可進一步瞭解本發明 之技術内容及其目的功效；有關附圖為： 圖一為本發明光用戶網路介面轉換裝置及其方法之應用架構圖； 圖二為該光用戶網路介面轉換裝置及其方法之系統方塊圖； 丨圖三為該光用戶網路介面轉換裝置及其方法之〇正UNI至IETF GMPLS轉換模組流程圖；以及 圖四為該光用戶網路介面轉換裝置及其方法之IETF GMPLS至ΟΠ7 UNI轉換模組流程圖。 【主要元件符號說明】 1 遵循OIFUNI標準的網路設備 2 遵循IETF GMPLS標準的網路設備Information on unused parameters of IETF GMPLS is recorded; (g) According to the ffiTF GMPLS standard, 'removal of OIF UNI, but unused parameters of IETF GMPLS, making it conform to IETF GMPLS format; (h) according to IETF GMPLS The standard stipulates that the IETF GMPLS is used, but the OIF UNI is not used. The value of this parameter is derived from the previously recorded 〇iF UNI information; (i) the OIF UNI packet content is changed according to the IETF GMPLS standard. The parameter values inconsistent with the IETF GMPLS standard make it conform to the ffiTF GMPLS format; the conversion module uses software technology, which can cooperate with the future development of international standards related to control planes, and add new conversion functions. Finally, it is transmitted by the IETF GMPLS network interface 32 to the adjacent ffiTF GMPLS device. The implementation method for converting the IETF GMPLS protocol to the OIF UNI protocol is: the IETF GMPLS interface 32 receives the control packet sent by the IETF GMPLS device, and interprets the content, classifies, and encapsulates the packet by the IETF GMPLS to OIF UNI conversion module 34. The format conversion method is as shown in the IETF GMPLS to OEFUNI conversion module flow shown in FIG. 4, and may include: (a) detecting and processing the unused tunnel function or using the IETF GMPLS control of the GRE tunnel function or the ip_in_ip tunnel φ function. (b) Interpret the contents of the IETF GMPLS control packet and distinguish it into three categories, which need to be converted, not converted, or not appearing in the optical user network interface, and then processed separately; (c) will not have to be converted. The control packet is directly handed over to the OIF μ network interface 31 for transmission to the adjacent 〇iF UNI device; (d) the packet that should not appear in the optical user network interface is discarded; (e) the control packet that needs to be converted, According to the on? _ standard, change the setting of the network address in the IETF GMPLS packet content to conform to the 〇IF format; (1) the IETF GMPLS adopted 'but 〇 IF UNI unused parameter The information is recorded; (g) According to the OIF UNI standard, the IETF GMPLS is removed, but OIF unj does not use the parameters of 201027948. It conforms to the OIFWI format; (h) determines the version of OIFUNI and is based on OIFUNI 1.0 Or the OIF UNI 2.0 standard, the new OIF UNI used, but the IETF GMPLS unused parameters, the value of this parameter is derived from the previously recorded IETF GMPLS information; (i) according to the OIFUNI standard, change the twist 17 01^1^ The contents of the packet are inconsistent with the intimidation 1; >11 standard, so that it conforms to the OIF UNI format; this conversion module uses software technology, which can be used in conjunction with the future development of international standards related to control planes, adding new ones. Conversion function. Finally, it is transmitted by the OIF UNI network interface 31 to the adjacent 〇IF UNI device. Therefore, the OIF UNI device and the IETF GMPLS device located at both ends of the optical user network interface switching device of the present invention receive a control plane packet conforming to the relevant standard, and thus can operate normally. The optical user network interface conversion device and the method thereof provided by the invention have the following advantages when compared with other conventional technologies: 1. The present invention is the first consideration of the development of network equipment, using OIF UNI and IETF GMPLS. The control plane technology allows the un! 2. The present invention is an expandable design. The new code conversion function can be changed and added at any time by updating the code to match the future development of international standards related to the control plane. 3. The invention can greatly improve the autonomy of the telecommunication industry to construct an intelligent transmission network, and is no longer completely subject to the wrestling of the two camps of OIF UNI and IETF GMPLS, and the economic benefits are very obvious. The detailed description of the present invention is intended to be illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention. In the scope of the patent in this case. To sum up, this case is not only innovative in terms of technical thinking, but also can be used to improve the number of functions of the customary articles in the 201027948. It should be in accordance with the statutory invention patents that fully meet the novelty and progress. The bureau approved the application for the invention patent, in order to invent the invention, to the sense of virtue. BRIEF DESCRIPTION OF THE DRAWINGS The following is a detailed description of the present invention and its accompanying drawings, which will further explain the technical contents of the present invention and the functions of the present invention. The related drawings are as follows: FIG. 1 is an optical user network interface conversion of the present invention. FIG. 2 is a system block diagram of the optical user network interface conversion device and method thereof; FIG. 3 is a schematic diagram of the optical user network interface conversion device and its method 〇 UNI to IETF GMPLS The conversion module flow chart; and FIG. 4 is a flow chart of the IETF GMPLS to ΟΠ7 UNI conversion module of the optical user network interface conversion device and method thereof. [Main component symbol description] 1 Network equipment conforming to OIFUNI standard 2 Network equipment complying with IETF GMPLS standard
3 光用戶網路介面轉換裝置 31 OIFUNI網路介面 32 IETF GMPLS網路介面 33 OIFUNI 至 IETF GMPLS 轉換模組 34 IETF GMPLS 至 OIF UNI 轉換模組 93 Optical User Network Interface Switching Device 31 OIFUNI Network Interface 32 IETF GMPLS Network Interface 33 OIFUNI to IETF GMPLS Conversion Module 34 IETF GMPLS to OIF UNI Conversion Module 9