200820664 〜九、發明說明： -【發明所屬之技術領域】 本發明係有關於一種交換I置，更詳而言之，係 於-種應用於網路架構中且具擴充功能之交換1 備援系統。 、1直次具 【先前技術】 隨耆電子資料處理裝置的普及與網路技術的成熟，網 路已經成為生活中f訊傳遞與取得不可或缺的—部份。無 論是政府機關、公51企業、學校乃至於社區家庭，為求^ =傳輪效率的提升’使用者間透過網路進行資訊傳遞已相 當普遍。 為了使多數的終端裝置使用者㈣有效率的共享網 ，頻^ ’逐有改良傳統的集線器（Hub)之交換式集線器 間稱父換器（Switch)之產生。交換器與集線器在網路内 的功用大致相同，其間最大的差異在於交換器的每個埠 ® 都享有—個專屬的頻寬並具備資料交換功能，使得 網路，輸效能得於同一時間内所能傳輪的資料量較大；而 集線器為則是所有的埠（p〇rt)共享一個頻寬。 具體而言’交換器用於連結網路中的實體區段，使區 段間的資料能相互流通。交換器在_ (〇pen加⑽200820664 ～ IX, invention description: - [Technical field to which the invention pertains] The present invention relates to an exchange I arrangement, and more particularly to an exchange 1 with an extended function applied to a network architecture. system. 1, the first time [previous technology] With the popularity of electronic data processing devices and the maturity of network technology, the network has become an indispensable part of the transmission and acquisition of life. Regardless of whether it is a government agency, a public enterprise, a school, or even a community family, it is quite common for users to transmit information through the Internet in order to improve the efficiency of the transmission. In order to enable most terminal device users (4) to efficiently share the network, the frequency of the switch is improved by the switching hub of the traditional hub (Hub). The switch and the hub have the same function in the network. The biggest difference between them is that each switch of the switch enjoys a unique bandwidth and data exchange function, so that the network and the performance are at the same time. The amount of data that can be transmitted is large; while the hub is all 埠 (p〇rt) sharing a bandwidth. Specifically, the switch is used to connect physical segments in the network so that the data between the segments can circulate. The exchanger is at _ (〇pen plus (10)
Interconnect ion)模型的第二層（一打2 )操作，根據 第二層的位址來引導流量；例如乙太網路（Ethernet) M^C (/edia Access Control Address)位址。有些交換 器也提供其他功能，例如虛擬區域網路及第三層交換等功 19315 6 200820664 旎。父換裔能自行設定並會聽取每個乙太網路連接埠的流 量，並得知連接埠所連結終端褒置的連結情況。接著，^ 換器會直接傳送流量給目的連接痒。交換流程會依硬體的 處理速度，無延遲地有效執行。 習知的父換器所提供連接至該終端裝置的連接蜂均 廠商額定者。舉例而言’製造商會生產具有⑴固 接璋的父換器，於12個連接琿中有^連接璋必須盘 太網路)連接’以提供與其相連的終端裝 it該網路與其他遠端的終端裝置連接，剩餘的u個 埠僅錢供11個如飼服器等之終端襄置連接。實際 縮小體積，多以刀鋒式伺服器形二 鋒π 叩曰別早機相通常能容納12個刀 二:： ，若以具有12個刀鋒式伺服器之單- β W、相對應具有12個連接埠的交換器 刀鋒飼服器將因為該交換器中的i個連 -中们 ⑩接’ Μ連接朗路，除非額外增加—個交換器二路而連 增的父換器僅提供丨個連义 、 、、、，斤 :置扣除另1個與網路連接的連鱗，則有丨。個V:璋 種具有擴充功能的交換 4上所述，如何能夠提供一 器，遂成為目前亟待解決的問題 【發明内容】 為解料”知技㈣祕，本發 提供一種且右捭亡丄Α 文㈡曰7社於 /、有擴充功能之交換裝置及其備援系統，使交換 19315 7 200820664 --裝置所提供的連接埠足以提供伺服器機箱内所有的刀鋒 •-伺服為與外部網路建立網路連接的關係。 ，本發明之再一目的在於提供一種具有擴充功能之交 換裝置的備援系統，以在主較換裝置發生故障時，通知 可正常運作的備用交換裝置接管該發生故障的主用交換 裝置之工作。 ' 為達上述目的及其他目的，本發明提供一種具有擴充 功能之交換裝置及其備援系統。該具有擴充功能之交換裝 置係應用於區域網路内的複數個終端裝置中，誃具有锆充 ，之交換裝置係包括:訊號交換單元，具有“ 埠’其中之一的連接埠作為與該區域網路對外連接的連接 埠’其^餘的連接琿係分別與該複數個終端裝置各別連接丨 連，單元，用以提供該區域網路對外連接-網路架構；以 及弟-交換器’係與該訊號交換單元所提供的複數個連接 埠中作為與該區域網路對外連接的連接蜂連接，一 ▲ ，換：並與連接單元連接，且該第一交換器係可選；性：： 未與該訊號交換單元之連接埠連接的終端裝置連接，立 中用以偵測該作為與該區域網路對外連接' =終端裝置連接，且依據制結果對應城該作阜二否該 網路對外連接的連接埠的資料傳輸路徑為内部的區 域網路及外部的網路架構之其中一者。 本發明之具有擴充功能之交換裝置的備援系統，係應 用於區域網路内的複數個終端裝置中，且該區域網路 獲數個終端裝置各別具有主要連接埠及備用連傷 19315 200820664 、援系統係包括：第一交換裝置，其係為主用交換裝置，其 〜具有訊號交換單元、連接單元、第一交換器、第二交換器 ▲ 及第三交換器，該訊號交換單元具有複數個連接埠，其中 、 之一的連接埠作為與該區域網路對外連接的連接埠，且其 中之一的連接埠則與第二交換器連接，而其餘的連接埠係 分別與該複數個終端裝置之主要連接埠各別連接；該連接 單元，用以提供該區域網路對外連接一網路架構；而該第 ’ 一交換器與一未與該訊號交換單元之連接埠連接的終端 裝置之主用連接埠連接；第二交換裝置，其係為備用交換 裝置，其具有訊號交換單元、連接單元、第一交換器、第 二交換器及第三交換器，該第二交換裝置的訊號交換單元 具有複數個連接埠，其中之一的連接埠作為與該區域網路 對外連接的連接埠，且其中之一的連接埠則與該第二交換 裝置的第二交換器連接，而其餘的連接埠係分別與該複數 個終端裝置之備用連接埠各別連接；該連接單元，用以提 ⑩供該區域網路對外連接一網路架構；該第一交換器與一未 • 與本端訊號交換單元之連接埠連接的終端裝置之備用連 - 接埠連接；其中，該第一交換裝置之第二交換器係與一未 與本端訊號交換單元所提供的複數個連接埠連接的終端 裝置之主要連接埠連接，而該與第二交換裝置之第二交換 器係與一未與本端訊號交換單元所提供的複數個連接埠 連接的終端裝置之備用連接埠連接；以及該第一交換裝置 之第三交換器係與本端的第一交換器及本端的第二交換 器連接，且該第三交換器並與本端的連接單元連接，其中 9 19315 200820664 ‘：夂t,衣置用以偵測該第-交換器及第二交換器是 ^ 旱運接且依據偵測結果對應切換本 一交換器及本端第二交換器的資料傳輸路徑為内部 -及匕卜部的網路架構之其中一者；而第二交換裝 搞σ。弟—又換為係與本端的第—交換器及本端的第二交 '二，接’且δ亥第二交換器並與本端的連接單元連接，並 β該第二交換裝置用則貞測該第—交換器及第二交換器、 ㈣裝置之連接埠連接，且依據_結果對應切換 立&弟父換☆、及本端第二交換器的資料傳輸路徑為内 邓的區域網路及外部的網路架構之其中一者。 相較於習知技術’本發明之具有擴充功能之交換裝置 備援系統⑨δ襄僅具備丨丨個對内連接的連接埠之習知 交換器亦可供12個終端I置使用1 〇Gb的乙太網路執行傳 輸再者’本發明之具有擴充功能之交換裝置的備援系絶 係透過該網路架構相互連接並搭接至具有主用及備用連 |接埠之終端裝置，能提供該終端裝置當其中之一的具有擴 充功能之交換裝置發生故障時，能適時切換至正常運作的 f有擴充功能之交換裝置，俾減少因具有擴充功能之交換 裝置故障而中斷終端裝置與網路架構之相互連接。另外，' 本發明之具有擴充功能之交換裝置及其備援系統提供多 數個終端裝置對外的網路連接.的應用彈性，不再受限於網 路交換器所提供的連接埠數量，因此，本發明之具有擴充 功月b之父換裝置及其備援系統可增加例如刀鋒飼服界之 產品的價值以及對外網路連接的傳輸能力。 19315 10 200820664 【實施方式】 ▲以下係藉由特定的具體實施例說明本發明之實施方 式’熟悉此技藝之人士可由本說明書所揭示之内容〜: 瞭解本發明之其他優點與功效。本發明亦可藉由其他不同 的具體貫施例加以施行或應用，本說明書中的各項細節亦 可基於不同觀點與應用，在不脖離本發明之精神 種修飾與變更。 晴茶閱第1圖，其係本發明之具有擴充功能之交 置的應用架構示意圖。如圖所示，本發明之具有擴充功能 之交換裝置1係應用於具有終端裝置斯〜312之網路架構 2。於本實施例中，該網路麵2係為乙太網路架構之區 域網路（LAN)’用以提供複數個終端裴置3〇1〜312透過 發明之具有擴充功能之交換裝置！相互連結及/或鱼 之終《置進行流量之傳輸。於本實施财，該流量係指 由伺服益傳运或接收自其他伺服器及/或遠端之終端 >之訊息’其中’該終端裝置3〇卜312係例如刀鋒飼服器。 本發明之具有擴充功能之交換裝置1包括交換器 11、訊號交換單元12以及連接單元16。 該訊號交換單元12係例如10讥乙太網路交換器 (switch或switch hub)的處理晶片，用以供區域網路 内的終端裝置（30卜312)-能相互交換資料，本實施_例之 訊號交換單元係具冑12個連接埠122，該訊號交換單 兀12中的11個連接埠122各別與該終端裝置〜 連接’而剩下的另-個連接埠122則作為與對外連接的連 19315 200820664 -接埠，由於作為對外連接的連接4 122係與該交❹u %及該終端裝置312逵桩，姑可、$ am wo + 連故可選擇性地使12個終端裝置 ‘ 30:〜312透過該訊號交換單元12形成内部網路，抑或透 ‘過該作為對外連接的連接埠122而使12個終端裂置 301〜3U與網路架構2連接而形成可對外連接的網路。 β該訊號交換單元12依據當前網路連接埠122的流 罝，確認連接埠122所連結之終端裝置301〜312的傳輸带 内或對外的資料傳輸。於本實施例中，該訊號: 、早 具有12個連接埠122 ’而其中之-作為對外連 接的連接埠122因與該交換器11連接，而又該交換哭η 分別與終端農置312以及與網路架構2連接的連接單U元 α連接，故該訊號交換單元12透過與網路架構2連接的 交換器11而供12個終端裝置301~312均可使用1〇讥的 乙太網路執行傳輸，故本發明之具有擴充功能之交換裝置 1則能讓僅具備η個對内連接的連接埠122亦可供、1$個 鲁終端裴置301〜312使用l〇Gb的乙太網路執行傳輪二 請參閱第2圖，其係本發明之具有擴充功能之交換裝 置的備援系統的應用架構示意圖。如圖所示，於本實施例 中，本發明之具有擴充功能之交換裝置的備援系統具有第 一，換裝置3及第二交換裝置3,，且該第一交換裝置3 及第二.交換裝置3’係逸過該網路架構2相互連接，本實 施例係提供一種網路交換器備援機制，以防止因單一個只具 有擴充功能之交換裝置發生故障，而影響所有終端裝置對 内或對外網路的資料傳輸處理，本實施例除新增的第二交 19315 12 200820664 換益（331、331’）及第三交換器（332、332,），以及終 ^端裝置301〜312與第一及第二交換裝置（3、3，）間的連 i接關係不同外，其餘構件間之作用均與第1圖相同，故在 - 此將不另贅述。 該終端裝置301〜312均具有一個主要連接埠3〇〇a與 一個相對應之備用連接埠3〇〇b，就本實施例而言，該連 接埠（ 300a、300b)係指l〇Gb的乙太網路連接埠，且該 終端裝置302〜311均分別將其所具有之二個連接埠 籲（ 300a、300b)各別直接連接至第一及第二交換裝置（3、 3’）的連接埠（ 322、322，），而僅終端裝置3〇1及終端裝 置312兩個終端裝置分別將其所具有之二個連接埠、 ( 300a、300b)各別間接連接至第一及第二交換裝置（3、 3，）的連接埠（322 ’ 322，），其中該終端裝置3〇f及级端 裝置312兩個終端裝置分別具有一告知信號線·，用 以告知該第一及第二交換裝置（3、3，）其是否與盆連接， 亦即，當該終端裝置301及終端裝置312兩個終端裝置的 主要連接埠3GGa或備用連接埠3_與第—或第二交 置（3或3，）連接時，該終端裝置3〇1及終 、: 個㈣震置的告知信號線·即傳送一信‘第置一31 或2第兩 —又換装置（3或3’），使該第一或第二交換 / :1:!端:™或终端-裝置312 心又疋弟一或弟二交換裝置（3或3，）為主 備用交換裝置，就本實施例而言，由 =或 及終端震請的主要連接谭300a均與第— 19315 13 200820664 • 3連:及ϋ第—交換震置3為主用交換器，而該終端裳置 及、，、翊襞置312的備用連接埠3〇〇b 置3,連接，故該第二交換裝置3,為備用交換;=換裳 :當:第一::裝置3發生故障時，與備用= =接的弟—讀裝置3，接管該第—交換裝置3的工作， 達到備援的效果。 1 ^生係透過該終端裝置3G1及終端襄置312兩個終 =衣置的告知信號線300c通知可正常運作的第一或 父換裝置（3或3’)執行切換工作’以由其接管發生故障 的父換裝置之工作，以本實施例而言，係由與第一交換器 ( 330、330’）連接的終端裳置312之告知信號線黯^ 換主備用交換裝置（3、3，）工作切換的時機。 再者，由於第一交換器（33〇、33〇，）、第二交換器 (33卜331 )及第三交換器（332、挪，）間連接關係以 及第-及第二交換裝置（3、3，）均為正常的情況下，若 ^終端裝置312未設置時’亦即’該終端裝置312均未與 第及第一父換裝置（3、3，）連接下，該終端裝置斯 可透過本身的連接埠（ 300a或300b)由第二交換器（331、 331 )及第三交換器(-332，332，)—而可直接切換至外部 的網路架構2，並不須由第一交換器（33〇、33〇，）通知 第二父換器（ 332、332’）執行傳輸通道的切換作業，故 使該終端裝置301透過第二交換器（331、331，）及第三 19315 14 200820664 交換器/( 332、332’）而直接使用1〇Gb的乙太網路。此切 換方式係依據與第一交換器（33〇、33〇，）連接的終端裝 置312之告知信號線300c所傳輸的信號以供第二交換^ (33卜331，）及第三交換器（332、咖，）作為執行切: 工作的依據。 、 於本實施例中，該第一及第二交換裝置（3、3，）透 過該網路架構2相互連接並搭接至具有主用及備用連接、 、埠（30〇a、300b)之終端裝置3〇1〜312，能提供該終端裝 ▲置30卜312於第-或第二交換褒置（3或3，）發生故障時， 月b適日守切換至正常運作的交換裝置，俾減少因第一或第二 乂換叙置（3或3’）故障而中斷終端裝置_3〇1〜312與網路 架構2之相互連接。 日再者，於本實施例中，第一及第二交換裝置（3、3，） 提供多數個終端裝置對外的網路連接的應用彈性，尤其是 應用於刀鋒伺服器上，不需配合現有腿乙太網路交換 籲器因其所提供的12個連接埠僅能使具有12片刀鋒伺服單 元（即終為裝置）的刀鋒伺服器中的丨丨片刀鋒伺服單元 使用外部網路，因此，本發明之具有擴充功&之交換裝置 及其備杈系統可增加例如刀鋒伺服器之產品的價值以及 對外網路連接的傳輸能力。 … 上述實施例，為，示性說明本發明之原理及-其功-- 效，而^非用於限制本發明。任何熟習此項技藝之人士均可 延背本發明之精神及範疇下，對上述實施例進行修飾 "" 口此’本發明之權利保護範圍，應如後述之申請 15 19315 200820664 \專利範圍所列。 【圖式簡單說明】 • 第1圖係本發明之具有擴充功能之交換裴置的瘫田 -架構示意圖；以及 應用 第2 圖係本發明之具有擴充功能 系統之應 用架構示意圖。 【主要元件符號說明】 1 f 1 1 具有擴充功能之交換裝置 11 交換器 12, 32, 32, 訊號交換單元 122, 322 連接埠~ 16, 30, 30, 連接單元 2 網路架構 3 第一交換裝置 3， 第二交換裝置 300a 主要連接埠 300b 備用連接埠 300c 告知信號線 301〜312 伺服器 330, 330， 第一交換器 331，331， ―第二支換-器―-…— 332, 332’ 第三交換器 J9315 16Interconnect ion) The second layer (one dozen) operation, which directs traffic based on the address of the second layer; for example, the Ethernet M^C (/edia Access Control Address) address. Some switches also provide other functions, such as virtual local area network and Layer 3 switching, etc. 19315 6 200820664 旎. The parent can set up and listen to the traffic of each Ethernet connection, and know the connection of the connected terminal. Then, the converter will directly transmit the flow to the destination connection itch. The exchange process is executed efficiently without delay, depending on the processing speed of the hardware. The connection provided by the conventional parent converter to the terminal device is the manufacturer's rating. For example, 'manufacturer will produce a parent converter with (1) fixed ,, ^ 璋 璋 ) ) ) ) ) ) ) ) ) ) ) ) ) ) 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以The terminal devices are connected, and the remaining u are only for the connection of 11 terminal devices such as a feeding device. Actually shrinking the volume, mostly with the blade-shaped servo-shaped two-turn π 叩曰 early morning phase can usually accommodate 12 knives two::, if there is a single-β W with 12 blade-oriented servers, there are 12 corresponding The 刀 埠 刀 刀 刀 刀 将 将 将 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换 交换Lianyi, 、,、, 斤: Deducting another scale connected to the Internet, there is a flaw. V: 璋 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有Α文(二)曰7社/, the expansion of the switching device and its backup system, so that the exchange 19315 7 200820664 - the device provides enough connection to provide all the blade in the server chassis - servo and external network The road establishes a network connection relationship. A further object of the present invention is to provide a backup system with an expansion function switching device, to notify the standby switching device that can operate normally to take over the occurrence when the main replacement device fails. The operation of the failed primary switching device. 'To achieve the above and other objects, the present invention provides a switching device with an extended function and a backup system thereof. The switching device with extended functions is applied to a plurality of complex networks in a local area network. In the terminal device, the 誃 has zirconium charging, and the switching device comprises: a signal exchange unit, having a connection port of one of the 埠's as the area The external connection of the network is connected to the plurality of terminal devices, and the unit is used to provide the external network connection of the local area network structure; and the brother-switch And the plurality of ports provided by the signal exchange unit are connected as a connection bee to the external network of the area network, and are connected to the connection unit, and the first switch is optional; : The connection with the signal exchange unit is not connected to the connected terminal device, and the center is used to detect the connection to the local area network of the area' = terminal device, and according to the result of the system, the network should be the second one. The data transmission path of the external connection port is one of the internal area network and the external network structure. The backup system with the extended switching device of the present invention is applied to a plurality of terminal devices in the regional network, and the regional network is obtained by several terminal devices each having a primary connection and a standby serial injury 19315 200820664 The system includes: a first switching device, which is a main switching device, having a signal switching unit, a connecting unit, a first switch, a second switch ▲, and a third switch, the signal switching unit having a plurality of ports, wherein one of the ports is connected to the external network of the area network, and one of the ports is connected to the second switch, and the remaining ports are respectively associated with the plurality of ports The main connection of the terminal device is a separate connection; the connection unit is configured to provide a network structure for the regional network to be externally connected; and the terminal device of the first switch is connected to a connection port not connected to the signal exchange unit The main switch is connected; the second switching device is a standby switching device, which has a signal exchange unit, a connection unit, a first switch, and a second And a third switch, the signal exchange unit of the second switching device has a plurality of ports, one of the ports is connected to the external network of the area network, and one of the ports is connected to The second switch of the second switching device is connected, and the remaining ports are respectively connected to the backup ports of the plurality of terminal devices; the connecting unit is used to provide 10 for the regional network to connect to the network. a second connection between the first switch and a terminal device connected to the local signal exchange unit; wherein the second switch of the first switch is connected to the first switch The plurality of ports connected to the terminal device provided by the local signal exchange unit are connected, and the second switch of the second switching device is connected to a plurality of terminals not provided by the local signal exchange unit. a backup port of the connected terminal device; and a third switch of the first switching device is connected to the first switch of the local end and the second switch of the local end, and the The three switches are connected to the connection unit of the local end, wherein 9 19315 200820664 ': 夂t, the clothes are used to detect that the first switch and the second switch are ^ dry transport and switch according to the detection result. The data transmission path of the switch and the second switch of the local end is one of internal and internal network architectures; and the second switching device performs σ. The younger brother is replaced with the first exchanger of the system and the second exchange of the local end and the second exchange of the local end, and the second exchanger is connected to the connection unit of the local end, and β is used by the second exchange device to detect the The first-switch and the second switch, and (4) the connection of the device are connected, and according to the _ result, the switching data is switched between the parent and the priest, and the data transmission path of the second switch is the inner network of the inner Deng and One of the external network architectures. Compared with the prior art, the switching device with the extended function of the present invention 9δ襄 has only one internal connection port, and the conventional switch can also be used for 12 terminals I to use 1 〇Gb. The Ethernet system performs the transmission and the backup system of the extended switching device of the present invention is connected to each other through the network architecture and is connected to the terminal device having the primary and backup connection ports. When one of the switching devices with the expansion function fails, the terminal device can switch to the functioning switching device with the expansion function in time, and reduce the interruption of the terminal device and the network architecture due to the failure of the switching device with the extended function. They are connected to each other. In addition, the switching device with the extended function of the present invention and the backup system thereof provide the application flexibility of the external network connection of the plurality of terminal devices, and are no longer limited by the number of ports provided by the network switch. The parent changing device with the expansion function b of the present invention and its backup system can increase the value of products such as the blade feeding industry and the transmission capacity of the external network connection. [Embodiment] The following describes the embodiments of the present invention by way of specific embodiments. Those skilled in the art can disclose the contents of the present disclosure. The present invention may be embodied or applied in various other specific embodiments. The details of the present invention can be modified and changed without departing from the spirit and scope of the invention. The first reading of the present invention is a schematic diagram of an application architecture of the present invention having an extended function. As shown, the switching device 1 of the present invention having an extended function is applied to a network architecture 2 having terminal devices s312. In this embodiment, the network plane 2 is a local area network (LAN) of the Ethernet architecture to provide a plurality of terminal devices 3〇1 to 312 through the inventive switching device with extended functions! Interconnection and/or end of the fish "transmission of traffic. In this implementation, the traffic refers to the message transmitted by the server or received from other servers and/or remote terminals > wherein the terminal device 3 is 312, such as a knife feeder. The switching device 1 with the expanded function of the present invention comprises a switch 11, a signal exchange unit 12 and a connection unit 16. The signal exchange unit 12 is, for example, a processing chip of a 10 讥 Ethernet switch (switch or switch hub) for the terminal devices (30 312) in the local area network to exchange data with each other. The signal exchange unit has 12 ports 122, and 11 ports 122 of the signal exchange unit 12 are connected to the terminal device and the remaining ports 122 are connected to the outside. The connection of 19315 200820664 - the connection, due to the connection of the external connection 4 122 system with the exchange u % and the terminal device 312 pile, the aunt, $ am wo + can even make 12 terminal devices ' 30 : 312 through the signal exchange unit 12 to form an internal network, or through the connection 埠 122 as an external connection, 12 terminals 301~3U are connected to the network architecture 2 to form an externally connectable network . The signal switching unit 12 confirms the data transmission in or outside the transmission band of the terminal devices 301 to 312 connected to the port 122 based on the current network port 122. In this embodiment, the signal: has 12 ports 122', and the connection port 122 as an external connection is connected to the switch 11, and the exchange cry η is respectively associated with the terminal farm 312 and The connection unit U is connected to the network architecture 2, so that the signal exchange unit 12 can use one of the 12 terminal devices 301-312 through the switch 11 connected to the network architecture 2. The circuit performs transmission, so the switching device 1 with the extended function of the present invention can also provide the connection port 122 having only n internal connections, and the 1/4 terminal devices 301 to 312 using the Ethernet device of l〇Gb. Network Execution 2 Please refer to FIG. 2, which is a schematic diagram of an application architecture of a backup system with an extended switching device of the present invention. As shown in the figure, in the present embodiment, the backup system of the switching device with the extended function of the present invention has a first, changing device 3 and a second switching device 3, and the first switching device 3 and the second. The switching device 3 ′ is disconnected from the network architecture 2, and the embodiment provides a network switch backup mechanism to prevent all terminal device pairs from being affected by a single switching device having only an extended function. The data transmission processing of the internal or external network, in addition to the newly added second exchange 19315 12 200820664 exchange benefits (331, 331 ') and the third switch (332, 332,), and the terminal device 301 ~ The function of 312 is different from that of the first and second switching devices (3, 3,), and the functions of the other components are the same as those of the first drawing, and therefore will not be further described. The terminal devices 301 312 312 each have a primary connection 埠 3 〇〇 a and a corresponding backup connection 埠 3 〇〇 b. For the purposes of this embodiment, the connection 埠 ( 300 a , 300 b ) refers to l 〇 Gb The Ethernet interface is connected, and the terminal devices 302-311 respectively respectively connect the two connection calls (300a, 300b) respectively to the first and second switching devices (3, 3'). The ports (322, 322,) are connected, and only the terminal devices 3〇1 and the terminal device 312 respectively connect the two ports (, (300a, 300b), which are respectively connected, to the first and second terminals, respectively. a connection port (322' 322,) of the switching device (3, 3), wherein the terminal device 3〇f and the level terminal device 312 respectively have a notification signal line for notifying the first and the second Whether the two switching devices (3, 3,) are connected to the basin, that is, when the terminal device 301 and the terminal device 312 are connected to each other, the primary connection 埠3GGa or the backup connection 埠3_ and the first or second intersection (3 or 3,) When the connection is made, the terminal device 3〇1 and the final: (4) shock notification letter The line, that is, the transmission of a letter 'the first one 31 or the second two - and the replacement device (3 or 3'), so that the first or second exchange /: 1:! end: TM or terminal - device 312 heart again The younger brother or the second exchange device (3 or 3) is the primary standby switching device. For the present embodiment, the primary connection Tan 300a, which is triggered by the = or terminal, is connected with the first 19315 13 200820664 • 3: And the first exchange switch 3 is the main switch, and the terminal is disposed, and the standby connection 翊襞3〇〇b of the device 312 is set to 3, and the second switching device 3 is reserved. Exchange; = change skirt: When: first:: When the device 3 fails, the brother-reading device 3 connected with the standby == takes over the work of the first-switching device 3 to achieve the effect of backup. 1 ^ The system informs the first or the parent device (3 or 3') that the normal operation is performed by the notification signal line 300c of the terminal device 3G1 and the terminal device 312 to perform the switching operation to be taken over by the terminal device 3G1 and the terminal device 312 The operation of the failed parent switching device, in the present embodiment, is performed by the terminal signal 312 of the terminal connected to the first switch (330, 330') to change the primary standby switching device (3, 3) ,) The timing of work switching. Furthermore, the first switch (33〇, 33〇), the second switch (33b 331), and the third switch (332, move,) connection relationship and the first and second switching devices (3) And 3,) are all normal, if the terminal device 312 is not set, that is, the terminal device 312 is not connected to the first and second parent changing devices (3, 3,), the terminal device It can be directly switched to the external network architecture 2 by the second switch (331, 331) and the third switch (-332, 332) through its own port (300a or 300b), without The first switch (33〇, 33〇) notifies the second parent converter (332, 332') to perform the switching operation of the transmission channel, so that the terminal device 301 transmits the second switch (331, 331,) and the Three 19315 14 200820664 switch / (332, 332') and directly use 1 〇 Gb Ethernet. The switching mode is based on the signal transmitted by the notification signal line 300c of the terminal device 312 connected to the first switch (33A, 33A) for the second exchange (33, 331,) and the third switch ( 332, coffee,) as the basis for execution cut: work. In this embodiment, the first and second switching devices (3, 3) are connected to each other through the network architecture 2 and overlapped to have primary and backup connections, and (埠, 30〇a, 300b). The terminal devices 3〇1 to 312 can provide the switching device that the terminal device is switched to the normal operation when the first or second switching device (3 or 3) fails.俾 Reducing the interconnection of the terminal devices _3〇1 to 312 and the network architecture 2 due to the first or second 乂 (3 or 3') failure. Furthermore, in this embodiment, the first and second switching devices (3, 3) provide application flexibility of the external network connection of a plurality of terminal devices, especially applied to the blade server, and do not need to cooperate with the existing The leg Ethernet exchange device can only use the external network by the blade blade servo unit in the blade server with 12 blade servo units (ie, the device) because of the 12 ports provided. The switching device with the extended power & and its backup system of the present invention can increase the value of the product such as the blade server and the transmission capability of the external network connection. The above-described embodiments are intended to be illustrative of the principles of the invention and the advantages thereof, and are not intended to limit the invention. Any person skilled in the art can use the spirit and scope of the present invention to modify the above embodiments. The scope of protection of the present invention should be as follows. Application 15 19315 200820664 \ Patent scope Listed. BRIEF DESCRIPTION OF THE DRAWINGS: Fig. 1 is a schematic diagram of a field-architecture of an expanded switching device of the present invention; and a second schematic diagram showing an application architecture of an expanded function system of the present invention. [Main component symbol description] 1 f 1 1 Switching device with expansion function 11 Switch 12, 32, 32, Signal switching unit 122, 322 Connection 埠~ 16, 30, 30, Connection unit 2 Network architecture 3 First exchange The device 3, the second switching device 300a is mainly connected to the 埠300b, the backup port 300c, and the signal lines 301 to 312, the servers 330, 330, the first switches 331, 331, the second switch-----332, 332 ' Third exchanger J9315 16