TWI718623B - Network transmission detection system - Google Patents
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Abstract
本發明係一種網路傳輸檢測系統,一待測網路裝置設有一第一待測埠與一第二待測埠,一測試裝置能使該等待測埠相互傳輸封包,本發明之特徵在於,該第一待測埠具有一第一VLAN ID、一第二VLAN ID與一第一port-based VLAN ID,該第二待測埠具有該第一VLAN ID、該第二VLAN ID與一第二port-based VLAN ID,且第一port-based VLAN ID相同於第一VLAN ID,第二port-based VLAN ID相同於第二VLAN ID,該待測網路裝置內還儲存有一L2表格,且該L2表格會記載一第一條目與一第二條目,該第一條目包括一第一地址對應於第一待測埠的第一VLAN ID,該第二條目包括一第二地址對應於該第二待測埠的第二VLAN ID,當該等待測埠分別發出封包後,該待測網路裝置會根據該L2表格的對應條目,將各個封包經由自身內部傳回至對應的待測埠。 The present invention is a network transmission detection system. A network device to be tested is provided with a first port to be tested and a second port to be tested, and a test device enables the ports to be tested to mutually transmit packets. The feature of the present invention is that: The first port under test has a first VLAN ID, a second VLAN ID, and a first port-based VLAN ID, and the second port under test has the first VLAN ID, the second VLAN ID, and a second port-based VLAN ID, and the first port-based VLAN ID is the same as the first VLAN ID, and the second port-based VLAN ID is the same as the second VLAN ID. There is also an L2 table stored in the network device under test, and the The L2 table will record a first entry and a second entry, the first entry includes a first address corresponding to the first VLAN ID of the first port under test, and the second entry includes a second address corresponding to In the second VLAN ID of the second port under test, when the waiting port sends out packets, the network device under test will return each packet to the corresponding waiting port according to the corresponding entry in the L2 table. Test port.
Description
本發明係關於網路傳輸檢測系統,尤指一種設有L2表格,以能將小封包作為測試用的封包,且同樣能達成線路滿載的網路傳輸檢測系統。 The present invention relates to a network transmission detection system, in particular to a network transmission detection system with an L2 form, which can use small packets as test packets, and can also achieve full line load.
一般來說,在網路通訊裝置(如:路由器、網路交換器、網路伺服器...等)推出於市場前,業者必須先對該等網路通訊裝置進行功能上之測試,以確保該等網路通訊裝置具有良好之傳輸效能,惟,業者發現該等網路通訊裝置在線路未達滿載的狀態下,即使原先通過測試,在使用者對各該網路通訊裝置進行自我測試時,卻可能會發現未達測試標準之問題,據此,發明人認為,令該等網路通訊裝置在達到線路滿載之狀態後,始進行網路傳輸速率之測試,必定會使測試結果更佳精確。 Generally speaking, before network communication devices (such as routers, network switches, network servers... etc.) are launched on the market, the industry must first perform functional tests on these network communication devices to Ensure that these network communication devices have good transmission performance. However, if the industry finds that these network communication devices have passed the test before the line is not fully loaded, the user will conduct a self-test on each network communication device. However, the problem of failure to meet the test standards may be found. Based on this, the inventor believes that if the network communication devices start to test the network transmission rate after the line is fully loaded, the test results will definitely be improved. Good precision.
承上,目前網路傳輸速率的測試方式大致能分為回送測試(Loopback Test)、飽和測試(Saturation Test)、蛇形測試(Snake Test)與外部測試(External Test),茲簡單說明如下:(1)回送測試(Loopback Test):其是使一網路通訊裝置能發送特定格式的封包給自身,以對封包內容進行驗證,但是,由於網路通訊裝置的中央處理單元(CPU),其一方面需產生封包,另一方面則必須對該封包進行 驗證,故會導致封包的傳輸速率較慢;(2)飽和測試(Saturation Test):其是把網路通訊裝置的所有通訊埠(port)都處於同一個虛擬區域網路(Virtual Local Area Network,簡稱VLAN),之後,該網路通訊裝置會以廣播方式(Broadcast),對自身的通訊埠發送不同大小的封包,直到該網路通訊裝置達到線路滿載後,才對該等封包進行首次檢驗,並在等待一預定檢測期間後,再度檢查在該預定檢測期間內是否收到錯誤的封包,如此,該網路通訊裝置較能檢測出高速傳輸下始會發生的錯誤及問題,但是,由於網路系統中流竄著各種大小不同的封包,反而更不易精確地檢驗出正確的網路傳輸速率;(3)蛇形測試(Snake Test):其是將網路通訊裝置的所有通訊埠進行串接,使得封包能由第一個通訊埠傳送到最後一個通訊埠,但是,由於網路通訊裝置的中央處理單元(CPU)同樣需一方面產生封包,另一方面對該封包進行驗證,因此,往往無法產生出足夠的封包數量來達到線路滿載;(4)外部測試(External Test):其是在相同於前述蛇形測試之網路環境下,透過外部的測試機器來收送封包,此種作法,雖然能夠令網路通訊裝置達到線路滿載,且能驗證到虛擬區域網路的功能,但是,由於外部的測試機器之造價成本很高,且有後續定期維修及保養的花費,故並不符合實際效益。 In conclusion, the current testing methods of network transmission rate can be roughly divided into Loopback Test, Saturation Test, Snake Test and External Test. Here is a brief description:( 1) Loopback Test: It enables a network communication device to send packets of a specific format to itself to verify the content of the packet. However, due to the central processing unit (CPU) of the network communication device, one of the On the one hand, a packet must be generated, and on the other hand, the packet must be Verification, it will cause the packet transmission rate to be slow; (2) Saturation Test: It puts all the ports of the network communication device in the same Virtual Local Area Network (Virtual Local Area Network, After that, the network communication device will send packets of different sizes to its own communication port in a broadcast mode, and the first inspection of these packets will not be carried out until the network communication device reaches full capacity. And after waiting for a predetermined detection period, check again whether the wrong packet is received during the predetermined detection period. In this way, the network communication device can better detect errors and problems that occur under high-speed transmission. However, due to the network There are packets of various sizes in the system, which makes it more difficult to accurately check the correct network transmission rate; (3) Snake Test: It is to connect all the communication ports of the network communication device in series. , So that the packet can be sent from the first communication port to the last communication port. However, because the central processing unit (CPU) of the network communication device also needs to generate the packet on the one hand, and verify the packet on the other hand, it is often Unable to generate enough packets to reach full line load; (4) External Test: It uses an external test machine to send and receive packets under the same network environment as the aforementioned snake test. , Although it can make the network communication device reach the full line and verify the function of the virtual local area network, but because the cost of the external test machine is very high, and there are follow-up regular repairs and maintenance costs, it does not meet Actual benefits.
有鑑於此,申請人曾利用一種新的網速測試方式,該網速測試方式是將兩個通訊埠(port)設定為同一個VLAN,並透過VLAN的機制,令固定長度的封包以廣播(Broadcast)方式在網路通訊裝置中進行送收與轉發,直到該網路通訊裝置達到滿載為止,之後,才利用收送封包的數量和 封包的固定長度來計算出整體的傳輸速度,以能一併解決前述習知測試方式的缺點。惟,後續實際使用後,申請人發現,由於新型SoC(System on a Chip)內部的記憶體管理單元(Memory Management Unit,簡稱MMU),其在傳送封包時,有限的資源分配方式會造成未知封包(Unknown Unicast)、多播(Multicast)與廣播(Broadcast)上有使用率的限制,此種情況,將會導致封包在小於特定長度時,即,當網路通訊裝置利用小封包進行轉發後,申請人利用前述的網速測試方式後,會造成網路通訊裝置的網路傳輸速度未達標準,使得網路通訊裝置無法利用小封包達成滿載傳輸以進行網速測試。 In view of this, the applicant has used a new network speed test method. The network speed test method is to set two ports to the same VLAN and use the VLAN mechanism to broadcast fixed-length packets ( Broadcast) method to send, receive and forward in the network communication device until the network communication device is fully loaded, and then use the number of packets sent and received The fixed length of the packet is used to calculate the overall transmission speed, so as to solve the shortcomings of the aforementioned conventional test methods. However, after the subsequent actual use, the applicant found that due to the memory management unit (MMU) inside the new SoC (System on a Chip), the limited resource allocation method will cause unknown packets when transmitting packets. (Unknown Unicast), Multicast (Multicast) and Broadcast (Broadcast) have usage rate restrictions. In this case, the packet will be less than a certain length, that is, when the network communication device uses small packets to forward, After the applicant uses the aforementioned network speed test method, the network transmission speed of the network communication device will not reach the standard, so that the network communication device cannot use small packets to achieve full transmission for the network speed test.
綜上所述,如何有效解決前述問題,使得網路通訊裝置能夠以小封包的方式,順利地完成網速測試方式,即成為本發明在此亟欲解決的重要問題。 In summary, how to effectively solve the aforementioned problems so that the network communication device can successfully complete the network speed test method in the form of small packets has become an important problem to be solved by the present invention.
有鑑於習知測試方式應用於新型SoC時,無法利用小封包達成滿載傳輸的效果,因此,發明人乃憑藉著多年來的實務經驗,並經過多次的實驗及測試後,終於設計出本發明之一種網路傳輸檢測系統,期能藉由本發明,有效改善前述的諸多缺失。 In view of the fact that when the conventional test method is applied to a new SoC, it is impossible to use small packets to achieve the effect of full load transmission. Therefore, the inventor has finally designed the present invention based on years of practical experience and after many experiments and tests. A network transmission detection system is expected to be able to effectively improve many of the aforementioned shortcomings by means of the present invention.
本發明之一目的,係提供一種網路傳輸檢測系統,包括一待測網路裝置與一測試裝置,其中,該待測網路裝置至少設有一待測埠組,該待測埠組包括一第一待測埠與一第二待測埠,且該第一待測埠與第二待測埠能透過一回接治具相互連接,該測試裝置則與該待測網路裝置相連接,其能使該等待測埠相互傳輸封包,本發明之特徵在於,該第一待測埠具有一第一虛擬區域網路辨識碼、一第二虛擬區域網路辨識碼與一第一埠 口基礎虛擬區域網路辨識碼,且該第一埠口基礎虛擬區域網路辨識碼相同於該第二虛擬區域網路辨識碼,該第二待測埠則具有該第一虛擬區域網路辨識碼、該第二虛擬區域網路辨識碼與一第二埠口基礎虛擬區域網路辨識碼,且該第二埠口基礎虛擬區域網路辨識碼相同於該第一虛擬區域網路辨識碼,該待測網路裝置內儲存有一L2表格,其中,該L2表格會記載一第一條目與一第二條目,該第一條目至少包括一第一地址對應於該第一待測埠之該第一虛擬區域網路辨識碼的內容,該第二條目至少包括一第二地址對應於該第二待測埠之該第二虛擬區域網路辨識碼的內容,在該第一待測埠發出封包至該第二待測埠,且封包的目標位址為該第一地址的狀態下,該待測網路裝置會根據該L2表格的該第一條目,將前述封包經由該待測網路裝置的內部傳回至該第一待測埠;在該第二待測埠發出封包至該第一待測埠,且封包的目標位址為該第二地址的狀態下,該待測網路裝置會根據該L2表格的該第二條目,將前述封包經由該待測網路裝置的內部傳回至該第二待測埠,如此,由於該網路傳輸檢測系統內所傳輸的封包都為已知目標位置,並採用單播(Unicast)技術,因此,儘管待測網路裝置是使用小封包,同樣能達成線路滿載的效果。 An object of the present invention is to provide a network transmission detection system, including a network device to be tested and a test device, wherein the network device to be tested is provided with at least one port group to be tested, and the port group to be tested includes a A first port to be tested and a second port to be tested, and the first port to be tested and the second port to be tested can be connected to each other through a loopback fixture, and the test device is connected to the network device under test, It enables the port to be tested to transmit packets to each other. The feature of the present invention is that the first port to be tested has a first virtual area network identification code, a second virtual area network identification code and a first port Port basic virtual area network identification code, and the first port basic virtual area network identification code is the same as the second virtual area network identification code, and the second port under test has the first virtual area network identification code Code, the second virtual local area network identification code, and a second port basic virtual local area network identification code, and the second port basic virtual local area network identification code is the same as the first virtual local area network identification code, The network device under test stores an L2 table, where the L2 table records a first entry and a second entry, and the first entry includes at least a first address corresponding to the first port under test The content of the first virtual area network identification code, the second entry includes at least a second address corresponding to the content of the second virtual area network identification code of the second port to be tested, in the first waiting port When the test port sends a packet to the second port under test, and the target address of the packet is the first address, the network device under test will pass the packet through the first entry in the L2 table. The internal part of the network device under test is sent back to the first port under test; when the second port under test sends a packet to the first port under test, and the target address of the packet is the second address, the According to the second entry of the L2 table, the network device under test will return the aforementioned packet to the second port under test through the inside of the network device under test. The transmitted packets are all known target locations, and unicast technology is used. Therefore, although the network device under test uses small packets, the effect of full line load can also be achieved.
本發明之另一目的,係提供一種網路傳輸檢測系統,包括一待測網路裝置與一測試裝置,其中,該待測網路裝置至少設有一待測埠組,該待測埠組包括一第一待測埠與一第二待測埠,且該第一待測埠能透過一回接治具連接至自身,該第二待測埠則能透過另一回接治具連接至自身,該測試裝置則與該待測網路裝置相連接,並能使各該待測埠發出封包,以傳回給自身,本發明之特徵在於,該第一待測埠具有一第一虛擬區域網路 辨識碼、一第二虛擬區域網路辨識碼與一第一埠口基礎虛擬區域網路辨識碼,且該第一埠口基礎虛擬區域網路辨識碼相同於該第二虛擬區域網路辨識碼,該第二待測埠則具有該第一虛擬區域網路辨識碼、該第二虛擬區域網路辨識碼與一第二埠口基礎虛擬區域網路辨識碼,且該第二埠口基礎虛擬區域網路辨識碼相同於該第一虛擬區域網路辨識碼,該待測網路裝置內儲存有一L2表格,其中,該L2表格會記載一第一條目與一第二條目,該第一條目至少包括一第一地址對應於該第二待測埠之該第二虛擬區域網路辨識碼的內容,該第二條目至少包括該第一地址對應於該第一待測埠之該第一虛擬區域網路辨識碼的內容,在該第一待測埠發出封包回送給自身,且封包的目標位址為該第一地址的狀態下,該待測網路裝置會根據該L2表格的該第一條目,將前述封包經由該待測網路裝置的內部傳送至該第二待測埠,該第二待測埠接收到前述封包後,會再度發出前述封包回送給自身,該待測網路裝置會根據該L2表格的該第二條目,將前述封包經由該待測網路裝置的內部傳送至該第一待測埠,如此,該網路傳輸檢測系統同樣能採用小封包作為測試用的封包,並能達成線路滿載的效果。 Another object of the present invention is to provide a network transmission detection system, including a network device to be tested and a test device, wherein the network device to be tested is provided with at least one port group to be tested, and the port group to be tested includes A first port to be tested and a second port to be tested, and the first port to be tested can be connected to itself through a loopback fixture, and the second port to be tested can be connected to itself through another loopback fixture , The test device is connected to the network device under test, and enables each port to be tested to send a packet to be sent back to itself. The feature of the present invention is that the first port to be tested has a first virtual area network Identification code, a second virtual local area network identification code and a first port basic virtual local area network identification code, and the first port basic virtual local area network identification code is the same as the second virtual local area network identification code , The second port to be tested has the first virtual local area network identification code, the second virtual local area network identification code, and a second port basic virtual local area network identification code, and the second port basic virtual The local area network identification code is the same as the first virtual local area network identification code. An L2 table is stored in the network device under test. The L2 table records a first entry and a second entry. An entry includes at least the content of a first address corresponding to the second virtual area network identification code of the second port under test, and the second entry includes at least the content of the first address corresponding to the first port under test The content of the first virtual local area network identification code, when the first port under test sends a packet back to itself, and the destination address of the packet is the first address, the network device under test will follow the L2 The first entry of the table sends the aforementioned packet to the second port under test through the inside of the network device under test. After receiving the aforementioned packet, the second port under test will send the aforementioned packet back to itself again. The network device under test will send the aforementioned packet to the first port under test through the inside of the network device under test according to the second entry of the L2 table. In this way, the network transmission detection system can also use Small packets are used as test packets and can achieve the effect of full line load.
為便 貴審查委員能對本發明目的、技術特徵及其功效,做更進一步之認識與瞭解,茲舉實施例配合圖式,詳細說明如下: In order to facilitate your reviewer to have a further understanding and understanding of the purpose, technical features and effects of the present invention, the examples and diagrams are described in detail as follows:
〔習知〕 [Learning]
無 no
〔本發明〕 〔this invention〕
1‧‧‧網路傳輸檢測系統 1‧‧‧Network transmission detection system
11‧‧‧待測網路裝置 11‧‧‧Network device under test
11A‧‧‧待測埠組 11A‧‧‧Port group to be tested
110‧‧‧L2表格 110‧‧‧L2 Form
111‧‧‧第一待測埠 111‧‧‧The first port to be tested
112‧‧‧第二待測埠 112‧‧‧Second port to be tested
13‧‧‧測試裝置 13‧‧‧Test device
15、25、26‧‧‧回接治具 15, 25, 26‧‧‧Return fixture
第1圖係本發明之網路傳輸檢測系統的示意圖;第2圖係本發明之第一實施例的待測網路裝置之示意圖;第3圖係本發明之第一實施例的傳輸路徑示意圖; 第4圖係本發明之第二實施例的待測網路裝置之示意圖;及第5圖係本發明之第二實施例的傳輸路徑示意圖。 Figure 1 is a schematic diagram of the network transmission detection system of the present invention; Figure 2 is a schematic diagram of the network device under test of the first embodiment of the present invention; Figure 3 is a schematic diagram of the transmission path of the first embodiment of the present invention ; Fig. 4 is a schematic diagram of the network device under test according to the second embodiment of the present invention; and Fig. 5 is a schematic diagram of the transmission path of the second embodiment of the present invention.
本發明係一種網路傳輸檢測系統,以能適用於以小封包進行網路傳輸速率的測試方式,請參閱第1及2圖所示,在第一實施例中,該網路傳輸檢測系統1包括至少一待測網路裝置11(如:路由器、網路交換器、網路伺服器...等)與一測試裝置13,其中,該待測網路裝置11至少設有一待測埠組11A,該待測埠組11A包括一第一待測埠111與一第二待測埠112,且該第一待測埠111與第二待測埠112兩者能透過一回接治具15(loopback cable)相互連接,使得該第一待測埠111與第二待測埠112能相互傳輸封包。
The present invention is a network transmission detection system, which is suitable for testing the network transmission rate with small packets. Please refer to Figures 1 and 2. In the first embodiment, the network
承上,復請參閱第1及2圖所示,在該第一實施例中,該測試裝置13能為電腦或其它電子裝置,其能與該待測網路裝置11相電氣連接,並對該測試裝置13發出控制訊息,令該第一待測埠111能發出封包,並透過該回接治具15傳送至該第二待測埠112,以及令該第二待測埠112發出封包,並透過該回接治具15傳送至該第一待測埠111,其中,第一待測埠111與第二待測埠112所發出的封包能夠為相同的固定長度,且該封包的長度能等於或小於295位元組,但不以此為限,因為,本發明之網路傳輸檢測系統1雖然能夠適用於小封包,但同樣能夠適用於大封包(即,超過295位元組),使得該網路傳輸檢測系統1具有更佳的適用性,而能對更多的網路通訊裝置進行測試。
Continuing, please refer to Figures 1 and 2. In the first embodiment, the
請參閱第1至3圖所示,在該第一實施例中,該第一待測埠111會屬於兩個虛擬區域網路(Virtual LocalArea Network,簡稱VLAN)和一個埠
口基礎虛擬區域網路(port-based VLAN),其中,該第一待測埠111具有一第一虛擬區域網路辨識碼(VLAN ID)、一第二虛擬區域網路辨識碼與一第一埠口基礎虛擬區域網路辨識碼(port-based VLAN ID),且該第一埠口基礎虛擬區域網路辨識碼相同於該第二虛擬區域網路辨識碼,以虛擬區域網路為M1、M2為例,第一虛擬區域網路辨識碼能對應於M1,第二虛擬區域網路辨識碼能對應於M2,第一埠口基礎虛擬區域網路辨識碼能對應於M2;又,該第二待測埠112亦會屬於兩個虛擬區域網路和一個埠口基礎虛擬區域網路,其中,該第二待測埠112具有該第一虛擬區域網路辨識碼、該第二虛擬區域網路辨識碼與一第二埠口基礎虛擬區域網路辨識碼,且該第二埠口基礎虛擬區域網路辨識碼會相同於第一虛擬區域網路辨識碼,因此,該第二埠口基礎虛擬區域網路辨識碼能對應於M1。
Please refer to Figures 1 to 3. In the first embodiment, the
另,復請參閱第1至3圖所示,在該第一實施例中,該待測網路裝置11內儲存有一L2表格110(L2 Table),其中,該L2表格110會記載一第一條目(entry)與一第二條目,該第一條目至少包括一第一地址(如:Y地址)對應於該第一待測埠111的第一虛擬區域網路辨識碼(如:M1)的內容,例如,該第一條目能記載為「Y@111,M1」;該第二條目則至少包括一第二地址(如:X地址)對應於該第二待測埠112的第二虛擬區域網路辨識碼(如:M2)的內容,例如,該第二條目能記載為「X@112,M2」;又,當該第一待測埠111產生目標位置為第一地址(如:Y地址)的封包,並傳輸至第二待測埠112後(如第3圖之點狀箭頭),由於第二待測埠112的第二埠口基礎虛擬區域網路辨識碼,其與第一待測埠111的第一虛擬區域網路辨識碼都對應於M1,因此,封包的轉發目標即為第一待測埠111的第一虛擬區域網路辨識碼(如:
M1),故,該第二待測埠112收到前述封包後,該待測網路裝置11會先從L2表格110搜索轉發目標,其搜索條件為"目標位置是第一地址(如:Y地址)"與"第一待測埠111的第一虛擬區域網路辨識碼(如:M1)",之後,該待測網路裝置11便會根據該L2表格110的第一條目(如:Y@111,M1),將前述封包經由該待測網路裝置11的內部傳回至該第一待測埠111(如第3圖之虛線箭頭)。同理,當該第二待測埠112發出封包至該第一待測埠111,且封包的目標位址為第二地址(如:X地址)時,該待測網路裝置11即會根據L2表格110的第二條目(如:X@112,M2),將前述封包經由該待測網路裝置11的內部傳回至該第二待測埠112。
In addition, please refer to FIGS. 1 to 3 again. In the first embodiment, the network device under
綜上所述可知,復請參閱第1至3圖所示,由於該網路傳輸檢測系統1中,該待測埠組11A所產生的封包都是屬於已知目標位置的封包,因此,在經過預定時間的轉發封包後,從第一待測埠111傳送至第二待測埠112的封包數量便足以讓線路達到滿載,同理,由第二待測埠112傳送至第一待測埠111的封包數量亦足以讓線路達到滿載。如此,由於本發明之網路傳輸檢測系統1是利用單播(Unicast)來傳送封包,且對L2表格110的內容進行特別的設應,避免有未知封包在網路傳輸檢測系統1裡傳送,故能適用於新型SoC上,並能滿足以小封包作為測試用之封包的目的。
In summary, please refer to Figures 1 to 3. In the network
再者,在第一實施例中,第一待測埠111與第二待測埠112是採用一個回接治具15進行連接,但不以此為限,在本發明之第二實施例中,為方便說明,後續僅就改變的元件進行重新標號,其它元件則仍維持原標號,合先陳明。請參閱第1及4圖所示,第一待測埠111能透過一回接治具25連接至自身,第二待測埠112則能透過另一回接治具26連接至自身,
又,該L2表格110的記載內容亦會隨之調整,其中,第一條目至少包括一第一地址(如:Y地址)對應於該第二待測埠112的第二虛擬區域網路辨識碼(如:M2)的內容,例如,該第一條目能記載為「Y@112,M2」;該第二條目至少包括該第一地址(如:Y地址)對應於該第一待測埠111的第一虛擬區域網路辨識碼(如:M1)的內容,例如,該第二條目能記載為「Y@111,M1」。
Furthermore, in the first embodiment, the first port to be tested 111 and the second port to be tested 112 are connected by a tie-
復請參閱第4及5圖所示,當該第一待測埠111產生目標位置為第一地址(如:Y地址)的封包,並經由該回接治具25傳回至自身後(如第5圖之點狀箭頭),由於該第一待測埠111的第一埠口基礎虛擬區域網路辨識碼,其與第二待測埠112的第二虛擬區域網路辨識碼都對應於M2,因此,封包的轉發目標即為第二待測埠112的第二虛擬區域網路辨識碼(如:M2),故,該第一待測埠111收到前述封包後,該待測網路裝置11會先從L2表格110搜索轉發目標,其搜索條件為"目標位置是第一地址(如:Y地址)"與"第二待測埠112的第二虛擬區域網路辨識碼(如:M2)",之後,該待測網路裝置11便會根據該L2表格110的第一條目(如:Y@112,M2),將前述封包經由該待測網路裝置11的內部傳送至該第二待測埠112(如第5圖之虛線箭頭)。又,當該第二待測埠112收到前述封包後,其會再度發出封包,並經由另一回接治具26傳回至自身後,由於第二待測埠112的第二埠口基礎虛擬區域網路辨識碼,其與第一待測埠111的第一虛擬區域網路辨識碼都對應於M1,因此,封包的轉發目標即為第一待測埠111的第一虛擬區域網路辨識碼(如:M1),故,該待測網路裝置11會先從L2表格110搜索轉發目標,其搜索條件為"目標位置是第一地址(如:Y地址)"與"第一待測埠111的第一虛擬區域網路辨識碼(如:M1)",令該待測網路裝置11能根據該L2表格110的第二條目,將前
述封包經由該待測網路裝置11的內部傳送至該第一待測埠111,如此,在經過預定期間的轉發封包後,即可達成線路滿載的效果。
Please refer to Figures 4 and 5 again. When the
在此特別一提者,透過第二實施例的方式可知,當第一地址等於第二地址的情況下,無論業者是使用第一實施例的回接治具15方式(即,兩個待測埠相互對接方式),或是第二實施例的回接治具25、26方式(即,兩個待測埠單獨回接方式),都能夠採用同一種L2表格110的記載內容,以供該待測網路裝置11能根據需求而搜索對應的條目,此舉,亦能有效提高本發明之網路傳輸檢測系統1的便利性,降低工作人員錯誤設定目標位置、待測埠與區域網路辨識碼的機會。
In particular, through the method of the second embodiment, when the first address is equal to the second address, no matter if the operator uses the
按,以上所述,僅係本發明之較佳實施例,惟,本發明所主張之權利範圍,並不侷限於此,按凡熟悉該項技藝人士,依據本發明所揭露之技術內容,可輕易思及之等效變化,均應屬不脫離本發明之保護範疇。 According to, the above are only the preferred embodiments of the present invention. However, the scope of rights claimed by the present invention is not limited to this. Anyone familiar with the art can use the technical content disclosed in the present invention. The equivalent changes that are easily considered should all fall within the scope of protection of the present invention.
1‧‧‧網路傳輸檢測系統 1‧‧‧Network transmission detection system
11‧‧‧待測網路裝置 11‧‧‧Network device under test
110‧‧‧L2表格 110‧‧‧L2 Form
13‧‧‧測試裝置 13‧‧‧Test device
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US6680945B1 (en) * | 1999-05-24 | 2004-01-20 | Advanced Micro Devices, Inc. | Method and apparatus for support of tagging and untagging per VLAN per port |
US6639901B1 (en) * | 2000-01-24 | 2003-10-28 | 3Com Corporation | Apparatus for and method for supporting 802.1Q VLAN tagging with independent VLAN learning in LAN emulation networks |
CN104394103A (en) * | 2014-12-16 | 2015-03-04 | 上海斐讯数据通信技术有限公司 | Synchronization method, system and switch for static MAC (media access control) address |
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