TWM574793U - Network device capable of detecting state of external device - Google Patents
Network device capable of detecting state of external device Download PDFInfo
- Publication number
- TWM574793U TWM574793U TW107214332U TW107214332U TWM574793U TW M574793 U TWM574793 U TW M574793U TW 107214332 U TW107214332 U TW 107214332U TW 107214332 U TW107214332 U TW 107214332U TW M574793 U TWM574793 U TW M574793U
- Authority
- TW
- Taiwan
- Prior art keywords
- network
- external device
- connection interface
- switching module
- power supply
- Prior art date
Links
Landscapes
- Small-Scale Networks (AREA)
Abstract
本創作提供一種可偵測外部裝置狀態的網路裝置，包含有網路連接介面連接外部裝置，網路供電器電性連接網路連接介面，以藉其連接外部裝置，並傳輸電能至外部裝置，網路交換模組電性連接網路連接介面及網路供電器，網路交換模組藉由網路連接介面連接至外部裝置，以進行網路封包傳輸，並利用網路封包流量偵測外部裝置的作動狀態，網路交換模組亦可藉由網路供電器所傳輸的電能流量偵測外部裝置的作動狀態，並可控制重啟外部裝置。本創作可以動態確認遠端之外部裝置是否正常，以及透過監控進行重啟。The present invention provides a network device capable of detecting the state of an external device, including a network connection interface for connecting an external device, and the network power supply electrically connecting the network connection interface to connect the external device and transmit the power to the external device. The network switching module is electrically connected to the network connection interface and the network power supply. The network switching module is connected to the external device through the network connection interface for network packet transmission, and uses the network packet flow detection. The operating state of the external device, the network switching module can also detect the operating state of the external device by the power flow transmitted by the network power supply, and can control the restart of the external device. This creation can dynamically confirm whether the remote external device is normal and restart through monitoring.
Description
本創作係關於一種用於乙太網路的網路裝置，尤其係一種可偵測外部裝置狀態的網路裝置。This creation relates to a network device for an Ethernet network, and more particularly to a network device that can detect the state of an external device.
當電腦及網路技術快速發展後，電腦與電腦及外部網路於溝通方面，例如使用乙太網路裝置等設備，可以利用乙太網路供電(Power Over Ethernet，PoE)，對應受電設備提供電能。After the rapid development of computer and network technology, computers and computers and external networks can communicate with each other, such as devices using Ethernet devices, which can be powered by Power Over Ethernet (PoE). Electrical energy.
但在正常的使用狀態下，具有乙太網路供電功能之設備持續供電給外部裝置，一但當外部裝置產生錯誤或故障，會導致無法繼續使用，若持續供電會損耗系統效能或是發生公共安全的危險，例如監控設備已經失效，沒有繼續進行錄影動作，導致受監視區域容易發生危險。However, under normal use conditions, devices with Ethernet power supply continue to supply power to external devices. Once an external device generates an error or malfunction, it may not continue to be used. If the power supply continues, the system performance will be lost or public. Safety hazards, such as monitoring equipment that has failed, do not continue to record, causing the monitored area to be dangerous.
因此，習知技術提出利用網路位址(IP)進行溝通，但仍具有許多問題，例如連接的外部裝置不具備IP，就無法使用此一方法。另外，即使具有IP，若當外部裝置無法回應，例如使用的中央處理器(CPU)速度不夠快，除了外部裝置本身的功能需求外，無法另外應付IP溝通回應需求時，或是中央處理器在溝通的當下已經中斷或當機，但回應的系統仍然發出回應需求，都會導致IP溝通無法有效且正確的處理。並且，假設外部裝置系統正常時，只是因為中央處理器忙碌無法及時回應需求，或是因為延誤回覆被認定有問題，而進行斷電、複電重開機，但此時外部裝置係不應該重新啟動，都會影響IP位址溝通的功效。Therefore, the prior art proposes to communicate using a network address (IP), but still has many problems, such as the fact that the connected external device does not have IP, and this method cannot be used. In addition, even if there is IP, if the external device cannot respond, for example, the central processing unit (CPU) used is not fast enough, in addition to the functional requirements of the external device itself, it is not possible to cope with the IP communication response request, or the central processing unit is The current communication has been interrupted or crashed, but the responding system still sends out a response request, which will result in IP communication not being processed effectively and correctly. Also, if the external device system is normal, the CPU should not be restarted because the CPU is too busy to respond to the request in time, or because the delay is recognized as having a problem, and the power is turned off and the power is turned back on. , will affect the effectiveness of IP address communication.
有鑑於此，本創作為了克服習知利用網路位址進行溝通的缺失，特別提出一種可偵測外部裝置狀態的網路裝置，以改善習知技術的缺失。In view of this, in order to overcome the lack of communication using the network address, the present invention proposes a network device that can detect the state of the external device to improve the lack of the prior art.
本創作的主要目的係在提供一種可偵測外部裝置狀態的網路裝置，利用網路裝置中與外部裝置在溝通時，產生的網路封包以及供電時的電能偵測，可以主動得知外部裝置的使用狀態，並且在偵測問題的當下，可以重啟外部裝置，以使外部裝置的作動恢復正常。The main purpose of this creation is to provide a network device that can detect the state of an external device, and can utilize the network packet generated during communication with the external device in the network device and the power detection during power supply, and can actively learn the external The state of use of the device, and when the problem is detected, the external device can be restarted to restore the operation of the external device to normal.
本創作的另一目的係在提供一種可偵測外部裝置狀態的網路裝置，利用上述的網路封包或供電偵測，可以不限制外部裝置是否需為乙太網路受電設備，或是不限制是否為需具有乙太網路功能之設備，例如單純只是受電而不具網路功能，使得進行封包資料傳輸或供電時，皆可有效偵測外部裝置的使用狀態。Another object of the present invention is to provide a network device capable of detecting the state of an external device. By using the above network packet or power detection, it is possible to not limit whether the external device needs to be an Ethernet powered device, or Restricting whether it is a device that needs to have an Ethernet function, for example, it is simply powered by and does not have a network function, so that when the packet data is transmitted or powered, the state of use of the external device can be effectively detected.
為了達成上述的目的，本創作提供一種可偵測外部裝置狀態的網路裝置，可連接至少一外部裝置，網路裝置包含有至少一網路連接介面連接外部裝置，網路供電器電性連接網路連接介面，藉由網路連接介面連接外部裝置，並傳輸電能至外部裝置，網路交換模組電性連接網路連接介面及網路供電器，網路交換模組藉由網路連接介面連接至外部裝置，以進行網路封包傳輸，並利用網路封包流量偵測外部裝置的作動狀態，網路交換模組亦藉由網路供電器傳輸的電能流量偵測外部裝置的作動狀態，並控制重啟外部裝置。In order to achieve the above object, the present invention provides a network device capable of detecting the state of an external device, which can be connected to at least one external device. The network device includes at least one network connection interface for connecting an external device, and the network power supply is electrically connected. The network connection interface connects the external device through the network connection interface and transmits the power to the external device. The network switching module is electrically connected to the network connection interface and the network power supply, and the network switching module is connected through the network. The interface is connected to the external device for network packet transmission, and the network packet flow is used to detect the active state of the external device, and the network switching module detects the operating state of the external device by the power flow transmitted by the network power supply. And control to restart the external device.
在本創作中，網路交換模組還包含有網路交換器電性連接網路連接介面，與外部裝置傳輸網路封包，處理器電性連接網路交換器及網路供電器，以偵測網路封包流量及電能流量，並可控制重啟外部裝置。處理器為中央處理器或微處理器。In the present invention, the network switching module further includes a network switch electrically connecting the network connection interface, and transmitting the network packet with the external device, and the processor is electrically connected to the network switch and the network power supply to detect Measure network packet traffic and power flow, and control the restart of external devices. The processor is a central processing unit or a microprocessor.
在本創作中，外部裝置為乙太網路受電之網路設備、非直接乙太網路受電之網路設備或乙太網路受電之非網路設備。In this creation, the external device is a network device that is powered by Ethernet, a network device that is not directly powered by Ethernet, or a non-network device that is powered by Ethernet.
在本創作中，網路交換模組還可藉由偵測外部裝置的網路位址，以得知外部裝置的作動狀態。In this creation, the network switching module can also detect the operating state of the external device by detecting the network address of the external device.
在本創作中，網路供電器及網路交換模組具有IEEE802.3at/af以上之協議標準。In this creation, the network power supply and network switching module have a protocol standard of IEEE802.3at/af or higher.
底下藉由具體實施例詳加說明，當更容易瞭解本創作之目的、技術內容、特點及其所達成之功效。The details of the creation, the technical content, the features and the effects achieved by the present invention are more easily explained by the detailed description of the specific embodiments.
本創作為了確認及記錄網路裝置連接的外部裝置之受電狀態，並有別於習知技術的偵測方式，提出更完備的網路裝置，藉由其中網路供電器及網路交換模組的功能，可以執行干擾式或非干擾式監控，使得外部裝置的作動狀態可以更有效被掌握，確保外部裝置的系統效能以及減低危害公共安全的疑慮。In order to confirm and record the power receiving status of the external devices connected to the network device, and in contrast to the detection methods of the prior art, the present invention proposes a more complete network device, in which the network power supply and the network switching module are used. The function can perform interfering or non-interfering monitoring, so that the operating state of the external device can be more effectively mastered, ensuring the system performance of the external device and reducing the concern of public safety.
首先，請參照本創作第一圖所示，一種可偵測外部裝置狀態的網路裝置10係連接至少一外部裝置12，在本實施例係先以一個外部裝置12為例說明，外部裝置12係可為乙太網路受電之網路設備、非直接乙太網路受電之網路設備或乙太網路受電之非網路設備。網路裝置10包含至少一網路連接介面14、一網路供電器16及一網路交換模組18，在本實施例中係先以一網路連接介面14為例說明，但本創作不以上述實施例所示之數量為限制，網路連接介面14係可為RJ45之連接埠，而網路供電器16及網路交換模組18具有IEEE802.3at/af以上之協議標準，使得網路裝置10也具有IEEE802.3at/af以上之協議標準。網路供電器16電性連接網路連接介面14，並藉由網路連接介面14連接到外部裝置12，在本創作中，每一網路連接介面14係對應連接一外部裝置12。First, as shown in the first figure of the present application, a network device 10 capable of detecting the state of an external device is connected to at least one external device 12. In this embodiment, an external device 12 is taken as an example to describe the external device 12. It can be a network device that is powered by Ethernet, a network device that is not directly powered by Ethernet, or a non-network device that is powered by Ethernet. The network device 10 includes at least one network connection interface 14, a network power supply unit 16, and a network switching module 18. In this embodiment, a network connection interface 14 is used as an example, but the creation is not With the limitation of the number shown in the foregoing embodiment, the network connection interface 14 can be the connection port of the RJ45, and the network power supply 16 and the network switching module 18 have the protocol standard of IEEE802.3at/af or higher, so that the network The road device 10 also has a protocol standard of IEEE802.3at/af or higher. The network power supply 16 is electrically connected to the network connection interface 14 and is connected to the external device 12 through the network connection interface 14. In the present creation, each network connection interface 14 is connected to an external device 12.
承接上段，在網路交換模組18中還包含有一網路交換器182及一處理器184，網路交換模組18係利用網路交換器182電性連接網路連接介面14及處理器184，在本創作中，處理器184係可為中央處理器(Central Processing Unit，CPU)或微處理器(Microcontroller Unit，MCU)。In the above section, the network switch module 18 further includes a network switch 182 and a processor 184. The network switch module 18 is electrically connected to the network connection interface 14 and the processor 184 by using the network switch 182. In the present creation, the processor 184 can be a Central Processing Unit (CPU) or a Microcontroller Unit (MCU).
說明完本創作的結構關係後，接著詳細說明本創作的作動方式，並請同時參照本創作第一圖所示，網路裝置10係利用網路供電器16傳輸電能至外部裝置12，以提供外部裝置12電能，並利用網路交換模組18與外部裝置12進行網路封包之傳輸動作，以進行資料傳遞，由於外部裝置12可能是乙太網路受電之網路設備、非直接乙太網路受電之網路設備或乙太網路受電之非網路設備，例如可以是網路電話(PoE IP Phone)、網路攝影機(PoE IP Camera)、無線基地台(PoE Wi-Fi AP)、乙太網路供電延伸器(PoE Extender)或乙太網路受電分歧器(PoE Splitter)，因此網路裝置10可以只進行電能傳輸或是只傳輸網路封包，也可以同時進行，根據使用者所連接的外部裝置12而定。網路交換模組18中的處理器184可以藉由偵測網路封包的流量或是電能流量，以得知外部裝置12的作動狀態，當傳輸時的網路封包流量或是電能流量不正確時，例如超出正常值多少範圍，表示外部裝置12具有作動不正確的疑慮，處理器184可以下達命令以控制外部裝置12重新啟動，在本創作中，可以利用網路交換器182的流量計數器搭配作為微處理器之處理器184，以達成偵測及控制的功能，並且使用微處理器還能降低整體的製作成本。After explaining the structural relationship of the creation, the operation mode of the creation is explained in detail, and, as shown in the first figure of the creation, the network device 10 transmits power to the external device 12 by using the network power supply 16 to provide The external device 12 powers and uses the network switching module 18 and the external device 12 to perform a network packet transmission operation for data transmission. Since the external device 12 may be a network device that is powered by the Ethernet, the indirect Ethernet device A network device that is powered by a network or a non-network device that is powered by an Ethernet network, such as a PoE IP Phone, a PoE IP Camera, or a PoE Wi-Fi AP. , the PoE Extender or the Ethernet PoE Splitter, so the network device 10 can only transmit power or only transmit network packets, or simultaneously, according to the use. It depends on the external device 12 to which it is connected. The processor 184 in the network switching module 18 can detect the traffic state of the network packet or the power traffic to know the operating state of the external device 12, and the network packet traffic or the power traffic during the transmission is incorrect. When, for example, the range beyond the normal value indicates that the external device 12 has an suspicion that the operation is incorrect, the processor 184 can issue a command to control the external device 12 to restart. In the present creation, the traffic counter of the network switch 182 can be used. As the processor 184 of the microprocessor, the detection and control functions are realized, and the use of the microprocessor can also reduce the overall manufacturing cost.
上述的實施例，係以一個外部裝置為例說明，請參照本創作第二圖所示，網路裝置10可以具有複數網路連接介面14，本創作不限制數量多寡，依使用者需求設定，可以利用這些網路連接介面14以連接外部的複數外部裝置12，只要符合一網路連接介面14連接一外部裝置12即可，其餘連接關係及作動方式與上述實施例相同，恕不在此贅述。The above embodiment is described by taking an external device as an example. Referring to the second figure of the present creation, the network device 10 may have a plurality of network connection interfaces 14, which are not limited in number, and are set according to user requirements. The network connection interface 14 can be used to connect the external plurality of external devices 12, as long as a network connection interface 14 is connected to an external device 12. The remaining connection relationships and operation manners are the same as those in the above embodiments, and will not be described herein.
另外，請參照本創作第三圖所示，本創作中的網路交換模組18係可為乙太網路交換器，而網路供電器16係可為乙太網路供電器，使用者，例如網路管理者，可以透過主機連接至網路交換模組18，再透過網路交換模組18連接至網路供電器16，而網路供電器16會透過網路連接介面14連接外部裝置，在本實施例中以四個網路連接介面14連接四個外部裝置12為例說明，這些外部裝置12可以是具有乙太網路供電但非網路設備的機器或是網路電話、網路監控設備等，本創作不以外部裝置12的種類作限制，只要是可以接收乙太網路供電之設備即可。如此一來，使用者可以透過主機連接網路交換模組18，再透過網路交換模組18與網路供電器16的連接關係，可以得知網路供電器16與這些外部裝置12的供電情況，使用者就可以透過電能流量的偵測，以得知外部裝置12作動是否正常，一旦發生不正常現象時，就可以進行相對應之外部裝置12的重開機或永久關機，同時記錄這些異常的現象。In addition, please refer to the third figure of this creation, the network switching module 18 in this creation can be an Ethernet switch, and the network power supply 16 can be an Ethernet power supply, the user For example, the network administrator can connect to the network switching module 18 through the host, and then connect to the network power supply 16 through the network switching module 18, and the network power supply 16 connects to the external network through the network connection interface 14. In the embodiment, four external network devices 12 are connected by four network connection interfaces 14 as an example. The external devices 12 may be devices with Ethernet power but not network devices or network phones. For network monitoring equipment, etc., the creation is not limited by the type of the external device 12, as long as it can receive the power supply of the Ethernet. In this way, the user can connect to the network switching module 18 through the host, and then through the connection relationship between the network switching module 18 and the network power supply 16, the power supply of the network power supply 16 and the external devices 12 can be known. In this case, the user can detect whether the external device 12 is working normally through the detection of the power flow. When an abnormal phenomenon occurs, the corresponding external device 12 can be restarted or permanently shut down, and the abnormalities are recorded. The phenomenon.
本創作係針對所連接之外部裝置自動進行搜尋及配對，以供使用者進行供電設定，並在異常時進行通報及重啟，本創作不限制搜尋的方式，例如可以是鏈路層發現協定(Link Layer Discovery Protocol，LLDP)、網路視訊監控協定(ONVIF) WS-Discovery、簡單網路管理協定(SNMP)、或智慧搜尋(Smart Discovery) 等搜尋方式，可以用供群組設定，以利使用者依照設備屬性進行合適的管理方式。例如，干擾式及非干擾式，以使網路裝置進行封包流量監控及用電流量的監控，本創作不限制封包型式，使用者可以自行決定，本創作中的用電流量可以是電流量或是用電瓦特數，也依照使用者而定。This authoring system automatically searches and pairs the connected external devices for the user to set the power supply, and notifies and restarts when an abnormality occurs. This creation does not limit the search method, for example, it can be a link layer discovery protocol (Link). Layer Discovery Protocol (LLDP), Network Video Surveillance Protocol (ONVIF) WS-Discovery, Simple Network Management Protocol (SNMP), or Smart Discovery (Search) can be used for group settings to facilitate users. Proper management according to device attributes. For example, interference type and non-interference type, so that the network device performs packet flow monitoring and current quantity monitoring. This creation does not limit the packet type. The user can decide at his own discretion that the amount of current used in the creation can be the amount of current or It is the number of electricity watts, and it depends on the user.
在非干擾式中，有關外部裝置重啟之設計，使用者可以自行設定，若外部裝置並無異常時，不會有重啟的情況發生，但當控制設定條件發生時，超出所設定的範圍設定後，可以進行外部裝置的重啟，並且利用處理器對重啟次數做統計，以供使用者得知外部裝置的作動狀態。而干擾式管理可以利用處理器依照封包傳輸並等候外部裝置回應，本創作中的封包傳輸係可藉由外部裝置所回應之封包格式，例如Ping、Web port、SNMP port、SIP port等，重啟的方式也同於上述實施例，當外部裝置無法於預設時間、預設次數回應時，即可進行重啟並回報。In the non-interfering type, the design of the external device restart can be set by the user. If there is no abnormality in the external device, there will be no restart, but when the control setting condition occurs, it will exceed the set range setting. The external device can be restarted, and the number of restarts is counted by the processor for the user to know the operating state of the external device. Interfering management can use the processor to transmit according to the packet and wait for the external device to respond. The packet transmission in this creation can be restarted by the packet format responded by the external device, such as Ping, Web port, SNMP port, SIP port, etc. The method is also the same as the above embodiment. When the external device cannot respond to the preset time and the preset number of times, the system can be restarted and rewarded.
另外，除了上述的偵測方式以外，本創作中的網路交換模組，也可以藉由偵測外部裝置的網路位址，以得知外部裝置的作動狀態，例如當外部裝置若當機或發生異常時，會使外部裝置失去網路位址。但在本創作中，仍然主要利用上述的封包流量及電能流量偵測為主，即可用於偵測各種不同型態的外部裝置，以避免作動狀態有誤。In addition, in addition to the above detection methods, the network switching module in the present invention can also detect the operating state of the external device by detecting the network address of the external device, for example, when the external device is down. Or when an abnormality occurs, the external device loses the network address. However, in this creation, the above-mentioned packet flow and power flow detection are still mainly used, and it can be used to detect various external devices of different types to avoid the wrong state of actuation.
以上所述之實施例僅係為說明本創作之技術思想及特點，其目的在使熟習此項技藝之人士能夠瞭解本創作之內容並據以實施，當不能以之限定本創作之專利範圍，即大凡依本創作所揭示之精神所作之均等變化或修飾，仍應涵蓋在本創作之專利範圍。The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equal changes or modifications made by the general in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.
10‧‧‧網路裝置10‧‧‧Network devices
12‧‧‧外部裝置 12‧‧‧External devices
14‧‧‧網路連接介面 14‧‧‧Network connection interface
16‧‧‧網路供電器 16‧‧‧Network Power Supply
18‧‧‧網路交換模組 18‧‧‧Network Switching Module
182‧‧‧網路交換器 182‧‧‧Network Switch
184‧‧‧處理器 184‧‧‧ processor
第一圖為本創作連接一外部裝置的方塊示意圖。 第二圖為本創作連接複數外部裝置的方塊示意圖。 第三圖為本創作中網路交換模組及網路供電器與外部裝置連接關係的方塊示意圖。The first figure is a block diagram of an external device connected to the author. The second figure is a block diagram of the creation of a plurality of external devices. The third figure is a block diagram of the connection relationship between the network switching module and the network power supply and the external device in the creation.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107214332U TWM574793U (en) | 2018-10-23 | 2018-10-23 | Network device capable of detecting state of external device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107214332U TWM574793U (en) | 2018-10-23 | 2018-10-23 | Network device capable of detecting state of external device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM574793U true TWM574793U (en) | 2019-02-21 |
Family
ID=66215214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107214332U TWM574793U (en) | 2018-10-23 | 2018-10-23 | Network device capable of detecting state of external device |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM574793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI729551B (en) * | 2019-11-01 | 2021-06-01 | 連易通科技股份有限公司 | Uninterruptible power system and method using Ethernet for power supply |
| TWI800689B (en) * | 2019-10-21 | 2023-05-01 | 瑞昱半導體股份有限公司 | Electronic device, network switch, and interrupt transmitting and receiving method |
-
2018
- 2018-10-23 TW TW107214332U patent/TWM574793U/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI800689B (en) * | 2019-10-21 | 2023-05-01 | 瑞昱半導體股份有限公司 | Electronic device, network switch, and interrupt transmitting and receiving method |
| TWI729551B (en) * | 2019-11-01 | 2021-06-01 | 連易通科技股份有限公司 | Uninterruptible power system and method using Ethernet for power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10715411B1 (en) | Altering networking switch priority responsive to compute node fitness | |
| US8212396B2 (en) | Apparatus power restart method in response to network connection status | |
| US10693813B1 (en) | Enabling and disabling links of a networking switch responsive to compute node fitness | |
| US8204990B1 (en) | Power cycler with internet connectivity monitor | |
| US20080112333A1 (en) | Communicating an operational state of a transport service | |
| TW200931274A (en) | Control device, data processing device and method thereof | |
| EP1290824A2 (en) | High availability networking with virtual ip address failover | |
| WO2013097485A1 (en) | Disk array, storage system, and method for switching data storage paths | |
| WO2014031207A1 (en) | A network controller for remote system management | |
| WO2017054547A1 (en) | Bidirectional forwarding detection method and apparatus | |
| WO2017215268A1 (en) | Method and device for router control, power adapter, and router | |
| WO2011143876A1 (en) | Master/backup switching method and device for service nodes | |
| WO2014040466A1 (en) | Method and device for controlling ap | |
| EP3629535B1 (en) | Method, device, and system for implementing mux machine | |
| KR102541286B1 (en) | Network Integrated Wiring Fault Management System based on single server | |
| US20230198874A1 (en) | Link detection method and system | |
| WO2017101762A1 (en) | Negotiation mode processing method and intelligent network device | |
| TWM574793U (en) | Network device capable of detecting state of external device | |
| US20050080903A1 (en) | Method, system, and program for maintaining a link between two network entities | |
| US9014041B2 (en) | Method and system for configuring a device that has failed to obtain network address | |
| CN102412997B (en) | Method and system for transmitting link on/off state under main/standby environment | |
| JP2014140095A (en) | Communication system and network relay device | |
| US7746949B2 (en) | Communications apparatus, system and method of creating a sub-channel | |
| KR102032898B1 (en) | Method for remote power control using power over ethernet line and the apparatus thereof | |
| TWI747737B (en) | Multi-access edge computing architecture and detection method thereof |