CN107968713B - Remote wake-up method, device and system - Google Patents
Remote wake-up method, device and system Download PDFInfo
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- CN107968713B CN107968713B CN201610916481.XA CN201610916481A CN107968713B CN 107968713 B CN107968713 B CN 107968713B CN 201610916481 A CN201610916481 A CN 201610916481A CN 107968713 B CN107968713 B CN 107968713B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The invention discloses a remote awakening method, a remote awakening device and a remote awakening system, and belongs to the technical field of communication. The method comprises the following steps: and after the network equipment is in a state to be awakened, receiving an awakening message sent by the router, and awakening the network equipment according to the awakening message. The wake-up message is used for waking up the network device, and the state to be woken up is a dormant state or a power-off state. According to the invention, after the network equipment is in a state to be awakened, the network equipment is awakened according to the awakening message by receiving the awakening message sent by the router, the router can directly send the awakening message to the network equipment, the awakening message can be sent to the network equipment without a local management server, and the local management server is not required to be arranged between the network equipment and the router, so that the power consumption generated by the local management server is avoided, the power consumption of a remote awakening system is reduced, and the flexibility of a remote awakening process is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a remote wake-up method, apparatus, and system.
Background
The remote Wake-up (WOL) technology is applied to a local area network or a wide area network, and is used to Wake up a device in a state to be woken up (e.g., a sleep state or a power-off state), so that the wakened device can be restored to a normal operating state from the state to be woken up.
In the prior art, a remote wake-up system implementing WOL technology in a wide area network may include: a remote management server, a router, a local management server, and a network device. The remote management server and the router are located in a wide area network, and the local management server and the network equipment are located in the same local area network. And the router may query the routing table entry to obtain the IP address of the local management server after receiving the message sent by the remote management server to the network device, and forward the message to the local management server according to the IP address, so that the local management server forwards the message to the network device.
Specifically, the remote management server needs to send a wake-up packet to the network device, the router in the wan receives the wake-up packet, and queries the router table entry of the router according to the wake-up packet, obtains the IP address of the local management server and forwards the wake-up packet to the local management server, the local management server receives and analyzes the wake-up packet, and after determining that the network device needs to be woken up, forwards the wake-up packet to the network device, and the network device receives the wake-up packet, powers on the network device according to the wake-up packet, and restores the network device to a normal operating state.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
because the router and the network device are in different networks, usually only the IP address of the local management server can be queried in the routing table entry, but the IP address of the network device cannot be queried, and only the wake-up message can be sent to the local management server, when the WOL technology is implemented, the local management server must be deployed in the local area network, and the local management server has high power consumption, and the flexibility of the remote wake-up process is limited.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a remote wake-up method, apparatus, and system. The technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a remote wake-up method, which is used for a network device of a remote wake-up system, where the remote wake-up system includes: the remote management server and the router are positioned in a wide area network, the network equipment is positioned in a local area network, and the routing table entry stored in the router records the Internet protocol IP address of the network equipment;
the method comprises the following steps:
after the network device is in the state to be woken up, the network device may receive a wake-up packet sent by the router, and wake up the network device according to the wake-up packet. The router queries the routing table entry to obtain the IP address of the network device, and then forwards the IP address to the network device according to the IP address, wherein the state to be awakened is a dormant state or a shutdown state.
After the network equipment is in a state to be awakened, the network equipment is awakened according to the awakening message by receiving the awakening message sent by the router, the router can directly send the awakening message to the network equipment, the awakening message can be sent to the network equipment without a local management server, the local management server does not need to be arranged between the network equipment and the router, power consumption of the local management server is avoided, power consumption of a remote awakening system is reduced, and flexibility of a remote awakening process is improved.
In a possible design, before the network device receives the wake-up packet sent by the router, the network device may send the IP address of the network device to the router, so that the router updates the routing table entry, and the updated routing table entry records the IP address of the network device.
The network device sends the IP address of the network device to the router, so that the routing table entry of the router is refreshed, the aging time of the IP address of the network device in the routing table entry is refreshed, the IP address of the network device can be continuously recorded in the routing table entry, and the router can send the wake-up message to the network device through the IP address of the network device, so that the efficiency of sending the wake-up message to the network device is improved.
In a possible design, in the process of sending the IP address of the network device to the router, the network device may send an address resolution protocol ARP packet to the router once every preset time period, where the ARP packet includes the IP address of the network device.
The network equipment periodically sends the IP address of the network equipment to the router, and a module for sending the IP address in the network equipment is not required to be continuously kept in a power-on state, and only needs to be powered on when the IP address is sent, so that the power consumption of the network equipment is reduced.
Of course, the network device may also send the IP address of the network device to the router in other manners, for example, the network device may first receive the ARP query message sent by the router, then generate an ARP response message according to the ARP query message, and finally send the ARP response message to the router, so that the router refreshes the routing table entry according to the ARP response message, and the storage duration of the IP address of the network device in the refreshed routing table entry is recorded again.
The ARP query message is sent by the router to the network device when the storage time of the IP address of the network device recorded in the routing table entry reaches the aging time threshold, and is used to query whether the IP address of the network device needs to be deleted. The ARP response message includes the IP address of the network device.
The network equipment sends the ARP response message to the router according to the received ARP query message, so that the IP address of the network equipment can be sent to the router in time, the IP address of the network equipment in the routing table entry of the router is prevented from aging, and the flexibility of sending the IP address to the router by the network equipment is improved.
In a possible design, before the network device sends the IP address of the network device to the router, the network device further needs to receive a sleep instruction sent by the remote management server, enter a to-be-woken state according to the sleep instruction, and send the IP address of the network device according to a mode indicated by the sleep instruction in a sleep process of the network device.
The sleep instruction comprises a mode indication identifier, wherein the mode indication identifier is used for indicating a mode of sending an IP address of the network equipment by the network equipment, and the mode of sending the IP address by the network equipment can be an active mode or a passive mode.
In one possible design, after the network device wakes up the network device according to the wake-up message, the network device may further receive a confirmation message sent by the remote management server, generate a confirmation response message according to the confirmation message, and send the confirmation response message to the remote management server.
The acknowledgement message is used to confirm whether the network device is awake, and the acknowledgement message is used to indicate that the network device is awake.
The network device sends the confirmation response message to the remote management server according to the received confirmation message, so that the remote management server confirms that the network device is awakened, corresponding work can be executed through the network device, the situation that the network device is not awakened but the remote management server does not know is avoided, and the reliability of awakening the network device is improved.
In one possible design, the wake-up message is a user data protocol UDP message, and a magic packet message is encapsulated in the UDP message.
When the network device wakes up the network device according to the wake-up message, the network device needs to firstly analyze the UDP message to obtain a magic packet message, identify whether a Media Access Control (MAC) address carried by the magic packet message is consistent with an MAC address of the network device, and wake up the network device when the MAC address carried by the magic packet message is consistent with the MAC address of the network device.
The network equipment acquires the magic packet message by analyzing the UDP message and judges according to the MAC address in the magic packet message so as to determine whether the network equipment needs to be awakened or not.
In one possible design, the network device may include a physical layer PHY chip, a complex programmable logic device CPLD, a small computer standard interface device management SES, and a processing module.
When the MAC address carried by the magic packet message identified by the PHY chip is consistent with the MAC address of the network equipment, the PHY chip sends a power-on instruction to the CPLD, so that the CPLD powers on the SES and the processing module according to the power-on instruction, and the network equipment is awakened.
In a second aspect, an embodiment of the present invention provides a remote wake-up method, which is used for a router of a remote wake-up system, where the remote wake-up system includes: the remote management server and the router are located in a wide area network, the network equipment is located in a local area network, and the routing table entry stored in the router records the internet protocol IP address of the network equipment.
The method comprises the following steps:
after the network equipment is in a state to be awakened, the router receives an awakening message sent by the remote management server, inquires a routing table item to obtain the IP address of the network equipment, and forwards the awakening message to the network equipment according to the IP address of the network equipment, so that the network equipment is awakened.
The wake-up message is generated by the remote management server, and the state to be woken up is a dormant state or a power-off state.
After the network equipment is in a state to be awakened, receiving an awakening message sent by a remote management server through a router, inquiring a routing table entry to obtain an IP address of the network equipment, and forwarding the awakening message to the network equipment according to the IP address of the network equipment so as to awaken the network equipment. The router can directly send the awakening message to the network equipment, the awakening message can be sent to the network equipment without a local management server, and the local management server is not required to be arranged between the network equipment and the router, so that the power consumption of the local management server is avoided, the power consumption of a remote awakening system is reduced, and the flexibility of a remote awakening process is improved.
In a possible design, before the router receives the wake-up packet sent by the remote management server, the router may also receive the IP address of the network device sent by the network device, and refresh the routing table entry, so that the refreshed routing table entry records the IP address of the network device.
The router refreshes the routing table entry of the router by receiving the IP address of the network device sent by the network device, so that the aging time of the IP address of the network device in the routing table entry is refreshed, the IP address of the network device can be continuously recorded in the routing table entry, and the router can send the wake-up message to the network device through the IP address of the network device, thereby improving the efficiency of sending the wake-up message to the network device.
In a possible design, in the process of receiving the IP address of the network device sent by the network device, the router may receive an ARP packet sent every preset time period by the network device, where the ARP packet includes the IP address of the network device.
The router can refresh the routing table entry in time by receiving the IP address periodically sent by the network equipment, so that the IP address of the network equipment is prevented from aging, the router can be ensured to search the IP address of the network equipment in the routing table entry at any time, and the reliability of awakening the network equipment is improved.
Of course, the router may also receive the IP address sent by the network device in other manners, for example, when the storage duration of the IP address of the network device recorded in the routing table entry reaches the aging duration threshold, the router sends an ARP query message to the network device, so that the network device generates an ARP response message according to the ARP query message, and sends the ARP response message to the router, the router receives the ARP response message sent by the network device, and refreshes the routing table entry according to the ARP response message, so that the storage duration of the IP address of the network device in the refreshed routing table entry is recorded again.
The ARP query message is used to query whether the IP address of the network device needs to be deleted, and the ARP response message includes the IP address of the network device.
The router sends the ARP query message to the network equipment, and the network equipment sends the ARP response message to the router according to the ARP query message, so that the IP address of the network equipment can be sent to the router in time, the IP address of the network equipment in the routing table entry of the router is prevented from aging, and the flexibility of the router for refreshing the routing table entry is improved.
In one possible design, the wake-up message is a user data protocol UDP message, and a magic packet message is encapsulated in the UDP message.
In a third aspect, a remote wake-up apparatus is provided, configured to perform the remote wake-up method provided in the first aspect.
In a fourth aspect, a remote wake-up apparatus is provided for executing the remote wake-up method provided in the second aspect.
The remote wake-up device provided in the third to fourth aspects may include: the device comprises a receiver, a transmitter, a memory and a processor, wherein the receiver, the transmitter and the memory are respectively connected with the processor.
The memory may include a cache memory (cache), a Random Access Memory (RAM), and a non-volatile memory (non-volatile memory), such as at least one disk memory.
The processor may be a Central Processing Unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention. Wherein the processor is configured to execute the program code to implement the relevant steps of the first aspect or the second aspect.
In a fifth aspect, there is provided a remote wake-up system comprising at least one of the remote wake-up unit of the third aspect and the remote wake-up unit of the fourth aspect.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
after the network equipment is in a state to be awakened, the network equipment is awakened according to the awakening message by receiving the awakening message sent by the router, the router can directly send the awakening message to the network equipment, the awakening message can be sent to the network equipment without a local management server, the local management server does not need to be arranged between the network equipment and the router, power consumption of the local management server is avoided, power consumption of a remote awakening system is reduced, and flexibility of a remote awakening process is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1a is a schematic structural diagram of a remote wake-up system according to an embodiment of the present invention;
fig. 1b is a schematic structural diagram of a network device in a remote wake-up system according to an embodiment of the present invention;
fig. 2 is a flowchart of a remote wake-up method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a remote wake-up apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a modified remote wake-up apparatus shown in FIG. 3;
FIG. 5 is a schematic diagram of a modified remote wake-up apparatus shown in FIG. 4;
FIG. 6 is a schematic diagram of a modified remote wake-up apparatus shown in FIG. 3;
fig. 7 is a schematic structural diagram of a remote wake-up apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a modified remote wake-up apparatus shown in FIG. 7;
fig. 9 is a schematic structural diagram of a remote wake-up apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1a is a schematic structural diagram of a remote wake-up system 10 according to an embodiment of the present invention, and referring to fig. 1a, the remote wake-up system 10 may include a remote management server 101, a router 102, and a network device 103, where the remote management server 101 and the router 102 are both located in a wide area network, the network device 103 is located in a local area network, and the router 102 is both connected to the remote management server 101 and the network device 103.
The router 102 stores therein a routing table entry, and the routing table entry records an IP address of the network device 103.
In addition, the network device 103 may be a terminal device, or may be another device, which is not limited in this embodiment of the present invention. Furthermore, referring to FIG. 1b, the network Device 103 may generally include a Physical layer (PHY) chip 1031, a Complex Programmable Logic Device (CPLD) 1032, a Small Computer System Interface (SCSI) Device management (SES) 1033, and a Processing module 1034, such as a Central Processing Unit (CPU).
The router 102 is configured to receive the IP address sent by the network device 103, and refresh the routing table entry according to the IP address, so as to prevent the IP address of the network device 103 from aging.
The remote management server 101 is configured to generate a wake-up packet, send the wake-up packet to the router 102, and forward the wake-up packet to the network device 103 by the router 102, so that the network device 103 can be woken up according to the wake-up packet.
The router 102 is further configured to receive a wake-up packet sent by the remote management server 101, query the IP address of the network device 103 in a routing table entry according to the wake-up packet, forward the wake-up packet to a port corresponding to the IP address after determining the IP address of the network device 103, and finally send the wake-up packet to the network device 103.
It should be noted that, in practical applications, the remote wake-up system 100 may include a plurality of remote management servers 101, a plurality of routers 102, and a plurality of network devices 103, and the embodiment of the present invention is only described with one remote management server 101, one router 102, and one network device 103 as an example, and the embodiment of the present invention does not limit the number of the remote management servers 101, the routers 102, and the network devices 103 in the remote wake-up system 100.
Fig. 2 is a flowchart of a remote wake-up method according to an embodiment of the present invention, and as shown in fig. 2, the remote wake-up method applied in the remote wake-up system shown in fig. 1a includes the following steps:
in step 201, the remote management server sends a sleep command to the network device.
The sleep instruction is used for indicating the network equipment to enter a state to be awakened.
Specifically, when it is determined that the network device does not need to be continuously in the power-on state, a sleep instruction may be sent to the network device through the remote management server, and after the network device receives the sleep instruction, a power-off or sleep action may be executed according to the sleep instruction, so that the network device enters the state to be awakened.
Moreover, the sleep instruction may further include a mode indication identifier, where the mode indication identifier is used to indicate a mode in which the network device sends the IP address of the network device to the router, and the mode in which the network device sends the IP address may include an active mode and a passive mode.
The mode indicator may be in a character form or a number form, which is not limited in the embodiment of the present invention. For example, the mode indication flag may be "0" or "1" in the form of a character, wherein the active mode flag may be "0" and the passive mode flag may be "1". After the network device receives the dormancy instruction, the mode indicator may be detected at a designated location in the dormancy instruction, and the mode for sending the IP address to the router in the dormancy process may be determined according to the mode indicator.
When the mode indicated by the mode indication identifier is an active mode, the network equipment sends the IP address of the network equipment to the router every preset time; when the mode indicated by the mode indication identifier is a passive mode, the network device sends the IP Address of the network device to the router after receiving an Address Resolution Protocol (ARP) query message sent by the router, where the ARP query message is used to query whether the IP Address of the network device needs to be deleted.
In practical application, the processing module of the network device sets a mode in which the network device sends an IP address to the router according to the sleep instruction, and the PHY chip is in a remote wake-up mode through the SES, so that the PHY chip can wake up the network device in subsequent steps. The processing module of the network equipment can also send a power-off instruction to the SES, the power-off instruction is written into the register of the CPLD through the SES, and the CPLD supplies power to the SES every preset time, so that the network equipment enters a state to be awakened, and only the PHY chip of the network equipment and the CPLD supply power to operate.
It should be noted that, when the mode in which the network device sends the IP address to the router is the active mode, the CPLD supplies power to the SES at regular time, and if the mode is the passive mode, the SES also needs to supply power continuously to operate, so as to respond after receiving the ARP query message.
In step 202, the network device enters a state to be woken up according to the sleep command.
The state to be awakened may be a sleep state or a power-off state.
In step 203, the IP address of the network device is sent to the router while the network device is in the standby state.
In order to prevent the IP address of the network device from aging in the routing table entry of the router, the IP address of the network device is sent to the router according to the mode indicated by the dormancy instruction in the process that the network device is in the state to be awakened, so that the router refreshes the routing table entry, and the IP address of the network device is recorded in the refreshed routing table entry, thereby ensuring that the IP address of the network device cannot age.
Optionally, step 203 may be replaced by step 2031 or step 2032:
step 2031, every preset time, the network device sends an ARP message to the router.
When the mode indicated by the mode indication identifier in the sleep instruction received by the network equipment is the active mode, the network equipment sends an ARP message to the router every other preset time interval, wherein the ARP message comprises the IP address of the network equipment.
The preset time period is usually 20 minutes, and may also be other time periods, which is not limited in the embodiment of the present invention.
In addition, referring to table 1, the ARP packet sent by the network device may include not only the IP address of the network device, as shown in table 1, but also the MAC address of the network device, and hardware information and protocol information of the network device.
TABLE 1
Step 2032, generating an ARP response packet according to the ARP query packet, and sending the ARP response packet to the router.
When the mode indicated by the mode indication identifier in the sleep instruction received by the network device is the passive mode, the network device does not need to actively send the IP address to the router, and only needs to send the IP address of the network device to the router after receiving the ARP query message sent by the router.
It should be noted that each IP address recorded in the routing table entry has an aging time, and when the storage time of a certain IP address in the routing table entry reaches the aging time threshold, the routing table entry needs to delete the IP address. The aging duration threshold is usually 20 minutes, and may also be other durations, which is not limited in the embodiment of the present invention.
Correspondingly, when the storage time of the IP address of the network device in the routing table entry of the router reaches the aging time threshold, the router may first send an ARP query message to the network device, so as to determine whether the IP address of the network device needs to be deleted.
Therefore, the network device can receive the ARP query message sent by the router, generate an ARP response message according to the ARP query message, and finally send the ARP response message to the router, so that the router refreshes the routing table entry according to the ARP response message, and the storage duration of the IP address of the network device in the refreshed routing table entry begins to be recorded again, thereby ensuring that the IP address of the network device cannot be deleted from the routing table entry.
Wherein, the ARP response message includes the IP address of the network device.
In step 204, the router refreshes the routing table entry based on the received IP address of the network device.
After the network device is in the state to be awakened, the IP address of the network device is sent to the router in different modes, and after the router receives the IP address of the network device, the routing table entry can be refreshed according to the IP address of the network device, so that the storage duration of the IP address of the network device in the routing table entry is retimed, and the refreshed routing table entry continues to record the IP address of the network device.
The step of sending the IP address to the router by the network device is similar to the step 202, and is not described herein again.
For example, if the aging duration threshold of the routing table entry is 20 minutes, and the storage duration of the IP address of the network device in the routing table entry also reaches 20 minutes, the router needs to send an ARP query packet to the network device to determine whether the network device is still in the network and whether the IP address of the network device needs to be deleted. After receiving the ARP query message, the network equipment generates an ARP response message comprising the IP address of the network equipment, sends the ARP response message to the router, and the router refreshes the routing table entry according to the ARP response message, so that the storage duration of the IP address of the network equipment starts from 0 again.
In step 205, the remote management server sends a wake up message to the router.
When the network device is required to be in the power-on state again to work, the remote management server may generate a wake-up message and send the wake-up message to the router, so that the router forwards the wake-up message to the network device, and the network device is awakened from the state to be awakened.
The wake-up message is used to wake up the network device, and may be a User Data Protocol (UDP) message, and a magic packet message is encapsulated in the UDP message.
For example, referring to table 2, the data filled in the UDP Packet is a Magic Packet (english: Magic Packet) Packet, the Magic Packet is composed of 6 bytes of FF codes and 16 identical MAC addresses, and the 16 identical MAC addresses in the Magic Packet are the MAC addresses of the network device.
TABLE 2
In step 206, the router queries the routing table entry to obtain the IP address of the network device.
Referring to table 2, the UDP packet includes a source port and a destination port, and when the router forwards the wakeup packet to the network device, the destination port corresponding to the network device needs to be obtained, and the destination port corresponding to each network device corresponds to the IP address of the corresponding network device, so that the corresponding destination port can be searched according to the IP address of the network device, and the wakeup packet is sent to the network device.
Therefore, after receiving the wake-up packet, the router needs to search for an IP address matching the IP address in the routing table entry according to the IP address of the network device carried in the wake-up packet.
In step 207, the router forwards the wake-up packet to the network device according to the queried IP address.
After the router queries the IP address of the network device in the routing table entry, the router can obtain the destination port corresponding to the network device according to the IP address, and finally send the wake-up packet to the network device through the destination port, so that the network device is woken up.
In step 208, the network device wakes up the network device according to the received wake-up packet.
After the network device is in the state to be awakened, when the network device receives an awakening message which is generated by the remote management server and forwarded by the router, the network device can be awakened according to the awakening message.
Specifically, after the network device receives the wake-up packet, that is, after the network device receives the UDP packet, the network device parses the UDP packet to obtain a magic packet, and then identifies whether 16 identical MAC addresses carried by the magic packet are identical to the MAC address of the network device, and when the MAC address carried by the magic packet is identical to the MAC address of the network device, the network device may be woken up.
In practical application, in the process that the network device identifies whether the MAC address carried in the magic packet message is consistent with the MAC address of the network device, after the PHY chip acquires the FF code of 6 bytes as shown in table 2, the PHY chip triggers an action of identifying the MAC address, and then identifies whether the MAC address carried in the magic packet message is consistent with the MAC address of the network device.
When the PHY chip recognizes that the MAC address carried by the magic packet is consistent with the MAC address of the network device, the PHY chip may send a power-on instruction to the CPLD, so that the CPLD powers on the SES and the processing module according to the power-on instruction, thereby waking up the network device from a state to be woken up.
In step 209, the remote management server sends an acknowledgement message to the network device.
Wherein, the confirmation message is used for confirming whether the network equipment is awakened or not.
After the remote management server sends the wake-up message to the network device, it needs to determine whether the network device has been woken up, when the network device is woken up, the network device may execute corresponding work, and when the network device is not woken up, the remote management server may send the wake-up message to the network device again, so as to wake up the network device.
Therefore, after sending the wake-up message, the remote management server sends a confirmation message to the network device, so as to confirm whether the network device has been woken up.
In step 210, the network device generates a confirmation response message according to the confirmation message.
After the network device is awakened according to the awakening message and after receiving the confirmation message sent by the remote management server, a confirmation response message may be generated according to the confirmation message, where the confirmation response message is used to indicate that the network device has been awakened.
In step 211, the network device sends an acknowledgement message to the remote management server.
After the network device produces the acknowledgement message, the acknowledgement message can be sent to the remote management server, so that the remote management server knows that the network device is awakened, corresponding work can be executed, and the remote management server does not need to send the awakening message again.
It should be noted that, in the embodiment of the present invention, the remote management server is only used to control the network device to sleep and wake up the network device from the sleep state, but in practical applications, the remote management server may also control the network device to enter the shutdown state and wake up the network device from the shutdown state, and the process of controlling the network device to enter the shutdown state and wake up the network device by the remote management server is similar to the process of controlling the network device to enter the sleep state and wake up the network device, and is not described herein again.
In addition, the sequence of the steps of the remote wake-up method provided in the embodiment of the present invention may be appropriately adjusted, and the steps may also be increased or decreased according to the situation, and any method that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention shall be covered in the protection scope of the present invention, and therefore, the detailed description thereof is omitted.
In summary, according to the remote wake-up method provided in the embodiments of the present invention, after the network device is in the state to be woken up, the network device is woken up according to the wake-up packet received from the router, and the router can directly send the wake-up packet to the network device, and the wake-up packet can be sent to the network device without passing through the local management server, so that a local management server is not required to be disposed between the network device and the router, which avoids power consumption generated by the local management server, reduces power consumption of the remote wake-up system, and improves flexibility of the remote wake-up process.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
Fig. 3 is a schematic structural diagram of a remote wake-up apparatus 30 according to an embodiment of the present invention, and as shown in fig. 3, the remote wake-up apparatus 30 is applied to a network device of a remote wake-up system, where the remote wake-up system includes: a remote management server, a router and the network device, where the remote management server and the router are located in a wide area network, the network device is located in a local area network, and a routing table entry stored in the router records an internet protocol IP address of the network device, and the remote wake-up apparatus 30 includes: a first receiving module 301 and a wake-up module 302.
The first receiving module 301 is configured to receive, after the network device is in a to-be-woken state, a wake-up packet sent by the router, where the wake-up packet is used to wake up the network device, the wake-up packet is generated by the remote management server and sent to the router, the router queries the routing table entry to obtain an IP address of the network device, and then forwards the IP address to the network device according to the IP address, where the to-be-woken state is a sleep state or a power-off state.
The wake-up module 302 is configured to wake up the network device according to the wake-up packet.
In summary, the remote wake-up apparatus provided in the embodiments of the present invention receives a wake-up packet sent by a router after a network device is in a state to be woken up, and wakes up the network device according to the wake-up packet, the router can directly send the wake-up packet to the network device, and can send the wake-up packet to the network device without a local management server, so that a local management server is not required to be disposed between the network device and the router, power consumption of the local management server is avoided, power consumption of a remote wake-up system is reduced, and flexibility of a remote wake-up process is improved.
Optionally, referring to fig. 4, the apparatus further comprises: a first transmitting module 303.
The first sending module 303 is configured to send the IP address of the network device to the router, so that the router refreshes the routing table entry, and the refreshed routing table entry records the IP address of the network device.
Optionally, the first sending module 303 is further configured to send an address resolution protocol, ARP, packet to the router every preset time, where the ARP packet includes an IP address of the network device.
Optionally, the first sending module 303 is further configured to receive an ARP query message sent by the router, generate an ARP response message according to the ARP query message, and send the ARP response message to the router, so that the router refreshes the routing table entry according to the ARP response message, and the storage duration of the IP address of the network device in the refreshed routing table entry is recorded again.
The ARP query message is sent by the router to the network device when the storage time of the IP address of the network device recorded in the routing table entry reaches the aging time threshold, and is used to query whether the IP address of the network device needs to be deleted, and the ARP response message includes the IP address of the network device.
Optionally, referring to fig. 5, the apparatus further comprises: a second receiving module 304 and a state entry module 305.
The second receiving module 304 is configured to receive a sleep instruction sent by the remote management server, where the sleep instruction includes a mode indicator, where the mode indicator is used to indicate a mode in which the network device sends an IP address of the network device, and the mode is an active mode or a passive mode;
the state entering module 305 is configured to enter a to-be-awakened state according to the sleep instruction;
the first sending module 303 is further configured to send the IP address of the network device according to the mode indicated by the sleep instruction in the process that the network device is in the state to be woken up.
Optionally, referring to fig. 6, the apparatus further comprises: a third receiving module 306, a generating module 307 and a second sending module 308.
The third receiving module 306 is configured to receive a confirmation message sent by the remote management server, where the confirmation message is used to confirm whether the network device is awake;
the generating module 307 is configured to generate a confirmation response message according to the confirmation message, where the confirmation response message is used to indicate that the network device has been awakened;
the second sending module 308 is configured to send the acknowledgement message to the remote management server.
Optionally, the wake-up message is a user data protocol UDP message, and a magic packet message is encapsulated in the UDP message;
the wake-up module 302 is further configured to analyze the UDP packet to obtain the magic packet, identify whether a MAC address carried in the magic packet is consistent with an MAC address of the network device, and wake up the network device when the MAC address carried in the magic packet is consistent with the MAC address of the network device.
Optionally, the network device includes a physical layer PHY chip, a complex programmable logic device CPLD, a small computer standard interface device management SES, and a processing module;
the wake-up module 302 is further configured to identify whether the MAC address carried in the magic packet is consistent with the MAC address of the network device through the PHY chip, and send a power-on instruction to the CPLD through the PHY chip when the MAC address carried in the magic packet is consistent with the MAC address of the network device, so that the CPLD powers on the SES and the processing module according to the power-on instruction, so as to wake up the network device.
Fig. 7 is a schematic structural diagram of a remote wake-up apparatus 70 according to an embodiment of the present invention, and as shown in fig. 7, the remote wake-up apparatus 70 is applied to a router of a remote wake-up system, where the remote wake-up system includes: a remote management server, a network device and the router, where the remote management server and the router are located in a wide area network, the network device is located in a local area network, and a routing table entry stored in the router records an internet protocol IP address of the network device, and the remote wake-up apparatus 70 includes: a first receiving module 701, a querying module 702 and a forwarding module 703.
The first receiving module 701 is configured to receive a wake-up packet sent by the remote management server after the network device is in a to-be-woken state, where the wake-up packet is used to wake up the network device, the wake-up packet is generated by the remote management server, and the to-be-woken state is a sleep state or a power-off state;
the query module 702 is configured to query the routing table entry to obtain the IP address of the network device;
the forwarding module 703 is configured to forward the wake-up packet to the network device according to the IP address of the network device, so that the network device is woken up.
In summary, the remote wake-up apparatus provided in the embodiments of the present invention receives, through the router, a wake-up packet sent by the remote management server after the network device is in the state to be woken up, queries the routing table entry to obtain the IP address of the network device, and forwards the wake-up packet to the network device according to the IP address of the network device, so that the network device is woken up. The router can directly send the awakening message to the network equipment, the awakening message can be sent to the network equipment without a local management server, and the local management server is not required to be arranged between the network equipment and the router, so that the power consumption of the local management server is avoided, the power consumption of a remote awakening system is reduced, and the flexibility of a remote awakening process is improved.
Optionally, referring to fig. 8, the apparatus further comprises: a second receiving module 704 and a refresh module 705.
The second receiving module 704 is configured to receive the IP address of the network device sent by the network device;
the refreshing module 705 is configured to refresh the routing table entry, where the refreshed routing table entry records the IP address of the network device.
Optionally, the second receiving module 704 is further configured to receive an address resolution protocol, ARP, message sent by the network device every preset time period, where the ARP message includes an IP address of the network device.
Optionally, the second receiving module 704 is further configured to send an ARP query message to the network device when the storage duration of the IP address of the network device recorded in the routing table entry reaches an aging duration threshold, so that the network device generates an ARP response message according to the ARP query message, sends the ARP response message to the router, receives the ARP response message sent by the router, refreshes the routing table entry according to the ARP response message, and restarts the storage duration of the IP address of the network device in the refreshed routing table entry.
The ARP query message is used to query whether the IP address of the network device needs to be deleted, and the ARP response message includes the IP address of the network device.
Optionally, the wake-up message is a user data protocol UDP message, and a magic packet message is encapsulated in the UDP message.
Fig. 9 is a schematic structural diagram of a remote wake-up apparatus 90 according to an embodiment of the present invention, where the remote wake-up apparatus 90 is applied to the remote wake-up system shown in fig. 1 a. Referring to fig. 9, the remote wake-up device 90 includes: a receiver 901, a transmitter 902, a memory 903 and a processor 904, wherein the receiver 901, the transmitter 902 and the memory 903 are respectively connected with the processor 904.
The processor 904 may be a Central Processing Unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention. The processor 904 is configured to execute the program codes stored in the memory 903, so as to implement the relevant steps in the above embodiment of the remote wake-up method. Thus, the remote wake-up unit 90 may be a network device or a router of fig. 1a according to the executed program code.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the module described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (27)
1. A remote wake-up method for a network device of a remote wake-up system, the remote wake-up system comprising: the remote management server and the router are positioned in a wide area network, the network equipment is positioned in a local area network, the network equipment comprises a physical layer (PHY) chip and a Complex Programmable Logic Device (CPLD), and an Internet Protocol (IP) address of the network equipment is recorded in a routing table entry stored in the router;
the method comprises the following steps:
after the network device is in a state to be awakened, receiving an awakening message sent by the router, where the awakening message is used to awaken the network device, the awakening message is generated by the remote management server and sent to the router, the router queries the routing table entry to obtain the IP address of the network device, and then forwards the IP address to the network device, a magic packet message is encapsulated in the awakening message, the state to be awakened is a sleep state or a power-off state, and the network device is in the state to be awakened indicates that: only the PHY chip and the CPLD are powered to operate in the network equipment;
and when the PHY chip identifies that the MAC address carried by the magic packet in the awakening message is consistent with the MAC address of the network equipment, awakening the network equipment through the PHY chip and the CPLD.
2. The method according to claim 1, wherein before said receiving the wake-up packet sent by the router, the method further comprises:
and sending the IP address of the network equipment to the router, so that the router refreshes the routing table entry, and the refreshed routing table entry records the IP address of the network equipment.
3. The method of claim 2, wherein said sending the IP address of the network device to the router comprises:
and sending an Address Resolution Protocol (ARP) message to the router every other preset time, wherein the ARP message comprises an IP address of the network equipment.
4. The method of claim 2, wherein said sending the IP address of the network device to the router comprises:
receiving an ARP query message sent by the router, wherein the ARP query message is sent to the network equipment by the router when the storage time of the IP address of the network equipment recorded in the routing table entry reaches an aging time threshold, and is used for querying whether the IP address of the network equipment needs to be deleted;
generating an ARP response message according to the ARP query message, wherein the ARP response message comprises the IP address of the network equipment;
and sending the ARP response message to the router, so that the router refreshes the routing table entry according to the ARP response message, and the storage duration of the IP address of the network equipment in the refreshed routing table entry is recorded again.
5. The method of claim 2, wherein prior to said sending the IP address of the network device to the router, the method further comprises:
receiving a sleep instruction sent by the remote management server, wherein the sleep instruction comprises a mode indication identifier, the mode indication identifier is used for indicating a mode in which the network device sends an IP address of the network device, and the mode is an active mode or a passive mode;
entering a state to be awakened according to the sleep instruction;
the sending the IP address of the network device to the router includes:
and in the process that the network equipment is in a state to be awakened, sending the IP address of the network equipment according to the mode indicated by the dormancy instruction.
6. The method of claim 1, wherein after the waking the network device according to the wake packet, the method further comprises:
receiving a confirmation message sent by the remote management server, wherein the confirmation message is used for confirming whether the network equipment is awakened or not;
generating a confirmation response message according to the confirmation message, wherein the confirmation response message is used for indicating that the network equipment is awakened;
and sending the confirmation response message to the remote management server.
7. The method according to any of claims 1 to 6, wherein the wake-up message is a user data protocol, UDP, message, the method further comprising:
analyzing the UDP message to obtain the magic packet message;
and identifying whether the MAC address carried by the magic packet message is consistent with the MAC address of the network equipment or not through the PHY chip.
8. The method of claim 1, wherein the network device further comprises a small computer standard interface device management (SES) and processing module;
the waking up the network device through the PHY chip and the CPLD includes:
and sending a power-on instruction to the CPLD through the PHY chip, so that the CPLD powers on the SES and the processing module according to the power-on instruction, and awakening the network equipment.
9. A remote wake up method for a router of a remote wake up system, the remote wake up system comprising: the remote management server and the router are positioned in a wide area network, the network equipment is positioned in a local area network, the network equipment comprises a physical layer (PHY) chip and a Complex Programmable Logic Device (CPLD), and an Internet Protocol (IP) address of the network equipment is recorded in a routing table entry stored in the router;
the method comprises the following steps:
after the network device is in a state to be awakened, receiving an awakening message sent by the remote management server, where the awakening message is used to awaken the network device, the awakening message is generated by the remote management server, a magic packet message is encapsulated in the awakening message, the state to be awakened is a sleep state or a power-off state, and the state to be awakened of the network device is: only the PHY chip and the CPLD are powered to operate in the network equipment;
inquiring the routing table entry to obtain the IP address of the network equipment;
forwarding the wake-up message to the network device according to the IP address of the network device, so that the network device is awakened;
the PHY chip and the CPLD in the network device are configured to wake up the network device when the PHY chip identifies that a MAC address of media access control carried in a magic packet in the wake-up message is consistent with the MAC address of the network device.
10. The method according to claim 9, wherein before said receiving the wake-up message sent by the remote management server, the method further comprises:
receiving an IP address of the network equipment sent by the network equipment;
and refreshing the routing table entry, wherein the refreshed routing table entry records the IP address of the network equipment.
11. The method of claim 10, wherein the receiving the IP address of the network device sent by the network device comprises:
and receiving an Address Resolution Protocol (ARP) message sent by the network equipment every other preset time, wherein the ARP message comprises an IP address of the network equipment.
12. The method of claim 10, wherein the receiving the IP address of the network device sent by the network device comprises:
when the storage time length of the IP address of the network equipment recorded in the routing table item reaches an aging time length threshold value, sending an ARP query message to the network equipment so that the network equipment can generate an ARP response message according to the ARP query message and send the ARP response message to the router, wherein the ARP query message is used for querying whether the IP address of the network equipment needs to be deleted or not, and the ARP response message comprises the IP address of the network equipment;
receiving an ARP response message sent by the network equipment;
and refreshing the routing table entry according to the ARP response message, and re-timing the storage duration of the IP address of the network equipment in the refreshed routing table entry.
13. The method according to any of claims 9 to 12, wherein the wake-up message is a user data protocol, UDP, message.
14. A remote wake up apparatus for waking up a network device of a system remotely, the system comprising: the remote management server and the router are positioned in a wide area network, the network equipment is positioned in a local area network, the network equipment comprises a physical layer (PHY) chip and a Complex Programmable Logic Device (CPLD), and an Internet Protocol (IP) address of the network equipment is recorded in a routing table entry stored in the router;
the device comprises:
a first receiving module, configured to receive, after the network device is in a to-be-woken state, a wake-up packet sent by the router, where the wake-up packet is used to wake up the network device, the wake-up packet is generated by the remote management server and sent to the router, the router queries the routing table entry to obtain an IP address of the network device, and then forwards the IP address to the network device according to the IP address, a magic packet is encapsulated in the wake-up packet, the to-be-woken state is a sleep state or a power-off state, and the network device is in the to-be-woken state: only the PHY chip and the CPLD are powered to operate in the network equipment;
and the awakening module is used for awakening the network equipment through the PHY chip and the CPLD when the PHY chip identifies that the Media Access Control (MAC) address carried by the magic packet message in the awakening message is consistent with the MAC address of the network equipment.
15. The apparatus of claim 14, further comprising:
a first sending module, configured to send the IP address of the network device to the router, so that the router refreshes the routing table entry, where the refreshed routing table entry records the IP address of the network device.
16. The apparatus according to claim 15, wherein the first sending module is further configured to send an address resolution protocol, ARP, packet to the router every preset duration, where the ARP packet includes an IP address of the network device.
17. The apparatus according to claim 15, wherein the first sending module is further configured to receive an ARP query message sent by the router, generate an ARP response message according to the ARP query message, send the ARP response message to the router, enable the router to refresh the routing table entry according to the ARP response message, when the storage duration of the IP address of the network device in the refreshed routing table entry is recorded again,
when the storage time length of the IP address of the network equipment recorded in the routing table entry reaches the aging time length threshold value, the ARP query message is sent to the network equipment by the router and used for querying whether the IP address of the network equipment needs to be deleted, and the ARP response message comprises the IP address of the network equipment.
18. The apparatus of claim 15, further comprising:
a second receiving module, configured to receive a sleep instruction sent by the remote management server, where the sleep instruction includes a mode indication identifier, where the mode indication identifier is used to indicate a mode in which the network device sends an IP address of the network device, and the mode is an active mode or a passive mode;
the state entering module is used for entering a state to be awakened according to the sleep instruction;
the first sending module is further configured to send the IP address of the network device according to the mode indicated by the sleep instruction in the process that the network device is in the state to be woken up.
19. The apparatus of claim 14, further comprising:
a third receiving module, configured to receive a confirmation message sent by the remote management server, where the confirmation message is used to confirm whether the network device is awake;
a generating module, configured to generate a confirmation response message according to the confirmation message, where the confirmation response message is used to indicate that the network device has been awakened;
and the second sending module is used for sending the confirmation response message to the remote management server.
20. The apparatus according to any of claims 14 to 19, wherein the wake-up message is a user data protocol, UDP, message;
the awakening module is further configured to analyze the UDP packet to obtain the magic packet, and identify whether an MAC address carried in the magic packet is consistent with an MAC address of the network device through the PHY chip.
21. The apparatus of claim 14, wherein the network device further comprises a small computer standard interface device management (SES) and processing module;
the awakening module is further configured to send a power-on instruction to the CPLD through the PHY chip, so that the CPLD powers on the SES and the processing module according to the power-on instruction, so as to awaken the network device.
22. A remote wake up apparatus, for waking up a router of a system remotely, the system comprising: the remote management server and the router are positioned in a wide area network, the network equipment is positioned in a local area network, the network equipment comprises a physical layer (PHY) chip and a Complex Programmable Logic Device (CPLD), and an Internet Protocol (IP) address of the network equipment is recorded in a routing table entry stored in the router;
the device comprises:
a first receiving module, configured to receive a wake-up packet sent by the remote management server after the network device is in a to-be-woken state, where the wake-up packet is used to wake up the network device, the wake-up packet is generated by the remote management server, a magic packet is encapsulated in the wake-up packet, the to-be-woken state is a sleep state or a power-off state, and the network device is in the to-be-woken state: only the PHY chip and the CPLD are powered to operate in the network equipment;
the query module is used for querying the routing table item to obtain the IP address of the network equipment;
a forwarding module, configured to forward the wake-up packet to the network device according to the IP address of the network device, so that the network device is woken up;
the PHY chip and the CPLD in the network device are configured to wake up the network device when the PHY chip identifies that a MAC address of media access control carried in a magic packet in the wake-up message is consistent with the MAC address of the network device.
23. The apparatus of claim 22, further comprising:
a second receiving module, configured to receive the IP address of the network device sent by the network device;
and the refreshing module is used for refreshing the routing table entry, and the refreshed routing table entry records the IP address of the network equipment.
24. The apparatus according to claim 23, wherein the second receiving module is further configured to receive an address resolution protocol, ARP, packet sent by the network device every preset duration, where the ARP packet includes an IP address of the network device.
25. The apparatus according to claim 23, wherein the second receiving module is further configured to send an ARP query message to the network device when the storage duration of the IP address of the network device recorded in the routing table entry reaches an aging duration threshold, so that the network device generates an ARP response message according to the ARP query message, sends the ARP response message to the router, receives the ARP response message sent by the network device, refreshes the routing table entry according to the ARP response message, and keeps the storage duration of the IP address of the network device in the refreshed routing table entry anew,
the ARP query message is used for querying whether the IP address of the network equipment needs to be deleted, and the ARP response message comprises the IP address of the network equipment.
26. The apparatus according to any of claims 22 to 25, wherein the wake-up message is a user data protocol, UDP, message.
27. A remote wake-up system, the system comprising: the remote management server and the router are located in a wide area network, the network equipment is located in a local area network, the network equipment comprises a physical layer (PHY) chip and a Complex Programmable Logic Device (CPLD), and an Internet Protocol (IP) address of the network equipment is recorded in a routing table entry stored in the router;
the remote management server is used for generating a wake-up message and sending the wake-up message to the router, the wake-up message is used for waking up the network equipment, and a magic packet message is packaged in the wake-up message;
the router is used for receiving the wake-up message sent by the remote management server, inquiring the routing table entry to obtain the IP address of the network equipment, and forwarding the wake-up message to the network equipment according to the IP address of the network equipment;
the network device is configured to receive a wake-up packet sent by the router in a state to be woken up, and when the PHY chip identifies that a MAC address of a magic packet carried in the wake-up packet is consistent with an MAC address of the network device, wake up the network device through the PHY chip and the CPLD, where the state to be woken up is a sleep state or a power-off state, and the network device is in the state to be woken up means that: and only the PHY chip and the CPLD are powered to operate in the network equipment.
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| CN109787778A (en) * | 2019-01-02 | 2019-05-21 | 紫光华山信息技术有限公司 | A kind of awakening method and device of equipment |
| CN112311560B (en) * | 2019-07-24 | 2022-04-15 | 技嘉科技股份有限公司 | Remote wakeup method and remote wakeup system |
| CN112448822B (en) * | 2019-09-02 | 2022-03-01 | 华为云计算技术有限公司 | Cross-network awakening method and related equipment |
| CN112530122B (en) * | 2019-09-17 | 2023-11-10 | 华为技术有限公司 | Power supply control method, device and system |
| CN110989431B (en) * | 2019-11-26 | 2021-06-11 | 福建省昊彤网络科技有限公司 | Remote power utilization control system under condition of actively closing network |
| CN112566083A (en) * | 2020-11-19 | 2021-03-26 | 歌尔光学科技有限公司 | Terminal device awakening method, terminal device and storage medium |
| CN113489774B (en) * | 2021-06-30 | 2024-03-12 | 宁波星巡智能科技有限公司 | Video playing method, wake-up method, device, equipment and medium for battery camera |
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