CN115529220A - Communication gateway disaster tolerance system and method - Google Patents
Communication gateway disaster tolerance system and method Download PDFInfo
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- H—ELECTRICITY
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
Abstract
The application discloses a communication gateway disaster recovery system and a method. The disaster recovery system comprises: the first gateway is respectively in communication connection with the local network and the base station; the first gateway is used for forwarding the user data packet from the base station to a local network or the Internet; the second gateway is connected with the first gateway in series; the second gateway is respectively in communication connection with a local network and the Internet; the first gateway and the second gateway are also internally provided with passive optical bypass protectors; the second gateway is used for starting a passive optical bypass protector built in the first gateway and forwarding the user data packet from the base station to a local network or the Internet under the condition that the first gateway works abnormally. By adopting the technical scheme provided by the application, the first gateway and the second gateway are connected in series, the disaster recovery backup of the communication gateway can be realized under the condition that external fault detection equipment is not added and extra time delay is not added, and compared with a parallel backup mode, the network structure is simpler and the risk points are fewer.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communication gateway disaster recovery system and method.
Background
The communication gateways are generally deployed at positions close to the user terminals, and the nodes are distributed and large in number. For example, in an edge computing scenario, edge computing gateways are dispersed and large in number, and each edge computing gateway node cannot be monitored and maintained manually. Therefore, the communication gateway is generally designed with a disaster recovery backup scheme, so that the service capability of the network is restored and the user experience is guaranteed through the disaster recovery backup scheme under the condition that the communication gateway fails.
The traditional disaster recovery backup scheme for the communication gateway generally adopts a parallel connection mode, and the communication gateway is connected with a base station, a switch, a transmission network and a core network in parallel for double backup.
For example, in an edge computing scenario, a traditional disaster recovery backup scheme in a parallel connection mode may determine whether a primary edge computing gateway is working normally in real time through heartbeat detection, and when a switch detects that a failure of the primary edge computing gateway is unavailable, the switch switches to a backup gateway to continue providing services, and triggers an equipment alarm prompt. In the disaster recovery backup scheme of the traditional parallel mode, switching equipment is introduced for fault detection and link switching, but the switching equipment itself has a fault risk and has insufficient reliability.
Disclosure of Invention
The embodiment of the application aims to provide a communication gateway disaster recovery system and a communication gateway disaster recovery method, which can solve the technical problem that a disaster recovery backup scheme in a parallel connection mode in the prior art is not reliable enough.
The technical scheme of the application is as follows:
in a first aspect, a communication gateway disaster recovery system is provided, including:
the first gateway is respectively in communication connection with the local network and the base station; the first gateway is used for forwarding the user data packet from the base station to a local network or the Internet;
the second gateway is connected with the first gateway in series; the second gateway is respectively in communication connection with a local network and the Internet;
the first gateway and the second gateway are also internally provided with optical bypass protectors;
the second gateway is used for starting the built-in optical bypass protector in the first gateway and forwarding the user data packet from the base station to the local network or the internet under the condition that the first gateway works abnormally.
In some embodiments, the first gateway and the second gateway are further connected by a heartbeat line; the heartbeat line is used for monitoring the working state of the first gateway and the second gateway mutually.
In some embodiments, the second gateway is connected to the internet through a transport network and a core network.
In some embodiments, a firewall is disposed between the internet and the core network.
In some embodiments, a firewall is disposed between the local network and the first gateway and/or the second gateway.
In a second aspect, a communication gateway disaster recovery method is provided, which is applied to the disaster recovery system in the first aspect, and the method includes:
the second gateway receives the target data packet;
the second gateway forwards the target data packet to the internet under the condition that the target data packet does not include the analysis result from the first gateway or the analysis result indicates that the network to be accessed by the user data packet is a local network, an
Starting an optical bypass protector built in a first gateway;
and the analysis result is obtained by the first gateway through analyzing the user data packet from the base station.
In some embodiments, in the case that the parsing result indicates that the network to which the user data packet is to be accessed is a non-local network, the second gateway forwards the user data packet to the internet.
In some embodiments, before the second gateway receives the destination data packet, the method further comprises:
a first gateway receives a user data packet from a base station;
the first gateway analyzes the user data packet to obtain an analysis result;
the first gateway obtains a target data packet based on the analysis result and the user data packet;
under the condition that the analysis result indicates that the network to be accessed by the user data packet is a local network, the first gateway forwards the target data packet to the local network;
and under the condition that the analysis result indicates that the network to be accessed by the user data packet is a non-local network, the first gateway forwards the target data packet to the second gateway.
In some embodiments, after the optical bypass protector built in the first gateway is started, the method further comprises:
and sending alarm information to remind operation and maintenance personnel to maintain the first gateway.
In some embodiments, the first gateway is connected to the second gateway through a heartbeat line, and the heartbeat line is used for monitoring the working state of the first gateway and the second gateway mutually;
under the condition that the first gateway monitors that the working state of the second gateway is abnormal, before the second gateway receives the target data packet, the method further comprises the following steps:
activating an optical bypass protector built into the first gateway, and
and sending alarm information to remind operation and maintenance personnel to maintain the second gateway.
In some embodiments, in a case that the operating statuses of the first gateway and the second gateway are both abnormal, the method further includes:
and starting the optical bypass protector built in the first gateway and the optical bypass protector built in the second gateway.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
according to the communication gateway disaster recovery system provided by the embodiment of the application, the first gateway and the second gateway are connected in series, and under the condition that external fault detection equipment (such as a switch) is not added and extra time delay is not added, the second gateway can start the optical bypass protector built in the first gateway under the condition that the first gateway works abnormally and forward a user data packet from a base station to a local network or the internet, so that disaster recovery backup of the communication gateway is realized; compared with a parallel backup mode, the network structure is simpler, the risk points are fewer, and the double protection of the network is really realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application and are not to be construed as limiting the application.
Fig. 1 is a schematic diagram of a disaster recovery backup networking scheme in a parallel connection manner in an embodiment of the present application;
fig. 2 is a first schematic structural diagram of a communication gateway disaster recovery system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a communication gateway disaster recovery system according to an embodiment of the present application;
fig. 4 is a schematic flowchart of a communication gateway disaster recovery method according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. The implementations described in the following exemplary examples do not represent all implementations consistent with the present application. Rather, they are merely examples consistent with certain aspects of the present application, as detailed in the appended claims.
Based on the background art, in the disaster recovery backup scheme of the parallel connection mode in the prior art, switching equipment is introduced to perform fault detection and link switching, but the switching equipment itself also has a risk of fault and is insufficient in reliability.
The following specifically describes a disaster recovery backup networking scheme in a parallel manner, taking a 5G edge computing scenario as an example. Please refer to fig. 1, which is a schematic diagram of a disaster recovery backup networking scheme in parallel.
5G Edge Computing (MEC) provides a powerful cloud-network integrated infrastructure, facilitating migration of application services towards the network Edge. Because the edge computing application scene is wide, the edge computing gateway is deployed at a position close to a user side, and the distributed nodes are dispersed and large in number, and each deployed edge computing gateway node cannot be monitored and maintained by manpower for 24 hours. In order to ensure that user experience is not affected in the event of an edge computing gateway failure, a network protection mechanism needs to be employed to recover the service capabilities of the network. The traditional backup scheme is a parallel connection mode, and the edge computing gateway, the base station and the switch are connected in parallel for double backup. As shown in fig. 1, a main gateway 101 and a standby gateway 102 are connected in parallel through a switch 103, the switch is further connected to a base station 103 and the internet 105, the main gateway 101 and the standby gateway 102 are both connected to a local network 104, the main gateway 101, the standby gateway 102 and the switch 103 determine whether the main gateway is working normally in real time through heartbeat detection, and when the switch 103 detects that the main gateway 101 is unavailable due to failure, the main gateway is switched to the standby gateway 102 to continue providing services, and an alarm prompt of a device is triggered.
The traditional edge computing gateway deployment backup mode has the defects that a new risk point is introduced while switching equipment is introduced to carry out fault detection and link switching through a parallel double backup mode, the cost is high, the structure is complex, and the reliability is insufficient.
Based on the above discovery, embodiments of the present application provide a communication gateway disaster recovery system and method, which implement a backup mechanism for connecting edge computing gateways in series without introducing new devices. The technical scheme provided by the embodiment of the application can ensure that the main gateway is quickly switched to the standby gateway to continue providing the service when the failure fails to provide the service normally, and the normal service access requirement of the user is kept. And meanwhile, when both the main gateway and the standby gateway are in failure, an escape mechanism is arranged to automatically jump data transmission to the standby link for accessing the services of the public network and the local network.
The communication gateway disaster recovery system and method provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 2 shows a schematic diagram of a communication gateway disaster recovery system according to an embodiment of the present application.
As shown in fig. 2, the disaster recovery system may include:
the first gateway 110 is in communication connection with the local network 130 and the base station 140 respectively; the first gateway 110 is used for forwarding the user data packet from the base station 130 to the local network 120 or the internet 140;
the second gateway 120 is connected in series with the first gateway 110. The second gateway 120 is respectively connected with the local network 130 and the internet 150 in a communication way; the second gateway 150 is configured to start an optical bypass protector built in the first gateway 110 and forward the user data packet from the base station 130 to the local network 120 or the internet 140 in case that the first gateway 110 is abnormally operated;
the first gateway 110 and the second gateway 120 also have optical bypass protectors built in.
In the above embodiments, the Gateway (Gateway) is also called an internetwork connector and a protocol converter. The gateway realizes network interconnection above a network layer, is a complex network interconnection device and is only used for interconnection of two networks with different high-level protocols. The gateway can be used for interconnection of both wide area networks and local area networks. A gateway is a computer system or device that acts as a switch-operative. The gateway is a translator used between two systems that differ in communication protocol, data format or language, or even in an entirely different architecture. Instead of the bridge simply communicating the information, the gateway repackages the received information to accommodate the needs of the destination system.
An Optical Bypass Protector (OBP), also called an Optical Bypass Protection system, is an intelligent switching system which is applied to the field of Optical fiber communication and can automatically Bypass a failed network node, can automatically identify the power supply state and the signal output state of the network node, and can perform instantaneous switching of a light path when the node fails, so that the network node can be prevented from being blocked completely, and the system can be kept normally connected.
According to the communication gateway disaster recovery system provided by the embodiment of the application, two gateways with built-in optical bypass protectors are connected in series. When normal, the first gateway provides service. When the second gateway detects that the first gateway works abnormally, the optical bypass protector is instructed to switch the optical path of the first gateway to the second gateway, and meanwhile, the second gateway starts to bear the work of the first gateway, so that the first gateway is switched to the second gateway when the first gateway breaks down, namely, the disaster recovery function of the communication gateway system is realized.
According to the communication gateway disaster recovery system provided by the embodiment of the application, the system disaster recovery function under the condition that the two gateways are connected in series is realized through the optical bypass protectors arranged in the first gateway and the second gateway, and third-party equipment such as a switch is not introduced, so that the network structure is simpler compared with a parallel backup mode, and the safety of the disaster recovery system is improved.
Based on the communication gateway disaster recovery system provided in the foregoing embodiment, in order to improve the transmission efficiency and security of the entire network system, as another embodiment of the present application, another implementation manner of the communication gateway disaster recovery system is also provided. In the communication gateway disaster recovery system provided by the embodiment, other transmission networks and network security systems may be further provided on the communication link between the communication gateway and the local network 120 or the internet 140. See in particular fig. 3.
Fig. 3 shows a schematic diagram of another communication gateway disaster recovery system provided in this embodiment, and compared with the disaster recovery system shown in fig. 2, the disaster recovery system shown in fig. 3 may further include a transmission network 160 and a core network 170.
In some embodiments, as shown in fig. 3, the second gateway 120 may be connected to the internet 150 through a transport network 160 and a core network 170.
The disaster recovery mode of the embodiment of the application is "hot backup disaster recovery", and the disaster recovery principle is as follows: the two gateway devices independently activate the working mode, and only one server operates at the same time. When the user plane data packet passes through the first gateway 110, the first gateway 110 performs resolution according to the destination IP address of the user data packet to obtain a resolution result. If the analysis result shows that the destination IP address of the user data packet is the local address, the user data packet is directly forwarded to the local network 130; if the analysis result shows that the destination IP address of the user data packet is not the local address, the user data packet is forwarded to the second gateway 120, and the second gateway 120 directly transmits the user data packet to the internet 150 without processing.
When the second gateway 120 detects that the destination IP address of the user data packet forwarded by the first gateway 110 is a local address, that is, the local user data in the first gateway is not shunted, that is, the first gateway 110 fails, at this time, the second gateway automatically starts the shunting function, parses the local service data that is not shunted, that is, the user data packet, and forwards the local service data to the local network 130 or the internet 150, respectively, according to the parsing result, thereby actually implementing the dual backup of the edge technology network, and thus ensuring the normal operation of the entire network system.
In some embodiments, a firewall may be further added in the communication gateway disaster recovery system, so as to further improve the security of the disaster recovery system and ensure the security of the communication network, as shown in fig. 3, the firewall may be disposed between the internet 150 and the core network 170.
In some embodiments, a firewall may also be disposed between the local network 130 and the first gateway 110 and/or the second gateway 120.
According to the communication gateway disaster recovery system provided by the embodiment of the application, the firewall is required to be arranged before the user data packet enters the local network or the core network, the safety of the communication gateway system can be improved by adding the firewall, and the probability that the communication gateway system is broken down due to malicious attack is reduced.
Based on the communication gateway disaster recovery system provided in the foregoing embodiment, in order to implement mutual disaster recovery backup between the first gateway and the second gateway, the first gateway may also monitor the operating state of the second gateway. In the communication gateway disaster recovery system provided in the embodiment of the present application, a heartbeat line may be set between the first gateway and the second gateway.
In some embodiments, on the basis of the disaster recovery system shown in fig. 2, the first gateway 110 and the second gateway 150 may further be connected through a heartbeat line, where the heartbeat line is used for the first gateway 110 and the second gateway 120 to monitor the working state of each other.
In the above embodiments, the heartbeat line refers to a network cable for connecting two servers a and B. The heartbeat line is used for realizing the function of heartbeat detection, and the principle of the heartbeat detection is as follows: in two servers A and B, A is a working machine, B is a backup machine, and the working machine and the backup machine are connected through a central jumper. Two network cards are generally configured on the server, and one of the two network cards is specially used for communication between two servers (nodes). And software installed on the server monitors the running state of the other party in real time through the heartbeat wire. Once the system fails due to various hardware failures, such as power failure, failure of main components, or failure of a boot disk, the host a that is working may be reflected to another host that is backup for each other, and the host B may immediately put into operation. Therefore, the normal operation of the network can be ensured to the maximum extent.
In some examples, a jumper may be disposed in the disaster recovery system shown in fig. 3 to connect the first gateway 110 and the second gateway 120 and enable them to monitor the operating status of each other.
In this disaster recovery system, the first gateway 110, which is a main working machine, is monitored by software through a network cable connecting the first gateway 110 and the second gateway 120 via a heartbeat line. The backup machine, i.e. the second gateway 120, is immediately put into use once the working machine is found to be out of service for some reason, so as to ensure the smoothness of the network and the normal operation of the service.
The disaster recovery mode in the embodiment with the jumper wire is "cold backup disaster recovery", and the disaster recovery principle is as follows: as shown in fig. 3, two gateways connected in series are deployed between the base station 140 and the transport network 160 and the core network 170, wherein the first gateway 110 is a main operating machine, and the second gateway 120 is a backup machine, which are connected by a jumper. Two network cards are arranged on the gateways, wherein one network card is specially used for communication between two gateways (nodes). And software installed on the gateway server monitors the running state of the other party in real time through the heartbeat wire. Once the system fails due to various hardware failures, such as power failure, failure of main components, or failure of a boot disk, in the first gateway 110 of the working primary working machine, the system is reflected to another host machine that is a backup of each other through the heartbeat line 180, and the second gateway 120 of the backup machine can immediately put into operation and send out a monitoring alarm indication to notify maintenance personnel of immediate replacement. Therefore, the normal operation of the edge computing network can be ensured to the maximum extent.
According to the communication gateway disaster recovery system provided by the embodiment of the application, the jumper wire is arranged between the first gateway and the second gateway, so that cold backup disaster recovery of the first gateway and the second gateway is realized, namely, the standby gateway only needs to start a shunting function when the first gateway breaks down, and does not need to be in a standby state at any time. In the cold backup disaster recovery mode, the second gateway can monitor the working state of the first gateway, and the first gateway can monitor the working state of the second gateway, so that the mutual monitoring disaster recovery function of the two gateways is realized, and the service life of the second gateway is prolonged while the disaster recovery function of the communication gateway system is realized.
Based on the same inventive concept, the embodiment of the application also provides a communication gateway disaster recovery method.
Fig. 4 shows a communication gateway disaster recovery method provided in the embodiment of the present application, which is applied to the disaster recovery system provided in each embodiment of the first aspect of the present application, and as shown in fig. 4, the communication gateway disaster recovery method may include steps S410 to S430.
In step S410, the second gateway receives the destination data packet.
A destination data packet, which may be a data packet sent by the user terminal to the gateway through the base station in the embodiment of the first aspect. Under the condition that the first gateway is normal, the data packet can be a user data packet processed by the first gateway; in the case that the first gateway is abnormal, the data packet may be a user data packet that is not processed by the first gateway.
Step S420, when the target data packet does not include the parsing result from the first gateway or the parsing result indicates that the network to be accessed by the user data packet is a local network, the second gateway forwards the target data packet to the internet.
The parsing result, that is, the parsing result obtained by the first gateway by parsing the user data packet from the base station in the first aspect of the embodiment.
Step S430, starting the optical bypass protector built in the first gateway.
And starting the built-in optical bypass protector in the first gateway, and simultaneously, the second gateway starts to take over the work of the first gateway.
In some embodiments, in the case that the parsing result indicates that the network to be accessed by the user data packet is a non-local network, the second gateway forwards the user data packet to the internet.
In the disaster recovery system according to the first aspect of the embodiment, when the first gateway is in a normal operating state, the target packet received by the second gateway should include the content analyzed by the first gateway, and at this time, if the target IP address of the user packet is a local network, the user packet is not forwarded to the internet; if the destination IP address of the user data packet is the internet, the user data packet is forwarded to the second gateway. Therefore, if the analysis result in the target data packet received by the second gateway indicates that the network to be accessed by the user data packet is a non-local network, it can be determined that the working state of the first gateway is normal, and the second gateway does not need to process the data.
In some embodiments, before the second gateway receives the destination data packet, the first gateway may further process the data packet to generate the destination data packet. Based on this, the communication gateway disaster recovery method may further include steps S440 to S480.
Step S440, before the second gateway receives the target data packet, the first gateway receives the user data packet from the base station;
step S450, the first gateway analyzes the user data packet to obtain an analysis result;
step S460, the first gateway obtains a target data packet based on the analysis result and the user data packet;
step S470, under the condition that the analysis result indicates that the network to be accessed by the user data packet is the local network, the first gateway forwards the target data packet to the local network;
in step S480, under the condition that the analysis result indicates that the network to be accessed by the user data packet is a non-local network, the first gateway forwards the target data packet to the second gateway.
In some embodiments, step S430 may specifically include steps S431-S432.
Step S431, starting an optical bypass protector built in the first gateway;
and step S432, sending out alarm information to remind operation and maintenance personnel to maintain the first gateway.
In some embodiments, the first gateway is connected to the second gateway through a heartbeat line, and the heartbeat line is used for mutually monitoring the working state of the first gateway and the second gateway.
Under the condition that the first gateway monitors that the working state of the second gateway is abnormal and before the second gateway receives the target data packet, the communication gateway disaster recovery method may further include:
activating an optical bypass protector built in the first gateway, and
and sending alarm information to remind operation and maintenance personnel to maintain the second gateway.
In some embodiments, in a case that both the first gateway and the second gateway are in an abnormal operating state, the communication gateway disaster recovery method may further include:
and starting the optical bypass protector built in the first gateway and the optical bypass protector built in the second gateway.
The communication gateway disaster recovery method provided by the embodiment of the application has an escape mechanism, and when the first gateway and the second gateway simultaneously fail, the communication gateway automatically jumps to a built-in OBP direct link to the Internet, so that link switching is realized to ensure that services are normal.
The communication gateway disaster recovery system and the method provided by the embodiment of the application have the advantages that the external fault detection equipment (such as a switch) is not added independently, and the additional time delay is not added, compared with a parallel backup mode, the network structure is simpler, the cost is lower, and the double protection of the network is really realized.
Secondly, in an actual network environment, the probability that a plurality of network devices simultaneously fail is very low, but the edge computing gateway built-in OBP bypass detection escape mechanism provided by the embodiment of the application automatically switches links, so that the problem that the user perception is influenced by simultaneous failure of the devices can be effectively solved.
Finally, the technical scheme provided by the embodiment of the application is not only suitable for the mobile edge computing gateway system, but also suitable for all communication facility gateway systems. The technical scheme provided by the embodiment of the application ensures the low-delay shunt forwarding of the edge computing gateway system and improves the operation reliability and disaster tolerance capability of the gateway equipment.
It is to be understood that the present application is not limited to the particular arrangements and instrumentalities described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps, after comprehending the spirit of the present application.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present application are described above in terms of flowchart illustrations and/or block diagrams of methods, systems, and/or methods according to embodiments of the application. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As described above, only the specific embodiments of the present application are provided, and 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 module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.
Claims (11)
1. A communication gateway disaster recovery system, comprising:
the first gateway is respectively in communication connection with a local network and a base station; the first gateway is used for forwarding the user data packet from the base station to a local network or the Internet;
a second gateway connected in series with the first gateway; the second gateway is respectively in communication connection with a local network and the Internet;
the first gateway and the second gateway are also internally provided with optical bypass protectors;
and the second gateway is used for starting the built-in optical bypass protector in the first gateway and forwarding the user data packet from the base station to a local network or the Internet under the condition that the first gateway works abnormally.
2. The disaster recovery system according to claim 1, wherein said first gateway and said second gateway are further connected by a heartbeat line; the heartbeat line is used for monitoring the working state of the first gateway and the second gateway mutually.
3. The disaster recovery system according to claim 1, wherein said second gateway is connected to the internet via a transport network and a core network.
4. The disaster recovery system of claim 3, wherein a firewall is disposed between said internet and said core network.
5. The disaster recovery system according to claim 1, wherein a firewall is disposed between the local network and the first gateway and/or the second gateway.
6. A communication gateway disaster recovery method applied to the disaster recovery system of claim 1, the method comprising:
the second gateway receives the target data packet;
the second gateway forwards the target data packet to the internet under the condition that the target data packet does not include the analysis result from the first gateway or the analysis result indicates that the network to be accessed by the user data packet is a local network, an
Starting an optical bypass protector built in the first gateway;
and the analysis result is obtained by the first gateway through analyzing the user data packet from the base station.
7. The method of claim 6, wherein the second gateway forwards the user packet to the Internet if the parsing result indicates that the network to which the user packet is to be accessed is a non-local network.
8. The method of claim 6, wherein before the second gateway receives the destination data packet, the method further comprises:
a first gateway receives a user data packet from a base station;
the first gateway analyzes the user data packet to obtain an analysis result;
the first gateway obtains a target data packet based on the analysis result and the user data packet;
under the condition that the analysis result indicates that the network to be accessed by the user data packet is a local network, the first gateway forwards the target data packet to the local network;
and under the condition that the analysis result indicates that the network to be accessed by the user data packet is a non-local network, the first gateway forwards the target data packet to the second gateway.
9. The method of claim 6, wherein after the activating the optical bypass protector built in the first gateway, the method further comprises:
and sending alarm information to remind operation and maintenance personnel to maintain the first gateway.
10. The method according to any one of claims 6-9, wherein the first gateway is connected to the second gateway via a heartbeat line, the heartbeat line being used for the first gateway and the second gateway to mutually monitor the operating status;
under the condition that the first gateway monitors that the working state of the second gateway is abnormal, before the second gateway receives a target data packet, the method further comprises the following steps:
activating an optical bypass protector built into the first gateway, an
And sending alarm information to remind operation and maintenance personnel to maintain the second gateway.
11. The method according to claim 10, wherein in case that the operating statuses of the first gateway and the second gateway are both abnormal, the method further comprises:
and starting the optical bypass protector built in the first gateway and the optical bypass protector built in the second gateway.
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