CN115529220B - Disaster recovery system and method for communication gateway - Google Patents
Disaster recovery system and method for communication gateway Download PDFInfo
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- CN115529220B CN115529220B CN202110639451.XA CN202110639451A CN115529220B CN 115529220 B CN115529220 B CN 115529220B CN 202110639451 A CN202110639451 A CN 202110639451A CN 115529220 B CN115529220 B CN 115529220B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- 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
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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Abstract
The application discloses a disaster recovery system and a disaster recovery method for a communication gateway. 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 a passive optical bypass protector; the second gateway is used for starting a passive optical bypass protector built in the first gateway under the condition that the first gateway works abnormally, and forwarding user data packets from the base station to a local network or the Internet. By adopting the technical scheme provided by the application, the first gateway and the second gateway are connected in series, so that disaster recovery backup of the communication gateway can be realized under the condition that external fault detection equipment is not added and additional time delay is not newly added, and compared with a parallel backup mode, the network structure is simpler and the risk points are fewer.
Description
Technical Field
The application relates to the technical field of communication, in particular to a disaster recovery system and method of a communication gateway.
Background
The communication gateway is generally deployed near the user end, and the nodes are distributed and the number is large. For example, in an edge computing scenario, edge computing gateways are more decentralized and numerous, and each edge computing gateway node cannot be manually monitored and maintained. Therefore, the communication gateway is generally designed with a disaster recovery backup scheme, so that the service capability of the network is recovered and the user experience is ensured through the disaster recovery backup scheme under the condition of communication gateway faults.
The conventional disaster recovery backup scheme of the communication gateway generally adopts a parallel connection mode to connect the communication gateway with the base station, the switch, the transmission network and the core network in parallel for double backup.
For example, in an edge computing scene, a disaster recovery backup scheme of a traditional parallel mode can judge whether a main edge computing gateway works normally or not in real time through heartbeat detection, and when a switch detects that the main edge computing gateway fails to be available, the switch is switched to a standby gateway to continue providing services, and meanwhile, an equipment alarm prompt is triggered. In the conventional disaster recovery backup scheme, switching equipment is introduced to perform fault detection and link switching, but the switching equipment also has fault risks and 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 of insufficient reliability of a disaster recovery backup scheme in a parallel connection mode in the prior art.
The technical scheme of the application is as follows:
In a first aspect, a disaster recovery system for a communication gateway 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 an optical bypass protector;
The second gateway is used for starting an optical bypass protector built in the first gateway under the condition that the first gateway works abnormally, and forwarding a user data packet from the base station to a local network or the Internet.
In some embodiments, the first gateway and the second gateway are also connected by a heartbeat line; the jumper wire is used for mutually monitoring the working states of the first gateway and the second gateway.
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 provided between the internet and the core network.
In some embodiments, a firewall is provided between the local network and the first gateway and/or the second gateway.
In a second aspect, a disaster recovery method for a communication gateway 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;
In the case that 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, and
Starting an optical bypass protector built in the first gateway;
The analysis result is obtained by analyzing the user data packet from the base station by the first gateway.
In some embodiments, the second gateway forwards the user data packet to the internet in case the parsing result indicates that the network to be accessed by the user data packet is a non-local network.
In some embodiments, before the second gateway receives the target data packet, the method further comprises:
the 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;
If 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 if 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 into the first gateway is started, the method further comprises:
and 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, the heartbeat line being used to monitor the working state of the first gateway and the second gateway with respect to each other;
before the second gateway receives the target data packet under the condition that the first gateway monitors that the working state of the second gateway is abnormal, the method further comprises the following steps:
Starting an optical bypass protector built in the first gateway, and
And sending out alarm information to remind operation and maintenance personnel to maintain the second gateway.
In some embodiments, in the case that the working states of the first gateway and the second gateway are both abnormal, the method further includes:
And starting an optical bypass protector built in the first gateway and an 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, so that the second gateway can start the built-in optical bypass protector in the first gateway and forward the user data packet from the base station to the local network or the Internet under the condition that external fault detection equipment (such as a switch) is not added and additional time delay is not newly added, thereby realizing disaster recovery backup of the communication gateway; compared with a parallel backup mode, the network structure is simpler, the risk points are fewer, and the dual protection of the network is truly 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 as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application and do not constitute a undue limitation on the application.
FIG. 1 is a schematic diagram of a disaster recovery backup networking scheme in parallel according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a disaster recovery system of a communication gateway according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a disaster recovery system of a communication gateway according to an embodiment of the present application;
fig. 4 is a flow chart of a disaster recovery method for a communication gateway according to an embodiment of the present application.
Detailed Description
In order to enable a person skilled in the art to better understand the technical solutions of the present application, the technical solutions of 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 particular embodiments described herein are meant to be illustrative of the application only and not 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 application by showing examples of the application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of implementations consistent with aspects of the application as set forth in the following claims.
Based on the background technology, in the disaster recovery backup scheme of the parallel mode in the prior art, the switching equipment is introduced to perform fault detection and link switching, but the switching equipment also has the risk of fault, and the reliability is insufficient.
The disaster recovery backup networking scheme in a parallel mode is specifically described below by taking a 5G edge computing scene as an example. Please refer to the schematic diagram of the disaster recovery backup networking scheme in the parallel manner of fig. 1.
5G edge Computing (MEC) provides a powerful cloud network integration infrastructure that facilitates application service migration to network edges. Because the edge computing application scene is wide, the edge computing gateway is deployed at a position close to the user side, and the distributed nodes are distributed and have a large number, and each deployed edge computing gateway node cannot be monitored and maintained manually for 24 hours. In order to ensure that the user experience is not affected in the event of failure of the edge computing gateway, a network protection mechanism is required to restore the service capability of the network. The traditional backup scheme is a parallel mode, and the edge computing gateway is connected with the base station and the switch 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 also connected with a base station 103 and the internet 105 respectively, the main gateway 101 and the standby gateway 102 are both connected with a local network 104, the main gateway 101, the standby gateway 102 and the switch 103 judge whether the main gateway works normally in real time through heartbeat detection, and when the switch 103 detects that the main gateway 101 fails to be available, the main gateway is switched to the standby gateway 102 to continue providing services, and meanwhile, an equipment alarm prompt is triggered.
The traditional edge computing gateway deployment backup mode has the defects that a new risk point is introduced when the switching equipment is introduced to perform fault detection and link switching through the parallel double backup mode, and the cost is high, the structure is complex and the reliability is insufficient.
Based on the above findings, the embodiment of the application provides a communication gateway disaster recovery system and a method, which realize a backup mechanism for connecting edge computing gateways in series without introducing new equipment. The technical scheme provided by the embodiment of the application can ensure that the main gateway is rapidly switched to the standby gateway to continue providing the service when the main gateway fails to provide the service normally, and the normal service access requirement of the user is maintained. Meanwhile, when both the main gateway and the standby gateway fail, an escape mechanism is arranged to automatically jump the data transmission to the standby link to access the public network and the local network service.
The following describes in detail the disaster recovery system and method of the communication gateway provided by the embodiment of the application with reference to the accompanying drawings.
Fig. 2 shows a schematic diagram of a disaster recovery system for a communication gateway according to an embodiment of the present application.
As shown in fig. 2, the disaster recovery system may include:
The first gateway 110 is respectively in communication connection with the local network 130 and the base station 140; the first gateway 110 is configured to forward 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 activate an optical bypass protector built in the first gateway 110 and forward a 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 built-in optical bypass protectors.
In the above embodiments, the Gateway (Gateway) is also called an intersystem connector or a protocol converter. The gateway realizes network interconnection above the network layer, is a complex network interconnection device, and is only used for network interconnection with two different higher-layer protocols. The gateway may be used for both wide area network and local area network interconnections. A gateway is a computer system or device that acts as a translation rendition. The gateway is a translator for use between two systems of different communication protocols, data formats or languages, even with disparate architectures. Rather than simply conveying the information, the gateway repacks the received information to accommodate the needs of the destination system.
The optical bypass protector (Optical Bypass Protection, OBP), also called optical bypass protection system, is an intelligent switching system which is applied to the field of optical fiber communication and can automatically bypass the network node with fault, can automatically identify the power supply state and the signal output state of the network node, and can perform optical path instantaneous switching when the node has fault, thereby avoiding the occurrence of complete resistance of the network node and keeping the system connected normally.
In the disaster recovery system for the communication gateway provided by the embodiment of the application, two gateways with built-in optical bypass protectors are connected in series. Normally, the first gateway provides services. 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 accept the work of the first gateway, so that the switching to the second gateway, namely the disaster recovery function of the communication gateway system, is realized when the first gateway fails.
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 protector arranged in the first gateway and the second gateway, and no third party equipment such as a switch is introduced, so that the network structure is simpler than that of a parallel backup mode, and the safety of the disaster recovery system is improved.
In order to improve the transmission efficiency and the security of the whole network system, the communication gateway disaster recovery system provided by the embodiment of the application also provides another implementation mode of the communication gateway disaster recovery system. In the disaster recovery system for a communication gateway provided in the embodiment, other transmission networks and network security systems may also be disposed on a communication link between the communication gateway and the local network 120 or the internet 140. See in particular fig. 3.
Fig. 3 is a schematic diagram of another disaster recovery system for a communication gateway according to an embodiment of the present application, 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 parses the user plane data packet according to the destination IP address of the user plane data packet, to obtain a parsing result. If the analysis result shows that the destination IP address of the user data packet is a local address, forwarding the user data packet directly 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, the second gateway automatically starts a shunting function, analyzes the local service data which is not shunted, that is, the user data packet, and forwards the analyzed result to the local network 130 or the internet 150 respectively, thereby truly realizing dual backup of the edge technology network, and ensuring normal operation of the whole network system.
In some embodiments, a firewall may be added to the disaster recovery system of the communication gateway, 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, where the firewall may be disposed between the internet 150 and the core network 170.
In some embodiments, a firewall may also be provided between the local network 130 and the first gateway 110 and/or the second gateway 120.
The communication gateway disaster recovery system provided by the embodiment of the application is also provided with the firewall before the user data packet enters the local network or the core network, and the addition of the firewall can improve the safety of the communication gateway system and reduce the probability of paralysis caused by malicious attack of the communication gateway system.
Based on the communication gateway disaster recovery system provided in the above embodiment, in order to implement mutual disaster recovery backup of the first gateway and the second gateway, the first gateway may monitor the working state of the second gateway. In the disaster recovery system for a communication gateway provided by the embodiment of the application, a cardiac jumper can be arranged between the first gateway and the second gateway.
In some embodiments, based on the disaster recovery system shown in fig. 2, the first gateway 110 and the second gateway 150 may also be connected through a heartbeat line, where the heartbeat line is used to monitor the working status of the first gateway 110 and the second gateway 120.
In the above embodiment, the jumper refers to a network cable for connecting A, B two servers. The heartbeat line is used for realizing the function of heartbeat detection, and the principle of the heartbeat detection is as follows: in the two servers A, B, a is a working machine, B is a backup machine, and they are connected by a heartbeat line. Two network cards are generally arranged on the server, wherein one network card is specially used for communication between two servers (nodes). Software installed on the server monitors the running state of the other party in real time through the jumper wire. Once the operating host a fails due to various hardware failures, such as power failure, failure of a main component, failure of a boot disk, etc., the heartbeat line is reflected to another host that is backup to each other, and the host B can immediately be put into operation. Thus, the normal operation of the network can be ensured to the maximum extent.
In some examples, a jumper may also be provided in the disaster recovery system shown in fig. 3, where the jumper is used to connect the first gateway 110 and the second gateway 120, and monitor the working states of the first gateway and the second gateway.
In this disaster recovery system, a first gateway 110, which is a main working device, is monitored by software through a network line 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 out of service for some reason, to ensure the smoothness of the network and the normal operation of the service.
The disaster recovery mode in the embodiment provided with the cardiac jumper is 'cold backup disaster recovery', and the disaster recovery principle is as follows: as shown in fig. 3, two gateways are disposed in series between the base station 140 and the transmission network 160 and the core network 170, wherein the first gateway 110 is a main working machine, and the second gateway 120 is a backup machine, and they are connected by a heartbeat line. Two network cards are arranged on the gateway, and one network card is specially used for communication between two gateways (nodes). The software installed on the gateway server monitors the running state of the other party in real time through the cardiac jumper. Once the primary working machine first gateway 110 is working, the system is failed due to various hardware failures, such as power failure, main component failure or boot disk failure, and the like, and the primary working machine first gateway is reflected to another host machine which is mutually backed up through the jumper 180, the backup machine second gateway 120 can immediately put into working and send out monitoring alarm indication at the same time, so as to inform maintenance personnel of immediate replacement. Thus, 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 cardiac jumper is arranged between the first gateway and the second gateway, so that the cold backup disaster recovery of the first gateway and the second gateway is realized, namely, the standby gateway only needs to start the shunting function when the first gateway fails, 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, the first gateway can monitor the working state of the second gateway, the function of mutually monitoring disaster recovery of the two gateways is realized, and the service life of the second gateway is prolonged while the function of disaster recovery of a 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 disaster recovery method for a communication gateway according to an embodiment of the present application, which is applied to a disaster recovery system according to embodiments of the first aspect of the present application, as shown in fig. 4, and may include steps S410 to S430.
In step S410, the second gateway receives the target packet.
The target data packet 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.
In step S420, if 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 analysis result, that is, the analysis result obtained by analyzing the user data packet from the base station by the first gateway in the embodiment of the first aspect.
Step S430, starting an optical bypass protector built in the first gateway.
And starting an optical bypass protector built in the first gateway, and simultaneously starting the second gateway to take over the work of the first gateway.
In some embodiments, the second gateway forwards the user data packet to the internet in case the parsing result indicates that the network to be accessed by the user data packet is a non-local network.
In the disaster recovery system of the embodiment of the first aspect, when the first gateway is in a normal working state, the target data packet received by the second gateway should include the content parsed by the first gateway, and if the target IP address of the user data packet is a local network, the user data packet will not be 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, 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, and the working state of the first gateway can be judged to be normal, and the second gateway does not need to process.
In some embodiments, the first gateway may also process the data packet to generate the target data packet before the second gateway receives the target data packet. Based on this, the disaster recovery method for the communication gateway 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, the first gateway forwards the target data packet to the local network when the analysis result indicates that the network to be accessed by the user data packet is the local network;
in step S480, if 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;
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 via a heartbeat line, the heartbeat line being used to monitor the working state of the first gateway and the second gateway with respect to each other.
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 disaster recovery method of the communication gateway can further comprise the following steps:
Starting an optical bypass protector built in the first gateway, and
And sending out alarm information to remind operation and maintenance personnel to maintain the second gateway.
In some embodiments, in the case that the working states of the first gateway and the second gateway are abnormal, the disaster recovery method for the communication gateway may further include:
And starting an optical bypass protector built in the first gateway and an optical bypass protector built in the second gateway.
The disaster recovery method for the communication gateway 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 through link to the Internet, so that the link switching is realized, and the normal service is ensured.
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 meanwhile, no additional time delay is added, so that the system and the method are simpler in network structure and lower in cost compared with a parallel backup mode, and the dual protection of the network is really realized.
Secondly, in an actual network environment, the probability of simultaneous occurrence of faults of a plurality of network devices is very low, but the built-in OBP bypass detection escape mechanism of the edge computing gateway provided by the embodiment of the application automatically performs link switching, so that the problem that simultaneous faults of the devices affect user perception 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 recovery capability of the gateway equipment.
It should be understood that the application is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. The method processes of the present application are not limited to the specific steps described and shown, but various changes, modifications and additions, or the order between steps may be made by those skilled in the art after appreciating the spirit of the present application.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. 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, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
Aspects of the present application are described above with reference to flowchart illustrations and/or block diagrams of methods, systems 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 being, 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 which performs the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present application, and they should be included in the scope of the present application.
Claims (11)
1. A communications gateway disaster recovery system, comprising:
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;
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 an optical bypass protector;
The second gateway is used for starting an optical bypass protector built in the first gateway and forwarding a user data packet from a base station to a local network or the Internet under the condition that the first gateway works abnormally;
The first gateway is further configured to parse the user data packet to obtain a parsing result;
the first gateway is further configured to obtain a target data packet based on the analysis result and the user data packet;
The first gateway is further configured to forward the target data packet to a local network when the analysis result indicates that the network to be accessed by the user data packet is the local network;
The first gateway is further configured to forward the target data packet to the second gateway when the analysis result indicates that the network to be accessed by the user data packet is a non-local network;
The second gateway is further configured to, when the target data packet does not include an 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, start an optical bypass protector built in the first gateway, and forward the user data packet to the local network;
And the second gateway is further configured to forward the user data packet to the internet when the analysis result indicates that the network to be accessed by the user data packet is a non-local network.
2. The disaster recovery system of claim 1, wherein the first gateway and the second gateway are further connected by a heartbeat line; the heartbeat line is used for the first gateway and the second gateway to monitor working states mutually.
3. The disaster recovery system of claim 1, wherein the second gateway is connected to the internet through a transmission network and a core network.
4. A disaster recovery system according to claim 3, wherein a firewall is provided between said internet and said core network.
5. The disaster recovery system according to claim 1, wherein a firewall is provided between the local network and the first gateway and/or the second gateway.
6. A disaster recovery method for a communication gateway, applied to the disaster recovery system of claim 1, the method comprising:
The second gateway receives the target data packet;
In the case that 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 local network, and
Starting an optical bypass protector built in the first gateway;
the analysis result is obtained by analyzing the user data packet from the base station by the first gateway.
7. The method according to claim 6, wherein a second gateway forwards the user data packet to the internet in case the parsing result indicates that the network to be accessed by the user data packet is a non-local network.
8. The method of claim 6, wherein prior to the second gateway receiving the target data packet, the method further comprises:
the 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;
If 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 if 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 starting the optical bypass protector built into the first gateway, the method further comprises:
And sending out alarm information to remind operation and maintenance personnel to maintain the first gateway.
10. The method according to any of claims 6-9, wherein the first gateway is connected to the second gateway by a heartbeat line, the heartbeat line being used for the first gateway and the second gateway to monitor the working state with each other;
In the case 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:
starting an optical bypass protector built in the first gateway, and
And sending out alarm information to remind operation and maintenance personnel to maintain the second gateway.
11. The method of claim 10, wherein in the event that the operating states of the first gateway and the second gateway are both abnormal, the method further comprises:
and starting an optical bypass protector built in the first gateway and an optical bypass protector built in the second gateway.
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