CN116647469B - Shunt port switching method, device, shunt equipment and storage medium - Google Patents
Shunt port switching method, device, shunt equipment and storage medium Download PDFInfo
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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
- H04L43/02—Capturing of monitoring data
- H04L43/026—Capturing of monitoring data using flow identification
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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
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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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
- H04L41/0677—Localisation of faults
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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
- H04L43/02—Capturing of monitoring data
- H04L43/028—Capturing of monitoring data by filtering
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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
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/31—Flow control; Congestion control by tagging of packets, e.g. using discard eligibility [DE] bits
Abstract
The application relates to a shunting port switching method, a shunting device and a storage medium. The method comprises the following steps: distributing the flow of the ports of the shunt equipment according to each output identifier; according to the flow distribution result, the network flow is distributed to the distribution equipment ports corresponding to the output identifiers for output, so that the acquisition equipment corresponding to the distribution equipment ports processes the network flow; performing fault monitoring on ports of each shunt device and each acquisition device; under the condition that the fault is detected, exchanging a first output identifier corresponding to the shunting equipment port of the fault point with a second output identifier corresponding to the standby shunting equipment port, so that the shunting equipment port corresponding to the first output identifier is changed into the standby shunting equipment port; and switching the network traffic corresponding to the first output identifier to the output of the corresponding standby shunting equipment port after interchange, so that the standby acquisition equipment corresponding to the standby shunting equipment port processes the network traffic. By adopting the method, the switching time delay can be reduced.
Description
Technical Field
The present application relates to the field of computer technologies and network technologies, and in particular, to a method and apparatus for switching a split port, a split device, and a storage medium.
Background
The DPI (Deep Packet Inspection ) system, the security analysis system and the like are widely applied to various networks and are used for uniformly collecting network traffic and analyzing and identifying to generate corresponding logs. When the system performs disaster recovery switching, the shunting equipment port and the acquisition equipment corresponding to the fault point are required to be switched into a standby shunting equipment port and a standby acquisition equipment, so that the originally used shunting equipment port is replaced by the standby shunting equipment port to output flow, and the flow is processed by the standby acquisition equipment.
In the conventional method, traffic distribution is generally performed according to port numbers of ports of each splitting device, so as to split different network traffic to each splitting device port for output. However, after the port number of the standby splitter port is changed, the port number of the standby splitter port needs to be used to re-distribute the traffic, so that a long switching delay is caused.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a split port switching method, apparatus, a split device, a computer-readable storage medium, and a computer program product that can reduce switching delay.
In a first aspect, the present application provides a method for switching a split port. The method comprises the following steps:
according to each output identifier, carrying out flow distribution on the shunting equipment ports corresponding to each output identifier respectively;
according to the flow distribution result, network flow is distributed to the distribution equipment ports corresponding to the output identifiers to be output, so that the acquisition equipment corresponding to the distribution equipment ports processes the network flow;
performing fault monitoring on each shunt equipment port and the acquisition equipment corresponding to each shunt equipment port respectively;
under the condition that the fault is detected, exchanging a first output identifier corresponding to a shunting equipment port corresponding to a fault point with a second output identifier corresponding to a standby shunting equipment port so as to enable the shunting equipment port corresponding to the first output identifier to be changed into the standby shunting equipment port;
and switching the network traffic corresponding to the first output identifier to a corresponding standby shunting equipment port for output after interchange, so that standby acquisition equipment corresponding to the standby shunting equipment port processes the network traffic.
In a second aspect, the application further provides a shunting port switching device. The device comprises:
The flow distribution module is used for distributing the flow of the shunting equipment ports corresponding to the output identifiers respectively according to the output identifiers;
the distribution module is used for distributing the network traffic to the distribution equipment ports corresponding to the output identifiers according to the traffic distribution result so as to enable the acquisition equipment corresponding to the distribution equipment ports to process the network traffic;
the fault monitoring module is used for carrying out fault monitoring on each shunt equipment port and the acquisition equipment corresponding to each shunt equipment port respectively;
the device comprises an identifier interchange module, a first output identifier, a second output identifier and a backup distribution device port, wherein the identifier interchange module is used for interchanging a first output identifier corresponding to a distribution device port corresponding to a fault point with a second output identifier corresponding to the backup distribution device port under the condition that the fault is detected, so that the distribution device port corresponding to the first output identifier is changed into the backup distribution device port;
the distribution module is further configured to switch the network traffic corresponding to the first output identifier to a standby distribution device port corresponding to the exchanged network traffic for output, so that a standby acquisition device corresponding to the standby distribution device port processes the network traffic.
In one embodiment, the output identifier corresponding to each of the ports of the splitting device and the identifier information of the input network traffic are stored in advance;
the flow distribution module is further used for determining distribution mapping relations between the network flows and the output identifiers according to the identification information of the network flows and the output identifiers;
the distribution module is further configured to distribute each network flow to a corresponding distribution device port corresponding to the output identifier for output according to the distribution mapping relationship between each network flow and each output identifier.
In one embodiment, the flow distribution module is further configured to perform hash operation according to the identification information of the network flow, and determine a corresponding hash value; and determining the output identification corresponding to the network flow according to the hash value.
In one embodiment, a correspondence between each output identifier and a port identifier of each port of the splitting device is preset;
the distribution module is further used for distributing the network flow to the distribution equipment ports represented by the port identifiers corresponding to the output identifiers respectively according to the flow distribution result;
The identifier interchange module is further configured to interchange a first output identifier corresponding to a port identifier of a splitter port corresponding to a fault point with a second output identifier corresponding to a port identifier of a standby splitter port, so that a splitter port represented by the port identifier corresponding to the first output identifier becomes the standby splitter port.
In one embodiment, the preset initial value of the output identifier is the same as the port identifier of the corresponding port of the splitting device; the output identification is preset to correspond to the same port identification.
In one embodiment, the fault monitoring module is further configured to perform fault monitoring on each of the shunting device ports in the shunting device and the collecting device corresponding to each of the shunting device ports respectively; triggering a switching instruction if at least one of the shunt equipment port and the acquisition equipment is monitored to be faulty;
the identifier interchange module is further configured to interchange, in response to the switching instruction, a first output identifier corresponding to the splitter port corresponding to the fault point with a second output identifier corresponding to the spare splitter port.
In a third aspect, the present application also provides a shunt device. The shunting device comprises a memory and a processor, wherein the memory stores a computer program, and the computer program when executed by the processor causes the processor to execute the steps in the shunting port switching method according to the embodiments of the present application.
In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium has a computer program stored thereon, which when executed by a processor causes the processor to perform the steps in the split port switching method according to the embodiments of the present application.
In a fifth aspect, the present application also provides a computer program product. The computer program product includes a computer program, which when executed by a processor, causes the processor to execute the steps in the split port switching method according to the embodiments of the present application.
According to the split port switching method, the split device, the storage medium and the computer program product, the output identifiers are newly added, the split device ports corresponding to the output identifiers are not allocated according to the port identifiers of the split device ports, the split device ports corresponding to the output identifiers are allocated according to the output identifiers, then the network traffic is split to the split device ports corresponding to the output identifiers according to the result of the flow allocation, so that the acquisition devices corresponding to the split device ports process the network traffic, the split device ports and the acquisition devices corresponding to the split device ports are monitored by faults in the splitting process, under the condition that faults occur, the first output identifiers corresponding to the split device ports corresponding to the fault points are exchanged with the second output identifiers corresponding to the standby split device ports, so that the split device ports corresponding to the first output identifiers are changed into the standby split device ports, the original output identifiers are still used for flow allocation when faults occur, the split device ports corresponding to the fault points are only changed, the network traffic corresponding to the first output identifiers corresponding to the fault points is switched to the acquisition devices corresponding to the split device ports, and the standby device ports are switched to the standby device ports after the fault points are switched, and the standby device is not required to be switched, so that the standby device is not required to be allocated.
Drawings
FIG. 1 is an application environment diagram of a split port switching method in one embodiment;
FIG. 2 is a flow chart of a method for switching a split port according to one embodiment;
FIG. 3 is a schematic diagram of a split port switching method according to an embodiment;
FIG. 4 is a block diagram of a split port switching device in one embodiment;
fig. 5 is an internal structural view of the shunt device in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The shunting port switching method provided by the embodiment of the application can be applied to an application environment shown in fig. 1. Wherein the distribution device 102 communicates with each collection device 104 via a network. The splitting device 102 may execute the splitting port switching method in the embodiments of the present application, and split the network traffic to each splitting device port on the splitting device 102 to output to each collecting device 104 for processing. The diversion device 102 is a device for diverting network traffic. The splitting device 102 may be any of a splitter, a switch, a router, a load balancer, and the like. The collection device 104 may be implemented as a stand-alone server or as a cluster of servers. The distribution device 102 and the collection device 104 may be devices in a DPI (Deep Packet Inspection ) system, a security analysis system, or the like.
In some embodiments, as shown in fig. 2, a method for switching a split port is provided, which is illustrated by taking application of the method to the split device 102 in fig. 1 as an example, and includes the following steps:
step 202, according to each output identifier, flow distribution is carried out on the ports of the distribution equipment corresponding to each output identifier.
The output identifier is a preset identifier for uniquely characterizing the shunt link. The output identifiers are respectively provided with corresponding shunting equipment ports, and the shunting equipment ports corresponding to the output identifiers can be mutually exchanged. The diversion device is a device for diverting network traffic. The port of the diversion equipment is a port on the diversion equipment for outputting network traffic to the acquisition equipment. The splitter device is provided with a plurality of splitter device ports. Each split device port is respectively in butt joint with one acquisition device. Traffic distribution is a process of determining a distribution manner of distributing network traffic to a plurality of splitter ports, that is, determining which network traffic is distributed to which output identifier corresponds to the splitter port.
In some embodiments, the splitting device may obtain the input network traffic, and then, according to the identification information of the network traffic and each output identifier, perform traffic distribution on the splitting device ports corresponding to each output identifier, so as to determine the output identifiers to which each network traffic is respectively distributed.
In some embodiments, the splitting device may perform hash operation according to the identification information of the network traffic and each output identifier, so as to perform traffic distribution on the splitting device ports corresponding to each output identifier, and determine the output identifier to which each network traffic is respectively distributed.
In some embodiments, the splitting device may perform, according to each output identifier, flow distribution on a splitting device port corresponding to each output identifier, so as to implement load balancing and homologous. The load balancing refers to distributing network traffic to a plurality of acquisition devices to achieve balancing of network traffic borne by the acquisition devices. Homologous and homotopy refers to distributing network traffic from the same source to the same collection device.
And 204, according to the flow distribution result, the network flow is distributed to the distribution equipment ports corresponding to the output identifiers for output, so that the acquisition equipment corresponding to the distribution equipment ports processes the network flow.
The result of the traffic distribution is a distribution result of which network traffic is distributed to which output identifier corresponds to the port of the splitting device.
In some embodiments, the splitting device may split each network traffic to a splitting device port corresponding to the output identifier indicated to be allocated in the traffic allocation result according to the traffic allocation result, where the splitting device port may output the network traffic to a corresponding collecting device, and the collecting device may process the network traffic.
In some embodiments, the collection device may parse, identify, and generate logs of network traffic.
And 206, performing fault monitoring on each shunt equipment port and the acquisition equipment corresponding to each shunt equipment port.
The fault monitoring is the process of monitoring whether the port of the shunt equipment and the acquisition equipment have faults or not.
In some embodiments, the failure of the drop device port may include at least one of a drop device port not functioning properly, an insufficient optical power of the drop device port (i.e., an optical power below a preset optical power threshold), and an excessive bit error rate of the drop device port (i.e., a bit error rate above a preset bit error rate threshold), among others.
In some embodiments, the failure of the acquisition device may include at least one of an abnormality of a network port or network card of the acquisition device, an inability of the acquisition device to function properly, an abnormality of software of the acquisition device, and the like.
In some embodiments, the shunt device may monitor the status of the shunt device port and the acquisition device to determine if the shunt device port and the acquisition device are malfunctioning.
In some embodiments, an automatic monitoring unit is added to the diversion apparatus in advance. As shown in fig. 3, the shunting device may perform fault monitoring on each shunting device port and the collecting device corresponding to each shunting device port through the automatic monitoring unit. The automatic monitoring unit is used for monitoring faults of the port of the shunt equipment and the acquisition equipment in the shunt equipment. The automatic monitoring unit may be a soft module or hardware.
Step 208, under the condition that the fault is monitored, exchanging the first output identifier corresponding to the shunting equipment port corresponding to the fault point with the second output identifier corresponding to the standby shunting equipment port, so that the shunting equipment port corresponding to the first output identifier is changed into the standby shunting equipment port.
The first output identifier refers to an output identifier corresponding to a port of the shunt device corresponding to the fault point. The second output identifier refers to an output identifier corresponding to the spare shunting equipment port. It will be appreciated that the first output identifier and the second output identifier are both output identifiers, and that "first" and "second" are merely output identifiers that are used to distinguish, in terms of expression, between the different splitter ports.
In some embodiments, in a case that at least one of the splitter port and the acquisition device is monitored to be faulty, the splitter may exchange the first output identifier corresponding to the splitter port corresponding to the fault point with the second output identifier corresponding to the standby splitter port, so that the splitter port corresponding to the first output identifier becomes the standby splitter port. Under the condition that the port of the shunting equipment fails, the first output identifier corresponding to the port of the shunting equipment corresponding to the failure point refers to the output identifier corresponding to the port of the shunting equipment with the failure. Under the condition that the acquisition equipment fails, the first output identifier corresponding to the shunting equipment port corresponding to the failure point refers to the output identifier corresponding to the shunting equipment port corresponding to the failed acquisition equipment.
In some embodiments, in the case that a fault is detected, exchanging the first output identifier corresponding to the splitter port corresponding to the fault point with the second output identifier corresponding to the spare splitter port. Namely, the output identification corresponding to the shunt equipment port corresponding to the fault point is changed from the first output identification to the second output identification, and the output identification corresponding to the standby shunt equipment port is changed from the second output identification to the first output identification. That is, the split device port corresponding to the fault point corresponds to the first output identifier, and the standby split device port corresponds to the second output identifier, and the split device port corresponding to the fault point corresponds to the second output identifier, and the standby split device port corresponds to the first output identifier.
For example: in fig. 3, the output identifier corresponding to the tap corresponding to the fault point (i.e. the position of the cross sign in the drawing) is originally 2, the output identifier corresponding to the spare tap is originally n+1, after the output identifiers are exchanged under the condition that the fault is detected, the output identifier corresponding to the tap corresponding to the fault point is changed to n+1 (the output identifier shown in the drawing is the exchanged state), and the output identifier corresponding to the spare tap is changed to 2, so that the network traffic originally distributed to the output identifier 2 is directly switched from the tap corresponding to the fault point to the spare tap for outputting.
Step 210, switching the network traffic corresponding to the first output identifier to the backup distribution equipment port corresponding to the exchanged network traffic for output, so that the backup acquisition equipment corresponding to the backup distribution equipment port processes the network traffic.
It can be understood that after the output identifiers are interchanged, since the output identifiers are not changed, the flow distribution is not required to be performed again, the distribution device can continue to distribute the network flow to the distribution device ports corresponding to the output identifiers according to the result of the flow distribution originally determined according to the output identifiers, and since the distribution device port corresponding to the first output identifier is changed into the standby distribution device port at this time, the distribution device can switch the network flow corresponding to the first output identifier to the standby distribution device port for output after the interchange. The spare shunting equipment ports output the network traffic to corresponding spare acquisition equipment, and the spare acquisition equipment can process the network traffic.
According to the diversion port switching method, the output identifiers are newly added, the flow distribution is not carried out according to the port identifiers of the diversion device ports, but the flow distribution is carried out on the diversion device ports corresponding to the output identifiers according to the output identifiers, then the network flow is distributed to the diversion device ports corresponding to the output identifiers according to the flow distribution result, so that the acquisition devices corresponding to the diversion device ports process the network flow, the fault monitoring is carried out on the diversion device ports and the acquisition devices corresponding to the diversion device ports respectively in the diversion process, under the condition that the fault is detected, the first output identifiers corresponding to the diversion device ports corresponding to the fault points are exchanged with the second output identifiers corresponding to the standby diversion device ports, so that the diversion device ports corresponding to the first output identifiers are changed into the standby diversion device ports, the flow distribution is still carried out by using the output identifiers corresponding to the fault points when the fault occurs, and the network flow corresponding to the first output identifiers corresponding to the fault points is directly switched to the standby diversion device ports corresponding to the exchange, the standby diversion device ports are output, and the time delay is not required to be reduced, and the network flow is not required to be switched. In addition, as the flow distribution is not needed again, the network flow of the fault point can be switched to the spare shunting equipment ports for output, the components and the proportion of the network flow output by the rest shunting equipment ports are kept unchanged, and the load balancing and the homologous and homologous are realized. In addition, because the network flow output by each shunting equipment port is unchanged, the association relation between the network flow learned by the DPI system, the security analysis system and other systems can be continuously available, and a complete log can be generated.
The following illustrates the above effects: in the conventional method, the flow distribution is performed according to the port identifier (i.e., the port number), and it is assumed that the flow distribution result is that the network flow a is distributed to the splitter port with the port identifier 1, the network flow b is distributed to the splitter port with the port identifier 2, the network flow c is distributed to the splitter port with the port identifier 3, when the splitter port with the port identifier 1 fails, the splitter port with the port identifier 1 is replaced by the standby splitter port 4, so that the flow distribution needs to be performed again according to the port identifiers 2, 3 and 4, and the new flow distribution result is that the network flow a is distributed to the splitter port with the port identifier 2, the network flow b is distributed to the splitter port with the port identifier 3, and the network flow c is distributed to the splitter port with the port identifier 4. In the method of the application, the flow distribution is carried out according to the output identifier, the network flow a is distributed to the distribution equipment port 1 corresponding to the output identifier X, the network flow b is distributed to the distribution equipment port 2 corresponding to the output identifier Y, and the network flow c is distributed to the distribution equipment port 3 corresponding to the output identifier Z, when the distribution equipment port 1 fails, the distribution equipment port 1 is replaced by the standby distribution equipment port 4, so that the distribution of the network flow is still distributed according to the output identifier X, Y, Z, only the distribution equipment port corresponding to the output identifier X is changed, and only the distribution of the network flow is switched from the distribution equipment port 1 to the distribution equipment port 4 to be output, thus, the switching delay is reduced, the components and the proportion of the network flow output by the distribution equipment ports are unchanged, and the correlation of the network flow of a DPI system, a security analysis system and the like can be continuously generated, and the correlation of the network flow can be continuously and completely generated.
In some embodiments, output identifiers corresponding to the ports of the shunting devices and the identifier information of the input network traffic are stored in advance; according to each output identifier, performing flow distribution on the split device ports corresponding to each output identifier respectively comprises: determining an allocation mapping relation between each network flow and each output identifier according to the identifier information of the network flow and each output identifier; according to the result of flow distribution, the step of distributing the network flow to the distribution equipment ports corresponding to the output identifiers for output comprises the following steps: and according to the distribution mapping relation between each network flow and each output identifier, distributing each network flow to a distribution equipment port corresponding to the corresponding output identifier for output.
The identification information is information for uniquely identifying the network traffic.
In some embodiments, the identification information may be a traffic five-tuple. The traffic five-tuple may include a Source IP address (Source IP Address), a Destination IP address (Destination IP Address), a Source Port number (Source Port), a Destination Port number (Destination Port), and a transport Protocol (Protocol).
In some embodiments, after acquiring the network traffic, the offloading device may determine and store identification information of the network traffic. The split device stores output identifiers corresponding to the ports of the classification devices in advance, and the output identifiers corresponding to the ports of the classification devices can be interchanged. As shown in fig. 3, the flow five-tuple (i.e., sip/dip/sport/dport in the figure) of the network flow, and the respective output identities are stored, respectively. Unlike the traditional method, which stores the port identification (i.e. port number) of the port of the shunting equipment at the position of the output port number and performs flow distribution according to the related information of the network flow and the port identification, the application stores the output identification and performs flow distribution according to the stored related information of the network flow and the output identification.
In some embodiments, the offloading device may perform a hash operation according to the identification information of the network traffic and each output identifier to determine an allocation mapping relationship between each network traffic and each output identifier, i.e., which network traffic is allocated to which output identifier. And according to the distribution mapping relation between each network flow and each output identifier, distributing each network flow to a distribution equipment port corresponding to the output identifier assigned by the distribution mapping relation for outputting.
In the above embodiment, the allocation mapping relationship between each network flow and each output identifier is determined according to the identifier information of the network flow and each output identifier, and each network flow is shunted to the corresponding shunting equipment port of the corresponding output identifier for output according to the allocation mapping relationship between each network flow and each output identifier.
In some embodiments, determining the allocation mapping between the network traffic and the output identifiers based on the network traffic identification information and the output identifiers comprises: carrying out hash operation according to the identification information of the network traffic, and determining a corresponding hash value; and determining the output identifier corresponding to the network traffic according to the hash value.
In some embodiments, the splitting device may perform hash operation on the identification information of the network traffic to obtain a corresponding hash value, and determine the bit of the output identifier according to the hash value, so as to determine, from each output identifier, an output identifier that matches the bit. For example: and carrying out hash operation on the identification information of the network flow to obtain a hash value of 5, and determining the output identification which is arranged at the 5 th in each output identification as the output identification which is correspondingly allocated to the network flow.
In the above embodiment, since the output identifier to which the network traffic is correspondingly allocated is determined according to the hash value, after the failover diverter port occurs, the output identifier remains unchanged, but only the diverter port to which the output identifier corresponds changes, so that the allocation result of the output identifier to which the network traffic is correspondingly allocated is determined to remain unchanged according to the hash value, and the traffic allocation is not required to be performed again, but the network traffic corresponding to the output identifier is directly switched to the standby diverter port to which the output identifier corresponds newly after the switchover occurs, thereby reducing the switching delay.
In some embodiments, a correspondence between each output identifier and a port identifier of each splitter port is preset; according to the result of flow distribution, the step of distributing the network flow to the distribution equipment ports corresponding to the output identifiers for output comprises the following steps: according to the flow distribution result, network flow is shunted to shunting equipment ports represented by port identifiers corresponding to the output identifiers respectively for outputting; exchanging the first output identifier corresponding to the shunting equipment port corresponding to the fault point with the second output identifier corresponding to the standby shunting equipment port so that the shunting equipment port corresponding to the first output identifier is changed into the standby shunting equipment port comprises the following steps: and exchanging the first output identifier corresponding to the port identifier of the shunting equipment port corresponding to the fault point with the second output identifier corresponding to the port identifier of the standby shunting equipment port so as to enable the shunting equipment port represented by the port identifier corresponding to the first output identifier to be changed into the standby shunting equipment port.
The port identifier is used for uniquely characterizing the port of the shunt device.
In some embodiments, the splitting device may store a preset correspondence between each output identifier and a port identifier of each splitting device port. The distribution equipment can distribute the network flow to the distribution equipment ports represented by the port identifiers corresponding to the output identifiers respectively according to the flow distribution result, so that the acquisition equipment corresponding to the distribution equipment ports processes the network flow. Under the condition that the fault is detected, the shunting equipment can exchange the first output identification corresponding to the port identification of the shunting equipment port corresponding to the fault point with the second output identification corresponding to the port identification of the standby shunting equipment port, so that the shunting equipment port represented by the port identification corresponding to the first output identification is changed into the standby shunting equipment port. The diversion equipment can switch the network flow corresponding to the first output identifier to the standby diversion equipment port represented by the port identifier corresponding to the exchanged network flow for output, so that the standby acquisition equipment corresponding to the standby diversion equipment port processes the network flow.
In the above embodiment, the correspondence between each output identifier and the port identifier of each port of the splitting device is preset, so that the correspondence between the output identifier and the ports of the classifying device can be recorded conveniently. After the fault occurs, exchanging the first output identifier corresponding to the port of the shunting device corresponding to the fault point with the second output identifier corresponding to the standby shunting device port, namely, changing the corresponding relation between the output identifier and the port identifier, still shunting according to the result of flow distribution according to the output identifier, and only changing the port identifier corresponding to the output identifier. Traffic distribution is not needed again by using the port identification, and switching time delay is reduced.
In some embodiments, the preset initial value of the output identifier is the same as the port identifier of the corresponding splitter port; the output identification is preset to correspond to the same port identification.
For example: initially, an output identifier corresponding to a port of the splitting device with a port identifier of 1 is 1, an output identifier corresponding to a port of the splitting device with a port identifier of 2 is 2, an output identifier corresponding to a port of the splitting device with a port identifier of N is N, and an output identifier corresponding to a port of the splitting device with a port identifier of n+1 is n+1. In the case that the fault is detected, the splitter port corresponding to the fault point in fig. 3 is a splitter port with a port identifier of 2, and the standby splitter port is a splitter port with a port identifier of n+1, so that the first output identifier 2 corresponding to the port identifier of 2 and the second output identifier n+1 corresponding to the port identifier of n+1 are interchanged, so that the port identifier corresponding to the first output identifier 2 is changed into n+1, that is, the splitter port corresponding to the first output identifier 2 is a splitter port with a port identifier of n+1.
In the above embodiment, the preset initial value of the output identifier is the same as the port identifier of the corresponding port of the splitting device, and the output identifier is preset to correspond to the same port identifier, so that the output identifier can be exchanged conveniently, and the switching efficiency is improved.
In some embodiments, performing fault monitoring on each of the splitter ports and the acquisition devices to which each of the splitter ports corresponds respectively includes: through an automatic monitoring unit in the shunt equipment, fault monitoring is carried out on each shunt equipment port in the shunt equipment and the acquisition equipment corresponding to each shunt equipment port respectively; triggering a switching instruction if at least one of the port of the shunt equipment and the acquisition equipment is monitored to be faulty; under the condition that the fault is detected, exchanging the first output identifier corresponding to the shunt equipment port corresponding to the fault point with the second output identifier corresponding to the standby shunt equipment port comprises the following steps: responding to the switching instruction, the shunting equipment exchanges the first output identifier corresponding to the shunting equipment port corresponding to the fault point with the second output identifier corresponding to the standby shunting equipment port.
In the above embodiment, the automatic monitoring unit is added in the shunting equipment, so that fault monitoring can be performed on the ports of the shunting equipment and the acquisition equipment, and a switching instruction can be triggered when the fault is monitored, so that the shunting equipment exchanges the first output identifier corresponding to the ports of the shunting equipment corresponding to the fault point with the second output identifier corresponding to the ports of the standby shunting equipment, the efficient switching of the ports can be realized only by exchanging the output identifiers, the flow distribution is not required to be performed again, and the time delay is reduced.
It should be understood that, although the steps in the flowcharts related to the above embodiments are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a split port switching device for realizing the above related split port switching method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the present application for one or more split port switching devices may be referred to as the limitation of the split port switching method hereinabove, and will not be described herein.
In some embodiments, as shown in fig. 4, there is provided a split port switching apparatus 400, including: a flow distribution module 402, a diversion module 404, a fault monitoring module 406, and an identification interchange module 408, wherein:
the flow distribution module 402 is configured to perform flow distribution on the ports of the splitting device corresponding to each output identifier according to each output identifier;
the splitting module 404 is configured to split the network traffic to a splitting device port corresponding to each output identifier according to a traffic distribution result, so that the collecting device corresponding to the splitting device port processes the network traffic;
the fault monitoring module 406 is configured to perform fault monitoring on each of the split device ports and the acquisition devices corresponding to each of the split device ports;
the identifier interchange module 408 is configured to, when a fault is detected, interchange a first output identifier corresponding to a splitter port corresponding to the fault point with a second output identifier corresponding to a standby splitter port, so that the splitter port corresponding to the first output identifier is changed into the standby splitter port;
the splitting module 404 is further configured to switch the network traffic corresponding to the first output identifier to a standby splitting device port corresponding to the exchanged network traffic for outputting, so that the standby collecting device corresponding to the standby splitting device port processes the network traffic.
In some embodiments, output identifiers corresponding to the ports of the splitting devices and the identifier information of the input network traffic are stored in advance. The traffic distribution module 402 is further configured to determine, according to the identification information of the network traffic and each output identifier, a distribution mapping relationship between each network traffic and each output identifier. The splitting module 404 is further configured to split each network flow to a splitting device port corresponding to the corresponding output identifier for outputting according to the allocation mapping relationship between each network flow and each output identifier.
In some embodiments, the traffic distribution module 402 is further configured to perform a hash operation according to the identification information of the network traffic, and determine a corresponding hash value; and determining an output identifier corresponding to the network flow according to the hash value.
In some embodiments, a correspondence between each output identifier and a port identifier of each splitter port is preset. The splitting module 404 is further configured to split the network traffic to the splitting device ports represented by the port identifiers corresponding to the output identifiers respectively according to the traffic distribution result. The identifier interchange module 408 is further configured to interchange a first output identifier corresponding to a port identifier of the splitter port corresponding to the fault point with a second output identifier corresponding to a port identifier of the backup splitter port, so that the splitter port represented by the port identifier corresponding to the first output identifier is changed into the backup splitter port.
In some embodiments, the preset initial value of the output identifier is the same as the port identifier of the corresponding splitter port; the output identification is preset to correspond to the same port identification.
In some embodiments, the fault monitoring module 406 is further configured to perform fault monitoring on each of the splitter ports in the splitter and the acquisition devices corresponding to each of the splitter ports; and triggering a switching instruction if at least one of the port of the shunt equipment and the acquisition equipment is monitored to be faulty. The identifier interchange module 408 is further configured to interchange, in response to the switching instruction, a first output identifier corresponding to the splitter port corresponding to the fault point with a second output identifier corresponding to the backup splitter port.
According to the split port switching device, the output identifiers are newly added, the split device ports corresponding to the output identifiers are not subjected to flow distribution according to the port identifiers of the split device ports, the split device ports corresponding to the output identifiers are subjected to flow distribution according to the flow distribution results, network flow is distributed to the split device ports corresponding to the output identifiers to be output, so that the acquisition devices corresponding to the split device ports process the network flow, the split device ports and the acquisition devices corresponding to the split device ports are subjected to fault monitoring in the split process, under the condition that faults occur, the first output identifiers corresponding to the split device ports corresponding to the fault points are interchanged with the second output identifiers corresponding to the standby split device ports, so that the split device ports corresponding to the first output identifiers are changed into the standby split device ports, when faults occur, the flow distribution is still performed by using the split device ports corresponding to the output identifiers of the fault points, the network flow corresponding to the original output identifiers is directly switched to the standby split device ports corresponding to be output after the interchange, the standby split device ports are subjected to fault detection, and the time delay is not required to be reduced, and the network flow is not required to be switched. In addition, as the flow distribution is not needed again, the network flow of the fault point can be switched to the spare shunting equipment ports for output, the components and the proportion of the network flow output by the rest shunting equipment ports are kept unchanged, and the load balancing and the homologous and homologous are realized. In addition, because the network flow output by each shunting equipment port is unchanged, the association relation between the network flow learned by the DPI system, the security analysis system and other systems can be continuously available, and a complete log can be generated.
The above-mentioned individual modules in the split port switching device may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules can be embedded in hardware or independent from a processor in the shunt device, or can be stored in a memory in the shunt device in software, so that the processor can call and execute operations corresponding to the above modules.
In one embodiment, a flow splitting device is provided, the internal structure of which may be as shown in FIG. 5. The tapping device comprises a processor, a memory and a network interface connected by a system bus. Wherein the processor of the shunt device is configured to provide computing and control capabilities. The memory of the shunt device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the distribution device is used for communicating with an external terminal through network connection. The computer program when executed by a processor implements a split port switching method.
It will be appreciated by those skilled in the art that the structure shown in fig. 5 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the shunt device to which the present inventive arrangements are applied, and that a particular shunt device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a shunt device is provided, comprising a memory, and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.
The user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as Static Random access memory (Static Random access memory AccessMemory, SRAM) or dynamic Random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (14)
1. A method for switching a split port, the method comprising:
according to each output identifier, carrying out flow distribution on the shunting equipment ports corresponding to each output identifier respectively; the output identifier is a preset identifier for uniquely characterizing the shunt link; the output identifiers are respectively provided with a corresponding shunting equipment port, and the shunting equipment ports corresponding to the output identifiers can be mutually exchanged;
According to the flow distribution result, network flow is distributed to the distribution equipment ports corresponding to the output identifiers to be output, so that the acquisition equipment corresponding to the distribution equipment ports processes the network flow;
performing fault monitoring on each shunt equipment port and the acquisition equipment corresponding to each shunt equipment port respectively;
under the condition that the fault is detected, exchanging a first output identifier corresponding to a shunting equipment port corresponding to a fault point with a second output identifier corresponding to a standby shunting equipment port so as to enable the shunting equipment port corresponding to the first output identifier to be changed into the standby shunting equipment port;
and switching the network traffic corresponding to the first output identifier to a corresponding standby shunting equipment port for output after interchange, so that standby acquisition equipment corresponding to the standby shunting equipment port processes the network traffic.
2. The method according to claim 1, wherein the output identifier corresponding to each of the split device ports and the identifier information of the input network traffic are stored in advance; the flow distribution for the ports of the distribution equipment corresponding to the output identifiers respectively according to the output identifiers comprises the following steps:
Determining an allocation mapping relation between each network flow and each output identifier according to the identifier information of the network flow and each output identifier;
the step of distributing the network traffic to the distribution equipment ports corresponding to the output identifiers for output according to the traffic distribution result comprises the following steps:
and according to the distribution mapping relation between the network traffic and the output identifiers, distributing the network traffic to the distribution equipment ports corresponding to the output identifiers for output.
3. The method of claim 2, wherein determining the allocation mapping between each of the network traffic and each of the output identifiers based on the identification information of the network traffic and each of the output identifiers comprises:
performing hash operation according to the identification information of the network traffic, and determining a corresponding hash value;
and determining the output identification corresponding to the network flow according to the hash value.
4. The method according to claim 1, wherein a correspondence relationship between each of the output identifiers and a port identifier of each of the splitter ports is preset; the step of distributing the network traffic to the distribution equipment ports corresponding to the output identifiers for output according to the traffic distribution result comprises the following steps:
According to the flow distribution result, network flow is shunted to shunting equipment ports represented by port identifiers corresponding to the output identifiers respectively for outputting;
exchanging the first output identifier corresponding to the shunting equipment port corresponding to the fault point with the second output identifier corresponding to the standby shunting equipment port, so that the shunting equipment port corresponding to the first output identifier is changed into the standby shunting equipment port, including:
exchanging a first output identifier corresponding to a port identifier of a shunting equipment port corresponding to a fault point with a second output identifier corresponding to a port identifier of a standby shunting equipment port, so that a shunting equipment port represented by the port identifier corresponding to the first output identifier is changed into the standby shunting equipment port.
5. The method of claim 4, wherein the preset initial value of the output identifier is the same as the port identifier of the corresponding split device port; the output identification is preset to correspond to the same port identification.
6. The method of claim 1, wherein the fault monitoring of each of the splitter ports and the collection device to which each of the splitter ports corresponds respectively comprises:
Performing fault monitoring on each shunt equipment port in the shunt equipment and the acquisition equipment corresponding to each shunt equipment port respectively through an automatic monitoring unit in the shunt equipment;
triggering a switching instruction if at least one of the shunt equipment port and the acquisition equipment is monitored to be faulty;
under the condition that the fault is monitored, exchanging the first output identifier corresponding to the shunt equipment port corresponding to the fault point with the second output identifier corresponding to the standby shunt equipment port comprises the following steps:
and responding to the switching instruction by the shunting equipment, and exchanging a first output identifier corresponding to the shunting equipment port corresponding to the fault point with a second output identifier corresponding to the standby shunting equipment port.
7. A split port switching device, the device comprising:
the flow distribution module is used for distributing the flow of the shunting equipment ports corresponding to the output identifiers respectively according to the output identifiers; the output identifier is a preset identifier for uniquely characterizing the shunt link; the output identifiers are respectively provided with a corresponding shunting equipment port, and the shunting equipment ports corresponding to the output identifiers can be mutually exchanged;
The distribution module is used for distributing the network traffic to the distribution equipment ports corresponding to the output identifiers according to the traffic distribution result so as to enable the acquisition equipment corresponding to the distribution equipment ports to process the network traffic;
the fault monitoring module is used for carrying out fault monitoring on each shunt equipment port and the acquisition equipment corresponding to each shunt equipment port respectively;
the device comprises an identifier interchange module, a first output identifier, a second output identifier and a backup distribution device port, wherein the identifier interchange module is used for interchanging a first output identifier corresponding to a distribution device port corresponding to a fault point with a second output identifier corresponding to the backup distribution device port under the condition that the fault is detected, so that the distribution device port corresponding to the first output identifier is changed into the backup distribution device port;
the distribution module is further configured to switch the network traffic corresponding to the first output identifier to a standby distribution device port corresponding to the exchanged network traffic for output, so that a standby acquisition device corresponding to the standby distribution device port processes the network traffic.
8. The apparatus of claim 7, wherein the output identifier corresponding to each of the splitter ports and the identifier information of the input network traffic are stored in advance;
The flow distribution module is further used for determining distribution mapping relations between the network flows and the output identifiers according to the identification information of the network flows and the output identifiers;
the distribution module is further configured to distribute each network flow to a corresponding distribution device port corresponding to the output identifier for output according to the distribution mapping relationship between each network flow and each output identifier.
9. The apparatus of claim 8, wherein the traffic distribution module is further configured to perform a hash operation according to the identification information of the network traffic, and determine a corresponding hash value; and determining the output identification corresponding to the network flow according to the hash value.
10. The apparatus of claim 7, wherein a correspondence between each of the output identifiers and a port identifier of each of the splitter ports is preset;
the distribution module is further used for distributing the network flow to the distribution equipment ports represented by the port identifiers corresponding to the output identifiers respectively according to the flow distribution result;
the identifier interchange module is further configured to interchange a first output identifier corresponding to a port identifier of a splitter port corresponding to a fault point with a second output identifier corresponding to a port identifier of a standby splitter port, so that a splitter port represented by the port identifier corresponding to the first output identifier becomes the standby splitter port.
11. The apparatus of claim 10, wherein the preset initial value of the output identifier is the same as the port identifier of the corresponding splitter port; the output identification is preset to correspond to the same port identification.
12. The apparatus of claim 7, wherein the fault monitoring module is further configured to perform fault monitoring on each of the splitter ports in the splitter and the acquisition device to which each of the splitter ports corresponds respectively; triggering a switching instruction if at least one of the shunt equipment port and the acquisition equipment is monitored to be faulty;
the identifier interchange module is further configured to interchange, in response to the switching instruction, a first output identifier corresponding to the splitter port corresponding to the fault point with a second output identifier corresponding to the spare splitter port.
13. A shunt device comprising a memory storing a computer program, and a processor, wherein the processor, when executing the computer program, implements the steps of the method of any one of claims 1 to 6.
14. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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| WO2019135249A1 (en) * | 2018-01-05 | 2019-07-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Data center failure management in an sdn deployment using border gateway node control |
| CN111404734B (en) * | 2020-03-06 | 2021-03-19 | 北京邮电大学 | Cross-layer network fault recovery system and method based on configuration migration |
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| CN105094001A (en) * | 2015-03-13 | 2015-11-25 | 霍尼韦尔环境自控产品（天津）有限公司 | Controller, and method and device for replacing I/O port of controller |
| CN109698788A (en) * | 2017-10-20 | 2019-04-30 | 华为技术有限公司 | Flow forwarding method and flow forwarding device |
| CN115065589A (en) * | 2022-06-06 | 2022-09-16 | 广州汇智通信技术有限公司 | Data traffic acquisition disaster recovery backup processing method, device, equipment, system and medium |
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