CN115842732B - Method for detecting MTU (modulation transfer unit) in distributed full path - Google Patents
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Abstract
The application relates to a method for detecting MTU in a distributed full path, which is characterized in that an IRC Channel is created for each link based on an IRC system, and all nodes in the link are added into the Channel; taking a link as a unit, each node on the link initiates an MTU detection task in a peer-to-peer mode and starts detection; when the minimum MTU is obtained by detection on the link, the detection is ended, and other nodes on the link are notified of the detection task ending; and taking the minimum MTU obtained by the current link as an MTU configuration value of the current link, and carrying out link configuration by all nodes on the link by using the MTU configuration value. The detection of the MTU is distributed on all the nanotube nodes of the same link, and the detection progress of the MTU is shared to all the nanotube nodes of the same link at any time, so that the detection efficiency is greatly accelerated; the MTU detection result is directly shared to all the nanotube nodes in the same link without being respectively configured; a new detection task can be initiated at any time, and network changes can be responded in time.
Description
Technical Field
The disclosure relates to the technical field of SD-WAN, and in particular, to a method, an apparatus and a control system for distributed full path detection MTU.
Background
The MTU is an important field in the IP protocol that determines the maximum packet length of a node, while for a link, the node with the minimum MTU determines the MTU value for the entire link.
The value of MTU is often an unusual value in the SD-WAN domain due to various uncertainties in operators, cloud platforms, tunneling. Generally, not all nodes on the whole link are in a managed state, so the MTU of the managed node generally moves to the MTU of the non-managed node, but the MTU is generally obtained through guessing, trying and other methods, the manual operation efficiency is low, some manufacturers provide a method for detecting the MTU by a single node, and an exhaustion method is used for searching a proper MTU value, so that the problem is solved to a certain extent.
However, single-node probing of MTUs is inefficient, mainly in two aspects:
each node needs to repeat the same detection, which wastes time and resources;
the probe values cannot be shared.
In addition, in the SD-WAN field, due to the introduction of multipath and intelligent pipeline technology, the MTU becomes a variable value, so that a more efficient and agile detection mode is needed for the distributed full-path MTU detection method.
Disclosure of Invention
In order to solve the above problems, the present application proposes a method, an apparatus and a control system for distributed full path probing MTU.
In one aspect of the present application, a method for detecting an MTU in a distributed full path is provided, including the following steps:
based on an IRC system, creating an IRC Channel for each link, and adding all nodes in the link into the Channel;
taking a link as a unit, each node on the link initiates an MTU detection task in a peer-to-peer mode and starts detection;
when the minimum MTU is obtained by detection on the link, the detection is ended, and other nodes on the link are notified of the detection task ending;
and taking the minimum MTU obtained by the current link as an MTU configuration value of the current link, and carrying out link configuration by all nodes on the link according to the MTU configuration value.
As an optional embodiment of the present application, optionally, creating an IRC Channel for each link based on the IRC system, and adding all nodes in the link to the Channel includes:
preset IRC construction conditions;
constructing an IRC system according to the IRC construction conditions;
based on the IRC system, establishing an IRC Channel for each link in the IRC system by taking the link as a unit, adding all nodes in each link into the Channel, and entering under a nano tube of the IRC system.
As an optional embodiment of the present application, optionally, in units of links, each node on the links initiates an MTU probing task in a peer-to-peer manner, and starts probing, including:
presetting an initiating condition of an MTU detection task, and configuring the initiating condition on the IRC system;
when the initiating condition is triggered, taking a link as a unit, enabling all nodes on a Channel of the link to initiate an MTU detection task in a peer-to-peer mode;
and each node executes an MTU detection task, starts MTU detection on the link where the MTU detection task is located, and obtains the MTU of each node respectively.
As an optional embodiment of the present application, optionally, when the initiation condition is triggered, further comprising:
the task initiator receives the MTU detection task;
the task initiator performs task cutting and distribution on the MTU detection task, and distributes the cut task to each node on a link;
each node receives the corresponding assigned task and begins probing.
As an optional embodiment of the present application, optionally, when the probe obtains the minimum MTU on the link, the probe ends, and notifies other nodes on the link of the end of the probe task, including:
each node executes the distributed detection task and detects the MTU of all nodes on the Channel downwards;
acquiring MTU detected by each node executing task, and acquiring the minimum MTU in all nodes corresponding to the detected Channel from the MTU detected by all nodes;
when the minimum MTU corresponding to the detected Channel is obtained, the detection is ended, and other nodes on the link Channel are informed of the end of the detection task.
As an optional embodiment of the present application, optionally after notifying other nodes on the link Channel of the end of the probing task, the method further includes:
other nodes on the link Channel receive notification of the end of the detection task and discard the detection task allocated currently;
the task initiator performs task cutting and distribution on the MTU detection task again, and distributes the cut task to other nodes on a link Channel;
other nodes on the link Channel receive the corresponding assigned tasks and begin probing.
As an optional embodiment of the present application, optionally, taking the minimum MTU obtained by the current link as the MTU configuration value of the current link, all nodes on the link perform link configuration with the MTU configuration value, including:
when the MTU detection task on the link Channel is executed, a final detection result on the link Channel is obtained;
the node generating the final detection result notifies all nodes on the link Channel of ending tasks, and simultaneously shares and notifies all nodes on the link Channel of the final detection result;
and all nodes on the link Channel receive the final detection result, and the final detection result is taken as an MTU configuration value of the node.
In another aspect of the present application, an apparatus for implementing the method for distributed full path probing MTU is provided, including:
the IRC application module is used for creating an IRC Channel for each link based on an IRC system and adding all nodes in the link into the Channel;
the MTU detection task module is used for initiating an MTU detection task in a peer-to-peer mode by taking a link as a unit and starting detection by each node on the link;
the detection task sharing module is used for finishing detection when the minimum MTU is obtained by detection on the link and notifying other nodes on the link of finishing detection tasks;
and the link configuration module is used for taking the minimum MTU obtained by the current link as the MTU configuration value of the current link, and all nodes on the link perform link configuration by using the MTU configuration value.
In another aspect of the present application, there is also provided a control system, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement the method of distributed full path probing MTUs when executing the executable instructions.
The invention has the technical effects that:
according to the method, an IRC Channel is created for each link based on an IRC system, and all nodes in the link are added into the Channel; taking a link as a unit, each node on the link initiates an MTU detection task in a peer-to-peer mode and starts detection; when the minimum MTU is obtained by detection on the link, the detection is ended, and other nodes on the link are notified of the detection task ending; and taking the minimum MTU obtained by the current link as an MTU configuration value of the current link, and carrying out link configuration by all nodes on the link according to the MTU configuration value. The detection of the MTU is distributed on all the nanotube nodes of the same link, and the detection progress of the MTU is shared to all the nanotube nodes of the same link at any time, so that the detection efficiency is greatly accelerated; the MTU detection result is directly shared to all the nanotube nodes in the same link without being respectively configured; a new detection task can be initiated at any time, and network changes can be responded in time.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of an implementation flow of a method for distributed full path probing of MTUs in accordance with the present invention;
fig. 2 shows a schematic diagram of an MTU probing path of the present invention;
FIG. 3 is a schematic diagram of a link for establishing a link IRC Channel using the IRC system according to the invention;
fig. 4 shows a schematic diagram of an MTU probing path on a link Channel as an example of mtu=1340 in the present invention;
fig. 5 shows a schematic diagram of the MTU probe path for the new task of the present invention.
Detailed Description
Various exemplary embodiments, features and aspects of the disclosure will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
In addition, numerous specific details are set forth in the following detailed description in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order not to obscure the present disclosure.
The invention takes the links as units, each link creates an IRC Channel, and all nodes in the link join the Channel. Taking a link as a unit, all nodes in the IRC Channel initiate MTU detection tasks in a peer-to-peer mode, allocate tasks, modify tasks and share the results of the tasks (as configuration), and the two tasks of allocating tasks and modifying tasks are key to exponentially improving the detection speed.
Example 1
As shown in fig. 1, in one aspect, the present application proposes a method for detecting MTU in a distributed full path, including the following steps:
s1, creating an IRC Channel for each link based on an IRC system, and adding all nodes in the link into the Channel;
s2, taking a link as a unit, each node on the link initiates an MTU detection task in a peer-to-peer mode, and starts detection;
s3, when the minimum MTU is obtained by detection on the link, the detection is ended, and other nodes on the link are notified of the detection task ending;
s4, taking the minimum MTU obtained by the current link as an MTU configuration value of the current link, and carrying out link configuration by all nodes on the link according to the MTU configuration value.
As shown in fig. 2, the basic idea of probing MTU is as follows:
the value of MTU is typically distributed over several hundred to 1500, with 9000 even higher MTUs being possible in the case of a Jumbo Frame being supported, although the situation of a Jumbo Frame is generally not considered;
the MTU value is detected from 1500 downwards, the initial step size is 100, i.e. the rhythm of 1500, 1400 and 1300 is downwards, if detected, the step size is changed to 10, and then detected is changed to 1 until the accurate value is detected.
According to the IRC system, each link corresponds to one Channel by taking the link as a unit, and all the nanotube nodes (nodes controlled by the system) in the link can be added into the corresponding Channel (one node can be added into a plurality of channels). As shown in fig. 3, in this embodiment, a Channel is disposed between #bj-SH and each of BJ001, NJ001, SH001, and each node on the Channel is located under a nanotube of the IRC system.
After the IRC platform is established, links where all application nodes are located are added into the IRC platform. Taking a link as a unit, all nodes in the IRC Channel initiate MTU detection tasks in a peer-to-peer mode, allocate tasks, modify tasks and share the results of the tasks (as configuration); distributing the detection of MTU on all the nano-tube nodes of the same link; the MTU detection results are directly shared to all the nanotube nodes in the same link, after the results are not required to be respectively configured, the nodes generating the results can inform all the node tasks to finish, invalid attempts are not performed any more, and meanwhile, the results can be notified to all the nodes in the Channel, so that all the nodes in the Channel are configured by the minimum MTU of the detection results.
The practice of the present application will be described in detail below.
As an optional embodiment of the present application, optionally, creating an IRC Channel for each link based on the IRC system, and adding all nodes in the link to the Channel includes:
preset IRC construction conditions;
constructing an IRC system according to the IRC construction conditions;
based on the IRC system, establishing an IRC Channel for each link in the IRC system by taking the link as a unit, adding all nodes in each link into the Channel, and entering under a nano tube of the IRC system.
Construction and use of IRC systems can be seen in the application of the invention filed by the applicant: application number 2021111259217-communication method and device for realizing multi-party network node intercommunication based on IRC platform.
Nodes of the whole link are added into an IRC system, each link creates an IRC Channel, and all nodes in the link are added into the Channel; taking a link as a unit, all nodes in the IRC Channel initiate MTU detection tasks in a peer-to-peer mode, allocate tasks, modify tasks and share the results of the tasks (as configuration); the probing of the MTU is distributed over all nanotube nodes co-linked.
As an optional embodiment of the present application, optionally, in units of links, each node on the links initiates an MTU probing task in a peer-to-peer manner, and starts probing, including:
presetting an initiating condition of an MTU detection task, and configuring the initiating condition on the IRC system;
when the initiating condition is triggered, taking a link as a unit, enabling all nodes on a Channel of the link to initiate an MTU detection task in a peer-to-peer mode;
and each node executes an MTU detection task, starts MTU detection on the link where the MTU detection task is located, and obtains the MTU of each node respectively.
Each node in the Channel has the right to initiate the task of MTU detection, and the reason for initiating the task may be timing trigger or discovery that the MTU in the link has changed (e.g. sending a big packet that should pass is rejected).
It is therefore first necessary to create an initiation condition that triggers the MTU probing task, and when the link meets the trigger condition, the MTU probing task will be automatically initiated.
The initiation condition of the MTU detection task is set by the user according to the link condition, for example, the above-mentioned timing trigger may also be triggered by finding that the MTU in the link has changed. The system monitors the link in real time, and when the condition that the initiating condition triggering the MTU detection task is met is found, the system starts to execute the MTU detection task.
When the MTU detection task is executed, each node in each link Channel has the right to initiate MTU detection, the node on each link is used for downwards detecting the MTU value of each node in the Channel according to the running direction of the link by taking the node as a reference, and the MTU values of all the nodes in the Channel are obtained and stored.
Each node in the Channel in each link executes the detection task, and distributed full-path MTU detection is realized, namely, all nodes in the IRC Channel initiate the MTU detection task in a peer-to-peer mode, and each MTU on each node link is obtained (the MTU of each node in the Channel link is detected downwards based on the node itself).
The detection of the MTU is distributed on all the nanotube nodes of the same link, and the detection progress of the MTU is shared to all the nanotube nodes of the same link at any time, so that the detection efficiency is greatly accelerated; the MTU detection result is directly shared to all the nanotube nodes in the same link without being respectively configured.
The IRC platform has a plurality of different links, the number of nodes on the link channels and the like can be different, so that task cutting and distribution are carried out by a task initiator, the nodes on each link Channel simultaneously initiate MTU detection tasks in a peer-to-peer mode, distribute tasks, modify tasks and share tasks, so that new detection tasks can be initiated at any time, network changes can be responded in time, and the detection speed is exponentially improved through task distribution and task modification.
As an optional embodiment of the present application, optionally, when the initiation condition is triggered, further comprising:
the task initiator receives the MTU detection task;
the task initiator performs task cutting and distribution on the MTU detection task, and distributes the cut task to each node on a link;
each node receives the corresponding assigned task and begins probing.
The MTU detection task is specifically created according to the initiation condition of the MTU detection task, and task execution content can be specifically set by a task initiator. And the task initiator performs task cutting and distribution on the MTU detection task, distributes the cut task to each node on the link, and initiates the MTU detection task in a peer-to-peer mode by all nodes in the IRC Channel, distributes the task and modifies the task.
Each node can receive the specific task segmented by the task initiator, and the MTU detection task of the Channel link where the node is located is correspondingly executed according to the received distributed task.
As an optional embodiment of the present application, optionally, when the probe obtains the minimum MTU on the link, the probe ends, and notifies other nodes on the link of the end of the probe task, including:
each node executes the distributed detection task and detects the MTU of all nodes on the Channel downwards;
acquiring MTU detected by each node executing task, and acquiring the minimum MTU in all nodes corresponding to the detected Channel from the MTU detected by all nodes;
when the minimum MTU corresponding to the detected Channel is obtained, the detection is ended, and other nodes on the link Channel are informed of the end of the detection task.
When each node executes the allocated detection task, taking the node as a reference to downwards detect the MTU of all nodes on the current link Channel, and obtaining the MTU of all nodes on the link Channel where the current node is located; all nodes on each link Channel do so. Each node will obtain a corresponding MTU set for the detection task attributed to the node itself, as shown in fig. 4, when the node 1400 starts to detect, the detection is performed downwards, and all nodes on the link Channel where the node 1400 is located, such as 1400, 1390, 1380.
As shown in fig. 4, for example, the original probing from 1500 is divided into a plurality of tasks from 1500, 1400, 1300, and the like, and the tasks are simultaneously and downward probed with 10 steps, a plurality of nodes simultaneously accept the tasks, the probing is started, the minimum MTU in all nodes of each Channel is detected, and the probing is ended.
As an optional embodiment of the present application, optionally after notifying other nodes on the link Channel of the end of the probing task, the method further includes:
other nodes on the link Channel receive notification of the end of the detection task and discard the detection task allocated currently;
the task initiator performs task cutting and distribution on the MTU detection task again, and distributes the cut task to other nodes on a link Channel;
other nodes on the link Channel receive the corresponding assigned tasks and begin probing.
For example, taking a minimum mtu=1348 of a certain node on a certain link, when a minimum MTU value is detected on each link, the node on the link that currently generates the minimum MTU result will notify all nodes that the task ends and no invalid attempt is performed, and at the same time, notify all nodes in the Channel of the result 1348, so that all nodes in the current link Channel are configured with mtu=1348.
As an optional embodiment of the present application, optionally, taking the minimum MTU obtained by the current link as the MTU configuration value of the current link, all nodes on the link perform link configuration with the MTU configuration value, including:
when the MTU detection task on the link Channel is executed, a final detection result on the link Channel is obtained;
the node generating the final detection result notifies all nodes on the link Channel of ending tasks, and simultaneously shares and notifies all nodes on the link Channel of the final detection result;
and all nodes on the link Channel receive the final detection result, and the final detection result is taken as an MTU configuration value of the node.
And a plurality of nodes simultaneously receive tasks, start detection, detect the minimum MTU in all nodes of each Channel, and end the detection. As shown in fig. 4, taking the previous mtu=1340 as an example, only the node that is assigned to 1400 tasks can detect, the node that is assigned to 1500 tasks cannot obtain the result, and the node that is assigned to 1300 and below can learn that the task assigned to itself is invalid when the node is detected for the first time. So the node that gets 1400 tasks will notify all nodes that its own task is valid when 1340 is detected, let all other nodes discard the existing task and get new tasks.
As shown in fig. 5, the new task is also allocated, for example, divided into five tasks 1349, 1347, 1345, 1343, 1341, so that five nodes can detect at the same time and obtain the result quickly. The specific task executing process is the same as above, and will not be described in detail here.
After the result is generated, the node generating the result notifies all nodes that the task is finished and no invalid attempt is made, and at the same time, the result 1348 is notified to all nodes in the Channel, so that all nodes are configured with mtu=1348.
In the embodiment, the triggering, the distributing, the modifying and the updating of the whole task and the sharing of the result are realized by means of an IRC platform, the detection of the MTU is distributed on all the nanotube nodes of the same link, the detection progress of the MTU is shared to all the nanotube nodes of the same link at any time, and the detection efficiency is greatly accelerated; the MTU detection result is directly shared to all the nanotube nodes in the same link, and the MTU detection result does not need to be configured respectively, so that a new detection task can be initiated at any time, and the network change can be responded timely.
It should be apparent to those skilled in the art that the implementation of all or part of the above-described embodiments of the method may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the steps of the embodiments of the control methods described above when executed.
It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment methods may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the embodiment flow of each control method as described above when executed. The storage medium may be a magnetic disk, an optical disc, a Read-only memory (ROM), a random access memory (RandomAccessMemory, RAM), a flash memory (flash memory), a hard disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Example 2
Based on the implementation principle of embodiment 1, in another aspect of the present application, an apparatus for implementing the method for distributed full path probing MTU is provided, including:
the IRC application module is used for creating an IRC Channel for each link based on an IRC system and adding all nodes in the link into the Channel;
the MTU detection task module is used for initiating an MTU detection task in a peer-to-peer mode by taking a link as a unit and starting detection by each node on the link;
the detection task sharing module is used for finishing detection when the minimum MTU is obtained by detection on the link and notifying other nodes on the link of finishing detection tasks;
and the link configuration module is used for taking the minimum MTU obtained by the current link as the MTU configuration value of the current link, and all nodes on the link perform link configuration by using the MTU configuration value.
The functions and interaction principles of the above modules are described in embodiment 1, and this embodiment is not repeated.
The modules or steps of the invention described above may be implemented in a general-purpose computing device, they may be centralized in a single computing device, or distributed across a network of computing devices, or they may alternatively be implemented in program code executable by a computing device, such that they may be stored in a memory device and executed by a computing device, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
Example 3
Still further, another aspect of the present application provides a control system, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement the method of distributed full path probing MTUs when executing the executable instructions.
Embodiments of the present disclosure control a system that includes a processor and a memory for storing processor-executable instructions. Wherein the processor is configured to implement any of the methods of distributed full path probing MTUs described above when executing the executable instructions.
Here, it should be noted that the number of processors may be one or more. Meanwhile, in the control system of the embodiment of the present disclosure, an input device and an output device may be further included. The processor, the memory, the input device, and the output device may be connected by a bus, or may be connected by other means, which is not specifically limited herein.
The memory is a computer-readable storage medium that can be used to store software programs, computer-executable programs, and various modules, such as: the method for detecting the MTU through the distributed full path in the embodiment of the disclosure corresponds to a program or a module. The processor executes various functional applications and data processing of the control system by running software programs or modules stored in the memory.
The input device may be used to receive an input number or signal. Wherein the signal may be a key signal generated in connection with user settings of the device/terminal/server and function control. The output means may comprise a display device such as a display screen.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement of the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. The method for detecting the MTU by the distributed full path is characterized by comprising the following steps:
based on an IRC system, creating an IRC Channel for each link, and adding all nodes in the link into the Channel;
taking a link as a unit, each node on the link initiates an MTU detection task in a peer-to-peer mode and starts detection;
when the minimum MTU is obtained by detection on the link, the detection is ended, and other nodes on the link are notified of the detection task ending;
the MTU value is detected downwards from 1500, the initial step length is 100, namely, the rhythm of 1500, 1400 and 1300 is downwards, if the MTU value is detected, the step length is changed to 10, and then the MTU value is detected, and the MTU value is changed to 1 until the MTU value is detected to an accurate value;
and taking the minimum MTU obtained by the current link as an MTU configuration value of the current link, and carrying out link configuration by all nodes on the link according to the MTU configuration value.
2. The method of distributed full path probing MTU of claim 1, wherein creating an IRC Channel for each link based on the IRC system and adding all nodes in the link to the Channel comprises:
preset IRC construction conditions;
constructing an IRC system according to the IRC construction conditions;
based on the IRC system, establishing an IRC Channel for each link in the IRC system by taking the link as a unit, adding all nodes in each link into the Channel, and entering under a nano tube of the IRC system.
3. The method of distributed full path probing MTU according to claim 1, wherein each node on the link initiates an MTU probing task in a peer-to-peer manner in units of links, starting probing, comprising:
presetting an initiating condition of an MTU detection task, and configuring the initiating condition on the IRC system;
when the initiating condition is triggered, taking a link as a unit, enabling all nodes on a Channel of the link to initiate an MTU detection task in a peer-to-peer mode;
and each node executes an MTU detection task, starts MTU detection on the link where the MTU detection task is located, and obtains the MTU of each node respectively.
4. A method of distributed full path probing MTUs as recited in claim 3 further comprising, when triggering the initiation condition:
the task initiator receives the MTU detection task;
the task initiator performs task cutting and distribution on the MTU detection task, and distributes the cut task to each node on a link;
each node receives the corresponding assigned task and begins probing.
5. A method for distributed full path probing MTU as recited in claim 3 wherein when a minimum MTU is obtained by probing on said link, the probing ends and notifying other nodes on the link of the end of the probing task comprising:
each node executes the distributed detection task and detects the MTU of all nodes on the Channel downwards;
acquiring MTU detected by each node executing task, and acquiring the minimum MTU in all nodes corresponding to the detected Channel from the MTU detected by all nodes;
when the minimum MTU corresponding to the detected Channel is obtained, the detection is ended, and other nodes on the link Channel are informed of the end of the detection task.
6. The method for distributed full path probing MTU of claim 5, further comprising, after notifying other nodes on the link Channel of the end of the probing task:
other nodes on the link Channel receive notification of the end of the detection task and discard the detection task allocated currently;
the task initiator performs task cutting and distribution on the MTU detection task again, and distributes the cut task to other nodes on a link Channel;
other nodes on the link Channel receive the corresponding assigned tasks and begin probing.
7. The method for detecting MTU of distributed full path according to claim 1, wherein the minimum MTU obtained by the current link is taken as the MTU configuration value of the current link, and all nodes on the link perform link configuration according to the MTU configuration value, including:
when the MTU detection task on the link Channel is executed, a final detection result on the link Channel is obtained;
the node generating the final detection result notifies all nodes on the link Channel of ending tasks, and simultaneously shares and notifies all nodes on the link Channel of the final detection result;
and all nodes on the link Channel receive the final detection result, and the final detection result is taken as an MTU configuration value of the node.
8. An apparatus for implementing the method of distributed full path probing MTU of any one of claims 1-7, comprising:
the IRC application module is used for creating an IRC Channel for each link based on an IRC system and adding all nodes in the link into the Channel;
the MTU detection task module is used for initiating an MTU detection task in a peer-to-peer mode by taking a link as a unit and starting detection by each node on the link;
the detection task sharing module is used for finishing detection when the minimum MTU is obtained by detection on the link and notifying other nodes on the link of finishing detection tasks;
and the link configuration module is used for taking the minimum MTU obtained by the current link as the MTU configuration value of the current link, and all nodes on the link perform link configuration by using the MTU configuration value.
9. A control system, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement the method of distributed full path probing MTU of any one of claims 1-7 when executing the executable instructions.
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