CN106656857B - Message speed limiting method and device - Google Patents
Message speed limiting method and device Download PDFInfo
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- CN106656857B CN106656857B CN201611250007.4A CN201611250007A CN106656857B CN 106656857 B CN106656857 B CN 106656857B CN 201611250007 A CN201611250007 A CN 201611250007A CN 106656857 B CN106656857 B CN 106656857B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9005—Buffering arrangements using dynamic buffer space allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
Abstract
The application provides a message speed limiting method and device, which are applied to distributed network equipment. The method comprises the following steps: when the service board sends the received protocol message to the main control board, judging whether the protocol type of the protocol message supports multiple message types; if the protocol type of the protocol message supports multiple message types, determining the message type of the protocol message, and adding the protocol message to a speed limit queue corresponding to the message type; when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold value, the protocol messages are uploaded to the main control board; wherein, different message types respectively correspond to different speed limit queues. By adopting the technical scheme shown in the application, the stability of network operation can be improved.
Description
Technical Field
The present application relates to the field of network communication technologies, and in particular, to a method and an apparatus for limiting a message speed.
Background
At present, distributed network devices are widely applied to networks due to rich service processing capability, strong forwarding performance and the like, wherein the distributed network devices generally comprise a main control board and a service board. When the service board receives the message, the service board may upload the local message to the main control board CPU, the main control board CPU processes the local message, upload the service message to the service board CPU, and forward the service message by the service board CPU.
Because the processing capacity of the main control board CPU is limited, when the service board sends a large number of native messages to the main control board CPU, the main control board CPU cannot normally process native messages within the capacity range, and thus, after receiving a large number of native messages, the main control board CPU may cause network paralysis or device disconnection. In order to ensure the stability of the network, it is very important to protect the CPU of the main control board.
Disclosure of Invention
In view of this, the present application provides a method and an apparatus for limiting a message speed, which are applied to a distributed network device and improve stability of a network during operation.
Specifically, the method is realized through the following technical scheme:
a message speed limiting method is applied to distributed network equipment, the distributed network equipment comprises a main control board and at least one service board, and the method comprises the following steps:
when the service board sends the received protocol message to the main control board, judging whether the protocol type of the protocol message supports multiple message types;
if the protocol type of the protocol message supports multiple message types, determining the message type of the protocol message;
adding the protocol message to a speed limit queue corresponding to the message type, and uploading the protocol message to the main control board when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold; wherein, different message types respectively correspond to different speed limit queues.
A message speed limiting device is applied to distributed network equipment, wherein the distributed network equipment comprises a main control board and at least one service board, and comprises:
the judging unit is used for judging whether the protocol type of the protocol message supports various message types when the service board sends the received protocol message to the main control board;
a determining unit, configured to determine a packet type of the protocol packet if the protocol type of the protocol packet supports multiple packet types;
the uploading unit is used for adding the protocol message to a speed limit queue corresponding to the message type and uploading the protocol message to the main control board when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold; wherein, different message types respectively correspond to different speed limit queues.
Because various different types of messages in the same protocol type are added to different speed limit queues, and speed limit thresholds are respectively set for various different types of protocol messages. Therefore, the distributed network equipment can control different types of protocol messages in the same protocol type in a more detailed manner, and the stability of network operation is improved.
Drawings
Fig. 1 is a flowchart illustrating a method for limiting a message speed according to an exemplary embodiment of the present application;
FIG. 2 illustrates a schematic diagram of a speed limit queue according to an exemplary embodiment of the present application;
fig. 3 is a hardware structure diagram of a distributed network device where a message speed limiting device is located according to the present application;
fig. 4 is a diagram illustrating an apparatus for limiting a message speed according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the prior art, a distributed network device includes a main control board and at least one service board. The distributed network equipment comprises a plurality of speed limit queues, wherein a plurality of protocol messages of the same protocol are cached in each speed limit queue. When the service board receives the protocol message, the service board can judge the protocol type of the protocol message, and then add the protocol message to the speed limit queue corresponding to the protocol type according to the protocol type.
Because the processing capacity of the main control board CPU is limited, when the number of a large number of protocol messages sent to the main control board CPU on the service board exceeds the processing capacity of the main control board CPU, network paralysis can be caused. Therefore, in the prior art, the speed limit threshold is set for the speed limit queue at the distributed network device. When any protocol message is added to any speed limit queue, and the number of the protocol messages in the speed limit queue exceeds a preset speed limit threshold value, the protocol message can be discarded.
However, in the prior art, when the critical packet in the protocol is discarded, the service of the protocol may be abnormally interrupted, and even a network failure may be caused. For example, when the discarded packet is a keep-alive packet of the routing protocol, a neighbor of the routing protocol may interrupt connection with the device, thereby causing a routing oscillation failure of the network.
Therefore, in order to solve the problems in the prior art, the application provides a method and a device for limiting the speed of a message, which are applied to distributed network equipment, and determine whether the protocol type of the protocol message supports multiple message types when a service board sends a received protocol message to a main control board; if the protocol type of the protocol message supports multiple message types, determining the message type of the protocol message, and adding the protocol message to a speed limit queue corresponding to the message type; when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold value, the protocol messages are uploaded to the main control board; wherein, different message types respectively correspond to different speed limit queues.
Because various different types of messages in the same protocol type are added to different speed limit queues, and speed limit thresholds are respectively set for various different types of protocol messages. Therefore, the distributed network equipment can control different types of protocol messages in the same protocol type in a more detailed manner, and the stability of network operation is improved.
Referring to fig. 1, fig. 1 is a flowchart of a method for limiting a message speed according to an exemplary embodiment of the present application, which is applied to a distributed network device and specifically executes the following steps:
step 101: when the service board sends the received protocol message to the main control board, judging whether the protocol type of the protocol message supports multiple message types;
for example, the protocol packet is a packet of a routing protocol, and the routing protocol includes many protocols, such as OSPF protocol and BGP protocol.
The OSPF protocol and the BGP protocol support multiple message types, and both the OSPF protocol and the BGP protocol comprise keep-alive messages and non-keep-alive messages. Step 102: if the protocol type of the protocol message supports multiple message types, determining the message type of the protocol message, and adding the protocol message to a speed limit queue corresponding to the message type; when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold value, the protocol messages are uploaded to the main control board; wherein, different message types respectively correspond to different speed limit queues.
In the embodiment shown in the present application, the distributed network device includes a main control board and at least one service board. The main control board is used for managing the whole distributed network equipment, issuing configuration parameters and processing messages of the local machine. The service board is used for analyzing the received message, sending the message of the machine to the main control board and forwarding the service message.
In addition, a plurality of speed limit queues are pre-configured in the distributed network equipment, wherein messages of different message types in the same protocol type or messages of which the message types cannot be distinguished in the same protocol type are added into one speed limit queue. And respectively adding the messages of different specific message types in the same protocol type to different speed limit queues according to the message types of the messages.
Referring to fig. 2, fig. 2 is a schematic diagram of a speed limit queue according to an exemplary embodiment of the present application.
In fig. 2, messages of different message types in the same type are added to the corresponding speed limit queues according to the message types of the messages.
Generally, in the network operation, the number of the messages of different message types is not equal, so that when the speed limit threshold values in different speed limit queues are set, the speed limit threshold values can be set respectively according to the requirements.
In this embodiment, when the service board receives a packet, the service board may search the routing table according to the destination IP address of the packet. When the destination IP address is the device, it indicates that the message is a protocol message, and then the service board needs to send the message to the main control board. And when the destination IP address is not the equipment, forwarding the message according to the searched forwarding information corresponding to the message.
In an embodiment shown, if the message is a protocol message that needs to be sent to the main control board, the service board may determine whether the protocol type of the protocol message supports multiple message types. For example, when the protocol packet is a routing protocol packet, the routing protocol supports multiple packet types, including a keep-alive packet and a non-keep-alive packet.
If the protocol type of the protocol packet supports multiple packet types, in such a case, the service board may determine to which packet type the protocol packet belongs. And then adding the protocol message into a speed limit queue corresponding to the protocol message.
For example, if the protocol packet belongs to a keep-alive packet in a routing protocol packet, the protocol packet may be added to a rate-limiting queue of the keep-alive packet.
When the protocol message is added to the corresponding speed limit queue, the service board can judge whether the number of the messages in the speed limit queue exceeds the speed limit threshold value set for the speed limit queue. If the number of the messages in the speed limit queue exceeds the speed limit threshold value set for the speed limit queue, the service board can discard the protocol message; if the number of the messages in the speed limit queue does not exceed the speed limit threshold value set for the speed limit queue, the service board can send the protocol message to the main control board.
If the protocol type of the protocol message does not support multiple message types, in such a case, the service board may add the protocol message to the speed limit queue corresponding to the protocol message. Then the service board can judge whether the number of the messages in the speed limit queue exceeds the speed limit threshold value set for the speed limit queue. If the number of the messages in the speed limit queue exceeds the speed limit threshold value set for the speed limit queue, the service board can discard the protocol message; if the number of the messages in the speed limit queue does not exceed the speed limit threshold value set for the speed limit queue, the service board can send the protocol message to the main control board.
By the mode, various messages of different types in the same protocol type are added into different speed limit queues, and speed limit thresholds are respectively set for the protocol messages of different types, so that the messages of different types in the same protocol message can be more finely controlled, and the stability of network operation is improved.
In the technical scheme provided by the application, the priority of the multiple types supported by the protocol type of the protocol message is different. And when the protocol message is a routing protocol message, the message type with high priority is a keep-alive message, and the message type with low priority is a non-keep-alive message.
By adopting the mode, the service board can preferentially upload the protocol message with higher priority to the main control board without being discarded, and preferentially discard the protocol message with lower priority. Because the higher priority protocol message plays a greater role in network operation, the adoption of the mode can improve the stability of network operation.
Taking the Protocol packet as a routing Protocol packet, where the routing Protocol is OSPF (Open shortest path First) and BGP (Border Gateway Protocol) as examples.
Firstly, protocols of different types can be divided into two types, wherein the first type is a message of the protocol which does not need to be distinguished or is difficult to distinguish a specific internal type, and the message is added into a speed limit queue; the second type is a message of a protocol which needs to distinguish internal types; such as OSPF and BGP. Because the two protocols include the keep-alive message and the non-keep-alive message, the keep-alive message is important for maintaining the stability of network operation, and therefore for the messages of the two protocols, the keep-alive message and the non-keep-alive message in the protocol need to be added to different speed-limiting queues.
In this example, keep-alive messages are added to the speed limit queue 1, and non-keep-alive messages are added to the speed limit queue 2.
Because different types of messages have priorities, when the speed limit threshold is set for the speed limit queues, the speed limit threshold can be set for each speed limit queue according to the number of the messages of different message types. For example, the number of keep-alive messages is small, and the number of non-keep-alive messages is large, so the speed limit threshold of the speed limit queue 1 is smaller than the speed limit threshold of the speed limit queue 2.
When a service board of the distributed network device receives a message sent by an opposite-end distributed network device, if the message is a local message, the service board needs to send the message to the main control board. When the message is sent to the main control board, the service board may first determine whether the message is the first type message or the second type message as described in this example.
And if the message is the first type of message, adding the message to the speed limit queue corresponding to the first type of message. If the packet is the second type of packet, in this example, the packet is an OSPF and BGP protocol packet, it needs to be further determined whether the packet is a keep-alive packet.
For judging whether the OSPF protocol message is a keep-alive message, judging whether the TYPE field of the OSPF header is 1, if so, indicating that the OSPF protocol message is a HELLO message (namely the keep-alive message); if not, the message is a non-keep-alive message.
For judging whether the BGP protocol message is a keep-alive message, judging whether the TYPE field of the BGP header is 4, if so, indicating that the message is a KEEPALIVE message (namely the keep-alive message); if not, the message is a non-keep-alive message.
If the message is a keep-alive message, adding the message to a speed limit queue 1; if the message is a non-keep alive message, the message is added to the rate limit queue 2.
Referring to table 1, table 1 is a speed limit queue schematic table of a routing protocol according to an exemplary embodiment of the present application.
| B | B | B | B | B | B | B | B | A |
TABLE 1
According to the prior art, an OSPF protocol message or a BGP message is directly added to a speed limit queue corresponding to a routing protocol. Wherein, B in table 1 is a non-keep-alive message, and a is a keep-alive message. When the number of the messages in the speed limit queue exceeds a preset speed limit threshold, the device discards the keep-alive message a, so that the stability of network operation is affected, and even a network fault occurs.
Referring to table 2, table 2 is an exemplary table of the speed limit queue 1 according to an exemplary embodiment of the present application.
Referring to table 3, table 3 is an exemplary table of the speed limit queue 2 according to an exemplary embodiment of the present application.
| A |
TABLE 2
| B | B | B | B | B | B | B | B |
TABLE 3
According to the technical scheme provided by the application, because the message A is a keep-alive message, the service board needs to add the message A to the speed limit queue 1 shown in the table 2; since the message B is a non-keep-alive message, the service board adds the message B to the speed limit queue 2 shown in table 3.
When the service board receives a large number of messages B and the number of the messages in the speed limit queue exceeds a preset speed limit threshold value, the equipment discards the messages which are subsequently added to the speed limit queue, and the message A is added to another speed limit queue, so that the service board cannot discard the message A, and the stability of network operation can be maintained.
According to the technical scheme provided by the application, when the service board uploads the received protocol message to the main control board, whether the protocol type of the protocol message supports multiple message types is judged; if the protocol type of the protocol message supports multiple message types, determining the message type of the protocol message, and adding the protocol message to a speed limit queue corresponding to the message type; when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold value, the protocol messages are uploaded to the main control board; wherein, different message types respectively correspond to different speed limit queues.
Because various different types of messages in the same protocol type are added to different speed limit queues, and speed limit thresholds are respectively set for various different types of protocol messages. Therefore, the distributed network equipment can control different types of protocol messages in the same protocol type in a more detailed manner, and the stability of network operation is improved.
Corresponding to the embodiment of the message speed limiting method, the application also provides an embodiment of a message speed limiting device.
The embodiment of the message speed limiting device can be applied to distributed network equipment. The device embodiments may be implemented by software, or by hardware, or by a combination of hardware and software. Taking a software implementation as an example, as a logical device, the device is formed by reading a corresponding computer program instruction in the nonvolatile memory into the memory for operation through the processor of the distributed network device where the device is located. From a hardware aspect, as shown in fig. 3, the present application is a hardware structure diagram of a distributed network device where a message speed limiting device is located, where in addition to the processor, the memory, the network interface, and the nonvolatile memory shown in fig. 3, the distributed network device where the device is located in the embodiment may also include other hardware according to an actual function of the message speed limiting, which is not described again.
Referring to fig. 4, fig. 4 is a diagram illustrating an exemplary embodiment of a message speed limiting apparatus applied to a distributed network device, where the distributed network device includes a main control board and at least one service board, and the apparatus includes: a judging unit 410, a determining unit 420 and an uploading unit 430.
The determining unit 410 is configured to determine, when the service board sends the received protocol message to the main control board, whether the protocol type of the protocol message supports multiple message types;
the determining unit 420 is configured to determine a packet type of the protocol packet if the protocol type of the protocol packet supports multiple packet types;
the uploading unit 430 is configured to add the protocol message to a speed limit queue corresponding to the message type, and upload the protocol message to the main control board when the number of protocol messages in the speed limit queue does not exceed a preset speed limit threshold; wherein, different message types respectively correspond to different speed limit queues.
In this embodiment, the sending-up unit 430 is further configured to:
if the protocol type of the protocol message does not support multiple message types, adding the protocol message to a speed limit queue corresponding to the protocol type of the protocol message;
and when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold value, the protocol messages are transmitted to the main control board.
In addition, in the apparatus shown in the present application, the speed limit thresholds of the speed limit queues respectively corresponding to different message types are different.
The priority of the multiple message types supported by the protocol type of the protocol message is different; and when the protocol message is a routing protocol message, the message type with high priority is a keep-alive message.
The implementation process of the functions and actions of each unit in the above device is specifically described in the implementation process of the corresponding step in the above method, and is not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (8)
1. A message speed limiting method is applied to distributed network equipment, the distributed network equipment comprises a main control board and at least one service board, and the message speed limiting method is characterized by comprising the following steps:
when the service board sends the received protocol message to the main control board, judging whether the protocol type of the protocol message supports multiple message types;
if the protocol type of the protocol message supports multiple message types, determining the message type of the protocol message;
adding the protocol message to a speed limit queue corresponding to the message type, and uploading the protocol message to the main control board when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold; the different message types respectively correspond to different speed limit queues so as to add the messages of various message types in the same protocol type to the different speed limit queues.
2. The method of claim 1, further comprising:
if the protocol type of the protocol message does not support multiple message types, adding the protocol message to a speed limit queue corresponding to the protocol type of the protocol message;
and when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold value, the protocol messages are transmitted to the main control board.
3. The method according to claim 1, wherein the speed limit thresholds of the speed limit queues respectively corresponding to different message types are different.
4. The method according to claim 1, wherein the protocol type of the protocol packet supports different priority levels of a plurality of packet types, and when the protocol packet is a routing protocol packet, the packet type with the higher priority level is a keep-alive packet.
5. A message speed limiting device is applied to distributed network equipment, wherein the distributed network equipment comprises a main control board and at least one service board, and is characterized by comprising:
the judging unit is used for judging whether the protocol type of the protocol message supports various message types when the service board sends the received protocol message to the main control board;
a determining unit, configured to determine a packet type of the protocol packet if the protocol type of the protocol packet supports multiple packet types;
the uploading unit is used for adding the protocol message to a speed limit queue corresponding to the message type and uploading the protocol message to the main control board when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold; the different message types respectively correspond to different speed limit queues so as to add the messages of various message types in the same protocol type to the different speed limit queues.
6. The apparatus of claim 5, comprising:
the feed-up unit is further configured to:
if the protocol type of the protocol message does not support multiple message types, adding the protocol message to a speed limit queue corresponding to the protocol type of the protocol message;
and when the number of the protocol messages in the speed limit queue does not exceed a preset speed limit threshold value, the protocol messages are transmitted to the main control board.
7. The apparatus according to claim 5, wherein the speed limit thresholds of the speed limit queues respectively corresponding to different message types are different.
8. The apparatus according to claim 5, wherein the protocol type of the protocol packet supports different priority levels of a plurality of packet types; and when the protocol message is a routing protocol message, the message type with high priority is a keep-alive message.
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| CN107508836B (en) * | 2017-09-27 | 2019-11-12 | 杭州迪普科技股份有限公司 | A kind of method and device that acl rule issues |
| CN108718284A (en) * | 2018-04-26 | 2018-10-30 | 新华三技术有限公司 | A kind of message processing method and device |
| CN109005128B (en) * | 2018-08-21 | 2022-11-01 | 新华三技术有限公司 | Protocol message scheduling method, device and network equipment |
| CN109639594A (en) * | 2018-12-04 | 2019-04-16 | 杭州迪普科技股份有限公司 | Method for limiting speed and device based on the frame network equipment |
| CN110995586B (en) * | 2019-11-15 | 2022-07-15 | 锐捷网络股份有限公司 | BGP message processing method and device, electronic equipment and storage medium |
| CN117118912A (en) * | 2022-05-17 | 2023-11-24 | 华为技术有限公司 | Message transmission method, network equipment and communication system |
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