CN114866444A - Performance measurement method and device, message generation method and device and communication system - Google Patents
Performance measurement method and device, message generation method and device and communication system Download PDFInfo
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Abstract
The disclosure provides a performance measurement method and device, a message generation method and device and a communication system. The network performance measurement method comprises the following steps: after receiving SRv6 message, detecting SRv6 whether the first extension field in the header of the message is set with a preset identifier; if the first extension field in the header is provided with a preset identifier, further detecting the service type set by the second extension field in the header; adding detection data associated with the traffic type to a third extension field of the header to update SRv6 the message; if the current routing node is an intermediate node on the measurement path, sending the updated SRv6 message to the next routing node on the measurement path; and if the current routing node is the tail node on the measurement path, reporting the detection data in the third extension field of the header to the controller. The method and the device can realize end-to-end performance detection of the service message under the condition of not increasing network overhead.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a performance measurement method and apparatus, a packet generation method and apparatus, and a communication system.
Background
SRv6 message uses IPv6 message Header to realize uniform load and flexible programmability of network service, SRv6-TE adds Header length by inserting SRH (Segment Routing Header), which may affect service forwarding performance. At present, SRv6 is still immature in OAM (Operation, Administration, Maintenance, Operation Administration) technology, end.op SID (Segment identity) is mainly used in Ping/Tracert and other network connectivity detection scenarios, network performance detection mainly depends on TWAN (Trusted WLAN) and other external detection means, and a performance probe packet needs to be sent additionally, service performance detection may adopt an ift (in-situ Flow Information specification) technology, but an ift header needs to be added additionally in the packet.
Disclosure of Invention
The inventor finds, through research, that in the related art, in the process of measuring SRv6 network performance, it is difficult to implement performance detection for real traffic flow by actively sending a dedicated probe packet, or passively observing only network node flow, packet loss statistics, and the like. In addition, in the existing SRv6 service performance measurement, an ift header needs to be additionally added to the message, so that the length of the message header is increased, and the forwarding efficiency of service data is reduced.
Accordingly, the present disclosure provides a network performance measurement scheme, which can implement end-to-end performance detection of a service packet without increasing network overhead.
According to a first aspect of the embodiments of the present disclosure, there is provided a network performance measurement method, performed by a routing node on a measurement path, including: after receiving SRv6 message, detecting whether a first extension field in the header of SRv6 message is provided with a preset identifier; if the first extension field in the header is provided with the preset identifier, further detecting the service type set by the second extension field in the header; adding detection data associated with the traffic type to a third extension field of the header to update the SRv6 message; if the routing node is the intermediate node on the measurement path, sending the updated SRv6 message to the next routing node on the measurement path; and if the routing node is the tail node on the measurement path, reporting the detection data in the third extension field of the header to a controller.
In some embodiments, the first extension field and the second extension field are provided in a Flags field of the header; the third extension field is set in an extension field of the header.
According to a second aspect of the embodiments of the present disclosure, there is provided a routing node, including: the detection module is configured to detect whether a first extension field in a header of the SRv6 message is provided with a preset identifier or not after receiving SRv6 message, and further detect a service type set by a second extension field in the header if the first extension field in the header is provided with the preset identifier; an acquisition module configured to acquire data associated with the traffic type; a message update module configured to add detection data associated with the traffic type to a third extension field of the header to update the SRv6 message; a message processing module configured to send the updated SRv6 message to a next routing node on a measurement path if the routing node is an intermediate node on the measurement path; and if the routing node is the tail node on the measurement path, reporting the detection data in the third extension field of the header to a controller.
In some embodiments, the first extension field and the second extension field are provided in a Flags field of the header; the third extension field is set in an extension field of the header.
According to a third aspect of the embodiments of the present disclosure, there is provided a routing node, including: a memory configured to store instructions; a processor coupled to the memory, the processor configured to perform a method implementing any of the embodiments described above based on instructions stored by the memory.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a network performance measurement method, performed by a head node on a measurement path, including: generating SRv6 a message, wherein a first extension field, a second extension field and a third extension field are provided in a header of the SRv6 message, wherein the first extension field is provided with a preset identifier, and the second extension field is provided with a traffic type, so that other routing nodes on the measurement path add detection data associated with the traffic type to the third extension field of the header according to the preset identifier; and sending the SRv6 message to the next routing node on the measurement path.
In some embodiments, the first extension field and the second extension field are provided in a Flags field of the header; the third extension field is set in an alignment field of the header.
According to a fifth aspect of the embodiments of the present disclosure, there is provided a routing node, including: a packet generation module configured to generate SRv6 a packet, wherein a first extension field, a second extension field and a third extension field are provided in a header of the SRv6 packet, wherein the first extension field is provided with a preset identifier, and the second extension field is provided with a traffic type, so that other routing nodes on the measurement path add detection data associated with the traffic type to the third extension field of the header according to the preset identifier; a sending module configured to send the SRv6 packet to a next routing node on the measurement path.
In some embodiments, the first extension field and the second extension field are provided in a Flags field of the header; the third extension field is set in an extension field of the header.
According to a sixth aspect of the embodiments of the present disclosure, there is provided a routing node, including: a memory configured to store instructions; a processor coupled to the memory, the processor configured to perform a method implementing any of the embodiments described above based on instructions stored by the memory.
According to a seventh aspect of the embodiments of the present disclosure, a communication system is provided, including a first node, an intermediate node, and a last node that are arranged on a measurement path, where the first node is a routing node for generating a packet according to any of the embodiments, and the intermediate node and the last node are routing nodes for performance measurement according to any of the embodiments; a controller configured to receive the detection data transmitted by the tail node.
According to an eighth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions, when executed by a processor, implement the method according to any of the embodiments described above.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
FIG. 1 is a schematic flow diagram of a performance measurement method according to one embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an SRv6 header according to one embodiment of the present disclosure;
FIG. 3 is a diagram illustrating a structure of the Flags field according to an embodiment of the disclosure;
FIG. 4 is a schematic structural diagram of a routing node according to one embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a routing node according to another embodiment of the present disclosure;
FIG. 6 is a flow diagram of a message generation method according to one embodiment of the present disclosure;
FIG. 7 is a schematic structural diagram of a routing node according to yet another embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of a routing node according to yet another embodiment of the present disclosure;
FIG. 9 is a schematic block diagram of a communication system according to one embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a communication system according to another embodiment of the present disclosure.
It should be understood that the dimensions of the various parts shown in the figures are not drawn to scale. Further, the same or similar reference numerals denote the same or similar components.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials and values set forth in these embodiments are to be construed as illustrative only and not as limiting unless otherwise specifically stated.
The use of the word "comprising" or "comprises" and the like in this disclosure means that the elements listed before the word encompass the elements listed after the word and do not exclude the possibility that other elements may also be encompassed.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
FIG. 1 is a schematic flow diagram of a performance measurement method according to one embodiment of the present disclosure. In some embodiments, the following performance measurement method steps are performed by other routing nodes on the measurement path than the head node.
At step 101, after receiving SRv6 a message, it is detected SRv6 whether a preset identifier is set in a first extension field in a header of the message.
In some embodiments, the first extension field is included in a Flags fields of the header. For example, the first extension field may be an OAM field. For example, the OAM field is 2 bits for use as an OAM flag bit. If the OAM field is set to be 1, the corresponding variable alignment field is indicated to carry corresponding detection data.
In step 102, if the first extension field in the header is set with a preset identifier, the type of service set by the second extension field in the header is further detected.
In some embodiments, the second extension field is included in a Flags fields of the header. For example, the second extension field may be a Type field. For example, the Type field is 6 bits for indicating the detected performance data Type. For example, the service performance detection data includes time delay, packet loss, jitter, and the like.
In step 103, detection data associated with the traffic type is added to the third extension field of the header to update SRv6 the message.
In some embodiments, the third extension field is included in the variable extension field of the header.
In step 104, if the routing node is an intermediate node on the measurement path, the updated SRv6 message is sent to the next routing node on the measurement path.
In step 105, if the routing node is the end node on the measurement path, the detection data in the third extension field of the header is reported to the controller.
Fig. 2 is a schematic structural diagram of an SRv6 header according to an embodiment of the present disclosure.
As shown in fig. 2, a first extension field and a second extension field are set in the Flags field, the first extension field may be an OAM field, and the second extension field may be a Type field. As shown in fig. 3.
It should be noted here that Segment in the SRv6 header has 128bits, and is divided into Locator, Function and attribute fields. The third extension field used by the present disclosure is included in the extension field.
In the performance measurement method provided in the foregoing embodiment of the present disclosure, each routing node places detected corresponding service data into an extension field of a header of an SRv6 packet, and a tail node reports the detected data in the extension field to a controller, thereby implementing end-to-end performance detection of a service packet without increasing network overhead.
Fig. 4 is a schematic structural diagram of a routing node according to one embodiment of the present disclosure. As shown in fig. 4, the routing node includes a detection module 41, a collection module 42, a packet update module 43, and a packet processing module 44.
The detecting module 41 is configured to detect SRv6 whether the first extension field in the header of the message is set with a preset identifier after receiving SRv6 the message, and further detect the service type set by the second extension field in the header if the first extension field in the header is set with the preset identifier.
The collection module 42 is configured to collect data associated with the traffic type.
The message update module 43 is configured to add detection data associated with the traffic type to the third extension field of the header to update SRv6 the message.
The message processing module 44 is configured to send the updated SRv6 message to the next routing node on the measurement path if the routing node is an intermediate node on the measurement path; and if the routing node is the tail node on the measurement path, reporting the detection data in the third extension field of the header to the controller.
In some embodiments, the first extension field and the second extension field are provided in the Flags field of the SRv6 message, and the third extension field is provided in the arm field of the SRv6 message.
Fig. 5 is a schematic structural diagram of a routing node according to another embodiment of the present disclosure. As shown in fig. 5, the routing node includes a memory 51 and a processor 52.
The memory 51 is used to store instructions. The processor 52 is coupled to the memory 51. The processor 52 is configured to perform a method as referred to in any of the embodiments of fig. 1 based on the instructions stored in the memory.
As shown in fig. 5, the routing node further comprises a communication interface 53 for information interaction with other devices. Meanwhile, the routing node further comprises a bus 54, and the processor 52, the communication interface 53 and the memory 51 are communicated with each other through the bus 54.
The Memory 51 may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM). Such as at least one disk storage. The memory 51 may also be a memory array. The storage 51 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 52 may be a central processing unit, or may be an ASIC (Application Specific Integrated Circuit), or one or more Integrated circuits configured to implement embodiments of the present disclosure.
The present disclosure also provides a computer-readable storage medium. The computer-readable storage medium stores computer instructions, and the instructions, when executed by the processor, implement the method according to any one of the embodiments in fig. 1.
Fig. 6 is a flowchart illustrating a message generation method according to an embodiment of the present disclosure. In some embodiments, the following message generation method steps are performed by the head node on the measurement path.
In step 601, a message SRv6 is generated, wherein a first extension field, a second extension field and a third extension field are provided in the header of the SRv6 message, wherein the first extension field is provided with a preset identifier, and the second extension field is provided with a traffic type, so that other routing nodes on the measurement path add detection data associated with the traffic type to the third extension field of the header according to the preset identifier.
In some embodiments, the first extension field and the second extension field are provided in the Flags field of the SRv6 message, and the third extension field is provided in the arm field of the SRv6 message.
At step 602, the SRv6 message is sent to the next routing node on the measurement path.
Fig. 7 is a schematic structural diagram of a routing node according to yet another embodiment of the present disclosure. As shown in fig. 7, the routing node includes a packet generation module 71 and a transmission module 72.
The packet generation module 71 is configured to generate SRv6 a packet, wherein a first extension field, a second extension field and a third extension field are provided in a header of the SRv6 packet, wherein the first extension field is provided with a preset identifier and the second extension field is provided with a traffic type, so that other routing nodes on the measurement path add detection data associated with the traffic type to the third extension field of the header according to the preset identifier.
In some embodiments, the first extension field and the second extension field are provided in the Flags field of the SRv6 message, and the third extension field is provided in the arm field of the SRv6 message.
The sending module 72 is configured to send SRv6 a message to the next routing node on the measurement path.
Fig. 8 is a schematic structural diagram of a routing node according to yet another embodiment of the present disclosure. As shown in fig. 8, the routing node includes a memory 81, a processor 82, a communication interface 83, and a bus 84. Fig. 8 differs from fig. 5 in that, in the embodiment shown in fig. 8, the processor 82 performs the method referred to in any of fig. 6 based on instructions stored by the memory 81.
Fig. 9 is a schematic structural diagram of a communication system according to one embodiment of the present disclosure. As shown in fig. 9, the communication system includes a head node 91, a plurality of intermediate nodes 92, a tail node 93, and a controller 94, which are disposed on a measurement path. The head node 91 is a routing node according to any one of the embodiments in fig. 7 or fig. 8. The intermediate node 92 and the end node 93 are routing nodes related to any one of the embodiments of fig. 4 or fig. 5. The controller 94 is configured to receive the detection data transmitted by the tail node 93.
Fig. 10 is a schematic structural diagram of a communication system according to another embodiment of the present disclosure.
As shown in FIG. 10, RA is the head node, RY is the tail node, and RB-RE is the middle node. The set measurement path is RA-RB-RC-RE-RD-RY.
The RA sends SRv6 messages to the RB, wherein a first extension field, a second extension field and a third extension field are configured in the SRv6 messages, the first extension field is provided with a preset identifier, and the second extension field is provided with a service type.
Upon receiving SRv6 message from RA, RB adds the detection data associated with the service type included in the second extension field to the third extension field of the header according to the indication of the first extension field to update SRv6 message. The RB further sends the updated SRv6 message to the next node RC on the measurement path. The processes of the RC, RE and RD are the same as those of the RB and are not described herein.
RY, upon receiving SRv6 message from RD, adds the detection data associated with the traffic type included in the second extension field to the third extension field of the header as indicated by the first extension field to update SRv6 message. Because RY is the tail node, RY reports the detection data in the third extension field of the SRv6 message to the controller. The controller can thereby acquire the detection data of each node on the measurement path. Thereby realizing end-to-end performance detection based on SRv6 messages.
In some embodiments, the functional unit modules described above can be implemented as a general purpose Processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable Logic device, discrete Gate or transistor Logic, discrete hardware components, or any suitable combination thereof for performing the functions described in this disclosure.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (12)
1. A performance measurement method, performed by a routing node on a measurement path, comprising:
after receiving SRv6 message, detecting whether a first extension field in the header of SRv6 message is provided with a preset identifier;
if the first extension field in the header is provided with the preset identifier, further detecting the service type set by the second extension field in the header;
adding detection data associated with the traffic type to a third extension field of the header to update the SRv6 message;
if the routing node is the intermediate node on the measurement path, sending the updated SRv6 message to the next routing node on the measurement path;
and if the routing node is the tail node on the measurement path, reporting the detection data in the third extension field of the header to a controller.
2. The method of claim 1, wherein,
the first extension field and the second extension field are set in a Flags field of the header;
the third extension field is set in an extension field of the header.
3. A routing node, comprising:
the detection module is configured to detect whether a first extension field in a header of the SRv6 message is provided with a preset identifier or not after receiving SRv6 message, and further detect a service type set by a second extension field in the header if the first extension field in the header is provided with the preset identifier;
an acquisition module configured to acquire data associated with the traffic type;
a message update module configured to add detection data associated with the traffic type to a third extension field of the header to update the SRv6 message;
a message processing module configured to send the updated SRv6 message to a next routing node on a measurement path if the routing node is an intermediate node on the measurement path; and if the routing node is the tail node on the measurement path, reporting the detection data in the third extension field of the header to a controller.
4. The routing node of claim 3,
the first extension field and the second extension field are set in a Flags field of the header;
the third extension field is set in an extension field of the header.
5. A routing node, comprising:
a memory configured to store instructions;
a processor coupled to the memory, the processor configured to perform implementing the method of any of claims 1-2 based on instructions stored by the memory.
6. A message generation method is executed by a head node on a measurement path, and comprises the following steps:
generating SRv6 a message, wherein a header of the SRv6 message is provided with a first extension field, a second extension field and a third extension field, wherein the first extension field is provided with a preset identifier, and the second extension field is provided with a service type, so that other routing nodes on the measurement path add detection data associated with the service type to the third extension field of the header according to the preset identifier;
and sending the SRv6 message to the next routing node on the measurement path.
7. The method of claim 6, wherein,
the first extension field and the second extension field are set in a Flags field of the header;
the third extension field is set in an extension field of the header.
8. A routing node, comprising:
a packet generation module configured to generate SRv6 a packet, wherein a first extension field, a second extension field and a third extension field are provided in a header of the SRv6 packet, wherein the first extension field is provided with a preset identifier, and the second extension field is provided with a traffic type, so that other routing nodes on the measurement path add detection data associated with the traffic type to the third extension field of the header according to the preset identifier;
a sending module configured to send the SRv6 packet to a next routing node on the measurement path.
9. The routing node of claim 8,
the first extension field and the second extension field are set in a Flags field of the header;
the third extension field is set in an extension field of the header.
10. A routing node, comprising:
a memory configured to store instructions;
a processor coupled to the memory, the processor configured to perform implementing the method of any of claims 8-9 based on instructions stored by the memory.
11. A communication system, comprising:
a head node, an intermediate node and a tail node arranged on the measurement path, wherein the head node is the routing node of any one of claims 8-10, and the intermediate node and the tail node are the routing nodes of any one of claims 3-5;
a controller configured to receive the detection data transmitted by the tail node.
12. A computer readable storage medium, wherein the computer readable storage medium stores computer instructions which, when executed by a processor, implement the method of any one of claims 1, 2, 6, 7.
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