CN115002006B - Network equipment time delay test method - Google Patents
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- CN115002006B CN115002006B CN202210462787.8A CN202210462787A CN115002006B CN 115002006 B CN115002006 B CN 115002006B CN 202210462787 A CN202210462787 A CN 202210462787A CN 115002006 B CN115002006 B CN 115002006B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
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Abstract
The invention discloses a network equipment time delay test method, which comprises the following steps: step one, initializing equipment; step two, performing time delay test, wherein in step one, initializing equipment, and the specific flow is as follows: s101: accessing test equipment into a network, wherein the initialization state is 'False', and the calibration time delay T0 is a default value 0; s102: the method comprises the steps that a received message type and a sent message type are preconfigured on test equipment; s103: the port 1 of the test equipment receives the message, matches the message information recorded by the message, discards the repeated message if the repeated message is matched, and forwards the message which is not matched to the port 2. The invention calculates the time of the message passing through the network equipment by matching the message sent to the tested network equipment and recording the sending and receiving time, thereby solving the problem of testing the network time delay of the real network message passing through the tested equipment.
Description
Technical Field
The invention relates to the technical field of network equipment time delay test, in particular to a network equipment time delay test method.
Background
Network device latency refers to the time required for a message or packet to travel from one end of a device to another. The existing message delay test mainly tests the delay by constructing a special message, adding time stamps before the tested message enters the network equipment and after the tested message leaves the network equipment, and then calculating the absolute value of the time difference of the two time stamps.
However, in the prior art, the special message added with the time stamp is constructed in the prior art, so that the tested message carries time information, and the tested message can not be normally analyzed by a service system, thereby causing network service failure.
Disclosure of Invention
The invention provides a network equipment time delay testing method to solve the problems in the background technology.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the network equipment time delay testing method comprises the following steps:
step one, initializing equipment;
step two, a time delay test is carried out,
step one, initializing equipment, wherein the specific process is as follows:
s101: accessing test equipment into a network, wherein the initialization state is 'False', and the calibration time delay T0 is a default value 0;
s102: the method comprises the steps that a received message type and a sent message type are preconfigured on test equipment;
s103: the port 1 of the test equipment receives the message, matches the message information recorded by the message, if the message is a repeated message in the matching process, discards the repeated message, and forwards the message which is not matched to the port 2;
s104: the message is grabbed before being sent out from the port 2, and the message types are matched and received;
s105: s104, generating a message ID after matching, extracting message information and system time T1, and directly transmitting the messages which are not matched to S106;
s106: sending out a message from a port 2;
s107: creating a data item in a database, combining the message information obtained in the step S105 into a message record, and storing the message record into the data item;
s108: the message arrives at port 4 after being sent out from port 2;
s109: the message is matched with the type of the received message after being received by the port 4;
s110: s109, extracting and generating message information and system time T2 after matching, and directly transmitting the messages which are not matched to S111;
s111: sending out a message from the port 3;
s112: comparing the message information obtained in the step S110 with the message information of the data item in the database stored in the step S107, and if the message information is the same, storing the system time T2 obtained in the step S110 into the data item;
s113: calculating the absolute values of the system time T1 and the system time T2 as the calibration time delay T0, storing the calibration time delay T0 into the calibration time delay of the initialization data, replacing the default value,
step two, initializing equipment, wherein the specific flow is as follows:
s201: accessing the test equipment into a network;
s202: reading the initialization state, if "True", continuing to S202; if the result is "False", prompting to initialize and exit;
s203: the port 1 of the test equipment receives the message, matches the message information recorded by the message, if the message is a repeated message in the matching process, discards the repeated message, and forwards the message which is not matched to the port 2;
s204: the message is grabbed before being sent out from the port 2, and the message types are matched and received;
s205: s204, generating a message ID after matching, extracting message information and system time T1, and directly transmitting the messages which are not matched to S206;
s206: sending out a message from a port 2;
s207: creating a data item in a database, merging the message information obtained in the step S205 into a message record, and storing the message record into the data item;
s208: the message reaches the port 4 of the test equipment after passing through the tested equipment;
s209: the message is matched with the type of the received message after being received by the port 4;
s210: s209, extracting and generating message information and system time T2 after matching;
s211: sending out a message from the port 3;
s212: comparing the message information obtained in the step S210 with the message information of the data item in the database stored in the step S207, and if the message information is the same, storing the system time T2 obtained in the step S210 into the data item;
s213: calculating the absolute value of the system time T1 and the system time T2 as draft time delay T3, and deleting the same data items in the S212 comparison;
s214: and calculating absolute values of draft time delay T3 and calibration time delay T0, namely the time delay T of the message type in the tested equipment.
As a further improvement scheme of the technical scheme: in S107, if S105 does not have a matching message, S107 is skipped.
As a further improvement scheme of the technical scheme: in S110, the message that is not matched in S109 goes directly to S111.
As a further improvement scheme of the technical scheme: in S113, deleting the same data item in S112 alignment is also included.
As a further improvement scheme of the technical scheme: in S207, S205 skips S207 if there is no message in the match.
As a further improvement scheme of the technical scheme: in S210, the message that is not matched in S209 goes directly to S211.
As a further improvement scheme of the technical scheme: "False" means that the test device is in a device-on, but uninitialized state.
As a further improvement scheme of the technical scheme: "True" indicates that the test device is in a state in which the device is powered on, completing the initialization process.
As a further improvement scheme of the technical scheme: the method is suitable for time delay testing of two-layer and three-layer network equipment such as hubs, bridges, switches, splitters, routers, gateways and the like.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention matches the real message which does not pass through the tested equipment and enters the tested equipment through the tested equipment by calculating the message, records the corresponding sending and receiving time, and calculates the absolute value of the two times. The method is suitable for the time delay test of two-three network devices such as a hub, a switch, a shunt, a router, a gateway and the like;
2. the invention calculates the real time delay of the message passing through the tested equipment by calculating the draft time delay of the message not passing through the tested equipment and the draft time delay of the tested equipment, thereby achieving the purpose of reducing the environmental error of the test time delay.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a network topology diagram of a network device in a method for testing time delay of a network device according to the present invention;
fig. 2 is a network topology diagram of a network device in the delay test method according to the present invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, the test apparatus sets four data structures:
1) Initializing data: initialization state: a data structure is used to mark the current initialization state of the device, with a value of "True" or "False"; calibrating time delay: default to 0;
2) Type of received message: message quintuple (source IP/destination IP/source port/destination port/protocol), default configuration (Any/0-65535/0-65535/TCP);
3) Type of the transmitted message: message quintuple (source IP/destination IP/source port/destination port/protocol), default configuration (Any/0-65535/0-65535/TCP);
4) And (3) message recording: a message ID; message information: IP layer identification (identification), transport layer five-tuple (source IP/destination IP/source port/destination port/protocol), TCP Sequence Number (Sequence Number); system time T1; system time T2.
In the embodiment of the invention, the method for testing the time delay of the network equipment comprises the following steps:
step one, initializing equipment;
step two, a time delay test is carried out,
step one, initializing equipment, wherein the specific process is as follows:
s101: accessing the test equipment into the network according to FIG. 1, wherein the initialization state is "False" and the calibration time delay T0 is a default value 0;
s102: the method comprises the steps that a received message type and a sent message type are preconfigured on test equipment;
s103: the port 1 of the test equipment receives the message, matches the message information recorded by the message, if the message is a repeated message in the matching process, discards the repeated message, and forwards the message which is not matched to the port 2;
s104: the message is grabbed before being sent out from the port 2, and the message types are matched and received;
s105: s104, generating a message ID after matching, extracting message information and system time T1, and directly transmitting the messages which are not matched to S106;
s106: sending out a message from a port 2;
s107: creating a data item in a database, merging the message information obtained in the step S105 into a message record, and storing the message record into the data item, and skipping the step S107 if the step S105 does not have the matched message;
s108: the message arrives at port 4 after being sent out from port 2;
s109: the message is matched with the type of the received message after being received by the port 4;
s110: after the matching in S109, extracting and generating message information and system time T2, wherein the messages which are not matched directly go to S111, and the messages which are not matched in S109 directly go to S111;
s111: sending out a message from the port 3;
s112: comparing the message information obtained in the step S110 with the message information of the data item in the database stored in the step S107, and if the message information is the same, storing the system time T2 obtained in the step S110 into the data item;
s113: calculating the absolute value of the system time T1 and the system time T2 as a calibration time delay T0, saving the calibration time delay T0 to the calibration time delay of the initialization data, replacing the default value, deleting the same data item in the S112 comparison,
step two, initializing equipment, wherein the specific flow is as follows:
s201: accessing the test equipment into the network according to fig. 2;
s202: reading the initialization state, if "True", continuing to S202; if the result is "False", prompting to initialize and exit;
s203: the port 1 of the test equipment receives the message, matches the message information recorded by the message, if the message is a repeated message in the matching process, discards the repeated message, and forwards the message which is not matched to the port 2;
s204: the message is grabbed before being sent out from the port 2, and the message types are matched and received;
s205: s204, generating a message ID after matching, extracting message information and system time T1, and directly transmitting the messages which are not matched to S206;
s206: sending out a message from a port 2;
s207: creating a data item in a database, merging the message information obtained in the step S205 into a message record, storing the message record in the data item, and skipping the step S207 when the message in the step S205 is not matched;
s208: the message reaches the port 4 of the test equipment after passing through the tested equipment;
s209: the message is matched with the type of the received message after being received by the port 4;
s210: after S209 matching, extracting and generating message information and system time T2, wherein the messages which are not matched in S209 go directly to S211;
s211: sending out a message from the port 3;
s212: comparing the message information obtained in the step S210 with the message information of the data item in the database stored in the step S207, and if the message information is the same, storing the system time T2 obtained in the step S210 into the data item;
s213: calculating the absolute value of the system time T1 and the system time T2 as draft time delay T3, and deleting the same data items in the S212 comparison;
s214: and calculating absolute values of draft time delay T3 and calibration time delay T0, namely the time delay T of the message type in the tested equipment.
Specifically, "False" indicates that the test device is in a device-on, but uninitialized state; "True" indicates that the test device is in a state in which the device is powered on, completing the initialization process.
The method is suitable for time delay test of two-layer and three-layer network equipment such as hubs, bridges, switches, splitters, routers, gateways and the like.
The working principle of the invention is as follows:
the invention relates to a method for calculating the time of a message passing through network equipment by matching the message sent to the tested network equipment and recording the sending and receiving time.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; those skilled in the art will readily appreciate that the present invention may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (9)
1. The network equipment time delay testing method is characterized by comprising the following steps of:
step one, initializing equipment;
step two, a time delay test is carried out,
step one, initializing equipment, wherein the specific process is as follows:
s101: accessing test equipment into a network, wherein the initialization state is 'False', and the calibration time delay T0 is a default value 0;
s102: the method comprises the steps that a received message type and a sent message type are preconfigured on test equipment;
s103: the test equipment port 1 receives the message, matches the message information recorded by the message, if the message is a repeated message in the matching process, discards the repeated message, and forwards the message which is not matched to the test equipment port 2;
s104: the message is grabbed before being sent out from the port 2 of the test equipment, and the type of the message is matched and received;
s105: s104, generating a message ID after matching, extracting message information and system time T1, and directly transmitting the messages which are not matched to S106;
s106: sending out a message from a test equipment port 2;
s107: creating a data item in a database, combining the message information obtained in the step S105 into a message record, and storing the message record into the data item;
s108: the message directly reaches the test equipment port 4 after being sent out from the test equipment port 2;
s109: the message is matched with the type of the received message after being received by the port 4 of the test equipment;
s110: s109, extracting and generating message information and system time T2 after matching, and directly transmitting the messages which are not matched to S111;
s111: sending out the message from the port 3 of the test equipment;
s112: comparing the message information obtained in the step S110 with the message information of the data item in the database stored in the step S107, and if the message information is the same, storing the system time T2 obtained in the step S110 into the data item;
s113: calculating the absolute values of the system time T1 and the system time T2 as the calibration time delay T0, storing the calibration time delay T0 into the calibration time delay of the initialization data, replacing the default value,
step two, performing time delay test, wherein the specific flow is as follows:
s201: accessing the tested equipment into a network;
s202: reading the initialization state, if "True", continuing S203; if "False", prompt initialization and return to S101;
s203: the test equipment port 1 receives the message, matches the message information recorded by the message, if the message is a repeated message in the matching process, discards the repeated message, and forwards the message which is not matched to the test equipment port 2;
s204: the message is grabbed before being sent out from the port 2 of the test equipment, and the type of the message is matched and received;
s205: s204, generating a message ID after matching, extracting message information and system time T1, and directly transmitting the messages which are not matched to S206;
s206: sending out a message from a test equipment port 2;
s207: creating a data item in a database, merging the message information obtained in the step S205 into a message record, and storing the message record into the data item;
s208: the message reaches the port 4 of the test equipment after passing through the tested equipment;
s209: the message is matched with the type of the received message after being received by the port 4 of the test equipment;
s210: s209, extracting and generating message information and system time T2 after matching;
s211: sending out the message from the port 3 of the test equipment;
s212: comparing the message information obtained in the step S210 with the message information of the data item in the database stored in the step S207, and if the message information is the same, storing the system time T2 obtained in the step S210 into the data item;
s213: calculating the absolute value of the system time T1 and the system time T2 as draft time delay T3, and deleting the same data items in the S212 comparison;
s214: and calculating absolute values of draft time delay T3 and calibration time delay T0, namely the time delay T of the message type in the tested equipment.
2. The method for testing latency of network device according to claim 1, wherein in S107, if S105 does not have a message in match, S107 is skipped.
3. The method for testing delay of network device according to claim 1, wherein in S110, the packets not matched by S109 go directly to S111.
4. The method according to claim 1, wherein in S113, the same data item in the S112 alignment is deleted.
5. The method for testing latency of network device according to claim 1, wherein in S207, S207 is skipped if S205 does not match the message.
6. The method for testing delay of network device according to claim 1, wherein in S210, the message that is not matched in S209 goes directly to S211.
7. The method of claim 1, wherein "False" indicates that the test device is in a device-on, but uninitialized state.
8. The method for testing the time delay of the network device according to claim 1, wherein "True" indicates that the test device is in a state in which the device is turned on and the initialization process is completed.
9. The method for testing the time delay of the network equipment according to claim 1, which is suitable for testing the time delay of two-layer and three-layer network equipment of hubs, bridges, switches, splitters, routers and gateways.
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