CN114301811A - Information processing method and device and tunnel endpoint network element - Google Patents
Information processing method and device and tunnel endpoint network element Download PDFInfo
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Abstract
The invention provides an information processing method, an information processing device and a tunnel endpoint network element, wherein the information processing method comprises the following steps: sending a first TWAMP message to a second tunnel endpoint network element; after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element; the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent; the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent. The scheme well solves the problems of high overhead, low precision, small application range and the like of an information processing scheme aiming at lost packet data detection in the prior art.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an information processing method and apparatus, and a tunnel endpoint network element.
Background
Currently, an SD-WAN (software defined wide area network) forwards based on an Overlay tunnel, which is a point-to-point connection, so that obtaining packet loss rate is greatly simplified, and there are various tunnel packet loss detection methods, mainly involving the following two methods:
firstly, sending a detection message, checking the loss rate of the detection message and deducing the packet loss rate; however, for this method, the bandwidth overhead and processing overhead of the measurement packet are required, and the measurement packet may not cover all the underlying load sharing links (as in the network structure shown in fig. 1, there may be a case of being unable to cover), so the packet loss problem is not detected or accurate. When the paths of the receiving and transmitting directions of the tunnel are not consistent, the method for sending the detection message cannot obtain accurate packet loss statistics; and because the detection message needs to send a test sequence, only the instant packet loss condition can be detected.
Secondly, an LM for measuring packet loss running on a VxLAN (virtual extensible local area network) can be used for packet loss detection in a partial scene, and is particularly only suitable for a two-layer interconnected network. However, for this method, when the network interconnection needs three-layer interconnection or two-layer and three-layer interconnection at the same time, the functional requirement cannot be satisfied. The Overlay interconnection between CPEs (customer premises equipment) such as SD-WAN is interconnected by three layers, and this mode cannot be operated.
As can be seen from the above, the existing information processing scheme for packet loss data detection has the problems of high overhead, low accuracy, small application range, and the like.
Disclosure of Invention
The invention aims to provide an information processing method, an information processing device and a tunnel endpoint network element, and aims to solve the problems of high cost, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
In order to solve the foregoing technical problem, an embodiment of the present invention provides an information processing method, which is applied to a first tunnel endpoint network element, and includes:
sending a first bidirectional active measurement protocol TWAMP message to a second tunnel endpoint network element;
after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
Optionally, the sending the first bidirectional active measurement protocol TWAMP packet to the second tunnel endpoint network element includes:
generating a first initial TWAMP message;
according to the first initial TWAMP message, stopping sending the message, and acquiring the first quantity;
obtaining the first TWAMP message according to the first initial TWAMP message and the first quantity;
and placing the first TWAMP message at the first position in a tunnel message sending queue, and starting to send the message.
Optionally, the generating the first initial TWAMP packet includes:
and generating a first initial TWAMP message under the condition of receiving the first instruction.
Optionally, the sending the second TWAMP packet to the second tunnel endpoint network element includes:
generating a second initial TWAMP message;
stopping sending the message according to the second initial TWAMP message, and acquiring the second quantity;
obtaining a second TWAMP message according to the second initial TWAMP message and the second quantity;
and placing the second TWAMP message at the first position in a tunnel message sending queue, and starting to send the message.
Optionally, the generating the second initial TWAMP packet includes:
generating a second initial TWAMP message under the condition of meeting a preset condition;
wherein the preset condition comprises at least one of the following:
receiving a second instruction;
a first preset time interval is formed between the current time and the sending time of the first TWAMP message;
the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
The embodiment of the invention also provides an information processing method, which is applied to a second tunnel endpoint network element and comprises the following steps:
receiving a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then continuing to receive the messages;
under the condition of receiving a second TWAMP message sent by the first tunnel endpoint network element, stopping receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
and acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
Optionally, before stopping receiving the message, the method further includes:
detecting the type of the received message;
wherein the type includes at least one of a TWAMP message type and a user traffic message type.
Optionally, before detecting the type of the received packet, the method further includes:
and controlling the message to enter a tunnel receiving queue under the condition of identifying the tunnel package of the received message.
An embodiment of the present invention further provides an information processing apparatus, which is applied to a first tunnel endpoint network element, and includes:
a first sending module, configured to send a first bidirectional active measurement protocol TWAMP packet to a second tunnel endpoint network element;
a second sending module, configured to send a second TWAMP packet to the second tunnel endpoint network element after sending the first TWAMP packet;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
Optionally, the first sending module includes:
the first generation submodule is used for generating a first initial TWAMP message;
a first processing sub-module, configured to stop sending the packet according to the first initial TWAMP packet, and obtain the first number;
a second processing sub-module, configured to obtain the first TWAMP packet according to the first initial TWAMP packet and the first quantity;
and the first sending submodule is used for placing the first TWAMP message at the first position in a tunnel message sending queue and starting to send the message.
Optionally, the generating the first initial TWAMP packet includes:
and generating a first initial TWAMP message under the condition of receiving the first instruction.
Optionally, the second sending module includes:
the second generation submodule is used for generating a second initial TWAMP message;
a third processing sub-module, configured to stop sending the packet according to the second initial TWAMP packet, and obtain the second number;
a fourth processing sub-module, configured to obtain the second TWAMP packet according to the second initial TWAMP packet and the second quantity;
and the second sending submodule is used for placing the second TWAMP message at the first position in a tunnel message sending queue and starting to send the message.
Optionally, the generating the second initial TWAMP packet includes:
generating a second initial TWAMP message under the condition of meeting a preset condition;
wherein the preset condition comprises at least one of the following:
receiving a second instruction;
a first preset time interval is formed between the current time and the sending time of the first TWAMP message;
the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
An embodiment of the present invention further provides an information processing apparatus, which is applied to a second tunnel endpoint network element, and includes:
a first receiving module, configured to receive a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
the first processing module is used for stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then starting to continue receiving the messages;
a second processing module, configured to, when a second TWAMP packet sent by the first tunnel endpoint network element is received, stop receiving the packet again according to the second TWAMP packet, and obtain a fourth number of received packets; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
and the first obtaining module is used for obtaining the packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
Optionally, the method further includes:
the first detection module is used for detecting the type of the received message before stopping receiving the message;
wherein the type includes at least one of a TWAMP message type and a user traffic message type.
Optionally, the method further includes:
the first control module is used for controlling the message to enter a tunnel receiving queue under the condition that the tunnel encapsulation of the received message is identified before the type of the received message is detected.
An embodiment of the present invention further provides a tunnel endpoint network element, where the tunnel endpoint network element is a first tunnel endpoint network element, and the tunnel endpoint network element includes: a processor and a transceiver;
the processor is configured to send a first bidirectional active measurement protocol TWAMP packet to a second tunnel endpoint network element through the transceiver;
after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element through the transceiver;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
Optionally, the processor is specifically configured to:
generating a first initial TWAMP message;
according to the first initial TWAMP message, stopping sending the message, and acquiring the first quantity;
obtaining the first TWAMP message according to the first initial TWAMP message and the first quantity;
and placing the first TWAMP message at the first position in a tunnel message sending queue, and starting to send the message through the transceiver.
Optionally, the processor is specifically configured to:
generating a first initial TWAMP message upon receiving a first instruction through the transceiver.
Optionally, the processor is specifically configured to:
generating a second initial TWAMP message;
stopping sending the message according to the second initial TWAMP message, and acquiring the second quantity;
obtaining a second TWAMP message according to the second initial TWAMP message and the second quantity;
and placing the second TWAMP message at the first position in a tunnel message sending queue, and starting to send the message through the transceiver.
Optionally, the processor is specifically configured to:
generating a second initial TWAMP message under the condition of meeting a preset condition;
wherein the preset condition comprises at least one of the following:
receiving, by the transceiver, a second instruction;
a first preset time interval is formed between the current time and the sending time of the first TWAMP message;
the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
An embodiment of the present invention further provides a tunnel endpoint network element, where the tunnel endpoint network element is a second tunnel endpoint network element, and the tunnel endpoint network element includes: a processor and a transceiver;
the processor is configured to receive, through the transceiver, a first bidirectional active measurement protocol TWAMP packet sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
controlling the transceiver to stop receiving messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then starting to continue receiving the messages through the transceiver;
under the condition that a second TWAMP message sent by the first tunnel endpoint network element is received through the transceiver, controlling the transceiver to stop receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
and acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
Optionally, the processor is further configured to:
before stopping receiving the message, detecting the type of the received message;
wherein the type includes at least one of a TWAMP message type and a user traffic message type.
Optionally, the processor is further configured to:
before detecting the type of the received message, controlling the message to enter a tunnel receiving queue under the condition of identifying the tunnel encapsulation of the received message.
The embodiment of the invention also provides a tunnel endpoint network element, which comprises a memory, a processor and a program which is stored on the memory and can be operated on the processor; the processor implements the information processing method of the first tunnel endpoint network element side when executing the program; or,
and when the processor executes the program, the processor realizes the information processing method of the second tunnel endpoint network element side.
The embodiment of the present invention further provides a readable storage medium, on which a program is stored, where the program, when executed by a processor, implements the steps in the information processing method on the first tunnel endpoint network element side; or,
the program, when executed by a processor, implements the steps in the above-described information processing method on the second tunnel endpoint network element side.
The technical scheme of the invention has the following beneficial effects:
in the above scheme, the information processing method sends a first bidirectional active measurement protocol TWAMP message to a second tunnel endpoint network element; after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element; the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent; the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message is sent; the method can realize that the sampling time point is aligned by triggering the second tunnel endpoint network element to carry out tunnel statistical data acquisition by sending the measurement message (namely, the TWAMP message), realizes accurate tunnel packet loss detection, greatly improves the measurement precision, eliminates the influence of a bottom link, is suitable for various scenes and ensures the application range; in addition, the method can also realize measurement as required, and does not need to detect the packet loss rate by sending a series of measurement messages, thereby greatly reducing the bandwidth ratio of the measurement messages, reducing the measurement overhead, and well solving the problems of large overhead, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
Drawings
FIG. 1 is a diagram of a prior art network architecture;
FIG. 2 is a first flowchart illustrating an information processing method according to an embodiment of the present invention;
FIG. 3 is a second flowchart illustrating an information processing method according to an embodiment of the present invention;
FIG. 4 is a first flowchart illustrating an implementation of an information processing method according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second implementation flow of an information processing method according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a TWAMP packet encapsulation extension according to an embodiment of the present invention;
fig. 7 is a schematic diagram of TWAMP packet encapsulation extension according to an embodiment of the present invention;
FIG. 8 is a first schematic structural diagram of an information processing apparatus according to an embodiment of the present invention;
FIG. 9 is a second schematic structural diagram of an information processing apparatus according to an embodiment of the present invention;
fig. 10 is a first schematic structural diagram of a tunnel endpoint network element according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a tunnel endpoint network element structure according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The present invention provides an information processing method, applied to a first tunnel endpoint network element, as shown in fig. 2, for solving the problems of large overhead, low precision, small application range, etc. of an information processing scheme for packet loss data detection in the prior art, including:
step 21: sending a first bidirectional active measurement protocol TWAMP message to a second tunnel endpoint network element;
step 22: after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element; the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent; the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
The information processing method provided by the embodiment of the invention sends a first bidirectional active measurement protocol TWAMP message to a second tunnel endpoint network element; after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element; the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent; the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message is sent; the method can realize that the sampling time point is aligned by triggering the second tunnel endpoint network element to carry out tunnel statistical data acquisition by sending the measurement message (namely, the TWAMP message), realizes accurate tunnel packet loss detection, greatly improves the measurement precision, eliminates the influence of a bottom link, is suitable for various scenes and ensures the application range; in addition, the method can also realize measurement as required, and does not need to detect the packet loss rate by sending a series of measurement messages, thereby greatly reducing the bandwidth ratio of the measurement messages, reducing the measurement overhead, and well solving the problems of large overhead, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
Wherein, the sending the first TWAMP message to the second tunnel endpoint network element includes: generating a first initial TWAMP message; according to the first initial TWAMP message, stopping sending the message, and acquiring the first quantity; obtaining the first TWAMP message according to the first initial TWAMP message and the first quantity; and placing the first TWAMP message at the first position in a tunnel message sending queue, and starting to send the message.
The messages can be sent one by one in sequence.
Specifically, the generating the first initial TWAMP packet includes: and generating a first initial TWAMP message under the condition of receiving the first instruction.
The first instruction may be user input or pre-stored. The first instruction may only indicate generation of the first TWAMP packet, or may indicate generation timing of the second TWAMP packet, for example: the current time is separated from the sending time of the first TWAMP packet by a first preset time length, or the current time is separated from the time of receiving the first instruction by a second preset time length, but not limited thereto.
Wherein the sending the second TWAMP packet to the second tunnel endpoint network element includes: generating a second initial TWAMP message; stopping sending the message according to the second initial TWAMP message, and acquiring the second quantity; obtaining a second TWAMP message according to the second initial TWAMP message and the second quantity; and placing the second TWAMP message at the first position in a tunnel message sending queue, and starting to send the message.
The messages can be sent one by one in sequence.
Specifically, the generating the second initial TWAMP packet includes: generating a second initial TWAMP message under the condition of meeting a preset condition; wherein the preset condition comprises at least one of the following: receiving a second instruction; a first preset time interval is formed between the current time and the sending time of the first TWAMP message; the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
The second instruction may be user input or pre-stored.
An embodiment of the present invention further provides an information processing method, which is applied to a second tunnel endpoint network element, and as shown in fig. 3, the method includes:
step 31: receiving a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
step 32: stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then continuing to receive the messages;
step 33: under the condition of receiving a second TWAMP message sent by the first tunnel endpoint network element, stopping receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
step 34: and acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
The information processing method provided by the embodiment of the invention receives a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent; stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then continuing to receive the messages; under the condition of receiving a second TWAMP message sent by the first tunnel endpoint network element, stopping receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent; acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity; the method can realize triggering tunnel statistical data acquisition according to the received measurement message (namely, TWAMP message) to align sampling time points, realize accurate tunnel packet loss detection, greatly improve measurement precision, eliminate the influence of a bottom link, be suitable for various scenes and ensure the application range; in addition, the method can also realize measurement as required, and does not need to detect the packet loss rate by sending a series of measurement messages, thereby greatly reducing the bandwidth ratio of the measurement messages, reducing the measurement overhead, and well solving the problems of large overhead, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
Further, before stopping receiving the message, the method further includes: detecting the type of the received message; wherein the type includes at least one of a TWAMP message type and a user traffic message type.
Further, before detecting the type of the received packet, the method further includes: and controlling the message to enter a tunnel receiving queue under the condition of identifying the tunnel package of the received message.
The information processing method provided by the embodiment of the present invention is further described below with reference to multiple sides, such as a first tunnel endpoint network element and a second tunnel endpoint network element.
In view of the above technical problems, an embodiment of the present invention provides an information processing method, which relates to implementing packet loss measurement at a tunnel level by interacting TWAMP measurement packets at two ends of a tunnel and aligning time, and can also be understood as implementing accurate tunnel packet loss detection by extending TWAMP: aligning sampling time points by triggering tunnel statistical data acquisition by sending or receiving measurement messages; the packet loss can be detected as accurately as possible under the condition of not sensing the underlying network.
Specifically, as shown in fig. 4 (in the figure, a represents a statistical data collector, b represents a tunnel endpoint, c represents a TWAMP packet, d represents a user traffic packet, e represents a TWAMP packet, f represents a user traffic packet, g represents a TWAMP packet, h represents a tunnel endpoint, i represents a packet classifier, j represents a statistical data collector, k represents a tunnel packet sending queue, m represents a tunnel, and n represents a tunnel packet receiving queue), the TWAMP packet is sent and received by the tunnel endpoint, so that the TWAMP packet and the user traffic have a sequential characteristic, and the sending and receiving quantity of the user packets between any two TWAMP packets can be obtained; and the TWAMP message and the user message are also forwarded through the tunnel, so that the same forwarding path of the TWAMP message and the user message at the bottom layer is ensured. Specifically, the process involved in the scheme is as follows:
for the first tunnel endpoint network element side, firstly, an Initiator (a sending end) sends a TWAMP message (namely, a two-way active measurement protocol TWAMP message is generated); secondly, stopping processing the messages in the tunnel message sending queue (namely stopping sending the messages), triggering a counter (counter) for collecting the quantity of the sent messages in the tunnel by a statistical data collector, and at the moment, the newly arrived user flow messages need to enter the queue (namely the tunnel message sending queue) to be queued for sending; and thirdly, filling the counter (specifically, the counting information, namely the first quantity or the second quantity) in the TWAMP message, inserting the counter to the beginning of the queue, and restarting the queue for sending, so that the tunnel endpoint uniformly processes the TWAMP message and the user traffic and sends the TWAMP message and the user traffic one by one in sequence, and the time alignment and the accuracy of the statistical data of the TWAMP message are ensured.
Corresponding to the scheme of obtaining the packet loss data, the above operations need to be performed twice (i.e. the first number and the second number need to be sent), so as to ensure the start point time alignment and the end point time alignment of the statistical data.
For the second tunnel endpoint network element side, the far-end tunnel endpoint network element (namely the second tunnel endpoint network element) receives the message and identifies the tunnel encapsulation of the message; the tunnel message enters a tunnel receiving queue; sixthly, the message classifier detects that the message is a TWAMP message, suspends the processing of a tunnel message receiving queue (namely stops receiving the message) for the alignment time, triggers and counts a counter for collecting the number of the received messages of the tunnel by a statistical data collector, delivers the counter (specifically, counting information, namely, the third number or the fourth number) and the message to a reflector processing logic, and restarts the processing of the message receiving queue; finally, the reflector resolves the sending counter (i.e. the counting information of the sent message sent by the first tunnel endpoint network element side) and the receiving counter (i.e. the counting information of the received message obtained by the second tunnel endpoint network element side) carried in the TWAMP message, and records the sending counter and the receiving counter in pairs according to a sequence of n (nth time) and n +1 (n +1 time) (for example, a first number, a third number, a second number, a fourth number, or a first number, a second number, a third number, and a fourth number). The actual packet loss data can be calculated subsequently according to the following calculation method.
The above describes the unidirectional packet loss measurement, and if the tunnel endpoint (i.e., the second tunnel endpoint network element side) reflects the TWAMP packet received back to the source endpoint (the first tunnel endpoint network element side) and carries the receiving counter, the TWAMP Initiator may perform the single-ended forward packet loss measurement. Similarly, if the reverse packet loss is to be measured, the TWAMP message is reflected and a reverse sending counter is additionally carried to the TWAMP remote node. For details, reference may be made to the above description, which is not repeated herein.
With regard to the above-mentioned calculation method, i.e., the calculation method of the packet loss data based on the tunnel, the following is introduced:
the packet loss is calculated by comparing the common sent and received messages, e.g. as shown in fig. 5, the tunnel endpoint network element R1 at tn-4To tnThe time period message sending quantity is the difference between the samples of the sending messages of R1 at two corresponding times; the message received by the tunnel endpoint network element R2 in the corresponding time period is tn-3And tn+1Difference between samples of two time-received messages:
Loss(R1->R2)＝([tx]R1@tn-[tx]R1@tn-4)–([rx]R2@tn+1-[rx]R2@tn-3)；
wherein, Loss (R1- > R2) represents packet Loss data, [ tx ] R1@ tn represents the number of sent messages sent by R1 at the time tn, [ tx ] R1@ tn-4 represents the number of sent messages sent by R1 at the time tn-4, [ rx ] R2@ tn +1 represents the number of received messages of R2 at the time tn +1, and [ rx ] R2@ tn-3 represents the number of received messages of R2 at the time tn-3.
The encapsulation extension of the TWAMP packet is introduced as follows:
as shown in fig. 6, the message is in a format of a message sent by an Initiator, a dashed frame part is defined by a message extension, and the Initiator TX counter is a counter (i.e., an originating sending counter) for sending the message.
Further, the message in fig. 7 is in a format of a Reflector reflection message, and a sending counter (i.e., a sending end sending counter) of the forward source end message and a receiving counter (i.e., a receiving end receiving counter) of the forward destination end message are an Initiator TX counter and a Reflector RX counter, respectively; the sending counter of the reverse message is a Reflector TX counter (i.e., a reflection end sending counter).
From the above, the scheme provided by the embodiment of the invention is as follows:
(1) triggering tunnel message statistical data acquisition through TWAMP to align measurement time points;
(2) the bandwidth ratio of the measurement messages can be greatly reduced, firstly, the data are collected through the TWAMP to realize measurement according to needs, and secondly, the packet loss is not detected after a series of measurement messages are sent;
(3) the measurement precision can be greatly improved, the influence of a bottom link is eliminated, and the measurement is directly carried out according to the statistical data at the two ends of the tunnel.
An embodiment of the present invention further provides an information processing apparatus, which is applied to a first tunnel endpoint network element, and as shown in fig. 8, includes:
a first sending module 81, configured to send a first bidirectional active measurement protocol TWAMP packet to a second tunnel endpoint network element;
a second sending module 82, configured to send a second TWAMP packet to the second tunnel endpoint network element after sending the first TWAMP packet;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
The information processing device provided by the embodiment of the invention sends a first bidirectional active measurement protocol TWAMP message to a second tunnel endpoint network element; after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element; the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent; the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message is sent; the method can realize that the sampling time point is aligned by triggering the second tunnel endpoint network element to carry out tunnel statistical data acquisition by sending the measurement message (namely, the TWAMP message), realizes accurate tunnel packet loss detection, greatly improves the measurement precision, eliminates the influence of a bottom link, is suitable for various scenes and ensures the application range; in addition, the method can also realize measurement as required, and does not need to detect the packet loss rate by sending a series of measurement messages, thereby greatly reducing the bandwidth ratio of the measurement messages, reducing the measurement overhead, and well solving the problems of large overhead, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
Wherein the first sending module comprises: the first generation submodule is used for generating a first initial TWAMP message; a first processing sub-module, configured to stop sending the packet according to the first initial TWAMP packet, and obtain the first number; a second processing sub-module, configured to obtain the first TWAMP packet according to the first initial TWAMP packet and the first quantity; and the first sending submodule is used for placing the first TWAMP message at the first position in a tunnel message sending queue and starting to send the message.
Specifically, the generating the first initial TWAMP packet includes: and generating a first initial TWAMP message under the condition of receiving the first instruction.
Wherein the second sending module includes: the second generation submodule is used for generating a second initial TWAMP message; a third processing sub-module, configured to stop sending the packet according to the second initial TWAMP packet, and obtain the second number; a fourth processing sub-module, configured to obtain the second TWAMP packet according to the second initial TWAMP packet and the second quantity; and the second sending submodule is used for placing the second TWAMP message at the first position in a tunnel message sending queue and starting to send the message.
Specifically, the generating the second initial TWAMP packet includes: generating a second initial TWAMP message under the condition of meeting a preset condition; wherein the preset condition comprises at least one of the following: receiving a second instruction; a first preset time interval is formed between the current time and the sending time of the first TWAMP message; the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
The implementation embodiments of the information processing method at the first tunnel endpoint network element side are all applicable to the embodiment of the information processing apparatus, and the same technical effects can be achieved.
An embodiment of the present invention further provides an information processing apparatus, which is applied to a second tunnel endpoint network element, as shown in fig. 9, and includes:
a first receiving module 91, configured to receive a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
a first processing module 92, configured to stop receiving the packet according to the first TWAMP packet, obtain a third number of received packets, and then start to continue receiving the packet;
a second processing module 93, configured to, when a second TWAMP packet sent by the first tunnel endpoint network element is received, stop receiving the packet again according to the second TWAMP packet, and obtain a fourth number of received packets; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
the first obtaining module 94 is configured to obtain the packet loss data according to the first number, the second number, the third number, and the fourth number.
The information processing device provided by the embodiment of the invention receives a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent; stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then continuing to receive the messages; under the condition of receiving a second TWAMP message sent by the first tunnel endpoint network element, stopping receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent; acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity; the method can realize triggering tunnel statistical data acquisition according to the received measurement message (namely, TWAMP message) to align sampling time points, realize accurate tunnel packet loss detection, greatly improve measurement precision, eliminate the influence of a bottom link, be suitable for various scenes and ensure the application range; in addition, the method can also realize measurement as required, and does not need to detect the packet loss rate by sending a series of measurement messages, thereby greatly reducing the bandwidth ratio of the measurement messages, reducing the measurement overhead, and well solving the problems of large overhead, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
Further, the information processing apparatus further includes: the first detection module is used for detecting the type of the received message before stopping receiving the message; wherein the type includes at least one of a TWAMP message type and a user traffic message type.
Further, the information processing apparatus further includes: the first control module is used for controlling the message to enter a tunnel receiving queue under the condition that the tunnel encapsulation of the received message is identified before the type of the received message is detected.
The implementation embodiments of the information processing method at the second tunnel endpoint network element side are all applicable to the embodiment of the information processing apparatus, and the same technical effects can be achieved.
An embodiment of the present invention further provides a tunnel endpoint network element, where the tunnel endpoint network element is a first tunnel endpoint network element, as shown in fig. 10, and the tunnel endpoint network element includes: a processor 101 and a transceiver 102;
the processor 101 is configured to send a first bidirectional active measurement protocol TWAMP packet to a second tunnel endpoint network element through the transceiver 102;
after sending the first TWAMP packet, sending a second TWAMP packet to the second tunnel endpoint network element through the transceiver 102;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
The tunnel endpoint network element provided by the embodiment of the invention sends a first bidirectional active measurement protocol TWAMP message to a second tunnel endpoint network element; after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element; the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent; the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message is sent; the method can realize that the sampling time point is aligned by triggering the second tunnel endpoint network element to carry out tunnel statistical data acquisition by sending the measurement message (namely, the TWAMP message), realizes accurate tunnel packet loss detection, greatly improves the measurement precision, eliminates the influence of a bottom link, is suitable for various scenes and ensures the application range; in addition, the method can also realize measurement as required, and does not need to detect the packet loss rate by sending a series of measurement messages, thereby greatly reducing the bandwidth ratio of the measurement messages, reducing the measurement overhead, and well solving the problems of large overhead, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
Wherein the processor is specifically configured to: generating a first initial TWAMP message; according to the first initial TWAMP message, stopping sending the message, and acquiring the first quantity; obtaining the first TWAMP message according to the first initial TWAMP message and the first quantity; and placing the first TWAMP message at the first position in a tunnel message sending queue, and starting to send the message through the transceiver.
Specifically, the processor is specifically configured to: generating a first initial TWAMP message upon receiving a first instruction through the transceiver.
Wherein the processor is specifically configured to: generating a second initial TWAMP message; stopping sending the message according to the second initial TWAMP message, and acquiring the second quantity; obtaining a second TWAMP message according to the second initial TWAMP message and the second quantity; and placing the second TWAMP message at the first position in a tunnel message sending queue, and starting to send the message through the transceiver.
Specifically, the processor is specifically configured to: generating a second initial TWAMP message under the condition of meeting a preset condition; wherein the preset condition comprises at least one of the following: receiving, by the transceiver, a second instruction; a first preset time interval is formed between the current time and the sending time of the first TWAMP message; the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
The implementation embodiments of the information processing method at the first tunnel endpoint network element side are all applicable to the embodiment of the tunnel endpoint network element, and the same technical effect can be achieved.
An embodiment of the present invention further provides a tunnel endpoint network element, where the tunnel endpoint network element is a second tunnel endpoint network element, as shown in fig. 11, and the tunnel endpoint network element includes: a processor 111 and a transceiver 112;
the processor 111 is configured to receive, through the transceiver 112, a first bidirectional active measurement protocol TWAMP packet sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
controlling the transceiver 112 to stop receiving the packets according to the first TWAMP packet, and acquiring a third number of received packets, and then starting to continue receiving the packets through the transceiver 112;
under the condition that a second TWAMP message sent by the first tunnel endpoint network element is received through the transceiver 112, controlling the transceiver 112 to stop receiving messages again according to the second TWAMP message, and acquiring a fourth number of received messages; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
and acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
After the fourth number is obtained, further reception of messages may be started by the transceiver 112.
The tunnel endpoint network element provided by the embodiment of the invention receives a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent; stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then continuing to receive the messages; under the condition of receiving a second TWAMP message sent by the first tunnel endpoint network element, stopping receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent; acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity; the method can realize triggering tunnel statistical data acquisition according to the received measurement message (namely, TWAMP message) to align sampling time points, realize accurate tunnel packet loss detection, greatly improve measurement precision, eliminate the influence of a bottom link, be suitable for various scenes and ensure the application range; in addition, the method can also realize measurement as required, and does not need to detect the packet loss rate by sending a series of measurement messages, thereby greatly reducing the bandwidth ratio of the measurement messages, reducing the measurement overhead, and well solving the problems of large overhead, low precision, small application range and the like of an information processing scheme for packet loss data detection in the prior art.
Further, the processor is further configured to: before stopping receiving the message, detecting the type of the received message; wherein the type includes at least one of a TWAMP message type and a user traffic message type.
Still further, the processor is further configured to: before detecting the type of the received message, controlling the message to enter a tunnel receiving queue under the condition of identifying the tunnel encapsulation of the received message.
The implementation embodiments of the information processing method at the second tunnel endpoint network element side are all applicable to the embodiment of the tunnel endpoint network element, and the same technical effect can be achieved.
The embodiment of the invention also provides a tunnel endpoint network element, which comprises a memory, a processor and a program which is stored on the memory and can be operated on the processor; the processor implements the information processing method of the first tunnel endpoint network element side when executing the program; or, the processor implements the information processing method on the second tunnel endpoint network element side when executing the program.
The implementation embodiments of the information processing method at the first tunnel endpoint network element side or the second tunnel endpoint network element side are both applicable to the embodiment of the tunnel endpoint network element, and the same technical effects can be achieved correspondingly.
The embodiment of the present invention further provides a readable storage medium, on which a program is stored, where the program, when executed by a processor, implements the steps in the information processing method on the first tunnel endpoint network element side; or, the program is executed by a processor to implement the steps in the information processing method on the second tunnel endpoint network element side.
The implementation embodiments of the information processing method at the first tunnel endpoint network element side or the second tunnel endpoint network element side are all applicable to the embodiment of the readable storage medium, and the same technical effects can be achieved.
It should be noted that many of the functional components described in this specification are referred to as modules/sub-modules in order to more particularly emphasize their implementation independence.
In embodiments of the invention, the modules/sub-modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (20)
1. An information processing method applied to a first tunnel endpoint network element, comprising:
sending a first bidirectional active measurement protocol TWAMP message to a second tunnel endpoint network element;
after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
2. The information processing method according to claim 1, wherein the sending the first TWAMP packet to the second tunnel endpoint network element includes:
generating a first initial TWAMP message;
according to the first initial TWAMP message, stopping sending the message, and acquiring the first quantity;
obtaining the first TWAMP message according to the first initial TWAMP message and the first quantity;
and placing the first TWAMP message at the first position in a tunnel message sending queue, and starting to send the message.
3. The information processing method according to claim 2, wherein the generating a first initial TWAMP packet includes:
and generating a first initial TWAMP message under the condition of receiving the first instruction.
4. The information processing method according to any one of claims 1 to 3, wherein the sending the second TWAMP packet to the second tunnel endpoint network element includes:
generating a second initial TWAMP message;
stopping sending the message according to the second initial TWAMP message, and acquiring the second quantity;
obtaining a second TWAMP message according to the second initial TWAMP message and the second quantity;
and placing the second TWAMP message at the first position in a tunnel message sending queue, and starting to send the message.
5. The information processing method according to claim 4, wherein the generating a second initial TWAMP packet includes:
generating a second initial TWAMP message under the condition of meeting a preset condition;
wherein the preset condition comprises at least one of the following:
receiving a second instruction;
a first preset time interval is formed between the current time and the sending time of the first TWAMP message;
the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
6. An information processing method applied to a second tunnel endpoint network element, comprising:
receiving a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then continuing to receive the messages;
under the condition of receiving a second TWAMP message sent by the first tunnel endpoint network element, stopping receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
and acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
7. The information processing method according to claim 6, further comprising, before stopping receiving the message:
detecting the type of the received message;
wherein the type includes at least one of a TWAMP message type and a user traffic message type.
8. The information processing method according to claim 7, further comprising, before detecting the type of the received packet:
and controlling the message to enter a tunnel receiving queue under the condition of identifying the tunnel package of the received message.
9. An information processing apparatus applied to a first tunnel endpoint network element, comprising:
a first sending module, configured to send a first bidirectional active measurement protocol TWAMP packet to a second tunnel endpoint network element;
a second sending module, configured to send a second TWAMP packet to the second tunnel endpoint network element after sending the first TWAMP packet;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
10. The information processing apparatus according to claim 9, wherein the first transmission module includes:
the first generation submodule is used for generating a first initial TWAMP message;
a first processing sub-module, configured to stop sending the packet according to the first initial TWAMP packet, and obtain the first number;
a second processing sub-module, configured to obtain the first TWAMP packet according to the first initial TWAMP packet and the first quantity;
and the first sending submodule is used for placing the first TWAMP message at the first position in a tunnel message sending queue and starting to send the message.
11. The information processing apparatus according to claim 10, wherein said generating the first initial TWAMP packet includes:
and generating a first initial TWAMP message under the condition of receiving the first instruction.
12. The information processing apparatus according to any one of claims 9 to 11, wherein the second transmission module includes:
the second generation submodule is used for generating a second initial TWAMP message;
a third processing sub-module, configured to stop sending the packet according to the second initial TWAMP packet, and obtain the second number;
a fourth processing sub-module, configured to obtain the second TWAMP packet according to the second initial TWAMP packet and the second quantity;
and the second sending submodule is used for placing the second TWAMP message at the first position in a tunnel message sending queue and starting to send the message.
13. The information processing apparatus according to claim 12, wherein said generating a second initial TWAMP packet includes:
generating a second initial TWAMP message under the condition of meeting a preset condition;
wherein the preset condition comprises at least one of the following:
receiving a second instruction;
a first preset time interval is formed between the current time and the sending time of the first TWAMP message;
the current time and the time of receiving the first instruction are separated by a second preset time length; the first instruction is an instruction for generating the first TWAMP message.
14. An information processing apparatus applied to a second tunnel endpoint network element, comprising:
a first receiving module, configured to receive a first bidirectional active measurement protocol TWAMP message sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
the first processing module is used for stopping receiving the messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then starting to continue receiving the messages;
a second processing module, configured to, when a second TWAMP packet sent by the first tunnel endpoint network element is received, stop receiving the packet again according to the second TWAMP packet, and obtain a fourth number of received packets; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
and the first obtaining module is used for obtaining the packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
15. The information processing apparatus according to claim 14, further comprising:
the first detection module is used for detecting the type of the received message before stopping receiving the message;
wherein the type includes at least one of a TWAMP message type and a user traffic message type.
16. The information processing apparatus according to claim 15, further comprising:
the first control module is used for controlling the message to enter a tunnel receiving queue under the condition that the tunnel encapsulation of the received message is identified before the type of the received message is detected.
17. A tunnel endpoint network element, the tunnel endpoint network element being a first tunnel endpoint network element, comprising: a processor and a transceiver;
the processor is configured to send a first bidirectional active measurement protocol TWAMP packet to a second tunnel endpoint network element through the transceiver;
after sending the first TWAMP message, sending a second TWAMP message to the second tunnel endpoint network element through the transceiver;
the first TWAMP message carries a first number of messages which are sent before the first TWAMP message is sent;
the second TWAMP message carries a second number of messages that have been sent before the second TWAMP message was sent.
18. A tunnel endpoint network element, said tunnel endpoint network element being a second tunnel endpoint network element, comprising: a processor and a transceiver;
the processor is configured to receive, through the transceiver, a first bidirectional active measurement protocol TWAMP packet sent by a first tunnel endpoint network element; the first TWAMP packet carries a first number of packets sent by the first tunnel endpoint network element before the first TWAMP packet is sent;
controlling the transceiver to stop receiving messages according to the first TWAMP message, acquiring a third quantity of the received messages, and then starting to continue receiving the messages through the transceiver;
under the condition that a second TWAMP message sent by the first tunnel endpoint network element is received through the transceiver, controlling the transceiver to stop receiving the message again according to the second TWAMP message, and acquiring a fourth quantity of the received message; the second TWAMP message carries a second number of messages that have been sent by the first tunnel endpoint network element before the second TWAMP message is sent;
and acquiring packet loss data according to the first quantity, the second quantity, the third quantity and the fourth quantity.
19. A tunnel endpoint network element comprising a memory, a processor, and a program stored on the memory and executable on the processor; characterized in that the processor implements the information processing method according to any one of claims 1 to 5 when executing the program; or,
the processor realizes the information processing method according to any one of claims 6 to 8 when executing the program.
20. A readable storage medium on which a program is stored, characterized in that the program realizes the steps in the information processing method according to any one of claims 1 to 5 when executed by a processor; or,
the program, when executed by a processor, implements the steps in the information processing method of any one of claims 6 to 8.
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