WO2007033542A1 - A method for testing the network capability and the device thereof - Google Patents

A method for testing the network capability and the device thereof

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Publication number
WO2007033542A1
WO2007033542A1 PCT/CN2006/001154 CN2006001154W WO2007033542A1 WO 2007033542 A1 WO2007033542 A1 WO 2007033542A1 CN 2006001154 W CN2006001154 W CN 2006001154W WO 2007033542 A1 WO2007033542 A1 WO 2007033542A1
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WO
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Application
Patent type
Prior art keywords
test
message
node
information
extension
Prior art date
Application number
PCT/CN2006/001154
Other languages
French (fr)
Chinese (zh)
Inventor
Jian Zhang
Hongfei Chen
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing packet switching networks
    • H04L43/50Testing arrangements

Abstract

A method for testing the network capability is used in the IPv6 network which has multiple transmission nodes, the IPv6 test expand header carrying the test information is set in the IPv6 data packet, the method includes: each transmission node adds the test information to the IPv6 test expand header of the transmitted IPv6 data packet respectively, and determines the current network capability based on the test information of each transmission node in the IPv6 test expand header of the received IPv6 data packet when the IPv6 data packet is transmitted between the transmission nodes. By using this invention, it can facilitate the capability test scheme of the IPv6 network and reduce the cost of the network capability test.

Description

A network performance testing method and a device

FIELD

The present invention relates to network communication technologies, and particularly, to a method and apparatus for testing network performance. BACKGROUND OF THE INVENTION

With the growing popularity of the Internet (Internet), the number of Internet users is exponentially trend was incremented. While the number of users grow, the application is hosted on a network is constantly increasing, such as those based video (video), voice (voice), data (data) applications, etc., so traffic on the Internet is growing rapidly. How operators to ensure the normal operation of the network, such as how to ensure the quality of customer service is important and critical applications has become an important factor in the operator's user evaluation.

In order to ensure the normal operation of the network, you need to understand the actual situation of network operation, it is necessary for the performance of the network for accurate testing to obtain network performance parameters and operating conditions of the network-related (such as: traffic data, etc.), and these network performance the final parameter will serve all aspects of network engineering.

For the IPv4 network, many network test system solutions already exist, various schemes IPv4 network testing simple test area can be divided into passive and active testing two kinds.

The so-called passive test is placed in the key of each network node ί some traffic monitoring equipment, the actual traffic in the network is sampled by the monitoring device, to analyze the state of the network traffic based on the results of use, and gives the actual network analysis results running condition.

The so-called active test is the test data traffic injected on a network, the network state is determined based on the response parameter test data results of the network, and to determine the state of actual operation of the network.

Since the deployment of IPv6 network has just begun, many IPv6 network is still in the experimental stage. Therefore, the IPv6 network has not yet developed its dedicated network performance testing method, the current IPv6 network, network performance testing program is still inherited the test system of IPv4, IPv4 network will soon test scheme to IPv6 network slightly modified after . Since the passive test method IPv4 network requires additional test monitoring equipment, the active test method requires configuration dedicated test packet, the test packets are typically carried by the User Datagram Protocol (UDP) or Transmission Control Protocol (TCP), a test implementation of complex network performance. Visible, network performance testing methods IPv6 network to be further improved. SUMMARY

Object of the present invention is to provide a method and apparatus for network performance testing, performance testing program can be simplified IPv6 network, P contention low cost network performance testing.

The present invention discloses a method for testing network performance, applied in an IPv6 network comprising a plurality of transit nodes, the test IPv6 extension header is provided for carrying the test information in the IPv6 data jobs taken herein; the method comprising:

When the IPv6 packet is transmitted between said plurality of transit nodes, each transit node of each test were added to the test information in an IPv6 extension header of the IPv6 packet transmitted in and received the data packet according to IPv6 transmitting the test information of each node in an IPv6 extension header of the test to determine the current network performance.

Wherein said test IPv6 extension header comprises: a next header extension type, header extension length field for carrying the test message and the test information set according to the test requirements.

Wherein the test information comprises: a message sequence number; the test message field comprising: a message sequence number field carrying a message sequence number; the originating node transmitting the transmitted IPv6 packet is the IPv6 packets in the message sequence number field in the IPv6 extension header added to the test current IPv6 packet transmitted message sequence number;

Determining the current network performance testing comprising the transmission information of each node in the IPv6 header extension test: the transmitting node obtains in each of the respective data it has received IPv6 packet extension headers in an IPv6 test message carried by sequence number field message sequence number, and determines the IPv6 packet loss if the transmission link and / or scrambled according to the continuity of the sequence number of each message.

Wherein the test message field comprising: a first control command for carrying flag information and a data field for a message carrying the test information, the first control command information for instructing the transit node needs the message data field ;

The addition of the test information comprises a transit node in an IPv6 extension header in the test: the control flag command information carrying field indicates the required processing for each of the nodes of the message transmission of the respective data field test information is added to the message data field in;

Determining the current test information comprising the network performance test IPv6 extension header: the need to handle the message transmitting node determines the number noted field IPv6 packet transfer wheel according to the link test message information carried in the data field link estimating parameters.

Wherein the test message field comprising: means for supporting a second control command flag information, the second control command information for indicating the test information to be recorded.

Wherein the message data field comprises: at least one option for carrying test test information.

Wherein the message data field further comprises: means for aligning the test a byte padding options options and / or at least two bytes of padding options.

Wherein the test options include: option type, length, and options options for carrying the test information data.

Wherein, the option data comprising: transmitting node addresses the need to process the message data field and added to the test information.

Wherein the test message ¼ further comprising: means for identifying the current IPv6 packet type of the message type field.

Wherein said message type is: test message unidirectional, bidirectional test request message and response message bidirectional test in which any one of the three.

Wherein the test message field further comprising: a reserved field.

Wherein said first control command information indicating a node needs to transmit the message data processing field comprising: a destination node, or comprising: an intermediate node and the destination node.

Wherein the test information is a time stamp, the link evaluation parameter comprises: transmission delay and / or jitter.

Wherein the test information is a time stamp, the second control command information to be recorded indicated by the test information comprising: a timestamp inbound interface and / or the timestamp interfaces.

Wherein said link comprises evaluation parameters: single transmission node processing the IPv6 packet delay, jitter of the link in any of the three and the transmission delay between different transmission links between different nodes of the transit node one or any combination of the three.

Wherein, as the IPv6 packet: an IPv6 IP layer packets or data packets based on application layer protocols of the IPv6; .. the network performance testing comprising: an IP layer network performance testing, IPv6-based application layer ^ test of network protocols. '

Wherein the application layer based on the IPv6 protocol: Transmission Control Protocol TCP, the UDP User Datagram Protocol, File Transfer Protocol FTP, Dynamic Host Configuration Protocol DHCP, Hypertext Transfer Protocol HTTP.

The present invention also discloses a network performance test apparatus, the apparatus comprising:

Configuration module for generating a test information indicates the test requirements and output to the test management module;

Extension header processing module for receiving a start command from the test management module, according to the test start command information carried in the test configuration of IPv6 extension header carries the IPv6 data and outputs the test IPv6 extension header packets to the external network test equipment; from the external network device receives the IPv6 packet having the IPv6 extension headers test, test parsing the IPv6 extension header, added information representative of network performance testing in the test IPv6 extension header; test IPv6 extension header carries the output of IPv6 data packet to the external network test equipment, the test information, or extracts various test IPv6 extension header and output to the test management module;

Test management module, for receiving test information indicative of the test for the demand from the configuration module, an output start command of the test carried to the extension header information processing module, the test procedure; read from the header extension processing module on behalf of a variety of network performance test information, analyze test information obtained test results are representative of network performance.

Wherein the configuration module is further configured to receive user information from outside, the means for generating test information indicative of test requirements according to the configuration information.

Wherein the management module is further used for the test start command request test information from the configuration module or the timing of the periodic output to the header extension processing module, the timing of the test procedure or periodically.

By the above technical solution described above, the present invention is provided by carrying the test information test IPv6 extension headers in an IPv6 data packet, the test of the present invention can be provided without additional test equipment monitoring, configuration of the test does not require a dedicated network performance in the case of packets, network performance testing is completed, so that a great degree of network performance testing side; 'according to the present invention may be extended to test the test option IPv6 extension header of the message body in accordance with the specific test requirements to meet a variety of network testing requirements; message sequence number provided by the present invention can detect the IPv6 data packet transmission link loss, disorder phenomena; provided by each transit node for instructing the intermediate node comprises a record including the time stamp to control command information, so that the present invention is capable of detecting an evaluation parameter IPv6 link packet data transmission link transmission delay between different transmission nodes, jitter, and each transit node processing IPv6 packet delay; setting message type, of the present invention can be easily detected IPv6 packet from the source node to the destination node Unidirectional transmission link network performance and the network performance from the source node to the destination node the source node then the IPv6 packet data transmission link is bidirectional; '' by the present invention is based on an increase in the application layer of the IPv6 data packet IPv6 extended test head can achieve the performance test of each party a high-level protocol; in order to achieve a simplified network performance testing method aspect of the present invention provides, the purpose of reducing the costs of testing network performance. BRIEF DESCRIPTION OF THE INVENTION Figure 1 a schematic structural diagram of the present method of testing the IPv6 extension header accompanying drawings;

2A is a schematic structural diagram of a test byte padding options;

2B is a schematic structural diagram of FIG N bytes filled test options;

The method of the present invention, FIG. 3A for a schematic view of the structure of the test interfaces timestamp option record;

3B, the method of the present invention for the interface structural diagram of the time stamp option test recording;

FIG 4 is a schematic process of the invention is applied to a one-way performance test;

FIG 5 is a schematic diagram of the test method of the invention applied to a one-way performance piecewise;

FIG 6 is a schematic view of a two-way performance test method applied to the invention;

A structural diagram of a preferred embodiment of the device of the present invention, the solid 7 ^. Embodiment of the invention,

The core of the present invention are: the test IPv6 extension header is provided for carrying the test information in the IPv6 packet, the IPv6 packet transfer process, there are tests for transmitting an IPv6 extension header information in a test network through the carrier for network performance testing.

The following further description is based on the technical solution of the present invention, the core idea of ​​the present invention is provided.

IPv6 protocol to solve the IPv4 protocol's many problems, such as address shortage problems, while, in order to improve the processing efficiency of the network equipment, the IPv6 protocol to simplify the structure of the IP packet header for IPv4 additional packet header information, ·. IPv6 the method of using the extended header. Currently, RFC 2460 defines the following in IPv6 extension headers: by-hop options header (Hop-by-Hop Options Header), routing head (Routing (Type 0) Header), sub-titles (Fragment Header), Destination Options header (Destination Options header), authentication header (authentication header), safety data package (ESP, encapsulating security Payload) header

(Header λ

The present inventors conducted a comprehensive IPv6 protocol, to add a dedicated network performance for actively testing the test IPv6 extension headers in an IPv6 data packet, the IPv6 extension header for carrying the test test information, comprising: an IPv6 extension header of the next type, and an extension header length field carries the test message test information. The test information test message carried by the particular domain may be set based on actual test requirements.

Wherein the test field information carried test message may contain the message content type, flag, message sequence numbers and message body, etc. provided in accordance with the test requirements. I.e., the message body data field message, primarily for carrying real test data, test data is mainly used for calculating and determining network performance. Message data field may be present in the form selected from the group ^, so that network performance test data stored in all IPv6 extension header field of the message data in the form of options, these options may be referred to as test options, comprising: option type, option length and options for data carrying test data. To facilitate reading the test noted in the number of data field message, a message carrying the test data of the option field according to the present invention may be a byte padding options and / or at least two bytes of padding configuration options.

Test Options can be extended depending on the necessary network performance testing requirements.

Below will be described a specific example of a schematic structure of the test Τ Show IPv6 header IPv6 extension header testing of the present invention, a method of the present invention in FIG.

In FIG 1, Payload Proto indicates the type of an IPv6 extension header, IPv6 extension header type value of the test of the present invention should be distinguished from the above values ​​of several conventional types of IPv6 extension headers. Header Len test IPv6 extension header indicates the length, the length value does not include the first 8 bytes of the test IPv6 extension header, and the like may be 8 bytes for the unit. When 8-byte value for the unit length, the present invention requires eight-byte alignment method corresponding byte stuffing. MH Type representing a message type of test message Test IPv6 extension header, where the message types may include: a single test message, a bidirectional test request message, response message and the like or two-way test. For example: MH Type 0 indicates a single test message, MH Type 1 indicates that the test is a two-way test message request message, MH Type is represented by bidirectional test message Test 2 acknowledgment message and the like. The message type may be required for further expansion and is defined according to the actual test. D is a control command for carrying a first flag information, the first control command information for instructing the transit node needs the message data field. For example: when D is 0, the data field indicates that the message is only processed by the destination node; when D is 1, indicates that the message data field to be processed by the intermediate node and the destination node. Here, the data transmission node processes the message field mainly refers to: a data field added to the message timestamp; Further, when the source node originating IPv6 packet, is sure to join their own time stamp message data field. And I O is a second control command for carrying the flag information, the second control command message indicating a need for the recording of the test information (eg: Interface stamp, time stamp, etc. into the interface). For example: I inbound interface indicating whether the recording time stamp, and O indicating whether a recorded timestamp of the interface; when I is 0, indicates the recording transport nodes need not process the message data field message timestamp data field into the interface; if I is 1, showing the message transmitting processing nodes need to be recorded into the data field of the time stamp message data interfaces city; when 0 is 0, represents transmission node needs to process the message data field is not destructive 'message time stamp data field of recording an Interface ; when O is 1, represents a transmission node needs to process the message data field to be recorded in the message data interfaces timestamp field. Reserved (Reserved) as a reserved field. Sequence (Sequence) is the message sequence number, mainly for two-way and two-way test test message request message matching the response message, message sequence number Han request message to the testing request message and the message sequence number corresponding to the bidirectional test response message may be the same, so that the test can be easily determined response message is a bidirectional message in response to which bidirectional testing request message. Meanwhile, if the destination node message sequence number to each of the sequentially received IPv6 packet extension header of the IPv6 test jump occurs in the considered packet loss and / or scrambled. Data message (Message Data) indicates that the message body, the message data field, may be comprised of various test options, such as: the timestamp option inbound interface and outbound interface timestamp option and the like. Eventually receive transmissions originating node transit node where the source node to carry the test IPv6 extension header of the IPv6 packet, the destination node for the IPv6 packet; when the message type is a two-way test reply message, the reply message bidirectional test before the corresponding request message sent by a two-way test, then the default bearer response message to the source node to test IPv6 packet is contained ^ bidirectional testing of its corresponding destination node a request message, and the reply message bidirectional test object node to the source node for the bidirectional test request message.

Above Message Data in testing options may be employed Type - length - value (TLV, Type-Length-Value) format, type (Type) indicates option type, length (lengt) indicates option length, its value in the surgery including Type and Length length, specific test data bearer test option values ​​(value) in: Message data in, may further comprise one or more alignment for each test a byte padding options options and / or at least two byte padding options, For example: Padl (i.e.: TLV option a filler byte) and padn (i.e.: TLV N bytes of padding option). The N a positive integer not less than 2, therefore N is at least two bytes of padding bytes fill options options. Here, each test set option is 8 bytes, a byte may be used and / or at least two bytes of padding so that each test options options 8 byte aligned.

2A is a schematic structural diagram of a byte stuffing options. In FIG. 2A, Type 0, indicates a byte padding options. A byte stuffing option is a special case of the TLV format, i.e., there is no option and the option length field value. This option is only for filling a test byte, byte padding if necessary more than one section of Polo. If you want to fill two or more bytes, will have to use PadN form filling options.

FIG 2B is a schematic view of the structure of N bytes of padding options. FIG. 2B, Type 1, N represents a byte stuffing options, the option length (Option Length) denotes the actual length of N bytes of fill options, the option data (Option Data) representing the content of the filler. When the timestamp option Interface test message for transmission node carrying a source node, intermediate node, destination node receives the other IPv6 extension header carries the test,: Message Data The test options may include a plurality of different types of tests carried options, such as Another example: when the timestamp option for an interface to the node carrying the test message transmission source node, an intermediate node, the destination node transmits the like IPv6 extension header carries the test. Test different options for different types of the value of their options, and the option to extend the test in accordance with actual test requirements.

The following two examples illustrate specific implementations Message Data test options.

When the test message is a test message or a single two-way test request message, the first predetermined control command information indicated by the transmitting node messages need to handle the data field (such as: a destination node or an intermediate node and the destination node) may itself from the interface receives the IPv6 packet carrying the timestamp option IPv6 test itself and the address of the interface in the form of the carrier of FIG. 3A in the IPv6 packet extension header of the IPv6 test matchmaker message data inbound interface timestamp option.

When the test message is a response message Bidirectional ^, the first predetermined control command information indicated by the transit node needs (e.g., message data fields: destination node or an intermediate node and the destination node, the destination node is the corresponding bidirectional test Huan source node message corresponding to the test request message) that it receives from the interface carrying the test option IPv6 IPv6 data packets and the time stamp carried in the IPv6 interface address data in the form of packets 3Α FIG. Interface test the timestamp option IPv6 extension headers in the Message Data.

FIG 3A structural diagram of an interface for recording the timestamp option test method of the present invention. Figure 3A, Type 2, showing the interface into the test option timestamp option. When the need to process the first control command information indicated by the respective nodes transmit data field of the message (eg: an intermediate node or the intermediate node and the destination node) receiving the test is completed the IPv6 extension header carries a number of IPv6 packets from the interface link after the second control, for indicating the test information to be recorded in accordance with the test IPv6 extension header command information (here indicating the test information is to be recorded: the incoming interface timestamp), the timestamp, and in this case the IPv6 address of the interface the test carried IPv6 extension header in the Message Data Interface Type is among the timestamp option 2.

When the test message is a test message or a single two-way test request message, the first predetermined control command information indicated by the transmitting node messages need to handle individual data fields (such as: a destination node or an intermediate node and the destination node) may be from test IPv6 extension header of the Interface message data interface for sending the timestamp option IPv6 packets carrying IPv6 test timestamp option and the interface address, the IPv6 data carried in packets in the form of FIG. 3B .

When the test message is a response message in response to a two-way test, each transit node needs to process the message a first data field indicating the control command information (such as: the destination node or an intermediate node and the destination node, the destination node corresponding message is the bidirectional test corresponding to the source node of the bidirectional test request message) can be sent to the interface which carries out from the IPv6 data packet timestamp option IPv6 test and an interface address, the test carried to IPv6 extension headers in the form of FIG. 3B message data among the interfaces in the timestamp option.

The method of the present invention, FIG. 3B with structural diagram of 'an interface for recording the test timestamp option. In FIG. 3B, Type 3, the test indicates an option an interface timestamp option. After: (source, destination and intermediate nodes such as) a transmission completion from the IPv6 packets carrying the test IPv6 extension header need to be addressed when the interface link message data fields each transit node a first control command information indicated the test IPv6 extension header used to indicate the test information to be recorded a second control command information (here indicating the test information to be recorded is: Interface timestamp), the timestamp, and at this time the IPv6 address of the egress carrier message data test IPv6 extension headers in the IPv6 packet to the outbound interface Type 3 timestamp option.

The following network performance in several typical test applications of the technical solution of the present invention will be described the present invention based on the above test IPv6 extension header manner.

Example 1, the one-way performance test IPv6 protocol, as shown in FIG. Unidirectional IPv6 protocol performance testing is an important method of evaluating the performance of the IP network layer, such as testing performance indicators IP packet transmission delay, jitter is an important indicator of the health of the network. During performance testing unidirectional IPv6 protocol, the test node to the destination node. Here, the test node is a transit node network performance is determined in accordance with IPv6 test expanding raising of the test head carrier information.

FIG 4 is a schematic process of the invention is applied to a one-way performance test. 4, the test node to the destination node. The source node transmits a test IPv6 extension header carries an IPv6 data packet, the IPv6 header extension test message type unidirectional test message, flag D may be set to 0, indicating that the test message is only processed by the destination node, the flag I can be set to 1 to indicate the destination node interfaces into the recording time stamp, O flag may be set to 1 to indicate the source node records the timestamp interfaces.

A source node into the data packet in the IPv6 test IPv6 packet extension headers it sends out an interface timestamp t, for example: an interface to the IPv6 test carried timestamp ^ extended header of the Interface Message Data timestamp options.

The intermediate nodes between the source node and the destination node are not processing the test message. When the destination node receives the IPv6 packets carrying the test IPv6 extension headers, the receiving time stamp recording the received IPv6 packet is t 2 (i.e., the timestamp Interface).

The method described above can be the source node continues to send IPv6 packets carrying the test IPv6 extension headers, so that the destination node obtained plurality of sets of different source node and a timestamp corresponding to the interface to the destination node into a time stamp interfaces, the destination node an interface node can be a time stamp and the destination node corresponding to the time stamp calculated directly into the interface delay and jitter IPv6 packet transmission link from the source node to the destination node according to the different sets of sources.

When the check during performance testing IPv6 protocol, the source node originating the test IPv6 extension header carries the IPv6 data packets, the sequence may be contiguous allocation message sequence number for the IPv6 data packets, for example: IPv6 data each packet message sequence number is incremented natural number. Thus, when the destination node according to the continuity of the message sequence number of the respective IPv6 packet may determine whether the current network packet loss and / or scrambled, for example: when the message sequence number is detected IPv6 packet it receives a sequence of jumps occur or out of order and so on, then explain the phenomenon of packet loss or network data packet disorder has occurred.

Example 2, one-way piecewise IPv6 protocol performance tests, as illustrated in FIG.

FIG 5 is a schematic diagram of the test method of the invention applied to a one-way performance piecewise. 5, the test node to the destination node. The source node transmits a test IPv6 extension header carries an IPv6 data packet, the IPv6 extension header in the test should be a one-way message type test message, the test flag bits of an IPv6 extension header may request the IPv6 packet through each an intermediate node (the intermediate node 1 in FIG. 5 to the intermediate node of N) timestamps are recorded into the interface, the interface to the time stamp, for recording the source node only IPv6 packet timestamp outgoing interface, for recording the destination node only IPv6 packet the inbound interface time stamp. The flag may be set to 1 D, indicating that the test message requires an intermediate node processing; I flag bit may be set to 1, indicating the destination node and the intermediate node records the time stamp into the interface, i.e. the destination node, the intermediate node need to receive incoming interface timestamp option IPv6 packet receiving time stamp is carried in IPv6 extension header of the test type; O flag bit may be set to 1 to indicate the source node and the intermediate node records the timestamp interfaces, i.e., the source node and the intermediate node needs send IPv6 data packet transmission time stamp carried in an IPv6 extension header interface to the test timestamp option.

When carrying the IPv6 extension header IPv6 test data packets transmitted from the source node to the destination node, the test IPv6 extension headers IPv6 destination node received the data packet will carry the time stamp of the active node interfaces, each intermediate node inbound interface and outbound interface stamp stamp so that each piece of the destination node can be calculated transmission delay and jitter of the link IPv6 packet through the network, but also can be recorded into the intermediate nodes in accordance with the Interface timestamp timestamp and outbound interface, each intermediate node determining processing delay of IPv6 data packets.

3, the bidirectional IPv6 protocol performance tests embodiment, as shown in FIG.

FIG 6 is a schematic diagram process of the invention applied to a two-way performance test. In FIG. 6, for testing the performance of bidirectional IPv6 protocol request message may be realized and bidirectional test response message via the bidirectional test bidirectional test message. During performance testing of the bidirectional IPv6 protocol, the test node is bidirectional test request message to the source node.

The source node sends carries IPv6 test extension header of IPv6 packet, the IPv6 test extension header message type MH Type shall request message is a bidirectional test, the flag D is set to 0, indicating that the test message is only processed by the destination node the flag may be set to I 1, represents a source node, destination node interfaces into the recording time stamp flag can be set to 1 0, represent the source node and the destination node records a timestamp interfaces.

When the bidirectional transmission source node test request message, the interface should be a time stamp recording the timestamp option Interface IPv6 extension headers in the test IPv6 packet when the IPv6 packet via the IPv6 network to the destination node, the destination node only the timestamp option request message interfaces in the bidirectional test recording that receives data packets into IPv6 Interface timestamp. Then, the destination node to the source node returns a response message bidirectional test (here, the source node for the bidirectional test message request source node, while the node is the bidirectional test object response message), the test request message to the joy of timestamp option to copy a two-way test reply message time stamp option, and add a two-way interface to test the response message timestamps in a two-way interface to test the response message timestamp options. -

After a two-way test response message returned to the source node bidirectional test request message, the source node will only test the bidirectional interface to the response message timestamp recorded in the timestamp option in the interface. The interfaces stamp, the destination node the source node may send a request message according to the extended header bidirectional IPv6 test Test carried in the received request message into a bidirectional interface to a test stamp, the destination node transmits the bidirectional interface to test the response time stamp message, the source bidirectional test node receives the reply message timestamp into the interface, it is determined from the source node to the destination node, back to the source node of this round-trip transmission delay of the link from the destination node, and jitter.

In the bidirectional test request message, the response message is a bidirectional test intermediate node to process if the D flag is set, the IPv6 extension header into the test interfaces timestamp option, the timestamp option in the interface also carries the intermediate nodes recorded Han request message and the response to the test message test bidirectional outbound interface time stamp, the time stamp into the interface, based on these time stamp information calculated round-trip propagation delay between the different links of the intermediate nodes, and each intermediate node and the destination dithering IPv6 node processing delay time of the data packet.

Example 4, application layer protocol performance testing.

Test using IPv6 extension headers, not only can facilitate the performance test Test IP layer protocol, the test may also be transmission control protocol (TCP), User Datagram Protocol (the UDP), File Transfer Protocol (FTP), Dynamic Host Configuration Protocol (DHCP ), hypertext transfer protocol (HTTP) and the like based on an application layer of the IPv6 protocol performance.

The present invention can increase the IPv6 test extension header before the data packet application layer protocol, so that the data the application layer protocol packet becomes the data packets based on application layer protocol of IPv6, the data based on an application layer protocol of IPv6 packets in the transport network, can realize the application layer protocol performance test according to the test option IPv6 extension header in the test carried.

These are just a test using the extended header IPv6 network performance testing several specific scenario, by setting the test IPv6 extension headers in accordance with the actual demand network performance testing, the test IPv6 extension headers can be applied to various network performance test scenarios, in this is not described in detail.

Based on the above-described method of the present invention, the present invention also proposes a network performance testing devices. The apparatus comprising: a configuration module for configuration information of the test represents the test requirements for the construction and testing resolve IPv6 extension header, and the information is added to the test in the test IPv6 extension header extension header processing module for controlling the test process and to give the test results of test management module.

FIG apparatus 7 a schematic diagram illustrating a preferred embodiment of a structure of the present invention. As shown in FIG 7, the apparatus comprising: a configuration module, the processing module and the first extension test management module.

The configuration module is mainly used for generating the test information indicates the test output to the test requirement and the management module. When the module is arranged in operation, it tests the network performance is provided as the current glance ^ initiator tests, such as: unidirectional test source node, bidirectional test bidirectional test request source node messages and the like. Here, the configuration module may continue to save the generated information to the test information test, the test information may indicate: the current test type of test, the test current source node, destination node, and a test node, the intermediate node need to record test information, test the starting and ending time, and so testing needs.

Test management module is configured to receive the test module from the configuration information indicates the test requirements, carrying an output start command of the test information to the header extension processing module, at this time, where the test management module as the current network performance testing initiated by the test device square; the test management module is further configured to read from the header extension processing module representative of a variety of network performance testing information, analyze the information obtained test results represent the network performance, such as: the test information in accordance with the calculated delay, jitter, loss, disorder, etc. in this case, the test management module where the network performance test equipment test node as the current test. Here, in a test process, a test initiator and the test node may be the same network performance testing equipment, such as: a source node requests the message bidirectional test bidirectional test; the test initiator and a test node may also be a different network performance test equipment, such as: unidirectional test, the test initiator is the source node, destination node and test node.

Extension header processing module for receiving the start command from the test management module, according to the test start command information carried ¾ configured IPv6 extension header is used to indicate the test requirements and the test output test IPv6 extension header carries the IPv6 packet to the outside network device, this time, the extension header of the network performance processing module is located as the current test equipment test initiator; the extension header processing module for receiving IPv6 packets with extension headers the test IPv6 network from an external apparatus, parse the test IPv6 extension header, added information included in the test the test IPv6 extension header, in which case, the header extension processing network performance test equipment may test node or an intermediate node of the current test module is located; the header extension processing module is further configured to IPv6 extension header carries the output of the test data packet to the IPv6 network an external device, or extract the various test information test IPv6 extension header and output to the test management module. When the header extension processing module where network performance test equipment may test current when the intermediate node, such as: unidirectional intermediate node piecewise test, two-way test bidirectional testing request message the destination node, etc., the extension header output processing module carrying the test IPv6 extension header IPv6 data packet to the external network device; when possible the extension header processing module where the network performance of the test equipment to test the current test node, such as: unidirectional (one-way or piecewise) test the destination node, the bidirectional test bidirectional test request message the source node and the like, the processing module extracts the extension header information of the various test IPv6 extension header, and the test output to the test management module.

Typically, the above-described configuration module is configured to generate per-user test information indicating test requirements, therefore, the configuration module is further configured for receiving user information from the outside, the test information generated based on the configuration information.

Further, the test information indicates the test requirements for test management module may require a timing or periodically test procedure is initiated. At this time, the test management module is further required for the test information from the configuration module or the timing of the periodic output start command to the extension header processing module, a timing or periodically in order to start the testing process.

Although the present invention is depicted by way of example, those of ordinary skill in the art know that there are many modifications and variations of the present invention without departing from the spirit of the invention, the application file as claimed in claim of the present invention include such modifications and variations.

Claims

Claims
1, network performance testing method is applied to IPv6 in the network comprises a plurality of transit nodes, wherein the test IPv6 extension header is provided for carrying the test information in an IPv6 data packet; the method comprising:
When the IPv6 packet is transmitted between said plurality of transit nodes, each transit node of each test were added to the test information in an IPv6 extension header of the IPv6 packet transmitted in and received the data packet according to IPv6 transmitting the test information of each node in an IPv6 extension header of the test to determine the current network performance.
2. The method according to claim 1, wherein the IPv6 extension header included in the test: a next header extension type, header extension length field for carrying the test message and the test information set according to the test requirements.
3. The method according to claim 2, wherein the test information comprises: a message sequence number; the test message field comprising: a message sequence number field carrying a message sequence number; the transmitted IPv6 packet Add this IPv6 packet transmitted packets originating transmitting node message sequence number field in the IPv6 packet extension headers in an IPv6 test message sequence number; '
Determining the current network performance testing comprising the transmission information of each node in the IPv6 header extension test: the transmitting node obtains in each of the respective data it has received IPv6 packet extension headers in an IPv6 test message carried by sequence number field message sequence number, and determines the IPv6 packet loss if the transmission link and / or scrambled according to the continuity of the sequence number of each message.
4. The method of claim 2, wherein said test message field comprising: a first control command flag bearer information message and a data field for carrying the test information, the first control command transfer element information indicating the need to process the message data field representing the transmission node ,, J was added in the test information includes test IPv6 extension header: the first flag bearer control command information required to process the indicated each node transmitting the message data field is added to each test information to the message data field;
Determining the current test information comprising the network performance test IPv6 extension header: the need to handle data field of the message transmitting node determines link IPv6 packet transmission link test message according to the information carried in the data field evaluation parameters.
5. The method as claimed in claim 4, wherein said test message field comprising: a second control command for carrying the flag information, the second control command information for indicating the test information to be recorded.
6. The method as claimed in claim 5, wherein the message data field comprises: at least one option for carrying test test information.
7. The method of claim 6, wherein the message data field further comprises: means for aligning the test a byte padding options options and / or at least two bytes of padding options.
8, only Gen The method according to claim 6, characterized in that said test comprises options: option type, length, and options options for carrying the test information data.
9. The method according to claim 8, which is characterized in that the option data comprising: transmitting node addresses the need to process the message data field and added to the test information.
10. The method as claimed in any one of claims 2-9, characterized in that the test message field further comprising: means for identifying the current IPv6 packet type message type field.
11. The method of claim 10, wherein said message type is: test message unidirectional, bidirectional test request message and response message bidirectional test in which any one of the three.
12. The method of claim 2 according to claim 9, characterized in that the test message field further comprising: a reserved field.
13. The method of claim any one of claims 4-9, characterized in that said first control command information indicating a node needs to transmit the message data processing field comprising: a destination node, or comprising: an intermediate node and a destination node.
14. The method of claim any one of claims 4-9, characterized in that the test information is a time stamp, the link evaluation parameter comprises: transmission delay and / or jitter.
15. The method according to any one of the 5-9 claims, wherein the test information is a time stamp, the test information to be recorded indicated by the second control command information includes: an interface into the timestamp and / or outbound interface time stamp.
16. The method according to claim 15, wherein said link comprises evaluation parameters: single transmission node processing the IPv6 packet delay, transmission delay between different transmission links and nodes of different transmission link these three jitter in any one or any combination of the three between nodes.
17. The method according to claims 1 to 5 claims, characterized in that, as the IPv6 packet: an IPv6 data packet at the IP layer or application layer protocol of the IPv6 data packet; the said network performance testing comprising: IP layer network performance testing, application layer protocol of the IPv6 network performance testing.
18. The method of claim 17, wherein said application layer protocol for IPv6: Transmission Control Protocol TCP, the UDP User Datagram Protocol, File Transfer Protocol FTP, Dynamic Host Configuration Protocol DHCP, Hypertext Transfer protocol HTTP.
19. A network performance testing device, characterized in that, the apparatus comprising:
Configuration module for generating a test information indicates the test requirements and output to the test management module;
Extension header processing module for receiving a start command from the test management module, according to the test start command information carried in the test configuration of IPv6 extension header carries the IPv6 data and outputs the test IPv6 extension header packets to the external network test equipment; from the external network device receives the IPv6 packet having the IPv6 extension headers test, test parsing the IPv6 extension header, added information representative of network performance testing in the test IPv6 extension header; test IPv6 extension header carries the output of IPv6 data packet to the external network test equipment, the test information, or extracts various test IPv6 extension header and output to the test management module;
Test management module, for receiving test information indicative of the test for the demand from the configuration module, an output start command of the test carried to the extension header information processing module, the test procedure; read from the header extension processing module on behalf of a variety of network performance test information, analyze test information obtained test results are representative of network performance.
20. The apparatus of claim 19, wherein the configuration module is further configured for receiving user information from outside, the means for indicating the test information test requirements according to the configuration information generation. '
21. The apparatus of claim 19 to claim 20, wherein said test management module is further used for timing according to the requirements of the test information from the configuration module or the speed of the periodic output start command to the extension header processing module, Timing test procedure is initiated or periodically.
PCT/CN2006/001154 2005-09-20 2006-05-30 A method for testing the network capability and the device thereof WO2007033542A1 (en)

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