CN106713063B - The method of voip network packet loss fault detection - Google Patents
The method of voip network packet loss fault detection Download PDFInfo
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- CN106713063B CN106713063B CN201510794610.8A CN201510794610A CN106713063B CN 106713063 B CN106713063 B CN 106713063B CN 201510794610 A CN201510794610 A CN 201510794610A CN 106713063 B CN106713063 B CN 106713063B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
- H04L43/0835—One way packet loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
- H04L43/0841—Round trip packet loss
Abstract
Present invention discloses a kind of methods of voip network packet loss fault detection, comprising steps of carrying out passive type monitoring and data capture to two-way RTP and the RTCP stream transmitted between VoIP end equipment A and end equipment B in some voip network intermediate point C by acquisition equipment；RTP packet loss statistics is carried out to two-way rtp streaming according to RTP sequence number, obtains the RTP number of dropped packets observed in the monitoring point C；Protocol analysis is carried out according to the RTCP measured message captured, and therefrom extracts relevant packet loss parameter field, obtains the end-to-end PTP packet drop that VoIP end equipment A and end equipment B is counted respectively；Analysis is associated to packet drop, obtain A to the direction B segmented network packet drop and B to the direction A segmented network packet drop.The method of voip network packet loss fault detection proposed by the present invention, it can precise positioning VoIP media stream service quality problems, two-way RTP/RTCP stream is monitored in the intermediate point of voip network, by calculating and association analysis RTP packet loss and RTCP packet loss, to judge Network Packet Loss position.
Description
Technical field
The invention belongs to technical field of network communication, are related to a kind of Network Fault Detection more particularly to a kind of voip network
The method of packet loss fault detection.
Background technique
With the fast development of IP network and application, the next generation network based on IP bearer network and Softswitch technology
(NGN) it has been widely regarded as realizing the trend of the times of unification of three nets, traditional pstn telephone network is just gradually by VoIP (i.e. net
Network phone, Voice over Internet Protocol) network substituted.Since VoIP voice is assisted using RTP real-time Transmission
View is transmitted in IP network, and Real-time Transport Protocol is based on towards connectionless UDP transport protocol, this results in the language of VoIP
Sound quality is highly susceptible to the influence of IP network packet loss and deteriorates.Therefore, for the maintenance personnel of voip network, fastly
Speed detects and orients voip network packet loss and its specific location is vital.
Due to the aggravation that telecommunications and broadcasting and TV compete in " triple play " field, operator increasingly payes attention to the industry of voip network
Business quality assurance, they very urgently need to actively discover VoIP quality of service problem and quickly positioning and isolated fault source
System and tool, so as to promoted user experience quality, reduce fault correction time.And on the other hand, operator must be stringent
The operation cost for controlling voip network, with alap at original deployment VoIP quality of service monitoring and fault diagnosis system.
The structure of the IP bearer network of operator is sufficiently complex at present, VoIP voice need by IP kernel central layer, convergence layer,
Access layer, the multistage network equipment of user side and link are transmitted, and these network equipments and link are likely to VoIP
The transmission of Media Stream causes to damage, and influences terminal user to the Quality of experience of VoIP business.
Generally, in order to carry out VoIP quality of service malfunction elimination, monitoring device can be disposed in network intermediate point and (visited
Needle) carry out the monitoring of VoIP Media Stream, the KPI index such as statistics network packet loss and shake.Using traditional VoIP method for diagnosing faults,
If Network Packet Loss is not detected in the monitoring point, it can determine whether that its upstream node is not introduced into packet loss, but still can not determine under it
Whether whether trip node have the voice quality of packet loss, terminal user good.In order to further check failure, then need monitoring point
Test is moved down step by step.Further, since there is different inter-sectional divisions of responsibility (such as VoIP net in telecommunication network maintenance system
Pass, IP kernel heart net, broadband access network are likely to be to be responsible for maintenance by different departments), this causes deployment VoIP probe
Various inartful obstacles.It will appear the different mutual responsibilities of O&M department inside telecom operators in many cases, to push away
The phenomenon that Venezuelan.Therefore, very there is an urgent need for a kind of tests that can be carried out quick voip network Fault Isolation for telecommunications maintenance department
Method and kit for.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of method of voip network packet loss fault detection is provided, it can be accurate
VoIP media stream service quality problems are positioned, two-way RTP/RTCP stream are monitored in the intermediate point of voip network, by calculating and closing
Connection analysis RTP packet loss and RTCP packet loss, to judge Network Packet Loss position.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of method of voip network packet loss fault detection, described method includes following steps:
Step 1: being passed in setting voip network intermediate point C between VoIP end equipment A and end equipment B by acquisition equipment
Defeated two-way RTP and RTCP measured message carries out passive type monitoring and data capture；
Step 2: carrying out RTP packet loss statistics to two-way rtp streaming according to RTP sequence number, obtain observing in the monitoring point C
RTP number of dropped packets, wherein the RTP number of dropped packets reflection that A to the direction B rtp streaming is counted be A to C Network Packet Loss situation, letter
Claim RTP_a-c；The RTP number of dropped packets reflection that B to the direction A rtp streaming is counted be B to C Network Packet Loss situation, referred to as
RTP_b-c；
Step 3: carrying out protocol analysis according to the RTCP measured message captured, and therefrom extract relevant packet loss ginseng
Digital section can obtain the end-to-end PTP packet drop that VoIP end equipment A and end equipment B are counted, wherein from end equipment respectively
It can extract the Network Packet Loss number of the B to A, abbreviation RTCP_b-a in the RTCP measured message that A is sent；It is sent from end equipment B
It can extract the Network Packet Loss number of A to B, abbreviation RTCP_a-b in RTCP measured message；
Step 4: being associated analysis to RTP_a-c and RTCP_a-b, it can be deduced that the segmented network packet loss of A to the direction B
Situation is as follows:
If RTP_a-c=0 and RTCP_a-b > 0, prompt: the network between VoIP end equipment A to monitoring point C is not present
Packet loss, and there are packet losses for the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b=RTP_a-c, prompt: the network between VoIP end equipment A to monitoring point C
There are packet losses, and packet loss is not present in the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b > RTP_a-c, prompt: the network between VoIP end equipment A to monitoring point C is deposited
In packet loss, and there is also packet losses for the network between C to the VoIP end equipment B of monitoring point.
Step 5: being associated analysis to RTP_b-c and RTCP_b-a, the segmented network packet drop of B to the direction A is obtained
It is as follows:
If RTP_b-c=0 and RTCP_b-a > 0, prompt: the network between VoIP end equipment B to monitoring point C is not present
Packet loss, and there are packet losses for the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a=RTP_b-c, prompt: the network between VoIP end equipment B to monitoring point C
There are packet losses, and packet loss is not present in the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a > RTP_b-c, prompt: the network between VoIP end equipment B to monitoring point C is deposited
In packet loss, and there is also packet losses for the network between C to the VoIP end equipment A of monitoring point.
A kind of method of voip network packet loss fault detection, described method includes following steps:
Step 1: being passed in setting voip network intermediate point C between VoIP end equipment A and end equipment B by acquisition equipment
Defeated two-way RTP and RTCP measured message carries out passive type monitoring and data capture；
Step 2: carrying out RTP packet loss statistics to two-way rtp streaming according to RTP sequence number, obtain observing in the monitoring point C
RTP number of dropped packets, wherein the RTP number of dropped packets reflection that A to the direction B rtp streaming is counted be A to C Network Packet Loss situation, letter
Claim RTP_a-c；The RTP number of dropped packets reflection that B to the direction A rtp streaming is counted be B to C Network Packet Loss situation, referred to as
RTP_b-c；
Step 3: carrying out protocol analysis according to the RTCP measured message captured, and therefrom extract relevant packet loss ginseng
Digital section can obtain the end-to-end PTP packet drop that VoIP end equipment A and end equipment B are counted, wherein from end equipment respectively
It can extract the Network Packet Loss number of the B to A, abbreviation RTCP_b-a in the RTCP measured message that A is sent；It is sent from end equipment B
It can extract the Network Packet Loss number of A to B, abbreviation RTCP_a-b in RTCP measured message；
Step 4: being associated analysis to RTP_a-c and RTCP_a-b, the segmented network packet loss feelings of A to the direction B are obtained
Condition；
Step 5: being associated analysis to RTP_b-c and RTCP_b-a, the segmented network packet loss feelings of B to the direction A are obtained
Condition.
As a preferred solution of the present invention, in the step 4, the segmented network packet drop of A to the direction B is as follows:
If RTP_a-c=0 and RTCP_a-b > 0, it is concluded that: the network between VoIP end equipment A to monitoring point C is not present
Packet loss, and there are packet losses for the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b=RTP_a-c, it is concluded that: the network between VoIP end equipment A to monitoring point C
There are packet losses, and packet loss is not present in the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b > RTP_a-c, it is concluded that: the network between VoIP end equipment A to monitoring point C is deposited
In packet loss, and there is also packet losses for the network between C to the VoIP end equipment B of monitoring point；
As a preferred solution of the present invention, in the step 5, RTP_b-c and RTCP_b-a are associated point
Analysis, the segmented network packet drop for obtaining B to the direction A are as follows:
If RTP_b-c=0 and RTCP_b-a > 0, it is concluded that: the network between VoIP end equipment B to monitoring point C is not present
Packet loss, and there are packet losses for the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a=RTP_b-c, it is concluded that: the network between VoIP end equipment B to monitoring point C
There are packet losses, and packet loss is not present in the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a > RTP_b-c, it is concluded that: the network between VoIP end equipment B to monitoring point C is deposited
In packet loss, and there is also packet losses for the network between C to the VoIP end equipment A of monitoring point.
The beneficial effects of the present invention are: the method for voip network packet loss fault detection proposed by the present invention can precisely determine
Position VoIP media stream service quality problems monitor two-way RTP/RTCP stream in the intermediate point of voip network, by calculating and being associated with
RTP packet loss and RTCP packet loss are analyzed, to judge Network Packet Loss position.
Detailed description of the invention
Fig. 1 is the format chart of RTP data packet head.
Fig. 2 is the flow chart of the method for voip network packet loss fault detection of the present invention.
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment one
Referring to Fig. 2, the method includes as follows present invention discloses a kind of method of voip network packet loss fault detection
Step:
[step 1] is passed in setting voip network intermediate point C between VoIP end equipment A and end equipment B by acquisition equipment
Defeated two-way RTP and RTCP measured message carries out passive type monitoring and data capture；
[step 2] carries out RTP packet loss statistics to two-way rtp streaming according to RTP sequence number, obtains observing in the monitoring point C
RTP number of dropped packets, wherein the RTP number of dropped packets reflection counted to the direction A to B (i.e. A- > B) rtp streaming is that the network of A to C is lost
Packet situation, abbreviation RTP_a-c；The RTP number of dropped packets reflection that B to the direction A rtp streaming is counted be B to C Network Packet Loss feelings
Condition, abbreviation RTP_b-c；
[step 3] carries out protocol analysis according to the RTCP measured message captured, and therefrom extracts relevant packet loss ginseng
Digital section can obtain the end-to-end PTP packet drop that VoIP end equipment A and end equipment B are counted, wherein from end equipment respectively
It can extract the Network Packet Loss number of the B to A, abbreviation RTCP_b-a in the RTCP measured message that A is sent；It is sent from end equipment B
It can extract the Network Packet Loss number of A to B, abbreviation RTCP_a-b in RTCP measured message；
[step 4] is associated analysis to RTP_a-c and RTCP_a-b, it can be deduced that the segmented network in A to the direction B is lost
Packet situation is as follows:
If RTP_a-c=0 and RTCP_a-b > 0, prompt: the network between VoIP end equipment A to monitoring point C is not present
Packet loss, and there are packet losses for the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b=RTP_a-c, prompt: the network between VoIP end equipment A to monitoring point C
There are packet losses, and packet loss is not present in the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b > RTP_a-c, prompt: the network between VoIP end equipment A to monitoring point C is deposited
In packet loss, and there is also packet losses for the network between C to the VoIP end equipment B of monitoring point.
[step 5] is associated analysis to RTP_b-c and RTCP_b-a, obtains the segmented network packet loss feelings of B to the direction A
Condition is as follows:
If RTP_b-c=0 and RTCP_b-a > 0, prompt: the network between VoIP end equipment B to monitoring point C is not present
Packet loss, and there are packet losses for the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a=RTP_b-c, prompt: the network between VoIP end equipment B to monitoring point C
There are packet losses, and packet loss is not present in the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a > RTP_b-c, prompt: the network between VoIP end equipment B to monitoring point C is deposited
In packet loss, and there is also packet losses for the network between C to the VoIP end equipment A of monitoring point.
Embodiment two
RTP (Realtime Transport Protocol) real-time transport protocol is for multimedia number on Internet
It according to a transport protocol of stream, is defined by IETF RFC1889 standard, its typical case (such as VoIP) is established in udp protocol
On.RTP is defined as working in one-to-one or one-to-many transmission, and the purpose is to provide temporal information and realize that stream is same
Step.RTP itself only guarantees the transmission of real time data, can not provide reliable transfer mechanism for transmission data packet in order,
Flow control or congestion control are not provided, it provides these services by RTCP.
RTCP (Realtime Transport Control Protocol) RTCP Real-time Transport Control Protocol is responsible for management transmission
Quality exchange of control information between current application process.In RTP ession for telecommunication, each participant periodically transmits RTCP packet,
Containing statistics such as quantity, the quantity of the data packet of loss of data packet sent in packet, therefore, server be can use
These information dynamically change transmission rate, or even change PT Payload Type.RTP and RTCP are used cooperatively, can be with effective
Feedback and the smallest expense optimize efficiency of transmission.
Next, the method that RTP layers of packet loss of analysis calculates.Fig. 1 is the format of RTP data packet head.In the packet header RTP of Fig. 1
In format, RTP sequence-number field is the field of 16 bit, it is with source/destination IP address and SSRC field to each
The rtp streaming of index carries out continuity counting, i.e., the continuous RTP packet for belonging to the same rtp streaming is stamped continuous sequence numbered tag
(such as: 0,1,2,3 ..., 65535,0,1,2 ...).It can be seen that RTP sequence-number field can be used for carrying out RTP packet loss, unrest
The calculating of sequence packet number.
The recipient of RTP message can use two kinds of RTCP report message (SR or RR) and connect to provide related data
The statistical information of quality is received, specifically selects whether SR (source report) message or RR (Receiver Report) message will see the recipient
It is the sender of a RTP message simultaneously.Specifically, if a session participation person sends RTCP message from last time
Afterwards, new RTP data message is had sent, then the participant needs to transmit SR message, otherwise transmits RR message.SR message and RR
The main distinction of message is that the former contains information of 20 bytes in relation to sender.
VoIP end equipment (such as voip gateway, telephone terminal) pass is contained in the SR message and RR message of rtcp protocol
In RTP packet loss static fields, comprising:
(1) lose percentage (fraction lost): 8 bits, it is indicated from after the transmission of a upper SR or RR message,
The RTP message number lost in DRP data reception process with the receivable RTP message total arrived percentage.
(2) packet loss accumulative total (cumulative number of packet lost): 24 bits, it has recorded
When the RTCP message is sent, the sum of lost RTP data message in receive process.
Point (the watershed position of such as different operators network) deployment passive type monitoring device is bis- to VoIP between in a network
Data capture is carried out to RTP/RTCP Media Stream, then calculates RTP/RTCP packet loss index, the association analysis for row index of going forward side by side can
The specific network site of effective position packet loss failure.
In the monitoring point C of operator A and the operation watershed B, test equipment is associated the base of RTP, RTCP packet loss analysis
Present principles are as follows:
(1) test equipment can monitor the RTP Media Stream (gateway A to netting B, gateway B to net A) of both direction, and can
Calculate the RTP number of dropped packets observed in the monitoring point C: wherein what the RTP number of dropped packets of A to the direction B reflected is the Network Packet Loss of A to C
Situation (abbreviation RTP_a-c)；What the RTP number of dropped packets in B to the direction A reflected is the Network Packet Loss situation (abbreviation RTP_b-c) of B to C.
(2) in addition, the RTCP measurement report that gateway A and gateway B that test equipment can also monitor are sent, and can be from gateway A
RTCP measured message in the end to end network number of dropped packets (abbreviation RTCP_b-a) of B to A that extracts, surveyed from the RTCP of gateway B
The end to end network number of dropped packets (abbreviation RTCP_a-b) of A to B is extracted in amount message.
(3) by association analysis RTP_a-c and RTCP_a-b index it can be concluded that the segmented network in gateway A to the direction B is lost
Packet situation: if RTP_a-c=0&RTCP_a-b > 0, illustrating operator A network, there is no packet losses, and Carrier B networks exist
Packet loss；If RTP_a-c > 0&RTCP_a-b=RTP_a-c, illustrating operator A network, there are packet losses, and Carrier B networks are not
There are packet losses；If RTP_a-c > 0&RTCP_a-b > RTP_a-c, illustrate operator A network there are packet loss, and Carrier B networks
There is also packet losses.
(4) by association analysis RTP_b-c and RTCP_b-a index it can be concluded that the segmented network in gateway B to the direction A is lost
Packet situation: if RTP_b-c=0&RTCP_b-a > 0, illustrating Carrier B networks, there is no packet losses, and operator A network exists
Packet loss；If RTP_b-c > 0&RTCP_b-a=RTP_b-c, illustrating Carrier B networks, there are packet losses, and operator A network is not
There are packet losses；If RTP_b-c > 0&RTCP_b-a > RTP_b-c, illustrate Carrier B networks there are packet loss, and operator A network
There is also packet losses.
In conclusion the method for voip network packet loss fault detection proposed by the present invention, it can precise positioning VoIP Media Stream
Quality of service problem monitors two-way RTP/RTCP stream in the intermediate point of voip network, by calculate and association analysis RTP packet loss and
RTCP packet loss, to judge Network Packet Loss position.
Description and application of the invention herein are illustrative, is not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, the realities for those skilled in the art
The replacement and equivalent various parts for applying example are well known.It should be appreciated by the person skilled in the art that not departing from the present invention
Spirit or essential characteristics in the case where, the present invention can in other forms, structure, arrangement, ratio, and with other components,
Material and component are realized.Without departing from the scope and spirit of the present invention, can to embodiments disclosed herein into
The other deformations of row and change.
Claims (4)
1. a kind of method of voip network packet loss fault detection, which is characterized in that described method includes following steps:
Step 1: by acquisition equipment in setting voip network intermediate point C to transmitting between VoIP end equipment A and end equipment B
Two-way RTP and RTCP measured message carries out passive type monitoring and data capture；
Step 2: carrying out RTP packet loss statistics to two-way rtp streaming according to RTP sequence number, obtain losing in the RTP that the monitoring point C is observed
Packet number, wherein the RTP number of dropped packets reflection that A to the direction B rtp streaming is counted be A to C Network Packet Loss situation, referred to as
RTP_a-c；The RTP number of dropped packets reflection that B to the direction A rtp streaming is counted be B to C Network Packet Loss situation, abbreviation RTP_
b-c；
Step 3: carrying out protocol analysis according to the RTCP measured message captured, and therefrom extract relevant packet loss parameter word
Section obtains the end-to-end PTP packet drop that VoIP end equipment A and end equipment B is counted respectively, wherein sending from end equipment A
RTCP measured message in the Network Packet Loss number of B to A that extracts, abbreviation RTCP_b-a；The RTCP measurement sent from end equipment B
The Network Packet Loss number of A to B, abbreviation RTCP_a-b are extracted in message；
Step 4: be associated analysis to RTP_a-c and RTCP_a-b, obtain A to the direction B segmented network packet drop such as
Under:
If RTP_a-c=0 and RTCP_a-b > 0, prompt: packet loss is not present in the network between VoIP end equipment A to monitoring point C,
And there are packet losses for the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b=RTP_a-c, prompt: the network between VoIP end equipment A to monitoring point C exists
Packet loss, and packet loss is not present in the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b > RTP_a-c, prompt: the network between VoIP end equipment A to monitoring point C, which exists, to be lost
Packet, and there is also packet losses for the network between C to the VoIP end equipment B of monitoring point；
Step 5: be associated analysis to RTP_b-c and RTCP_b-a, obtain B to the direction A segmented network packet drop such as
Under:
If RTP_b-c=0 and RTCP_b-a > 0, prompt: packet loss is not present in the network between VoIP end equipment B to monitoring point C,
And there are packet losses for the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a=RTP_b-c, prompt: the network between VoIP end equipment B to monitoring point C exists
Packet loss, and packet loss is not present in the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a > RTP_b-c, prompt: the network between VoIP end equipment B to monitoring point C, which exists, to be lost
Packet, and there is also packet losses for the network between C to the VoIP end equipment A of monitoring point.
2. a kind of method of voip network packet loss fault detection, which is characterized in that described method includes following steps:
Step 1: by acquisition equipment in setting voip network intermediate point C to transmitting between VoIP end equipment A and end equipment B
Two-way RTP and RTCP measured message carries out passive type monitoring and data capture；
Step 2: carrying out RTP packet loss statistics to two-way rtp streaming according to RTP sequence number, obtain losing in the RTP that the monitoring point C is observed
Packet number, wherein the RTP number of dropped packets reflection that A to the direction B rtp streaming is counted be A to C Network Packet Loss situation, referred to as
RTP_a-c；The RTP number of dropped packets reflection that B to the direction A rtp streaming is counted be B to C Network Packet Loss situation, abbreviation RTP_
b-c；
Step 3: carrying out protocol analysis according to the RTCP measured message captured, and therefrom extract relevant packet loss parameter word
Section obtains the end-to-end PTP packet drop that VoIP end equipment A and end equipment B is counted respectively, wherein sending from end equipment A
RTCP measured message in the Network Packet Loss number of B to A that extracts, abbreviation RTCP_b-a；The RTCP measurement sent from end equipment B
The Network Packet Loss number of A to B, abbreviation RTCP_a-b are extracted in message；
Step 4: being associated analysis to RTP_a-c and RTCP_a-b, the segmented network packet drop of A to the direction B is obtained；
Step 5: being associated analysis to RTP_b-c and RTCP_b-a, the segmented network packet drop of B to the direction A is obtained.
3. the method for voip network packet loss fault detection according to claim 2, it is characterised in that:
In the step 4, the segmented network packet drop of A to the direction B is as follows:
If RTP_a-c=0 and RTCP_a-b > 0, it is concluded that: packet loss is not present in network between VoIP end equipment A to monitoring point C,
And there are packet losses for the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b=RTP_a-c, it is concluded that: network between VoIP end equipment A to monitoring point C exists
Packet loss, and packet loss is not present in the network between C to the VoIP end equipment B of monitoring point；
If RTP_a-c > 0 and RTCP_a-b > RTP_a-c, it is concluded that: network between VoIP end equipment A to monitoring point C, which exists, to be lost
Packet, and there is also packet losses for the network between C to the VoIP end equipment B of monitoring point.
4. the method for voip network packet loss fault detection according to claim 2, it is characterised in that:
In the step 5, analysis is associated to RTP_b-c and RTCP_b-a, obtains the segmented network packet loss feelings of B to the direction A
Condition is as follows:
If RTP_b-c=0 and RTCP_b-a > 0, it is concluded that: packet loss is not present in network between VoIP end equipment B to monitoring point C,
And there are packet losses for the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a=RTP_b-c, it is concluded that: network between VoIP end equipment B to monitoring point C exists
Packet loss, and packet loss is not present in the network between C to the VoIP end equipment A of monitoring point；
If RTP_b-c > 0 and RTCP_b-a > RTP_b-c, it is concluded that: network between VoIP end equipment B to monitoring point C, which exists, to be lost
Packet, and there is also packet losses for the network between C to the VoIP end equipment A of monitoring point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510794610.8A CN106713063B (en) | 2015-11-18 | 2015-11-18 | The method of voip network packet loss fault detection |
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| CN201510794610.8A CN106713063B (en) | 2015-11-18 | 2015-11-18 | The method of voip network packet loss fault detection |
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| CN109672548B (en) * | 2017-10-17 | 2022-04-01 | 中国移动通信有限公司研究院 | Long term evolution voice VoLTE network fault detection method, device and server |
| CN109936526B (en) * | 2017-12-15 | 2021-09-28 | 中国移动通信集团山东有限公司 | Method and device for determining voice quality |
| CN108199916A (en) * | 2017-12-27 | 2018-06-22 | 中国移动通信集团山东有限公司 | A kind of VoLTE voice quality monitors method and system |
| TWI735942B (en) * | 2019-09-05 | 2021-08-11 | 中華電信股份有限公司 | System and method for predicting and preventing obstacles of network communication equipment based on machine learning |
| CN112688824B (en) * | 2019-10-17 | 2022-09-27 | 中国移动通信集团浙江有限公司 | RTP packet loss detection method, device, equipment and computer readable storage medium |
| CN110932934B (en) * | 2019-11-21 | 2021-07-13 | 中国联合网络通信集团有限公司 | Network packet loss detection method and device |
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