CN104067559B - The method for testing performance of multicast channel, device and system - Google Patents
The method for testing performance of multicast channel, device and system Download PDFInfo
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- CN104067559B CN104067559B CN201280017336.8A CN201280017336A CN104067559B CN 104067559 B CN104067559 B CN 104067559B CN 201280017336 A CN201280017336 A CN 201280017336A CN 104067559 B CN104067559 B CN 104067559B
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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
Abstract
The present invention provides a kind of performance detecting system of multicast channel, including the first multicast equipment and the second multicast equipment, first multicast equipment, for constructing detection messages, detection messages carry the count value for the multicast message that the first multicast equipment is sent by the multicast channel to be detected of one in a plurality of multicast channel or carry the temporal information that the first multicast equipment sends detection messages；The destination address information of detection messages is identical with the destination address information for the multicast message that the multicast channel to be detected is transmitted；Detection messages are sent according to the destination address information of detection messages；Second multicast equipment, for receiving detection messages, the count value in the detection messages is extracted, the packet loss of multicast channel to be detected is calculated according to the count value of the multicast message from multicast channel reception to be detected；Or the temporal information in extraction detection messages, according to the time delay of the temporal information of the temporal information of extraction and local reception to detection messages calculating multicast channel to be detected.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of method for testing performance of multicast channel, device and system.
Background technology
The IPTV service on network is using the multicasting technology of point-to-multipoint at present, and multi-cast system is by video multicasting
System, IP（Internet Protocol, Internet Protocol）Metropolitan Area Network (MAN), access network and the part of home network four composition.
Video multicasting system realize video user management, CA (Certificate Authority, the credible 3rd
Side)/DRM（Digital Rights Management, Digital Right Management）, Video coding function, video traffic is sent
To IP Metropolitan Area Network (MAN)s；
Video traffic is streamed to broadband access network by IP Metropolitan Area Network (MAN)s by IP multicast functionalitys；
Broadband access network realizes the control function that video group is added or left, and the video flowing that user is needed（Multicast report
Text）It is sent to user.
Multicast message forwarding can have two layers of forwarding and three layers of forwarding.Two layers of forwarding are the VLAN in multicast message
（Virtual Local Access Network, VLAN）ID and purpose MAC（Media Access Control,
Media access control）Forward table corresponding to address search, the port in forward table are forwarded.Three layers of forwarding are according to group
Forward table corresponding to reporting VLAN ID and the purpose IP lookups in text, is forwarded according to corresponding port in forward table.
The factors such as packet loss, shake in multicast path are very crucial to the Consumer's Experience of video traffic, how to network
Video transmission quality is monitored and failure is positioned, and is the problem of operator pays special attention to.
The content of the invention
One embodiment of the invention provides a kind of performance detecting system of multicast channel, including the first multicast equipment and second
Multicast equipment, there are a plurality of multicast channel, institute on the multicast path between first multicast equipment and second multicast equipment
State the multicast message that a plurality of multicast channel is used to transmit different destination address information；
First multicast equipment, for constructing detection messages, the detection messages carry first multicast equipment and led to
The count value for the message that cross in a plurality of multicast channel one article multicast channel to be detected is sent or carry described the
One multicast equipment sends the temporal information of the detection messages；The destination address information of the detection messages with it is described to be detected
The destination address information for the multicast message that multicast channel is transmitted is identical；Sent according to the destination address information of the detection messages
The detection messages；
Second multicast equipment, for receiving the detection messages, when carrying count value in the detection messages
The count value in the detection messages is extracted, is received according to the count value of the extraction and from the multicast channel to be detected
The count value of message calculate the packet loss of the multicast channel to be detected；Or carry having time in the detection messages
The temporal information in the detection messages is extracted during information, is reported according to the temporal information of extraction and local reception to the detection
The temporal information of text calculates the time delay of the multicast channel to be detected.
Wherein, the destination address information can be Internet protocol IP address and VLAN ID VLAN ID
Combination or the combination for MAC address and VLAN ID.
Further, the detection messages are Operations, Administration and Maintenance OAM message, and first multicast equipment is additionally operable to
The OAM message is packaged using UDP UDP.
Further, the detection messages also carry private subscribers Datagram Protocol UDP port information, described second group
Broadcast the mark that equipment is additionally operable to whether carry special the udp port information or agreement of setting in the message that detection receives
Symbol, if so, the message for then judging to receive is detection messages.
One embodiment of the invention provides a kind of method for testing performance of multicast channel, the first multicast equipment and the second multicast
There is a plurality of multicast channel on multicast path between equipment, a plurality of multicast channel is used to transmit different destination address information
Multicast message, methods described include：
First multicast equipment constructs detection messages, and the detection messages carrying first multicast equipment passes through described
The count value for the message that a multicast channel to be detected in a plurality of multicast channel is sent, the destination address of the detection messages
Information is identical with the destination address information for the multicast message that the multicast channel to be detected is transmitted；
First multicast equipment sends the detection messages according to the destination address information, to cause described second group
Broadcast equipment and receive the detection messages, extract the count value in the detection messages, according to the count value of the extraction and from
The count value for the message that the multicast channel to be detected receives calculates the packet loss of the multicast channel to be detected；
Or
First multicast equipment constructs detection messages, and the detection messages carry first multicast equipment and send institute
The temporal information of detection messages is stated, what the destination address information of the detection messages was transmitted with the multicast channel to be detected
The destination address information of multicast message is identical；
First multicast equipment sends the detection messages according to the destination address information, to cause described second group
Broadcast equipment and receive the detection messages, extract the temporal information in the detection messages, according to the temporal information of extraction and originally
Ground receives the time delay of the temporal information calculating multicast channel to be detected of the detection messages.
Wherein, the destination address information be Internet protocol IP address and VLAN ID VLAN ID combination,
Or the combination for MAC address and VLAN ID.
Further, the detection messages also carry private subscribers Datagram Protocol UDP port information, the UDP ends
Message is ceased for being identified to the detection messages.
One embodiment of the invention provides a kind of multicast equipment, including：
Multicast path interface, for connecting the second multicast equipment, the multicast path interface and second multicast equipment
Between multicast path on have an a plurality of multicast channel, a plurality of multicast channel is used for the multicast for transmitting different destination address information
Message；
Processor, for constructing detection messages, the detection messages carry current multicast equipment and pass through a plurality of multicast
The count value for the message that one in passage multicast channel to be detected is sent or carry the current multicast equipment and send
The temporal information of the detection messages；The destination address information of the detection messages is transmitted with the multicast channel to be detected
Multicast message destination address information it is identical；
Data transmitter, for sending the detection messages according to the destination address information.
Further, the detection messages are Operations, Administration and Maintenance OAM message, and the processor is additionally operable to will be described
OAM message is packaged into UDP UDP messages.
Wherein, the multicast equipment is multicast server, Digital Subscriber Line Access Multiplexer DSLAM, optical line terminal
OLT, MSAN MSAN or router.
The multicast equipment that the present embodiment provides can detect to the performance of specific multicast channel, by using this reality
The multicast equipment of example offer is provided, quickly the failure of specific multicast channel can be positioned.
Brief description of the drawings
In order to illustrate more clearly of embodiments of the invention or technical scheme of the prior art, description will be implemented below
Used accompanying drawing is briefly described during example.It should be evident that the part of the only present invention described in accompanying drawings below
Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these
Figure and description obtain other accompanying drawings or embodiment, and it is contemplated that covering all these derivative accompanying drawings or embodiment.
Fig. 1 is the structure simplification figure of the performance detecting system of multicast channel provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the method for testing performance for the multicast channel that the embodiment of the present invention one provides；
Fig. 3 is the schematic diagram of the transmission process for the detection messages that the embodiment of the present invention one provides；
Fig. 4 is the schematic diagram of the frame structure for the UDP messages that the embodiment of the present invention one provides；
Fig. 5 is the flow chart of the method for testing performance for the multicast channel that the embodiment of the present invention two provides；
Fig. 6 is a kind of schematic diagram of the structure for the multicast equipment that the embodiment of the present invention three provides；
Fig. 7 is a kind of schematic diagram of the structure for the multicast equipment that the embodiment of the present invention three provides.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, institute
The embodiment of description is only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair
The scope of bright protection.
Fig. 1 is the schematic diagram of system architecture provided in an embodiment of the present invention, and as an example, the system in Fig. 1 includes route
Equipment 10, routing device 20, access device 30 and other equipment composition.The embodiment of the present invention is not to routing device 10, route
Equipment 20 and the specific multicast equipment form of the present position of access device 30 limit.
At least two multicast channels, each multicast are provided with multicast path between routing device 10 and routing device 20
Passage is used for the multicast message for transmitting different destination addresses.Multicast path can be physical channel, and multicast channel can be with multicast path
Logical channel on footpath.If double layer network, multicast channel transmission multicast message destination address can be MAC Address and
VLAN ID combination；If three-layer network, the destination address of the multicast message of multicast channel transmission can be IP and VLAN
ID combination.
Multicast equipment, such as routing device 20 or access device 30 can replicate to multicast message, pass through difference
Multicast channel toward down direction send.
, it is necessary to be detected to the performance of each multicast channel between multicast equipment and multicast equipment in Fig. 1, such as
It is every between each multicast channel or routing device 20 and access device 30 between routing device 10 and routing device 20
One multicast channel etc., to obtain the performance parameters such as the packet loss of corresponding multicast channel, time delay, shake.
Existing detection mode can only add RTP in the multicast message to be sent by multicast data flow source（Real-Time
Transport Protocol, RTP）Encapsulate carry multicast message transmit Sequence Number or timestamp value, it is middle
Equipment replicates to multicast message, multicast message is forwarded according to multicast forward table, such existing way can only detect
Multicast data flow source is to the performance parameter such as the packet loss of each copy-point or time delay, it is impossible to detects intermediate duplication point to copy-point
Performance parameter.
Embodiment one
To solve the above problems, the present embodiment provides a kind of method for testing performance of multicast channel, the performance inspection provided
Survey method can detect to the packet loss of the multicast channel between the first multicast equipment and the second multicast equipment.There is provided
Method is as shown in Fig. 2 may include steps of：
Step 200, the first multicast equipment construction detection messages, detection messages carry the first multicast equipment and pass through at least two
The count value for the message that a multicast channel to be detected in multicast channel is sent.
There are at least two multicast channels, every multicast on multicast path between first multicast equipment and the second multicast equipment
Passage is used for the multicast message for transmitting different destination addresses, if the multicast between the first multicast equipment and the second multicast equipment
Message can utilize double layer network to forward, then the destination address of the multicast message of every multicast channel transmission can use MAC and
VLAN ID combination identifies, if the multicast message between the first multicast equipment and the second multicast equipment needs three-layer network
Forward, then the destination address of the multicast message of every multicast channel transmission can be identified with IP and VLAN ID combination.
The multicast that the destination address information of the detection messages of first multicast equipment construction is transmitted with multicast channel to be detected
The destination address information of message is identical, so as to reach the purpose detected to specified multicast channel.
Referring to Fig. 1, by routing device 10 of the first multicast equipment, the second multicast equipment be that routing device 20 is illustrated.Route
There are 3 multicast channels between equipment 10 and routing device 20, if necessary to be detected to the packet loss of the 2nd article of multicast channel,
Then the destination address information for the detection messages that routing device 10 constructs needs the mesh with the multicast message of the 2nd article of multicast channel transmission
Address information it is identical.
First multicast equipment can carry count value in the payload of detection messages.As an example, the detection report of construction
Text can be management message or other non-multicast protocol messages, and management message can be OAM（Operation,
Administration and Maintenance, Operations, Administration and Maintenance）Message or OMCI（Optical Network
Terminal Management and Control Interface, Optical Network Termination Management and Control Interface）Deng or
Other customized management messages etc., count value can be carried in the payload of management message.
Detection messages can also be used UDP by the first multicast equipment（User Datagram Protocol, user data package
Agreement）Detection messages are packaged, the payload of the UDP after encapsulation is the payload of detection messages, using detection messages as OAM message
As an example, the UDP messages after encapsulation can be with as shown in figure 4, including ether net head, IP heads, UDP heads and payload.Ethernet
Head includes target MAC (Media Access Control) address（DMAC）, source MAC（SMAC）, VLAN ID（VLAN tag）And Ethernet class
Type（Ethtype）Deng.IP heads include source IP and purpose IP etc..UDP heads include source port（Source Port）, destination interface（Purpose
Port）And UDP etc..The payload of UDP messages after encapsulation can be the payload of OAM message.
In order to allow receiving terminal to identify detection messages, special UDP port number can be added in detection messages, so
Common multicast data flow can be different from, udp port of the receiving terminal in detection messages identifies it is detection messages, certainly,
The identifier of agreement can be added in payload, receiving terminal can also identify detection according to the identifier in detection messages payload
Message.
First multicast equipment is provided with inspection on multicast path according to the destination address information forward detection report of detection messages
The equipment of measuring point can receive the detection messages.
The transmission process of detection messages specifically may refer to Fig. 3, and routing device 10 sends multicast by the 2nd article of multicast channel
Message, OAM message is sent by the 2nd article of multicast channel according to the cycle of setting, is carried in the payload of OAM message and sends OAM reports
The count value of transmitted multicast message when literary, in Fig. 3, OAM message 1 carries Tx1, and OAM message 2 carries Tx2, and Tx1 is represented
The quantity forwarded of the multicast message counted during OAM message 1 is sent, Tx2 represents to send the multicast report counted during OAM message 2
The quantity forwarded of text.
Step 220, the second multicast equipment receive detection messages, extract the count value in detection messages, according to be detected
The count value of message that receives of multicast channel calculate the packet loss of multicast channel to be detected.
If being provided with test point on the second multicast equipment, the second multicast equipment can receive detection messages, extraction detection
Count value in message, multicast channel to be detected is calculated according to the count value of the message from multicast channel reception to be detected
Packet loss.
Specific process receives OAM message 1 referring to Fig. 3, routing device 20, identifies it is extraction OAM reports after detection messages
Tx1 in text 1, the count value that routing device 20 receives the multicast message received during OAM message 1 is Rx1.Receive OAM reports
After text 2, the Tx2 in OAM message 2 is extracted, the count value that routing device 20 receives the multicast message received during OAM message 2 is
Rx2。
Routing device 20 is according to formula：Packet loss=(Rx2-Rx1)-(Tx2-Tx1) calculates the number of dropped packets of the 2nd article of multicast channel
Amount, so as to calculate the packet loss of the 2nd article of multicast channel.
The process of specific recognition detection message can be UDP port number of the routing device 20 in detection messages to sentence
It is disconnected, if the special UDP port number of setting, then be detection messages；Can also be the payload in detection messages to judge,
For example whether the position set inserted with numeral etc., or according to identification information for whether having setting in payload etc..
Second multicast equipment can be with according to whether receive detection messages to lead to multicast to be detected in the time of setting
The connectedness in road is detected, for example the second multicast equipment does not receive detection messages within 3.5 cycles, then it is assumed that to be detected
Multicast channel there occurs failure.
The method for testing performance for the multicast channel that the present embodiment provides, is adapted to double layer network and three-layer network, can
To detect the packet loss of any section on multicast path and connectedness, because the destination address of detection messages and multicast channel is believed
Breath is consistent, so as to be detected to the performance of specific multicast channel.
Embodiment two
The present embodiment provides a kind of method for testing performance of multicast channel, and the method for testing performance provided can be to first
The performance such as the time delay of the multicast channel between multicast equipment and the second multicast equipment or shake is detected, as shown in figure 5, being carried
The method of confession includes step：
Step 500, the first multicast equipment construction detection messages, detection messages carry the first multicast equipment and send detection messages
Temporal information, detection messages are sent according to the destination address information of detection messages.
There is the multicast channel of at least two logics on multicast path between first multicast equipment and the second multicast equipment, often
Bar multicast channel is used for the multicast message for transmitting different destination addresses, if between the first multicast equipment and the second multicast equipment
Multicast data flow can utilize double layer network to forward, then the destination address for the multicast message that every multicast channel is transmitted can use MAC
Combination with VLAN ID identifies, if the multicast data flow between the first multicast equipment and the second multicast equipment needs three-layer network
Forwarding, then the destination address for the multicast message that every multicast channel is transmitted can be identified with IP and VLAN ID combination.
The group that the destination address information of the detection messages of first multicast equipment construction is transmitted with multicast channel to be detected
It is identical to report the destination address information of text, so as to reach the purpose detected to specified multicast channel.
First multicast equipment can carry temporal information in the payload of detection messages, as an example, the detection of construction
Message can be management message or other non-multicast protocol messages, management message can be OAM message, OMCI messages or its
He manages message etc., and temporal information can be carried in the payload of management message.
Detection messages can also be packaged by the first multicast equipment using UDP to detection messages, and the UDP's after encapsulation is net
Lotus be detection messages payload, using detection messages as OAM message as an example, the UDP messages after encapsulation can be as shown in Figure 4.
In order to allow receiving terminal to identify detection messages, special UDP port number can be added in detection messages, so
Common multicast message can be different from, udp port of the receiving terminal in detection messages identifies it is detection messages；Can also
The identifier of agreement is added in the payload of detection messages, receiving terminal identifies it is detection messages according to the identifier of the agreement.
First multicast equipment is provided with inspection on multicast path according to the destination address information forward detection report of detection messages
The equipment of measuring point can receive the detection messages.
Step 510, the second multicast equipment receives detection messages, is calculated according to the temporal information of local reception to detection messages
The time delay of multicast channel to be detected or shake.
If being provided with test point on the second multicast equipment, the second multicast equipment can receive detection messages, extraction detection
Temporal information in message, the delay or shake of multicast channel to be detected are calculated according to local time information.
Second multicast equipment needs to identify detection messages, can judge whether the UDP port number in message is due up
Special UDP port number, if it is, being detection messages；Second multicast equipment can also judge whether have in the payload of message
The identifier of agreement, if so, it is detection messages then to judge.
Temporal information in second multicast equipment extraction detection messages, if it is TxTimeStamp, the second multicast equipment enters
One step obtains local reception to the temporal information of detection messages, if it is RxTimeStamp.
Then the second multicast equipment is according to formula：
Time delay=RxTimeStamp-TxTimeStamp calculates the time delay of multicast channel to be detected.
The method for testing performance for the multicast channel that the present embodiment provides, is adapted to double layer network and three-layer network, can
To detect the time delay of any section on multicast path and shake, due to detection messages and the destination address information one of multicast channel
Cause, so as to be detected to the performance of specific multicast channel.
Embodiment three
Accordingly, the present embodiment also provides a kind of multicast equipment, as shown in fig. 6, multicast equipment 60（Can be, but it is unlimited
Routing device 10, routing device 20 or access device 30 in Fig. 1 etc.）Including：
Multicast path interface 66, for connecting the second multicast equipment, multicast path interface 66 can be that three moulds are adaptive
Interface, three moulds include GPON（Gigabit-capable Passive Optical Network, Gigabit Passive Optical net
Network）, EPON (Ethernet Passive Optical Network, Ethernet passive optical network) and GE（Gigabit
Ethernet, gigabit Ethernet）.
There are at least two multicast channels on the multicast path of the multicast equipment of multicast path interface 66 and second, this at least two
Multicast channel can be the logical channel on multicast path, for example be multicast channel 1 respectively, and multicast channel 2 ... ..., multicast leads to
Road n, every multicast channel are used for the multicast message for transmitting different destination addresses.If the specifically, He of current multicast equipment 60
Second multicast equipment forms double layer network, then the destination address for the multicast message that multicast channel is transmitted can be MAC and VLAN
ID combination is identified, if current multicast equipment 60 and second multicast equipment forms three-layer network, multicast channel is transmitted
The destination address of multicast message can be identified with IP and VLAN ID combination.
If necessary to be detected to the performance of wherein one multicast channel, then the multicast channel is that multicast to be detected leads to
Road.
Processor 62, for constructing detection messages, the detection messages that are constructed carry current multicast equipment pass through it is to be detected
Multicast channel send message count value or carry send detection messages temporal information.In order to specific group
The performance for broadcasting passage is detected, and the destination address information of the detection messages of construction needs to be transmitted with multicast channel to be detected
Multicast message destination address information it is identical.
The detection messages that processor 62 constructs can be management message or other non-multicast protocol messages, and management message can
To be OAM message or OMCI messages or other management messages etc., certainly, the present embodiment does not limit the tool of detection messages
Body agreement.Count value or temporal information can be carried in the payload of detection messages.
In another embodiment, processor 62 can be packaged using udp protocol to detection messages, after encapsulation
The payload of UDP messages can be the payload of detection messages.
In order that obtaining the easy recognition detection message of receiving terminal, processor 62 can also carry special UDP in UDP messages
Port numbers, the special UDP port number can be different from the UDP port number for the multicast data flow that multicast channel to be detected is transmitted,
Receiving terminal can be according to this port numbers come recognition detection message.Of course, processor 62 can also set one in payload
The identifier of agreement, this identifier of receiving terminal in payload is come recognition detection message.
Data transmitter 64, detection messages are connect from the multicast path for the destination address information according to detection messages
Mouth is sent.
The multicast equipment 60 that the present embodiment provides can also include memory 68, power supply, power interface etc..
Wherein, memory 68, for storing the count value or time letter of the message transmitted by multicast channel to be detected
Breath etc..
Power supply is used to provide power supply to multicast equipment 60, and power interface can give power source supplies AC or direct current.
The multicast equipment that the present embodiment provides is adapted to double layer network and three-layer network, can detect on multicast path
Any section packet loss and connectedness, because detection messages are consistent with the destination address information of multicast channel, so as to
The performance of specific multicast channel is detected, can be quickly to specific by the multicast equipment provided with the present embodiment
The failure of multicast channel positioned.
The present embodiment also provides a kind of multicast equipment, as shown in fig. 7, multicast equipment 70（It may be, but not limited to, in Fig. 1
Routing device 10, routing device 20 or access device 30 etc.）Including：
Data sink 72, for receiving message, message can be multicast message or detection messages etc..
Processor 74, for when the message for identifying that data sink 72 receives is detection messages, extracting detection messages
In count value, utilize the count value of the message received from corresponding multicast channel to calculate the packet loss of multicast channel to be detected
When rate, acquisition carry temporal information in detection messages, the temporal information in detection messages is extracted, utilizes local reception to inspection
The temporal information for observing and predicting text calculates time delay and the shake of multicast channel to be detected.
Specifically, processor 74 can include framing module 741 and CPU（Central Processing Unit, center
Processor）743：
Framing module 741, for the message of reception to be identified, when it is detection messages to identify outgoing packet, extraction inspection
Observe and predict the count value in text or extract temporal information in detection messages.
Framing module 741 can also extract the destination address information of detection messages, and being identified according to destination address information is
Which bar multicast channel.
The process of specific recognition detection message can be known by identification information of the framing module 741 in detection messages
It is not detection messages or common multicast message, can is specifically to judge whether the UDP port number in message is the special of setting
With UDP port number, or judge identifier for whether being had an agreement in the payload of message etc..
Framing module 741 can be according to the destination address information of detection messages, and identification is sent from which bar multicast channel
, can be specifically with obtaining corresponding group of destination address information in the corresponding relation that multicast channel identifies from destination address information
Broadcast passage, the identification information of the multicast channel in the present embodiment can be the label of multicast channel, as ID, channel number or other
Information of multicast channel etc. can be identified.
Framing module 741 is additionally operable to count the message that each multicast channel receives, and count value is stored in into storage
In device 76.
CPU743, for the count value in detection messages, and the meter of message that multicast channel to be detected receives
The packet loss of numerical computations multicast channel to be detected or the temporal information in detection messages, and to be detected
The time that multicast channel receives detection messages calculates time delay and the shake of multicast channel to be detected, before specific calculating process
Face embodiment has been described above, and no longer illustrates herein.
CPU743 is additionally operable to not receive detection messages within the time of setting, judges that multicast channel to be detected has event
Barrier etc..
Multicast equipment 70 can also include data transmitter 78 etc., and data transmitter 78 is used to receive data sink 72
Message forwarded.
As an example, the multicast equipment that the present embodiment provides can be DSLAM（Digital Subscriber Line
Access Multiplexer, Digital Subscriber Line Access Multiplexer）、OLT（Optical Line Terminal, optical link are whole
End）、MSAN（Multiservice Access Node, MSAN）Or router etc..
The multicast equipment that the present embodiment provides can detect to the performance of specific multicast channel, by using this reality
The multicast equipment of example offer is provided, quickly the failure of specific multicast channel can be positioned.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To instruct the hardware of correlation to complete by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：Flash disk, read-only storage（Read-Only Memory, ROM）, random access device（Random Access
Memory, RAM）, disk or CD etc..
Data processing method, equipment and the system provided above the embodiment of the present invention is described in detail, herein
In apply specific case the principle and embodiment of the present invention be set forth, for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in specific embodiments and applications, in summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (11)
1. a kind of performance detecting system of multicast channel, including the first multicast equipment and the second multicast equipment, it is characterised in that institute
Stating has at least two multicast channels on the multicast path between the first multicast equipment and second multicast equipment, and described at least two
Bar passage is used for transport multicast message, and the destination address for the multicast message that every multicast channel is transmitted is different；
First multicast equipment, for constructing detection messages, the detection messages carry first multicast equipment and pass through institute
The count value for the multicast message that a multicast channel to be detected at least two multicast channels is sent is stated, or is carried
State the temporal information that the first multicast equipment sends the detection messages；The destination address information of the detection messages with it is described to be checked
The destination address information for the multicast message that the multicast channel of survey is transmitted is identical；According to the destination address information of the detection messages
Send the detection messages；First multicast equipment is additionally operable to enter the detection messages using UDP UDP
Row encapsulation；
Second multicast equipment, for receiving the detection messages, extracted when carrying count value in the detection messages
Count value in the detection messages, according to the count value of the extraction and the group received from the multicast channel to be detected
The count value for reporting text calculates the packet loss of the multicast channel to be detected；Or carry having time in the detection messages
The temporal information in the detection messages is extracted during information, is reported according to the temporal information of extraction and local reception to the detection
The temporal information of text calculates the time delay of the multicast channel to be detected.
2. system according to claim 1, it is characterised in that the destination address information be Internet protocol IP address and
VLAN ID VLAN ID combination, or the combination for MAC address and VLAN ID.
3. system according to claim 1, it is characterised in that the detection messages are reported for Operations, Administration and Maintenance OAM
Text, first multicast equipment are additionally operable to be packaged the OAM message using UDP UDP.
4. according to the system described in claim 1-3 any one, it is characterised in that the detection messages also carry special use
Whether user data datagram protocol udp port information, second multicast equipment are additionally operable to carry in the message that detection receives and set
The identifier of fixed special udp port information or agreement, if so, the message for then judging to receive is detection messages.
5. according to the system described in claim 1-3 any one, it is characterised in that first multicast equipment is router
Or access device.
6. a kind of method for testing performance of multicast channel, it is characterised in that between the first multicast equipment and the second multicast equipment
There are at least two multicast channels on multicast path, at least two multicast channels are used for transport multicast message, and every multicast leads to
The destination address information for the multicast message that road is transmitted is different, and methods described includes：
First multicast equipment constructs detection messages, the detection messages carry first multicast equipment by it is described at least
The count value for the multicast message that a multicast channel to be detected in two multicast channels is sent, the purpose of the detection messages
Address information is identical with the destination address information for the multicast message that the multicast channel to be detected is transmitted；First multicast
Equipment is additionally operable to be packaged the detection messages using UDP UDP；
First multicast equipment sends the detection messages according to the destination address information, to cause second multicast to set
It is standby to receive the detection messages, the count value in the detection messages is extracted, according to the count value of the extraction and from described
The count value for the multicast message that multicast channel to be detected receives calculates the packet loss of the multicast channel to be detected；
Or
First multicast equipment constructs detection messages, and the detection messages carry first multicast equipment and send the inspection
Observe and predict the temporal information of text, the multicast that the destination address information of the detection messages is transmitted with the multicast channel to be detected
The destination address information of message is identical；First multicast equipment is additionally operable to using UDP UDP to the detection
Message is packaged；
First multicast equipment sends the detection messages according to the destination address information, to cause second multicast to set
It is standby to receive the detection messages, the temporal information in the detection messages is extracted, is connect according to the temporal information of extraction and local
The temporal information for receiving the detection messages calculates the time delay of the multicast channel to be detected.
7. according to the method for claim 6, it is characterised in that the destination address information be Internet protocol IP address and
VLAN ID VLAN ID combination, or the combination for MAC address and VLAN ID.
8. according to the method for claim 6, it is characterised in that the detection messages also carry private subscribers datagram association
Udp port information is discussed, the special udp port information is used to be identified the detection messages.
A kind of 9. multicast equipment, it is characterised in that including：
Multicast path interface, for connecting the second multicast equipment, between the multicast path interface and second multicast equipment
Multicast path on have at least two multicast channels, at least two multicast channels are used for transport multicast message, every multicast
The destination address information of the multicast message of channel transfer is different；
Processor, for constructing detection messages, the detection messages carry current multicast equipment and pass through at least two multicasts
The count value for the multicast message that a multicast channel to be detected in passage is sent, or carry the current multicast equipment
Send the temporal information of the detection messages；The destination address information of the detection messages and the multicast channel institute to be detected
The destination address information of the multicast message of transmission is identical；It is additionally operable to enter the detection messages using UDP UDP
Row encapsulation；
Data transmitter, for sending the detection messages according to the destination address information.
10. multicast equipment according to claim 9, it is characterised in that the detection messages are Operations, Administration and Maintenance
OAM message, the processor are additionally operable to the OAM message being packaged into UDP UDP messages.
11. multicast equipment according to claim 9, it is characterised in that the multicast equipment is that Digital Subscriber Line access is multiple
With device DSLAM, optical line terminal OLT, MSAN MSAN or router.
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| PCT/CN2012/088047 WO2014101185A1 (en) | 2012-12-31 | 2012-12-31 | Method, apparatus and system for detecting performance of multicast channel |
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| CN105991370B (en) * | 2015-03-27 | 2020-01-03 | 杭州迪普科技股份有限公司 | UDP channel detection method and device |
| CN106559283A (en) * | 2015-09-30 | 2017-04-05 | 华为技术有限公司 | A kind of network monitoring method, apparatus and system |
| CN107231266A (en) * | 2016-03-24 | 2017-10-03 | 中兴通讯股份有限公司 | The detection method and device of message passage |
| CN112637708A (en) * | 2019-09-24 | 2021-04-09 | 中兴通讯股份有限公司 | Method and board card for monitoring multicast service |
| CN112688827B (en) * | 2019-10-18 | 2023-03-31 | 华为技术有限公司 | Multicast stream detection method, device and system |
| JP2023530994A (en) * | 2021-05-28 | 2023-07-20 | 新華三技術有限公司 | IN-SITU FLOW DETECTION METHOD AND ELECTRONIC DEVICE |
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| CN1968163A (en) * | 2006-10-25 | 2007-05-23 | 华为技术有限公司 | Method for service channel detection and system for providing the same |
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