CN104023206B - Media Stream concentrates retransmission method and device - Google Patents
Media Stream concentrates retransmission method and device Download PDFInfo
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- CN104023206B CN104023206B CN201410245419.3A CN201410245419A CN104023206B CN 104023206 B CN104023206 B CN 104023206B CN 201410245419 A CN201410245419 A CN 201410245419A CN 104023206 B CN104023206 B CN 104023206B
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Abstract
The present invention provides a kind of Media Stream and concentrates retransmission method and device, and the method includes：When live request is received, query monitor client device accesses table, obtains first and accesses public network address, and query monitor headend equipment accesses table, obtains second and accesses public network address；According to the first private net address for accessing public network address and media stream server, inquiry forwarding media stream table, obtains the first Media Stream public network address, according to the second private net address for accessing public network address and media stream server, inquiry forwarding media stream table, obtains the second Media Stream public network address；Second Media Stream public network address is sent to monitoring frontend, notify that monitoring frontend is initiated Media Stream and connects and send Media Stream, first Media Stream public network address is sent to monitor client equipment, notifies that monitor client equipment initiates Media Stream and connects and receive Media Stream.The present invention does not rely on the specific function of egress router, realizes that the Media Stream between double operators concentrates forwarding.
Description
Technical field
Retransmission method and device are concentrated the present invention relates to technical field of video monitoring, more particularly to a kind of Media Stream.
Background technology
With the development of monitoring trade, the chain monitoring demand of wide area network increasingly increases, and each chain store is from different operators
It is linked into wide area network.In order to reduce network delay and packet loss that cross operator is brought, the outlet of general headquarters of chain store needs together
When be connected to multiple operators, as shown in figure 1, general headquarters egress routers connection 2 two networks of operator 1 and operator.In collection
, it is necessary to front end NVR (Network Video Recorder, network hard disk video recorder) is first by media stream under middle forward mode
MS (Media Server, media stream server) is given, MS forwards it to client again.As shown in figure 1, during XP1 fact NVR1,
, by media stream to MS, MS is again by forwarding media stream to XP1 for NVR1.So have a problem that, when user needs to carry out reality
During condition business, MS needs to provide the IP address of oneself, in this networking, MS only one of which address, and be private net address, if directly
Connect and this address is returned into NVR1 and client XP1, then because XP1, NVR1, MS are in respective private network, it is impossible to set up
Communication, also resulting in live business cannot normally set up.
A kind of existing processing mode on the egress router or fire wall of general headquarters by enabling ALG (Application
Level Gateway, ALG) function, meanwhile, increase configuration manually on the egress router, by the public network ground of MS
Location is mapped to private net address.The private net address of MS is sent to NVR1 and XP1 by VM (Video Manage, video management server)
When, message is changed on the egress router of general headquarters, and the MS private net addresses that internal layer is carried are modified as public network ground by ALG functions
Location.NVR1 and XP1 initiates Media Stream and connects to the public network address, and egress router is transmitted to MS according to above-mentioned mapping configuration.
The egress router or fire wall of processing mode requirement general headquarters must support ALG functions, and ALG functions are based on application-specific
, for example SIP (Session Initiation Protocol, session initiation protocol), if not the agreement of this standard,
Or router does not support ALG, then the program will be unable to realize.
The content of the invention
In view of this, retransmission method is concentrated the invention provides a kind of Media Stream, the method is applied in monitoring system
On video management server, the monitoring system include monitoring frontend, monitor client equipment, media stream server and
Video management server, the media stream server and video management server are located at same private network, the Exit Road of the private network by
Device connects different carrier networks, and the method includes：
When the request of the live monitoring frontend of the monitor client equipment is received, query monitor client
Equipment accesses table, obtains the monitor client equipment corresponding first and accesses public network address, and query monitor headend equipment connects
Enter table, obtain the monitoring frontend corresponding second and access public network address, wherein, the first access public network address is institute
State the public network address that video management server maps in the corresponding carrier network of the monitor client equipment, described second
It is the public affairs that the video management server maps in the corresponding carrier network of the monitoring frontend to access public network address
Net address；
According to the described first private net address for accessing public network address and the media stream server, forwarding media stream is inquired about
Table, obtains the first Media Stream public network address, and according to the described second private network for accessing public network address and the media stream server
Address, inquires about forwarding media stream table, obtains the second Media Stream public network address, wherein, the first Media Stream public network address is institute
State the public network address that media stream server maps in the corresponding carrier network of the monitor client equipment, second matchmaker
Body stream public network address is the public affairs that the video management server maps in the corresponding carrier network of the monitoring frontend
Net address；
Second Media Stream public network address is sent to the monitoring frontend, notifies the monitoring frontend to described
Second Media Stream public network address initiates Media Stream connection, by the linkup transmit Media Stream, and by the first Media Stream public network address
The monitor client equipment is sent to, notifies that the monitor client equipment initiates matchmaker to the first Media Stream public network address
Body stream is connected, and receives the Media Stream of the linkup transmit.
Retransmission unit, the device is concentrated to be applied to the video management in monitoring system present invention also offers a kind of Media Stream
On server, the monitoring system includes monitoring frontend, monitor client equipment, media stream server and video management
Server, the media stream server and video management server are located at same private network, and the egress router connection of the private network is not
Same carrier network, the device includes：
Access network acquiring unit, for receiving the live monitoring frontend of the monitor client equipment
During request, query monitor client device accesses table, obtains the monitor client equipment corresponding first and accesses public network address,
And query monitor headend equipment accesses table, obtain the monitoring frontend corresponding second and access public network address, wherein, it is described
First access public network address reflects for the video management server in the corresponding carrier network of the monitor client equipment
The public network address penetrated, described second accesses public network address for the video management server is corresponding in the monitoring frontend
The public network address mapped in carrier network；
Media address acquiring unit, the private network for accessing public network address and the media stream server according to described first
Address, inquires about forwarding media stream table, obtains the first Media Stream public network address, and access public network address and described according to described second
The private net address of media stream server, inquires about forwarding media stream table, obtains the second Media Stream public network address, wherein, described first
Media Stream public network address is that the media stream server maps in the corresponding carrier network of the monitor client equipment
Public network address, the second Media Stream public network address is the video management server in the corresponding fortune of the monitoring frontend
The public network address mapped in battalion's business's network；
Media Stream sets up unit, for the second Media Stream public network address to be sent into the monitoring frontend, notifies institute
State monitoring frontend and initiate Media Stream connection to the second Media Stream public network address, by the linkup transmit Media Stream, and
First Media Stream public network address is sent to the monitor client equipment, notifies the monitor client equipment to described first
Media Stream public network address initiates Media Stream connection, receives the Media Stream of the linkup transmit.
The present invention does not rely on the specific function of egress router, realizes that the Media Stream between double operators concentrates forwarding.
Brief description of the drawings
Fig. 1 is a kind of cross operator monitoring system schematic diagram.
Fig. 2 is the logical construction and its underlying hardware environment of Media Stream concentration retransmission unit in one embodiment of the present invention
Schematic diagram.
Fig. 3 is the flow chart of Media Stream concentration retransmission method in one embodiment of the present invention.
Fig. 4 is cross operator monitoring system schematic diagram in one embodiment of the present invention.
Fig. 5 is single-router virtual server mapping schematic diagram in one embodiment of the present invention.
Fig. 6 is multi-router virtual server mapping schematic diagram in one embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
The present invention provides a kind of Media Stream and concentrates retransmission unit, the device to be applied to the video management service in monitoring system
On device, the monitoring system includes monitoring frontend, monitor client equipment, media stream server and video management service
Device, the media stream server and video management server are located at same private network, and the egress router connection of the private network is different
Carrier network.Illustrated as a example by implemented in software below, but the present invention is not precluded from such as hardware or logical device
Deng other implementations.As shown in Fig. 2 the Media Stream concentrate retransmission unit operation hardware environment include CPU, internal memory, it is non-easily
The property lost memory and other hardware.The Media Stream concentrates retransmission unit as a virtual bench for logic level, and it passes through
CPU runs.The device sets up unit including access network acquiring unit, media address acquiring unit and Media Stream.Please join
Fig. 3 is examined, the use of the device and running are comprised the following steps：
Step 101, access network acquiring unit is set receiving the live front monitoring front-end of the monitor client equipment
During standby request, query monitor client device accesses table, obtains the monitor client equipment corresponding first and accesses public network
Address, and query monitor headend equipment accesses table, obtains the monitoring frontend corresponding second and accesses public network address, its
In, the first access public network address is the video management server in the corresponding operator's net of the monitor client equipment
The public network address mapped in network, the second access public network address is the video management server in the monitoring frontend
The public network address mapped in corresponding carrier network；
Step 102, media address acquiring unit accesses public network address and the media stream server according to described first
Private net address, inquire about forwarding media stream table, obtain the first Media Stream public network address, and according to described second access public network address and
The private net address of the media stream server, inquires about forwarding media stream table, obtains the second Media Stream public network address, wherein, it is described
First Media Stream public network address reflects for the media stream server in the corresponding carrier network of the monitor client equipment
The public network address penetrated, the second Media Stream public network address is that the media stream server is corresponding in the monitoring frontend
The public network address mapped in carrier network；
Step 103, Media Stream sets up unit and the second Media Stream public network address is sent into the monitoring frontend, notifies
The monitoring frontend is initiated Media Stream and is connected to the second Media Stream public network address, by the linkup transmit Media Stream,
And the first Media Stream public network address is sent to the monitor client equipment, notify the monitor client equipment to described
One Media Stream public network address initiates Media Stream connection, receives the Media Stream of the linkup transmit.
The present invention is applied to the monitoring system of cross operator network, and the collection transfer of Media Stream is realized by media server
Hair.Fig. 4 is refer to, it gives exemplary system diagram, can be varied from according to actual networking requirements.The monitoring system is main
Including video management server VM, media stream server MS, the egress router of server side, monitoring frontend (such as IPC,
NVR etc.) and monitor client equipment (such as mobile phone, XP), wherein, video management server and media stream server are located at private
In net, monitoring frontend and monitor client equipment are in different carrier networks.Under normal circumstances, IPC is responsible for regarding
The collection of frequency evidence, and send the data to NVR and carry out the storage and forwarding of video data, regarded when monitor client needs to check
Frequency according to when, can by access NVR equipment obtain need video data.Now with monitor client equipment XP fact front monitoring front-ends
Specific implementation process of the invention is introduced as a example by equipment NVR.
To the video management server VM and media of Intranet before fact is carried out, it is necessary on the egress router of general headquarters
Streaming server MS carries out virtual server mapping.Usual monitoring system can arrange a VM and several MS, be each VM and
MS carries out virtual server mapping on egress router interface.As shown in figure 4, the egress router of general headquarters is connected to two fortune
Battalion business, then carry out virtual server mapping for different carrier networks respectively on egress router.The monitoring system bag
VM and MS is included, the private net address of VM is 172.1.1.1, and the private net address of MS is 172.1.1.2.Egress router exists
Virtual server mapping is carried out with the interface of the network connection of operator 1, the public network address of VM is 30.30.30.1, MS after mapping
Public network address be 30.30.30.2；With the interface of the network connection of operator 2 on carry out virtual server mapping, VM after mapping
Public network address be 20.20.20.1, the public network address of MS is 20.20.20.2.
When XP1 asks fact NVR1, the monitor client equipment inside video management server inquiry accesses table, and this connects
Enter to have recorded in table the public network address that monitor client equipment accesses the video management server filled in during video management server,
The access public network address is the public network address that video management server maps in carrier network residing for monitor client equipment.
Video management server obtains the public network address by tabling look-up, and hereinafter referred to as first accesses public network address.
| Monitor client equipment | First accesses public network address |
| XP1 | 20.20.20.1 |
| XP2 | 20.20.20.1 |
| XP3 | 30.30.30.1 |
Table 1
Table 1 is that monitor client equipment accesses table.After video management server is tabled look-up, know that XP1 is accessed from operator 2,
First accesses public network address for 20.20.20.1.
Similarly, query monitor headend equipment accesses table, monitoring frontend is have recorded in the access table and accesses video management
The public network address of the video management server filled in during server, the access public network address is video management server before monitoring
The public network address mapped in carrier network residing for end equipment.Video management server obtains the public network address by tabling look-up, with
Lower abbreviation second accesses public network address.
| Monitoring frontend | Second accesses public network address |
| NVR1 | 30.30.30.1 |
| NVR2 | 20.20.20.1 |
Table 2
Table 2 is that monitoring frontend accesses table.After video management server is tabled look-up, know that NVR1 is accessed from operator 1, the
Two access public network address for 30.30.30.1.
Video management server accesses public network address and second and accesses public network address according to the first of above-mentioned acquisition of tabling look-up, looks into
Forwarding media stream table inside asking, obtains the corresponding media stream server public network addresses of XP1 and NVR1, the two Media Streams respectively
Server public network address is respectively that media stream server is reflected in the network of XP1 operators 2 and the network of NVR1 operators 1
The public network address penetrated.The forwarding media stream table can be by user's manual configuration on video management server, media forwarding
Table includes accessing public network address, media stream server private net address and media stream server public network address, wherein, Media Stream clothes
The corresponding relation of business device private net address and media stream server public network address is reflected carrying out virtual server to media stream server
It has been determined that need to be consistent when penetrating.
In actual monitored system layout, possible configuration multiple media stream server, therefore, specifically by which Media Stream
Server providing services, are determined by video management server.Video management server is according to access public network address and Media Stream clothes
Device private net address is engaged in determine to provide the media stream server public network address for servicing.Wherein, video management server is according to access
Public network address confirms that access device is accessed from which carrier network, one service available media streaming services of reselection
Device, after inquiry forwarding media stream table, it is determined that providing the public network address of the media stream server of service in the carrier network.It is right
In which media stream server to provide forwarding service by, generally by video management server according to the work of media stream server
Situation determines.
| Access public network address | Media stream server private net address | Media stream server public network address |
| 30.30.30.1 | 172.1.1.2 | 30.30.30.2 |
| 20.20.20.1 | 172.1.1.2 | 20.20.20.2 |
Table 3
Table 3 is forwarding media stream table.It is 20.20.20.1, media stream server that XP1 corresponding first accesses public network address
Private net address is 172.1.1.2, then the corresponding media stream server public network addresses of XP1 are 20.20.20.2, referred to as the first media
Stream public network address.
Similarly, from table 3, it is known that it is 30.30.30.1, Media Stream clothes that NVR1 corresponding second accesses public network address
Business device private net address is 172.1.1.2, then the corresponding media stream server public network addresses of NVR1 are 30.30.30.2, referred to as second
Media Stream public network address.
Second Media Stream public network address 30.30.30.2 is sent to NVR1 by video management server, notifies NVR1 to the public affairs
Net address initiates Media Stream connection, and media stream data is passed through into the linkup transmit to media stream server.
Similarly, the first Media Stream public network address 20.20.20.2 is sent to XP1 by video management server, notify XP1 to
The public network address initiates Media Stream connection, and receives the Media Stream of the linkup transmit.
Knowable to said process, video management server by inside it set up monitor client equipment access table,
Monitoring frontend accesses table and forwarding media stream table, realizes the concentration forwarding of Media Stream, and the program does not rely on Exit Road
By the special setting of device, only need to possess basic address of cache function, you can realize this programme.
Monitor client equipment inside video management server accesses table and monitoring frontend access table can be in equipment
Registration phase is set up.Before being registered, first have to complete to the mapping of the virtual server of video management server, obtain its
The public network address mapped in different operators network, meanwhile, according to the difference of monitoring device operator network, set in monitoring
The different registered address of standby upper configuration, the registered address is reflected for video management server in monitoring device operator network
The public network address penetrated.Monitoring device initiates registration to its corresponding registered address, to complete registration process.
Monitor client equipment carries video management server and exists when being registered to video management server, in logon message
The public network address mapped in carrier network residing for monitor client.Video management server is receiving monitor client equipment
Logon message when, obtained from the logon message public network address as first access public network address, and set up monitoring client
End equipment and the corresponding relation list item of the first access public network address, are added in monitor client equipment access table, such as the institute of table 1
Show.Because the different corresponding network segments of carrier network is different, therefore, video management server can be by the first access public network
Address judges that monitor client equipment is accessed from which carrier network, so as in forwarding media stream, by the fortune
Media stream is given monitor client equipment by battalion's business's network.
Similarly, monitoring frontend carries video management service when being registered to video management server in logon message
The public network address that device maps in carrier network residing for front monitoring front-end.Video management server is receiving monitoring frontend
Logon message when, the public network address is obtained from the logon message and accesses public network address as second, and set up front monitoring front-end
Equipment and the corresponding relation list item of the second access public network address, are added in monitoring frontend access table, as shown in table 2.
Video management server judges that monitoring frontend is connect from which carrier network by the second access public network address
Enter, so that in forwarding media stream, the Media Stream that the monitoring frontend sends is received by the carrier network.
Before fact is carried out, in addition it is also necessary to manually configure and forwarding media stream table is set up in video management server,
For the equipment of different operators network insertion provides the public network address that media stream server maps in correspondence carrier network.Should
Public network address, the private net address of media stream server and the matchmaker of video management server mapping are saved in forwarding media stream table
The corresponding relation of the public network address of body streaming server mapping, to table look-up, forwarding provides foundation, as shown in table 3.Video management is serviced
Device is provided and its operator by inquiring about the forwarding media stream table respectively monitor client equipment and monitoring frontend
The corresponding media stream server public network address of network, to set up Media Stream connection.
, it is necessary to carry out virtual server mapping to media stream server before fact is carried out, can manually configure
Into, the address mapping relation of media stream server also can be automatically issued by video management server to egress router, realize
The virtual server mapping of media stream server.This requires that video management server first sets up forwarding media stream table, has configured matchmaker
Then the mapping relations, are handed down to egress router by the address mapping relation of body streaming server.Meanwhile, egress router is needed
Possess and receive the mapping relations, and the ability that interface is configured is completed according to the mapping relations.Although this configuration mode needs
The program of mouth router does synchronous upgrading, but also saves the virtual server manual configuration time simultaneously, and configures cleverer
It is living, once configuration error, the forwarding media stream table that need to only change in video management server, re-issue configuration order,
Each egress router need not be separately configured.
Media stream server mapping relations as shown in table 3, media stream server private net address is 172.1.1.2, in fortune
The public network address for seeking the network mapping of business 1 is 30.30.30.2, is 20.20.20.2 in the public network address of the network mapping of operator 2.
The automatic detailed process that issues is：The mapping relations of above-mentioned private net address and public network address are issued and are given by video management server
Mouth router, notifies that egress router completes address of cache.Egress router extracts mapping and closes after above-mentioned mapping relations are obtained
Public network address in system, judges that whether the public network address belongs to the network segment of local network interface, if belonging to, mapping relations is matched somebody with somebody
Put over that interface.As shown in figure 5, egress router judges that 30.30.30.2 belongs to the network segment 30.30.30.1/24 of interface 1, then
The mapping relations of 172.1.1.2 and 30.30.30.2 are configured on interface 1；Similarly, 172.1.1.2 and 20.20.20.2 reflects
Relation is penetrated to configure on interface 2.Fig. 6 is multiple exit router multiplex roles configuration mode, and egress router 1 receives configuration order
Afterwards, judge there was only network segment 30.30.30.1/24s of the 30.30.30.2 to one's name under interface, then by 172.1.1.2 and
30.30.30.2 mapping relations are configured on the interface of oneself；Similarly, egress router 2 judges only have 20.20.20.2 to belong to
Network segment 20.20.20.1/24 under oneself interface, then by the configuration of the mapping relations of 172.1.1.2 and 20.20.20.2 oneself
On interface.
The present invention need not do special setting on egress router, you can realize the Media Stream between cross operator network
Forwarding is concentrated, network adaptability is strong.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (8)
1. a kind of Media Stream concentrates retransmission method, and the method is applied on the video management server in monitoring system, the prison
Control system includes monitoring frontend, monitor client equipment, media stream server and video management server, the media
Streaming server and video management server are located at same private network, and the egress router of the private network connects different carrier networks,
And the private net address of the media stream server is configured on the egress router from the media stream server in different fortune
The address mapping relation of the public network address in battalion's business's network, it is characterised in that the method includes：
When the request of the live monitoring frontend of the monitor client equipment is received, inquire about for recording monitoring visitor
The monitor client equipment that family end equipment accesses public network address corresponding relation with first accesses table, obtains the monitor client and sets
Standby corresponding first accesses public network address, and inquires about for recording monitoring frontend and the second access public network address corresponding relation
Monitoring frontend access table, obtain the monitoring frontend corresponding second and access public network address, wherein, described first
It is that the video management server maps in the corresponding carrier network of the monitor client equipment to access public network address
Public network address, the second access public network address is the video management server in the corresponding operation of the monitoring frontend
The public network address mapped in business's network；
According to the described first private net address for accessing public network address and the media stream server, forwarding media stream table is inquired about, obtained
The first Media Stream public network address is taken, and according to the described second private net address for accessing public network address and the media stream server,
Inquiry forwarding media stream table, obtains the second Media Stream public network address, wherein, the forwarding media stream table is used to record access public network
The corresponding relation of the public network address of address, the private net address of media stream server and media stream server, first media
Stream public network address is the public network that the media stream server maps in the corresponding carrier network of the monitor client equipment
Address, the second Media Stream public network address is the media stream server in the corresponding operator's net of the monitoring frontend
The public network address mapped in network；
Second Media Stream public network address is sent to the monitoring frontend, notifies the monitoring frontend to described second
Media Stream public network address initiates Media Stream connection, by the linkup transmit Media Stream, and the first Media Stream public network address is sent
To the monitor client equipment, notify that the monitor client equipment initiates Media Stream to the first Media Stream public network address
Connection, receives the Media Stream of the linkup transmit.
2. the method for claim 1, it is characterised in that set in the live front monitoring front-end of the monitor client equipment
Before standby, also include：
When the logon message of the monitor client equipment is received, described first is obtained from the logon message and accesses public affairs
Net address, and the corresponding relation list item that the monitor client equipment accesses public network address with described first is set up, it is added to institute
State monitor client equipment access table；
When the logon message of the monitoring frontend is received, described second is obtained from the logon message and accesses public network
Address, and the corresponding relation list item that the monitoring frontend accesses public network address with described second is set up, it is added to the prison
Control headend equipment accesses table.
3. the method for claim 1, it is characterised in that set in the live front monitoring front-end of the monitor client equipment
Before standby, also include：
Set up the media stream server private net address, the public network address that the media stream server maps in the operator network
And the corresponding relation list item of public network address that the video management server maps in same carrier network, it is added to institute
State forwarding media stream table.
4. the method for claim 1, it is characterised in that set in the live front monitoring front-end of the monitor client equipment
Before standby, also include：
By the public network ground of the private net address of media stream server described in the forwarding media stream table and the media stream server
Location corresponding relation is handed down to the egress router, notifies that the egress router carries out address of cache so that before the monitoring
End equipment and the monitor client equipment are sent to the message of the media stream server when by the egress router,
The egress router is sent to the media stream server according to the address mapping relation.
5. a kind of Media Stream concentrates retransmission unit, the device to be applied on the video management server in monitoring system, the prison
Control system includes monitoring frontend, monitor client equipment, media stream server and video management server, the media
Streaming server and video management server are located at same private network, and the egress router of the private network connects different carrier networks,
And the private net address of the media stream server is configured on the egress router from the media stream server in different fortune
The address mapping relation of the public network address in battalion's business's network, it is characterised in that the device includes：
Access network acquiring unit, for receiving the request of the live monitoring frontend of the monitor client equipment
When, inquire about and accessed for recording the monitor client equipment that monitor client equipment accesses public network address corresponding relation with first
Table, obtains the monitor client equipment corresponding first and accesses public network address, and inquire about for record monitoring frontend with
Second monitoring frontend for accessing public network address corresponding relation accesses table, obtains the monitoring frontend corresponding second and connects
Enter public network address, wherein, the first access public network address is the video management server in the monitor client equipment
The public network address mapped in corresponding carrier network, the second access public network address is the video management server in institute
State the public network address mapped in the corresponding carrier network of monitoring frontend；
Media address acquiring unit, the private network ground for accessing public network address and the media stream server according to described first
Location, inquires about forwarding media stream table, obtains the first Media Stream public network address, and access public network address and the matchmaker according to described second
The private net address of body streaming server, inquires about forwarding media stream table, obtains the second Media Stream public network address, wherein, the Media Stream
Forward table is used to record the public network address of access public network address, the private net address of media stream server and media stream server
Corresponding relation, the first Media Stream public network address is the media stream server in the corresponding fortune of the monitor client equipment
The public network address mapped in battalion's business's network, the second Media Stream public network address is the media stream server before the monitoring
The public network address mapped in the corresponding carrier network of end equipment；
Media Stream sets up unit, for the second Media Stream public network address to be sent into the monitoring frontend, notifies the prison
Control headend equipment is initiated Media Stream and is connected to the second Media Stream public network address, by the linkup transmit Media Stream, and by the
One Media Stream public network address is sent to the monitor client equipment, notifies the monitor client equipment to first media
Stream public network address initiates Media Stream connection, receives the Media Stream of the linkup transmit.
6. device as claimed in claim 5, it is characterised in that before the access network acquiring unit, also include：
Client access unit, for when the logon message of the monitor client equipment is received, from the logon message
It is middle to obtain the first access public network address, and it is right with the described first access public network address to set up the monitor client equipment
List item should be related to, be added to the monitor client equipment access table；
Front end access unit, for when the logon message of the monitoring frontend is received, being obtained from the logon message
Take described second and access public network address, and set up the corresponding relation that the monitoring frontend accesses public network address with described second
List item, is added to the monitoring frontend access table.
7. device as claimed in claim 5, it is characterised in that before the access network acquiring unit, also include：
Table unit is built in forwarding, for setting up the media stream server private net address, the media stream server in operator's net
The public network address that is mapped in same carrier network of public network address and the video management server mapped in network it is right
List item should be related to, be added to the forwarding media stream table.
8. device as claimed in claim 5, it is characterised in that before the access network acquiring unit, also include：
Virtual map unit, for by the private net address of media stream server described in the forwarding media stream table and the media
The public network address corresponding relation of streaming server is handed down to the egress router, notifies that the egress router enters row address and reflects
Penetrate so that the message that the monitoring frontend and the monitor client equipment are sent to the media stream server is passing through
During the egress router, the egress router is sent to the media stream server according to the address mapping relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410245419.3A CN104023206B (en) | 2014-06-04 | 2014-06-04 | Media Stream concentrates retransmission method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410245419.3A CN104023206B (en) | 2014-06-04 | 2014-06-04 | Media Stream concentrates retransmission method and device |
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| CN104506405B (en) * | 2014-12-23 | 2018-08-31 | 浙江宇视科技有限公司 | The method and device of cross-domain access |
| CN106034079B (en) * | 2015-03-09 | 2019-06-25 | 中国移动通信集团上海有限公司 | A kind of method for configuring route, service routing method and core router |
| CN108347622B (en) * | 2018-03-06 | 2020-06-30 | 腾讯科技（深圳）有限公司 | Multimedia data pushing method and device, storage medium and equipment |
| CN112188227A (en) * | 2020-09-30 | 2021-01-05 | 武汉中科通达高新技术股份有限公司 | Streaming media data distribution method and device |
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