CN103139661B - The redundancy protected method of a kind of video distribution network node server and device - Google Patents
The redundancy protected method of a kind of video distribution network node server and device Download PDFInfo
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- CN103139661B CN103139661B CN201110392550.9A CN201110392550A CN103139661B CN 103139661 B CN103139661 B CN 103139661B CN 201110392550 A CN201110392550 A CN 201110392550A CN 103139661 B CN103139661 B CN 103139661B
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Abstract
The present invention relates to Information & Communication Technology field, be specifically related to redundancy protected method and the device of a kind of video distribution network node server.In order to when video distribution network node server generation Single Point of Faliure, the net cast distributed tasks video distribution network node server of inefficacy carried is quickly switched in other similar video distribution network node server, video distribution network global server, when each video live broadcast service is registered, distributes redundancy live broadcast service distribution path for it.When video distribution network global server detects the duty exception of certain video distribution network node server, video distribution network global server starts Video Distribution Network fast handover procedures, lost efficacy video distribution network node server downstream visual distribution network-node server be switched fast network be connected to standby upstream video distribution network-node server, so that it is guaranteed that video live broadcast service do not interrupt distribution.
Description
Technical field
The present invention relates to communication network, particularly relate to a kind of video distribution network node server in Video Distribution Network
Redundancy protected method and device.
Background technology
Along with the extensive application of video technique, the demand of net cast based on Internet service increases day by day, and based on
The extensive video flow distribution of Internet becomes net cast and services the severe challenge faced.Although CDN skill
Art is widely used in distributing web traffic and video request program flow, it is achieved the access nearby of Web content, alleviates stream matchmaker
The pressure that backbone bandwidth is brought by the high-throughput of body transmission, improves service response speed, but current CDN technology is also
The traffic distribution problem of extensive video live broadcast service can not be solved well.
As it is shown in figure 1, for extensive video live broadcast service, can by dispose by live source tiny node server cluster,
The video distribution network node server clusters such as relay node services device cluster and edge node server cluster are formed
Video Distribution Network improves the efficiency of service of extensive video live broadcast service, reduces shared by net cast service transmission
The network bandwidth.
For the Video Distribution Network towards video live broadcast service shown in Fig. 1, the video disposing a large amount of dispersions divides
Send out the high concentration management of network-node server cluster and control to be to ensure that necessity of network efficiency, reliability, controllability
Means.Video distribution network global server can be regarded as one group of logical device, it is achieved that the management of Video Distribution Network,
Monitor, dynamically configure, control, the function such as scheduling, to all video distribution network node server in Video Distribution Network
Carry out centralized Control, manage and dispatch.
When certain video distribution network node server generation Single Point of Faliure in Video Distribution Network, Video Distribution Network
Global server must be quickly carried out business switching, will appear from what the video distribution network node server of fault was carried
Net cast distributed tasks takes over seamlessly in other similar video distribution network node server, to reduce video distribution net
The impact that video live broadcast service is distributed by network node server Single Point of Faliure.
Summary of the invention
In order to when video distribution network node server generation Single Point of Faliure, the Video Distribution Network node serve that will lose efficacy
The net cast distributed tasks that device is carried is quickly switched in other similar video distribution network node server, thus protects
The live media stream distribution of card video live broadcast service is not affected by video distribution network node server Single Point of Faliure, this
The bright redundancy protected method providing a kind of video distribution network node server and device.
According to the first aspect of the invention, it is provided that the redundancy protected method of a kind of video distribution network node server, its
In:
(1) video distribution network global server is when each video live broadcast service is registered, and distributes the live industry of redundancy for it
Business distribution path, described path includes multiple live source tiny node server, multiple relay node services
Device, multiple edge node server；
(2) in redundancy live broadcast service distribution path, each relay node services device and edge node server are all simultaneously
Allocated multiple upstream node servers that can substitute mutually；
(3) network with certain video distribution network node server is lost even when video distribution network global server
When connecing or detect the duty exception of certain video distribution network node server, video distribution net
Network global server starts Video Distribution Network fast handover procedures, the Video Distribution Network node clothes of inefficacy
All downstream visual distribution network-node server of business device is switched fast network, and to be connected to other alternative
Upstream video distribution network-node server, from described alternative upstream video distribution network node clothes
Business device obtains the live media stream of video live broadcast service.
According to the second aspect of the invention, it is provided that a kind of global node fault Quick recovery device, it runs on video and divides
In hairnet network global server, responsible coordination realizes the Single Point of Faliure fast quick-recovery work of video distribution network node server
Make.Described device includes: the first acquisition device, the second acquisition device, the second dispensing device, fault recovery control dress
Put.Wherein: the first acquisition device divides for obtaining the video from other device in video distribution network global server
Send out network-node server fail message；Second acquisition device is for receiving from node failure quick recovery agency device
Information；Second dispensing device is used for sending information to node failure quick recovery agency device；Fault recovery controls device and uses
In the quick recovery process of Single Point of Faliure controlling video distribution network node server.
According to the third aspect of the invention we, it is provided that a kind of node failure quick recovery agency device, it runs on video and divides
Sending out in network-node server, the Single Point of Faliure being responsible for realizing video distribution network node server is quickly resumed work.Institute
State device to include: the 3rd acquisition device, the 3rd dispensing device, fault recovery control device.Wherein: the 3rd obtains dress
Put for obtaining the information from global node fault Quick recovery device；3rd dispensing device is used for sending information to the overall situation
Node failure Quick recovery device；Fault recovery control device is used for controlling video distribution network node server and realizes fault
Node fast handover procedures.
According to the fourth aspect of the invention, it is provided that live source tiny node server failure fast handover procedures.Wherein, bag
Include following steps:
(1) video distribution network global server detects a live source tiny node server failure；
(2) video distribution network global server retrieval inefficacy live source tiny node server is responsible for all videos of distribution
Live broadcast service, for each video live broadcast service retrieved, to inefficacy live source tiny node server
All downstream relay node servers send upstream node failure notification message, notice live source tiny node clothes
Business device fail message；
(3) the downstream relay node server receiving upstream node failure notification message performs node server Business Stream
Handoff procedure, stops obtaining live media stream from inefficacy upstream node server, starts and can replace from other
The upstream node server in generation obtains live media stream；
(4) video distribution network global server by inefficacy live source tiny node server from Video Distribution Network topology
Remove.
According to the fifth aspect of the invention, it is provided that relay node services device inefficacy fast handover procedures.Wherein, including with
Lower step:
(1) video distribution network global server detects a relay node services device inefficacy；
(2) all net casts of distribution are responsible for by video distribution network global server retrieval inefficacy relay node services device
Business, for each video live broadcast service retrieved, to all downstreams of inefficacy relay node services device
Edge node server sends upstream node failure notification message, notifies relay node services device fail message；
(3) the downstream edge node server receiving upstream node failure notification message performs node server Business Stream
Handoff procedure, stops obtaining live media stream from inefficacy upstream node server, starts from alternative
Trip node server obtains live media stream；
(4) each video that video distribution network global server is responsible for distribution for inefficacy relay node services device is straight
Broadcast business, send downstream node to all upstream node servers of inefficacy relay node services device and lost efficacy logical
Know message；
(5) the upstream node server receiving downstream node failure notification message stops to inefficacy relay node services device
Forward live media stream；
(6) inefficacy relay node services device is moved from Video Distribution Network topology by video distribution network global server
Remove.
According to the sixth aspect of the invention, it is provided that edge node server inefficacy fast handover procedures.Wherein, including with
Lower step:
(1) video distribution network global server detects an edge node server inefficacy；
(2) each video that video distribution network global server is responsible for distribution for inefficacy edge node server is straight
Broadcast business, send downstream node to all upstream node servers of inefficacy edge node server and lost efficacy logical
Know message；
(3) the upstream node server receiving downstream node failure notification message stops to inefficacy edge node server
Forward live media stream；
(4) inefficacy edge node server is moved from Video Distribution Network topology by video distribution network global server
Remove.
According to the seventh aspect of the invention, it is provided that node server Business Stream handoff procedure.Wherein, comprise the following steps:
(1) upstream node that video distribution network node server receives from video distribution network global server loses
Effect notification message, notifies its upstream node server failure；
(2) video distribution network node server stops obtaining the straight of video live broadcast service from inefficacy upstream node server
Broadcast Media Stream；
(3) video distribution network node server is for each net cast industry received from inefficacy upstream node server
Business, selects the video distribution network node server of an alternative inefficacy upstream node server to ask
Obtain the live media stream of described video live broadcast service.
Use the solution of the present invention, when certain the video distribution network node server generation single-point event in Video Distribution Network
During barrier, the net cast distributed tasks that the video distribution network node server of inefficacy is carried can be quickly switched into other
In similar alternative video distribution network node server, thus reduce video distribution network node server Single Point of Faliure
Impact on net cast distribution service.
Accompanying drawing explanation
The following detailed description to non-limiting example, the further feature of the present invention, mesh is read by referring to accompanying drawing
And advantage will become more apparent upon.The schematic description and description of the present invention is used for explaining the present invention, and it is right to be not intended that
The improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the Video Distribution Network system structure schematic diagram of video live broadcast service；
Fig. 2 shows that the structure of the global node fault Quick recovery device of a specific embodiment according to the present invention is shown
It is intended to；
Fig. 3 shows that the structure of the node failure quick recovery agency device of a specific embodiment according to the present invention is shown
It is intended to；
Fig. 4 shows that the live source tiny node server failure of a specific embodiment according to the present invention was switched fast
The flow chart of journey；
Fig. 5 shows the relay node services device inefficacy fast handover procedures of a specific embodiment according to the present invention
Flow chart；
Fig. 6 shows the edge node server inefficacy fast handover procedures of a specific embodiment according to the present invention
Flow chart；
Fig. 7 shows the flow chart of the node server Business Stream handoff procedure of a specific embodiment according to the present invention.
Wherein, same or analogous reference represents same or analogous steps characteristic or device/module.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the preferred embodiment of the present invention is described in detail.
As it is shown in figure 1, in Video Distribution Network, as video distribution network global server, global server 1
It is responsible for all video distribution network node server in network are carried out centralized Control, manage, monitor and dispatch.For
Each video live broadcast service of distribution in network, global server 1 all can create an independent net cast distribution for it
Tree is responsible for the live media stream of described video live broadcast service and distributes in real time.Video distribution network node server comprise straight
Broadcast the polytypes such as source station node server, relay node services device, edge node server.Wherein, live source station joint
Point server is responsible for receiving the Media Stream of the live source from video live broadcast service and distributing in Video Distribution Network；Relaying
Node server is responsible for forwarding the straight of video live broadcast service between live source tiny node server and edge node server
Broadcast Media Stream；Edge node server is responsible for forwarding the live media stream of video live broadcast service to subscription client.
Such as: when video live broadcast service x is registered, global server 1 can distribute live source tiny node server J11,
The Video Distribution Network nodes such as relay node services device J21, edge node server J31 and edge node server J33
Server constitutes the net cast distribution tree of video live broadcast service x, is responsible for the live media flow point of video live broadcast service x
Send out work.
If during the live media stream distribution of video live broadcast service x, live source tiny node server J11 or in
The node server J21 that continues breaks down, then the net cast stream distribution work of video live broadcast service x will be interrupted, all
Subscription client all will be unable to receive the live media stream of video live broadcast service x.
In order to avoid above-mentioned video distribution network node server Single Point of Faliure is to the net cast industry in Video Distribution Network
The impact that business distribution is brought, the present invention proposes the redundancy protected method of a kind of video distribution network node server.When
During the registration of video live broadcast service x, global server 1 can distribute live source tiny node server J11, live source station joint
Point server J12, relay node services device J21, relay node services device J22, edge node server J31 and edge
Node server J33 constitutes the net cast distribution tree of video live broadcast service x, is responsible for the live of video live broadcast service x
Media Stream distribution work.Wherein, live source tiny node server J11 and live source tiny node server J12 is relaying joint
Point server J21 and the upstream node server of relay node services device J22；Edge node server J31 and edge joint
Point server J33 is relay node services device J21 and the downstream node server of relay node services device J22.In redundancy
In live broadcast service distribution path, each relay node services device and edge node server the most simultaneously allocated multiple can be mutual
The upstream video distribution network-node server substituted mutually.If global server 1 detects live source tiny node server
J11 duty is abnormal, and global server 1 starts Video Distribution Network fast handover procedures, and live source tiny node services
The downstream node server of device J11, it may be assumed that relay node services device J21 and relay node services device J22 is all switched fast
Network is connected to live source tiny node server J12, obtains original by live source station from live source tiny node server J12
The live media stream of the video live broadcast service of node server J11 distribution.
Hereinafter, being described a second aspect of the present invention according to Fig. 2, wherein, Fig. 1 and associated description thereof are in this together
As reference.
As a example by the global server 1 shown in Fig. 1, wherein comprise a kind of global node fault Quick recovery device, use
Quickly resume work in the Single Point of Faliure coordinating to realize video distribution network node server.The fast quick-recovery of global node fault
Device includes: first acquisition device the 101, second acquisition device the 102, second dispensing device 103, fault recovery control
Device 104.Wherein:
First acquisition device 101, takes for obtaining the node from other device in video distribution network global server
Business device fail message, and submit to fault recovery control device 104 process.
Second acquisition device 102, for receiving the information from node failure quick recovery agency device, and submits to event
Barrier recovers to control device 104 and processes.
Second dispensing device 103, for receiving the information controlling device 104 from fault recovery, and is sent to node by it
Fault quick recovery agency device.
Fault recovery controls device 104, for controlling the Single Point of Faliure fast quick-recovery mistake of video distribution network node server
Journey.Fault recovery controls device 104 and obtains the inefficacy of certain video distribution network node server from the first acquisition device 101
Information after, retrieval inefficacy video distribution network node server be responsible for distribution all video live broadcast service, for wherein
Each video live broadcast service, performs the quick recovery process of Single Point of Faliure of video distribution network node server so that lost efficacy
The upstream video distribution network-node server of video distribution network node server stops saving to inefficacy Video Distribution Network
Point server forwards live media stream, and the downstream visual distribution network-node server of failure node server is switched to other
Alternative upstream video distribution network-node server obtains the live media stream of required video live broadcast service.
Such as: when video live broadcast service x is registered, global server 1 can distribute live source tiny node server J11,
Live source tiny node server J12, relay node services device J21, relay node services device J22, edge node server
J31 and edge node server J33 constitute the net cast distribution tree of video live broadcast service x, are responsible for net cast industry
The live media stream distribution work of business x.Wherein, live source tiny node server J11 and live source tiny node server J12
Can substitute mutually；Relay node services device J21 and relay node services device J22 can substitute mutually；Fringe node takes
Business device J31 and edge node server J33 can substitute mutually.
When relaying node server J21 and breaking down, global server 1 first passes through control channel monitoring device inspection
Measuring relay node services device J21 to lose efficacy, relaying is saved by described control channel monitoring device by the first acquisition device 101
The information that point server J21 lost efficacy submits to global node fault Quick recovery device.At the fast quick-recovery of global node fault
In device, the information that the relay node services device J21 received lost efficacy is handed to fault recovery by the first acquisition device 101
Control device 104.Fault recovery control device 104 retrieve relay node services device J21 be responsible for distribute all videos straight
Broadcast business, and for each video live broadcast service, perform the fast quick-recovery of Single Point of Faliure of video distribution network node server
Process.As a example by video live broadcast service x, fault recovery controls device 104 and sends upstream by the second dispensing device 103
Node failure notification message, to edge node server J31 and edge node server J32, notifies that they switching upstreams regard
Frequency division sends out network-node server to substituting upstream video distribution network-node server, it may be assumed that relay node services device J22.
Fault recovery control device 104 sends downstream node failure notification message by the second dispensing device 103 and saves to live source station
Point server J11 and live source tiny node server J12, notifies them to stop to relay node services device J21 and forwards directly
Broadcast Media Stream.As a example by video live broadcast service x, the quick recovery process of Single Point of Faliure of video distribution network node server
Make the upstream video distribution network-node server of the relay node services device J21 lost efficacy, it may be assumed that live source tiny node takes
Business device J11 or live source tiny node server J12, stops forwarding video live broadcast service x to relay node services device J21
Live media stream.The downstream visual distribution network-node server of the relay node services device J21 lost efficacy, it may be assumed that edge
Node server J31, edge node server J33, be switched to substitute upstream video distribution network-node server, it may be assumed that
Relay node services device J22, obtains the live media stream of video live broadcast service x.
Hereinafter, being described a third aspect of the present invention according to Fig. 3, wherein, Fig. 1 and associated description thereof are in this together
As reference.
As a example by video distribution network node server J11 shown in Fig. 1, J21, J31 etc., wherein comprise a kind of joint
Point failure quick recovery agency device, for realizing the Single Point of Faliure fast quick-recovery work of video distribution network node server
Make.
Node failure quick recovery agency device includes: the 3rd acquisition device the 201, the 3rd dispensing device 202, fault
Recover to control device 203.Wherein:
3rd acquisition device 201, for obtaining the information from global node fault Quick recovery device, and submits to event
Barrier recovers to control device 203 and processes.
3rd dispensing device 202, for being sent to global node fault by the information controlling device 203 from fault recovery
Quick recovery device.
Fault recovery controls device 203, for controlling video according to the information from global node fault Quick recovery device
Distribution network-node server realizes malfunctioning node fast handover procedures.
As a example by edge node server J31 shown in Fig. 1, the node failure being positioned in edge node server J31
Quickly the 3rd acquisition device 201 in recovery agency device receives from the global node fault in global server 1 fast
The upstream node failure notification message of quick-recovery device, and message indicates relay node services device J21 lost efficacy, the 3rd obtains
Fetching put 201 the upstream node failure notification message received is handed to fault recovery control device 203 process.
Fault recovery controls device 203 and is responsible for coordinating other device in edge node server J31, for fringe node service
The net cast industry that all upstream videos distribution network-node server is relay node services device J21 of device J31 carrying
Business, all selects to substitute upstream video distribution network-node server, such as: relay node services device J22, regards described in request
Frequently the live media stream of live broadcast service.
Hereinafter, with reference to Fig. 4, a fourth aspect of the present invention is described, wherein, Fig. 1, Fig. 2, Fig. 3 and relevant
Description is incorporated herein by reference.
Such as: when video live broadcast service x is registered, global server 1 distributes live source tiny node server J11, straight
Broadcast source station node server J12, relay node services device J21, relay node services device J22, edge node server
J31 and edge node server J33 constitute the net cast distribution tree of video live broadcast service x, are responsible for net cast industry
The net cast stream distribution work of business x.Wherein, live source tiny node server J11 and live source tiny node server J12
Can substitute mutually；Relay node services device J21 and relay node services device J22 can substitute mutually；Fringe node takes
Business device J31 and edge node server J33 can substitute mutually.
With the global server 1 shown in Fig. 1, live source tiny node server J11, live source tiny node server J12,
As a example by relay node services device J21, relay node services device J22, it is assumed that live source tiny node server J11 is merely responsible for
The live media stream distribution of video live broadcast service x, live source tiny node server failure fast handover procedures includes walking as follows
Rapid:
Step S10, global server 1 detects live source tiny node server J11 and lost efficacy.
Step S11, the global node fault Quick recovery device retrieval live source tiny node server in global server 1
J11 be responsible for distribution video live broadcast service x, obtain video live broadcast service x downstream relay node server (such as: in
Continue node server J21, relay node services device J22), global node fault Quick recovery device sends upstream node and loses
Effect notification message, to relay node services device J21 and relay node services device J22, notifies live source tiny node server J11
Fail message.
Step S12, receives relay node services device J21 and the relay node services device of upstream node failure notification message
J22 carries out upstream video distribution network-node server switching, stops acquisition from live source tiny node server J11 and regards
Frequently the live media stream of live broadcast service x, starts from substituting upstream video distribution network-node server, such as: live source station
Node server J12, obtains the live media stream of video live broadcast service x.
Step S13, global server 1 by lost efficacy live source tiny node server J11 from Video Distribution Network topology
Remove.
If the live source tiny node server J11 lost efficacy is responsible for the live media flow point of multiple video live broadcast service simultaneously
Send out work, the then each video live broadcast service carried for it, be required to perform the mistake from step S11 to step S12
Journey.Thus ensure that the video live broadcast service that the live source tiny node server J11 lost efficacy is responsible for transmitting will not be interrupted.
Hereinafter, with reference to Fig. 5, a fifth aspect of the present invention is described, wherein, Fig. 1, Fig. 2, Fig. 3 and relevant
Description is incorporated herein by reference.
Such as: when video live broadcast service x is registered, global server 1 distributes live source tiny node server J11, straight
Broadcast source station node server J12, relay node services device J21, relay node services device J22, edge node server
J31 and edge node server J33 constitute the net cast distribution tree of video live broadcast service x, are responsible for net cast industry
The net cast stream distribution work of business x.Wherein, live source tiny node server J11 and live source tiny node server J12
Can substitute mutually；Relay node services device J21 and relay node services device J22 can substitute mutually；Fringe node takes
Business device J31 and edge node server J33 can substitute mutually.
With the global server 1 shown in Fig. 1, live source tiny node server J11, relay node services device J21, limit
As a example by edge node server J31 and edge node server J33, it is assumed that it is straight that relay node services device J21 is merely responsible for video
Broadcasting the live media stream distribution of business x, relay node services device inefficacy fast handover procedures comprises the steps:
Step S20, global server 1 detects relay node services device J21 and lost efficacy.
Step S21, the global node fault Quick recovery device retrieval relay node services device J21 in global server 1
It is responsible for the video live broadcast service of distribution, it may be assumed that video live broadcast service x.For video live broadcast service x, relay node services
The downstream visual distribution network-node server of device J21 is: edge node server J31 and edge node server J33.
Global node fault Quick recovery device sends upstream node failure notification message to edge node server J31 and edge
Node server J33, notifies relay node services device J21 fail message.
Step S22, receives edge node server J31 and the edge node server of upstream node failure notification message
J33 performs node server Business Stream handoff procedure, stops obtaining net cast from the relay node services device J21 lost efficacy
The live media stream of business x, starts from the upstream video distribution network-node server substituted, it may be assumed that relay node services
Device J22 obtains video live broadcast service x live media stream.
Step S23, global server 1 is to the upstream node server of relay node services device J21, such as: live source station
Node server J11 sends downstream node failure notification message.
Step S24, live source tiny node server J11 stops forwarding live media stream to relay node services device J21.
Step S25, the relay node services device J21 of inefficacy is removed from Video Distribution Network topology by global server 1.
If the relay node services device J21 lost efficacy is responsible for the live media stream distribution work of multiple video live broadcast service simultaneously
Make, then each video live broadcast service carried for it, be required to the process performing step S21 to step S24.From
And ensure that the video live broadcast service that the relay node services device J21 lost efficacy is responsible for transmitting will not be interrupted.
Hereinafter, with reference to Fig. 6, a sixth aspect of the present invention is described, wherein, Fig. 1, Fig. 2, Fig. 3 and relevant
Description is incorporated herein by reference.
With the global server 1 shown in Fig. 1, relay node services device J21, relay node services device J22, edge
As a example by node server J31, it is assumed that edge node server J31 is merely responsible for the live media flow point of video live broadcast service x
Sending out, edge node server inefficacy fast handover procedures comprises the steps:
Step S30, global server 1 detects edge node server J31 and lost efficacy.
Step S31, global server 1 distributes network-node server to the upstream video of edge node server J31
(such as: relay node services device J21 or relay node services device J22) sends downstream node failure notification message.
Step S32, upstream video distribution network-node server is (such as: relay node services device J21 or via node clothes
Business device J22) stop forwarding the live media stream of video live broadcast service x to edge node server J31 lost efficacy.
Step S33, edge node server J31 of inefficacy is removed from Video Distribution Network topology by global server 1.
Hereinafter, with reference to Fig. 7, a seventh aspect of the present invention is described, wherein, Fig. 1, Fig. 2, Fig. 3 and relevant
Description is incorporated herein by reference.
With the global server 1 shown in Fig. 1, relay node services device J21, relay node services device J22, edge
As a example by node server J31, it is assumed that edge node server J31 is receiving and forwarding from relaying node server J21
The live media stream of video live broadcast service x, node server Business Stream handoff procedure comprises the steps:
Step S40, edge node server J31 receives the upstream node failure notification message from global server 1,
Instruction relay node services device J21 lost efficacy.
Step S41, edge node server J31 stops obtaining net cast industry from the relay node services device J21 lost efficacy
The live media stream of business x.
Step S42, edge node server J31 selects a upstream video that can substitute relay node services device J21
Distribution network-node server, such as: relay node services device J22, carrys out the live matchmaker of acquisition request video live broadcast service x
Body stream.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made is any
Amendment, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. the redundancy protected method of a video distribution network node server, it is characterised in that: Video Distribution Network global service
Device, when each video live broadcast service is registered, distributes redundancy live broadcast service distribution path for it, and described path includes: many
Individual live source tiny node server, multiple relay node services device, multiple edge node server；At redundancy live broadcast service
In distribution path, each relay node services device and edge node server is the most simultaneously allocated multiple can substitute mutually
Upstream video distribution network-node server；Save with certain Video Distribution Network when video distribution network global server loses
When the network of point server connects or detects the duty exception of certain video distribution network node server, video
Distribution network global server starts Video Distribution Network fast handover procedures, the video distribution network node server of inefficacy
All downstream visual distribution network-node server be switched fast network and be connected to other alternative upstream video distribution networks
Network node server, obtains the live of video live broadcast service from described alternative upstream video distribution network-node server
Media Stream；
Live source tiny node server failure fast handover procedures comprises the steps:
Video distribution network global server detects a live source tiny node server failure；
Video distribution network global server retrieval inefficacy live source tiny node server is responsible for all video live broadcast service of distribution,
For each video live broadcast service retrieved, to all downstream relay node serve of inefficacy live source tiny node server
Device sends upstream node failure notification message, notifies live source tiny node server failure information；
The downstream relay node server receiving upstream node failure notification message performs node server Business Stream handoff procedure,
Stop obtaining live media stream from inefficacy upstream node server, start and obtain from other alternative upstream node server
Cut-off broadcasts Media Stream；
Inefficacy live source tiny node server is removed from Video Distribution Network topology by video distribution network global server.
The redundancy protected method of video distribution network node server the most according to claim 1, is further characterized in that, in
The node server inefficacy fast handover procedures that continues comprises the steps:
A) video distribution network global server detects a relay node services device inefficacy；
B) all net cast industry of distribution are responsible for by video distribution network global server retrieval inefficacy relay node services device
Business, for each video live broadcast service retrieved, saves to all downstream edges of inefficacy relay node services device
Point server sends upstream node failure notification message, notifies relay node services device fail message；
C) the downstream edge node server execution node server Business Stream receiving upstream node failure notification message is cut
Change process, stop obtaining live media stream from inefficacy upstream node server, start from alternative upstream node
Server obtains live media stream；
D) video distribution network global server is responsible for each net cast of distribution for inefficacy relay node services device
Business, sends downstream node failure notification to all upstream node servers of inefficacy relay node services device and disappears
Breath；
E) the upstream node server receiving downstream node failure notification message stops turning to inefficacy relay node services device
Send out live media stream；
F) inefficacy relay node services device is removed from Video Distribution Network topology by video distribution network global server.
The redundancy protected method of video distribution network node server the most according to claim 1, is further characterized in that, limit
Edge node server inefficacy fast handover procedures comprises the steps:
A) video distribution network global server detects an edge node server inefficacy；
B) video distribution network global server is responsible for each net cast of distribution for inefficacy edge node server
Business, sends downstream node failure notification to all upstream node servers of inefficacy edge node server and disappears
Breath；
C) the upstream node server receiving downstream node failure notification message stops turning to inefficacy edge node server
Send out live media stream；
D) inefficacy edge node server is removed from Video Distribution Network topology by video distribution network global server.
The redundancy protected method of video distribution network node server the most according to claim 1, is further characterized in that, joint
Point server Business Stream handoff procedure comprises the steps:
A) upstream node that video distribution network node server receives from video distribution network global server lost efficacy
Notification message, notifies its upstream node server failure；
B) video distribution network node server stops obtaining the live of video live broadcast service from inefficacy upstream node server
Media Stream；
C) video distribution network node server is for each video live broadcast service received from inefficacy upstream node server,
The video distribution network node server selecting an alternative inefficacy upstream node server comes acquisition request institute
State the live media stream of video live broadcast service.
5. a global node fault Quick recovery device, it is characterised in that:
A) global node fault Quick recovery device runs in video distribution network global server, is responsible for coordinating realization and regards
Frequency division is sent out the Single Point of Faliure of network-node server and is quickly resumed work；
B) global node fault Quick recovery device includes: the first acquisition device, the second acquisition device, the second transmission dress
Put, fault recovery controls device；
C) the first acquisition device is for obtaining the video distribution from other device in video distribution network global server
Network-node server fail message；
D) the second acquisition device is for receiving the information from node failure quick recovery agency device；
E) the second dispensing device is used for sending information to node failure quick recovery agency device；
F) fault recovery controls device for controlling the quick recovery process of Single Point of Faliure of video distribution network node server.
6. a node failure quick recovery agency device, it is characterised in that:
A) node failure quick recovery agency plant running is in video distribution network node server, is responsible for realizing video and divides
The Single Point of Faliure sending out network-node server is quickly resumed work；
B) node failure quick recovery agency device includes: the 3rd acquisition device, the 3rd dispensing device, fault recovery control
Device processed；
C) the 3rd acquisition device is for obtaining the information from global node fault Quick recovery device；
D) the 3rd dispensing device is used for sending information to global node fault Quick recovery device；
E) fault recovery controls device and is used for controlling video distribution network node server and realizes malfunctioning node and be switched fast
Journey.
7. the network equipment in a Video Distribution Network, it is characterised in that comprise the global node fault described in claim 5
Node failure quick recovery agency device described in Quick recovery device or claim 6.
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| CN201110392550.9A CN103139661B (en) | 2011-12-01 | The redundancy protected method of a kind of video distribution network node server and device |
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| CN101068186A (en) * | 2007-06-05 | 2007-11-07 | 华为技术有限公司 | Customer end node network topological structure method and stream media distributing system |
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