CN101997720B - The method of trans-regional monitoring flow program request and video management server - Google Patents
The method of trans-regional monitoring flow program request and video management server Download PDFInfo
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Abstract
A kind of method that the invention discloses trans-regional monitoring flow program request, the method includes: the order request that in video management server reception one's respective area, monitor client sends, the main line weights of the trans-regional monitoring flow of computation requests also store, and the main line weights of described trans-regional monitoring flow become big with the increase of a broadcasting user；Described video management server judges that the bandwidth of the trans-regional monitoring flow of described request and main line have monitored the bandwidth sum of flow and whether reached threshold value；Judged result is no, and described video management server sends described order request to described opposite end video management server；Otherwise, described video management server sends the order request of monitoring flow according to the height of main line weights to described opposite end video management server.In the present invention, in the case of main line monitoring flow bandwidth reaches fixed value, make full use of main line monitoring flow bandwidth.
Description
Technical field
The present invention relates to the communications field, particularly relate to method and the video management server of a kind of trans-regional monitoring flow program request.
Background technology
Along with network technology and the development of IP technology, IP based on IP technology and network technology monitoring technology is rapidly developed.IP monitoring has become as the main flow monitoring field at present, and the most trans-regional IP monitoring system is developed rapidly.Trans-regional IP monitoring system as shown in Figure 1, region A and B is respectively provided with a set of regional monitoring system, every suit regional monitoring system includes VM (Video Management, video management server), MS (Media Server, media server), EC (Encoder, video encoder) and VC (Video Client, videoconference client), connected by main line between region, divide in A and B of region and include trunk route device R1 and R2.EC acquisition monitoring image, encodes analog video signal according to specified format, appointment code check, can be transferred to client in the way of unicast or multicast.VC can be with the monitoring flow of EC in program request one's respective area, it is also possible to the monitoring flow of trans-regional program request EC.
Monitoring flow is by the fixed value that can only take the bandwidth being monitoring assignment of traffic in advance maximum during primary transmission at present, and the flow exceeding this fixed value cannot pass through primary transmission.VM stores the service priority of each user, and when main line flow bandwidth reaches fixed value, VM controls the monitoring flow of trunk bandwidth prioritised transmission height service priority.
Of the prior art trans-regional monitoring flow on-demand process is described below, and shown in Fig. 1, as a example by the monitoring flow of the EC2 in VC1 requesting area B in the A of region, this process includes:
1, VC1 sends the monitoring order request of EC2 to VM1；
2, VM1 judges whether current main line flow bandwidth reaches fixed value, if otherwise sending this order request to VM2；If it is, VM1 abandons the monitoring flow that low service priority is corresponding, send this order request to VM2；
3, VM2 monitors flow according to order request to EC2 request；
4, EC2 will monitor flow to MS2 send, MS2 to monitoring flow be packaged, after encapsulation monitoring flow in carry monitoring flow identification information DSCP value, this value is 32 at present；
5, MS2 will monitor flow and send to R2；
6, according to the DSCP value in monitoring flow, R2 identifies that this flow, for monitoring flow, sends monitoring flow according to the monitoring flow bandwidth of configuration to R1；
7, R1 will monitor flow and send to MS1, then will be forwarded to VC1 by MS1.
In the trans-regional monitoring flow demand scheme that prior art provides, there is following situation:
The priority monitoring flow of EC2 that has been VC1 user's program request of 1 (assuming that this priority is minimum), main line monitoring flow occupied bandwidth reaches fixed value, and the monitoring flow of this EC2 only has VC1 program request；Now, in the A of region same-priority be 1 VC2, VC3, VC4 user wish the monitoring flow of EC3 in requesting area B, but owing to main line monitoring flow bandwidth is the fullest, program request failure.Therefore, existing trans-regional monitoring flow demand scheme cannot make main line monitoring flow bandwidth reasonably be made full use of.
Summary of the invention
The invention provides method and the video management server of a kind of trans-regional monitoring flow program request, in the case of main line monitoring flow bandwidth reaches fixed value, make full use of main line monitoring flow bandwidth.
A kind of method that the invention provides trans-regional monitoring flow program request, it is applied to include the IP monitoring system in different monitoring region, video management server, monitor client and exchange of media server is included in each monitoring region, being connected by trunk route device between each monitoring region, the method includes:
Video management server receives the order request that monitor client sends in one's respective area, and the main line weights of the trans-regional monitoring flow of computation requests also store, and the main line weights of described trans-regional monitoring flow become big with the increase of a broadcasting user；
Described video management server judges that the bandwidth of the trans-regional monitoring flow of described request and main line have monitored the bandwidth sum of flow and whether reached threshold value；
If it is judged that be no, described video management server sends described order request to described opposite end video management server；
If it is judged that be yes, described video management server sends the order request of monitoring flow according to the height of main line weights to described opposite end video management server.
Wherein, described trans-regional monitoring flow is the monitoring flow of current primary transmission and current trunk bandwidth is not transmitted but the time difference of the time of reception of its order request and current time monitoring flow in preset range.
The main line weights of the trans-regional monitoring flow of computation requests include:
Search the main line weights corresponding with the trans-regional monitoring flow of described request of storage；
Calculate main line weights according to described order request, calculated main line weights are sued for peace with searching the main line weights obtained, obtains the current main line weights of described trans-regional monitoring flow.
The order request that described video management server sends monitoring flow according to the height of main line weights to described opposite end video management server includes:
Described video management server preferentially sends the order request of the high monitoring flow of main line weights, until the bandwidth of main line monitoring flow reaches threshold value.
The order request that described video management server sends monitoring flow according to the height of main line weights to described opposite end video management server includes:
Described video management server arranges the priority value of monitoring flow according to main line weights order from high to low, using described priority value to distinguish high priority and monitor flow and low priority monitoring flow, described high priority monitors the bandwidth of flow and monitors the threshold value of flow bandwidth less than or equal to main line；
Described video management server sends the order request carrying priority value to described opposite end video management server.
The priority value that described video management server arranges monitoring flow according to main line weights order from high to low includes: when the main line weights of newly-increased monitoring flow are less than the main line weights of all high priorities monitoring flow, the priority value arranging newly-increased monitoring flow is low value；When the main line weights having high priority monitoring flow are less than the main line weights of newly-increased monitoring flow: on the premise of ensureing high priority monitoring flow bandwidth and being less than or equal to described threshold value, the priority value arranging newly-increased monitoring flow is high level, and less than the priority value of the monitoring flow of the high priority of the main line weights of newly-increased monitoring flow, original main line weights are set to low value；
When the priority value of former high priority monitoring flow is changed to low value, described video management server sends the priority value Notification of Changes of correspondence monitoring flow to described opposite end video management server, updates the priority value that correspondence monitoring flow carries.
The present invention provides a kind of video management server, it is applied to include the IP monitoring system in different monitoring region, described video management server, monitor client and exchange of media server is included in each monitoring region, being connected by trunk route device between each monitoring region, described video management server includes:
Receive unit, the order request of the trans-regional monitoring flow that monitor client sends in receiving one's respective area；
Computing unit, for calculating the main line weights of the trans-regional monitoring flow of monitor client request；
Memory element, for storing the trans-regional monitoring flow of described request and the corresponding relation of main line weights, these main line weights become big with the increase of the some broadcasting user of described trans-regional monitoring flow；
Judging unit, for judging that bandwidth and the main line of the trans-regional monitoring flow of described request have monitored whether the bandwidth sum of flow reaches the threshold value of main line monitoring flow bandwidth；
Transmitting element, for when described judged result is no, sends described order request to described opposite end video management server；When described judged result is for being, send the order request of monitoring flow to described opposite end video management server according to the height of main line weights；
Wherein, described trans-regional monitoring flow is the monitoring flow of current primary transmission and current trunk bandwidth is not transmitted but the time difference of the time of reception of its order request and current time monitoring flow in preset range.
Described computing unit is additionally operable to: search the main line weights corresponding with the trans-regional monitoring flow of described request of storage；Calculate main line weights according to described order request, calculated main line weights are sued for peace with searching the main line weights obtained, obtains the current main line weights of described trans-regional monitoring flow.
Described transmitting element is additionally operable to: the preferential order request sending the high monitoring flow of main line weights, until the bandwidth of main line monitoring flow reaches threshold value.
Also include that priority arranges unit, for arranging the priority value of monitoring flow according to main line weights order from high to low, using described priority value to distinguish high priority and monitor flow and low priority monitoring flow, described high priority monitors the bandwidth of flow and monitors the threshold value of flow bandwidth less than or equal to main line；Described transmitting element is additionally operable to: send the order request carrying priority value to described opposite end video management server.
Described priority arranges unit and is additionally operable to: when the main line weights of newly-increased monitoring flow are less than the main line weights of all high priorities monitoring flow, the priority value arranging newly-increased monitoring flow is low value；When the main line weights having high priority monitoring flow are less than the main line weights of newly-increased monitoring flow: on the premise of ensureing high priority monitoring flow bandwidth and being less than or equal to described threshold value, the priority value arranging newly-increased monitoring flow is high level, and less than the priority value of the monitoring flow of the high priority of the main line weights of newly-increased monitoring flow, original main line weights are set to low value；
Described transmitting element is additionally operable to: when the priority value of former high priority monitoring flow is changed to low value, described video management server sends the priority value Notification of Changes of correspondence monitoring flow to described opposite end video management server；
Described reception unit is additionally operable to: receives the priority value Notification of Changes monitoring flow that the video management server in monitoring region, opposite end sends, determines the corresponding relation of the priority value after change and monitoring flow.
Compared with prior art, the present invention at least has the advantage that
In the present invention, video management server sends the order request of monitoring flow according to the main line weights of monitoring flow, the main line weights wherein monitoring flow become big with the increase of a broadcasting user, thus in the case of main line flow is full, same priority is monitored to the order request of flow, video management server, by the order request of monitoring flows many for preferential sending point broadcasting user quantity, improves the service efficiency of main line.
Accompanying drawing explanation
Fig. 1 is the networking mode schematic diagram of the IP monitoring system of prior art mid span area；
Fig. 2 is the schematic flow sheet of the method for the trans-regional monitoring flow program request that the embodiment of the present invention one provides；
Fig. 3 is the schematic flow sheet of the method for the trans-regional monitoring flow program request that the embodiment of the present invention two provides；
Fig. 4 and Fig. 5 is the structural representation of the video management server that the embodiment of the present invention three provides.
Detailed description of the invention
A kind of method that the invention provides trans-regional monitoring flow program request, VM storage monitoring flow and the corresponding relation of main line weights, the main line weights of each of which monitoring flow increase with the increase of the some broadcasting user of this monitoring flow.VM receives the order request of the trans-regional monitoring flow that VC sends, obtain the main line weights of monitoring flow corresponding to this order request, if the monitoring flow bandwidth that this order request is corresponding and threshold value that is that monitored flow bandwidth and that reach main line monitoring flow bandwidth, then send order request according to the height of the main line weights of monitoring flow to opposite end VM.
Due in the method, VM sends order request according to the height of the main line weights of monitoring flow, and the main line weights monitoring flow are to increase with the increase putting broadcasting user of this monitoring flow, therefore when the user that program request arbitrarily monitors flow increases, the main line weights of this monitoring flow will increase, VM not only considers the service priority of user when sending the order request of monitoring flow, it is also contemplated that the quantity of the some broadcasting user of monitoring flow, improves the utilization rate of main line monitoring flow bandwidth.
The method introducing the trans-regional monitoring flow program request that the present invention provides below in conjunction with specific embodiment.
Embodiment one
The embodiment of the present invention one provides a kind of method of trans-regional monitoring flow program request, and in conjunction with the scene shown in Fig. 1, the method is as in figure 2 it is shown, comprise the following steps:
Step 201, VM1 receives the order request of the trans-regional monitoring flow that VC1 sends.
Step 202, VM1 judges that corresponding monitoring flow bandwidth and the main line of this order request has monitored flow bandwidth and whether reaches main line and monitor the threshold value of flow bandwidth；If it is judged that be no, perform step 203；Otherwise, step 204 is performed.
Step 203, VM1 sends the order request of above-mentioned trans-regional monitoring flow to VM2.
Step 204, VM1 obtains the main line weights of trans-regional monitoring flow.
Concrete, storage monitoring flow and the corresponding relation of main line weights in VM1, and the main line weights of monitoring flow become big with the increase of the some broadcasting user of this monitoring flow, this monitoring flow is the monitoring flow of current primary transmission and current trunk bandwidth is not transmitted but the time difference of the time of reception of its order request and current time monitoring flow in preset time range, this preset time range can be arranged the most flexibly, such as, be set to 3 minutes.VM1 can obtain the main line weights of monitoring flow according to the service priority of the monitoring bandwidth of flow, each user, and concrete mode includes: Φ=B* ∑ (Ki), wherein, Φ is the main line weights of monitoring flow, and B is the bandwidth of monitoring flow, KiCustomer service priority for each this flow of program request.Such as, there is a cross-domain monitoring flow, the a width of 2M of its code stream band, the service priority of each point broadcasting user is respectively 1,2,2,3,4 (numerical value is big represents priority height), then the main line weights of this monitoring flow are: Φ=2* (1+2+2+3+4)=24.
VM1 can also obtain the main line weights of monitoring flow according to the service priority of each user, and concrete mode includes: Φ=∑ (Ki), wherein, Φ is the main line weights of monitoring flow, KiCustomer service priority for each this flow of program request.Such as, having a cross-domain monitoring flow, the service priority of each point broadcasting user is respectively 1,2,2,3,4 (numerical value is big represents priority height), then the main line weights of this monitoring flow are: Φ=1+2+2+3+4=12.
After VM1 receives the order request of trans-regional monitoring flow, VM1 searches whether to store the main line weights that this trans-regional monitoring flow is corresponding, if it has, the main line weights then using this storage and the main line weights summation obtained according to order request, as the main line weights of trans-regional monitoring flow；The main line weights corresponding without storing this trans-regional monitoring flow, then the main line weights obtained according to order request are the main line weights of trans-regional monitoring flow.The main line weights of the trans-regional monitoring flow that VM1 storage obtains and the corresponding relation of trans-regional monitoring flow.
Step 205, VM1 sends order request according to the height of the main line weights of monitoring flow to VM2.
For convenience, it is assumed that above-mentioned monitoring flow is the order request that S, VM1 preferentially send that the high monitoring flow of main line weights is corresponding.If main line weights are higher than bandwidth and the bandwidth of S of the monitoring flow of the main line weights of S and exceed threshold value, then VM1 does not sends above-mentioned order request to VM2.Otherwise, VM1 sends above-mentioned order request to VM2.
It may be noted that VM1 needs to obtain the main line weights of trans-regional monitoring flow, and stores the corresponding relation of these weights and trans-regional monitoring flow for VM1 in step 203 when VM2 sends the order request of trans-regional monitoring flow.
Embodiment two
The embodiment of the present invention two provides a kind of method of trans-regional monitoring flow program request, and monitor client sends the live order request of trans-regional monitoring flow.In conjunction with the scene shown in Fig. 1, in this embodiment, VM1 is when VM2 sends the order request of monitoring flow, in order request, carry priority value (include that low value is in high level, mark low priority monitors flow and monitors flow with high priority respectively) it is used for distinguishing high priority monitoring flow and low priority monitoring flow, high-priority traffic preferentially uses trunk bandwidth to transmit.In the present embodiment, this priority value is introduced as a example by special DSCP value, when the corresponding relation of special DSCP value with monitoring flow is sent the monitoring flow forwarding EC2 transmission to MS2, MS2 by VM2, and the special DSCP value of encapsulation monitoring flow.After R2 receives the monitoring flow that MS2 sends, send monitoring flow according to the special DSCP value difference of monitoring flow.
Concrete, as a example by the monitoring flow of VC1 request program request EC2, as it is shown on figure 3, the method includes:
Step 301, VM1 receives the order request to EC2 monitoring flow that VC1 sends.
Step 302, VM1 judges threshold value that is that the bandwidth of EC2 monitoring flow has monitored flow bandwidth with main line and that whether reach main line monitoring flow bandwidth；If it is judged that be no, perform step 303；Otherwise, step 304 is performed.
Step 303, VM1 sends the order request of EC2 monitoring flow to VM2, carries the DSCP value of mark high priority monitoring flow in this order request.This DSCP value for example, 32.
Step 304, VM1 obtains the main line weights of EC2 monitoring flow.
Step 305, the main line weights of main line weights and high priority monitoring flow that EC2 is monitored flow by VM1 compare, if the main line weights of EC2 monitoring flow are minimum, then perform step 306；Otherwise perform step 307.
Concrete, the corresponding relation of VM1 storage high priority monitoring flow, the bandwidth of monitoring flow and main line weights is (for ease of describing, hereinafter referred to as high-priority queue), and the corresponding relation (for ease of describing, hereinafter referred to as Low Priority Queuing) of low priority monitoring flow, the bandwidth of monitoring flow and main line weights.Wherein, in the monitoring flow of VM1 storage and the corresponding relation of main line weights, monitoring flow can be the monitoring flow of current primary transmission, it is also possible to do not transmit for current trunk bandwidth but the time difference of the time of reception of its order request and current time monitoring flow in preset time range.Assuming that the maximum of main line monitoring flow is 20M, then high-priority queue is as shown in table 1, monitoring flow bandwidth and less than or equal to 20M.Low Priority Queuing is as shown in table 2.
Table 1
Table 2
Step 306, the main line weights of VM1 storage EC2 monitoring flow and the corresponding relation of EC2 monitoring flow, send the order request of EC2 monitoring flow to VM2, this order request is carried the DSCP value of mark low priority monitoring flow.This DSCP value for example, 0.
Step 307, VM1 searches the main line weights monitoring flow less than the main line weights of EC2 monitoring flow in high-priority queue, the priority of the monitoring flow found is set to low priority, and the priority that EC2 monitors flow is set to high priority.
Concrete, it is assumed that former storage table 1 and the high-priority queue shown in table 2 and Low Priority Queuing in VM1.If now VM1 receives the order request of H monitoring flow, the then band a width of 1.5 of H monitoring flow, after a newly-increased program request person, main line weights become 13.5.VM1 compares in high-priority queue from bottom to top, first compares with G flow, although the weights of G flow are relatively low, but owing to bandwidth is inadequate, after displacement, high priority monitoring flow total bandwidth is more than 20M, so G flow can not be replaced；Continuing up and compare, the main line weights of H monitoring flow are higher than the main line weights that F flows, and bandwidth is suitable, then the DSCP value that H flows is revised as 32, and the DSCP value that F flows is revised as 0, and table 1 is updated to table 3, and table 2 is updated to table 4.
Table 3
Table 4
If now the main line weights of the I flow in table 4 are raised to 33, VM1 replaces out two flows of G and H (although I flow 3M is more than summation 2.5M of G and H flow by using I flow, but after Ti Huaning, high priority monitoring flow total flow is not above 20M), table 3 is updated to table 5, and table 4 is updated to table 6.
Table 5
Table 6
Step 308, VM1 sends the order request of EC2 monitoring flow to VM2, carries the DSCP value of mark high priority monitoring flow in this order request.
It is to be appreciated that VM1 also sends the DSCP value Notification of Changes of the former high priority monitoring flow replaced by EC2 monitoring flow to VM2, wherein carry the DSCP value after former high priority monitoring flow is changed to low priority monitoring flow.
Step 309, VM2 sends the corresponding relation of monitoring flow and DSCP value to MS2, MS2 send to R2 after being packaged monitoring flow.Wherein, it is encapsulated into monitoring in flow by the specific DSCP value of monitoring flow when MS2 is packaged.
Special, after VM2 receives the DSCP value Notification of Changes that VM1 sends, know the monitoring flow that DSCP value changes, and the DSCP value after the change of this monitoring flow is sent to MS2, MS2 according to DSCP value this monitoring flow of encapsulation after this change.
Step 310, R2 obtains the DSCP value of monitoring flow, sends monitoring flow according to DSCP value.
Concrete, R2 identifies DSCP value and the DSCP value of low priority monitoring flow of high priority monitoring flow.When main line remaining bandwidth be enough to send all monitoring flows, send all monitoring flows by main line；When main line remaining bandwidth is not enough to send all monitoring flows, R2 preferentially sends high priority monitoring flow according to DSCP value.
In the embodiment of the present invention, VM1 can arrange DSCP1 value and DSCP2 value in the order request of EC2 monitoring flow, wherein DSCP1 value mark customer service priority, for the highest service priority in the service priority of all users of this monitoring flow of program request, DSCP2 value the most above-mentioned DSCP value.DSCP1 value and DSCP2 value are all sent when VM2 sends the order request of monitoring flow and notify, to EC2DSCP1 value, to notify to the DSCP2 value of MS2EC2 monitoring flow to VM2, VM2 by VM1.Writing DSCP1 value in the monitoring flow that EC2 sends, this DSCP1 value preferentially can be forwarded as this monitoring flow flow forwarding priority basis for estimation in one's respective area, such as the monitoring flow that DSCP1 value is big in region.After MS2 receives the monitoring flow that EC2 sends, Reseal monitoring flow, it is encapsulated into monitoring flow by DSCP2 value replacement DSCP1 value, R2 preferentially sends high-priority queue according to DSCP2 value.
In the embodiment of the present invention, the main line weights that can be pre-configured with monitoring video flow are minimum, when user's trans-regional program request monitoring video flow, just send monitoring video flow when main line monitoring flow bandwidth has remaining.
By the method using the embodiment of the present invention to provide, video management server sends the order request of monitoring flow according to the main line weights of monitoring flow, the main line weights of monitoring flow become big with the increase of a broadcasting user, thus in the case of main line flow is full, same priority is monitored to the order request of flow, video management server, by the order request of monitoring flows many for preferential sending point broadcasting user quantity, improves the service efficiency of main line.
Embodiment three
Conceive based on the same or analogous technology of above-described embodiment one and two, the embodiment of the present invention three provides a kind of video management server, it is applied to include the IP monitoring system in different monitoring region, described video management server, monitor client and exchange of media server is included in each monitoring region, connected by trunk route device between each monitoring region, as shown in Figure 4, described video management server includes:
Receive unit 11, the order request of the trans-regional monitoring flow that monitor client sends in receiving one's respective area；
Computing unit 12, for calculating the main line weights of the trans-regional monitoring flow of monitor client request；
Memory element 13, for storing the trans-regional monitoring flow of described request and the corresponding relation of main line weights, these main line weights become big with the increase of the some broadcasting user of described trans-regional monitoring flow；
Judging unit 14, for judging that bandwidth and the main line of the trans-regional monitoring flow of described request have monitored whether the bandwidth sum of flow reaches the threshold value of main line monitoring flow bandwidth；
Transmitting element 15, for when described judged result is no, sends described order request to described opposite end video management server；When described judged result is for being, send the order request of monitoring flow to described opposite end video management server according to the height of main line weights.
Described computing unit 12 is additionally operable to: search the main line weights corresponding with the trans-regional monitoring flow of described request of storage；Calculate main line weights according to described order request, calculated main line weights are sued for peace with searching the main line weights obtained, obtains the current main line weights of described trans-regional monitoring flow.
Described transmitting element 15 is additionally operable to: the preferential order request sending the high monitoring flow of main line weights, until the bandwidth of main line monitoring flow reaches threshold value.
As shown in Figure 5, this video management server also includes that priority arranges unit 16, for arranging the priority value of monitoring flow according to main line weights order from high to low, using described priority value to distinguish high priority and monitor flow and low priority monitoring flow, described high priority monitors the bandwidth of flow and monitors the threshold value of flow bandwidth less than or equal to main line；Described transmitting element 15 is additionally operable to: send the order request carrying priority value to described opposite end video management server.
Described priority arranges unit 16 and is additionally operable to: when the main line weights of newly-increased monitoring flow are less than the main line weights of all high priorities monitoring flow, the priority value arranging newly-increased monitoring flow is low value；When the main line weights having high priority monitoring flow are less than the main line weights of newly-increased monitoring flow: on the premise of ensureing high priority monitoring flow bandwidth and being less than or equal to described threshold value, the priority value arranging newly-increased monitoring flow is high level, original main line weights are set to low value less than the priority value of the monitoring flow of the high priority of the main line weights of newly-increased monitoring flow, such as, if after newly-increased monitoring flow replaces the high priority monitoring flow that main line weights are minimum, high priority monitors the bandwidth of flow and less than or equal to described threshold value, the priority value then arranging newly-increased monitoring flow is high level, the priority value of the monitoring flow being replaced is low value；If after newly-increased monitoring flow replaces the high priority monitoring flow that main line weights are minimum, the bandwidth of high priority monitoring flow and more than described threshold value, then it is replaced according to main line weights other high priorities of sequential search monitoring flow from low to high；If searching unsuccessfully, then obtain the main line weights sum multiple high priorities monitoring flow less than the main line weights of newly-increased monitoring flow, if after newly-increased monitoring flow replaces the plurality of high priority monitoring flow, high priority monitors the bandwidth of flow and less than or equal to described threshold value, the priority value then arranging newly-increased monitoring flow is high level, and the priority value of the multiple monitoring flows being replaced is low value.
Described transmitting element 15 is additionally operable to: when the priority value of former high priority monitoring flow is changed to low value, described video management server sends the priority value Notification of Changes of correspondence monitoring flow to described opposite end video management server；Described reception unit 11 is additionally operable to: receives the priority value Notification of Changes monitoring flow that the video management server in monitoring region, opposite end sends, determines the corresponding relation of the priority value after change and monitoring flow.
In the embodiment of the present invention, video management server sends the order request of monitoring flow according to the main line weights of monitoring flow, the main line weights wherein monitoring flow become big with the increase of a broadcasting user, thus in the case of main line flow is full, same priority is monitored to the order request of flow, video management server, by the order request of monitoring flows many for preferential sending point broadcasting user quantity, improves the service efficiency of main line.
Through the above description of the embodiments, those skilled in the art is it can be understood that can add the mode of required general hardware platform by software to the present invention and realize, naturally it is also possible to by hardware, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, the part that prior art is contributed by technical scheme the most in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module or flow process in accompanying drawing are not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in the device in embodiment can describe according to embodiment to carry out being distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.The module of above-described embodiment can merge into a module, it is also possible to is further split into multiple submodule.
The several specific embodiments being only the present invention disclosed above, but, the present invention is not limited to this, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (1)
1. a method for trans-regional monitoring flow program request, the method be applied to include the first monitoring region and
The IP monitoring system in the second monitoring region, the first monitoring region includes the first video management server VM1
With the first videoconference client VC1, the second monitoring region includes the second video management server VM2 and second
Video encoder EC2, is connected by trunk route device between the first monitoring region and the second monitoring region,
It is characterized in that, the method includes:
Step 301, VM1 receives the order request to EC2 monitoring flow that VC1 sends；
Step 302, VM1 judge bandwidth and the main line of EC2 monitoring flow monitored flow bandwidth and
Whether reach the threshold value of main line monitoring flow bandwidth；If it is judged that be no, perform step 303；Otherwise,
Perform step 304；
Step 303, VM1 sends the order request of EC2 monitoring flow to VM2, in this order request
Carrying the DSCP value of mark high priority monitoring flow, flow process terminates；
Step 304, VM1 obtains the main line weights of EC2 monitoring flow；
Step 305, EC2 is monitored the main line weights of flow and the main line of high priority monitoring flow by VM1
Weights carry out this relatively, if the main line weights of EC2 monitoring flow are minimum, then perform step 306；Otherwise
Perform step 307；
Step 306, the main line weights of VM1 storage EC2 monitoring flow and the corresponding pass of EC2 monitoring flow
System, the order request sending EC2 monitoring flow to VM2, this order request is carried mark low priority
The DSCP value of monitoring flow；
Step 307, VM1 searches main line weights doing less than EC2 monitoring flow in high-priority queue
The monitoring flow of line weights, is set to low priority, by EC2 by the priority of the monitoring flow found
The priority of monitoring flow is set to high priority；
Step 308, VM1 sends the order request of EC2 monitoring flow to VM2, in this order request
Carry the DSCP value of mark high priority monitoring flow；VM1 also sends by EC2 monitoring stream to VM2
The DSCP value Notification of Changes of the former high priority monitoring flow that amount is replaced, wherein carries former high priority prison
DSCP value after flow control quantitative change more low priority monitoring flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010538859.XA CN101997720B (en) | 2010-11-11 | 2010-11-11 | The method of trans-regional monitoring flow program request and video management server |
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