CN101106515B - Service quality guarantee method and system in multicast network - Google Patents
Service quality guarantee method and system in multicast network Download PDFInfo
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Abstract
The invention discloses a service quality guarantee method in multicast network and the system thereof; wherein, the method includes: a resources management service delivers the service quality resources request information corresponding to the multicast flow request service quality resources to the network edge equipment near the user terminal on the bearing layer of the multicast network. Utilize the multicast management protocol/multicast route protocol, and the network edge equipment pushes upward to the network border equipment of bearing network layer by layer. Judge whether the network equipment on each layer is the replication point equipment of the multicast flow, guarantee the service quality of corresponding interface, send the message of joining in multicast group to upper layer of network equipment, dynamically establish the multicast route of multicast group and guarantee the service quality of the multicast route. The invention can realize the service quality guarantee of multicast route of the multicast group corresponding to a multicast flow with simpler mode in the multicast network in the situation of no change on the multicast protocol.
Description
Technical field
The present invention relates to network communications technology field, especially relate to method for ensuring service quality and system in a kind of multicast network.
Background technology
As shown in Figure 1, in the present network based on professional or the service quality used (Quality of Service QoS) guarantees the schematic diagram of system, and wherein, dotted line represents in the point-to-point link communication, and once typical service quality guarantees to comprise the process that realizes:
At first, user terminal 110 is communicated by letter with Control Server 120 by high-level signaling, and Control Server 120 obtains user terminal 110 based on specific transactions or use needed service quality resource parameter;
Secondly, Control Server 120 to resource management server 130 request user terminals 110 based on specific transactions or use needed Internet resources;
Once more, resource management server 130 is by judging conventional network resources and the signatory available resources of user, if resource request can be admitted, each network element (comprising aggregation networks 141, region network 142 and core network 143) of then controlling on the bearer channel carries out resource reservation or enforcement.Wherein, resource management server 130 can calculate the information that service quality resource guarantees the path according to the bearer network topology information of grasping.
Need to prove, in Fig. 1, Control Server 120 is above all professional controls of bearer network and the Application Function of using general designation, can be a service control server or application server, for the IP Multimedia System network, Control Server 120 is corresponding to the P-CSCF network entity.
Yet, along with the continuous expansion of computer network scale, the continuous development of large-scale interference networks scale, route technology becomes key component gradually in network technology, and router also becomes the important network equipment thereupon.Router is operated in the 3rd layer in the osi model, i.e. network layer, and router utilizes the logic network address (being the IP address) of network layer definition to distinguish different networks, realizes the interconnection of network and keeps the independence of each network.
Especially adopt independent multicast agreement (Protocol Independent Multicast, PIM) router is realized multicast network, realize that by multicast the network mid point transmits to the efficient data of multiple spot, effectively conserve network bandwidth, reduce offered load, the multi-point communication network that multicast network is fit to the most, extensively using should be in LMCS fields such as multimedia conferencing, multi-media network TV, remote teaching, stock information transmission in real time.
When considering (wherein at two or three layers, in osi model, the second layer is a data link layer, the 3rd layer is network layer) when multicast network realizes that service quality guarantees, owing in multicast network, there is not service quality assurance technology at present, if the admittance control technology that present service quality shown in Figure 1 is guaranteed is applied to multicast network, then need carry out the calculating that unified service quality guarantees the path, and pointwise issues the service quality control information by resource management server 130.
Therefore, if the admittance control technology that existing service quality is guaranteed is applied to multicast network, when specific implementation, will have following difficulty:
On the one hand, because resource management server need safeguard the positional information of all multicast group in multicast network, carrying out the calculating that unified service quality guarantees the path, and calculate quite complicated;
On the other hand, when the route in the multicast network changes, multicast path in the multicast network can change, resource management server need detect the variation of multicast path at any time, and recomputate a service quality according to the topology information of the multicast network of grasping and data on flows information and guarantee the path, with the path that guarantees multicast with serve the consistent of quality assurance path, again relevant service quality resource parameter is issued to the network node that new service quality guarantees the path correspondence, realizes that this process complexity and efficient are lower.
More than the two aspect factors admittance control technology that directly caused existing service quality to guarantee in multicast network, almost can't realize.Therefore, we are necessary to develop a kind of method for ensuring service quality or system at multicast network, realize the consistent of multicast path and service quality assurance path in comparatively simple mode, and when the route of multicast network changes, can realize comparatively apace that the service quality of new multicast path guarantees.
Summary of the invention
The objective of the invention is to propose method for ensuring service quality and system in a kind of multicast network, the multicast path and the service quality that solve the multicast group of a multicast data flow correspondence in the multicast network guarantee that the path is difficult to the technical problem of unification, also promptly are difficult in multicast network the technical problem that the multicast path to the multicast group of a multicast data flow correspondence carries out the service quality assurance.
For addressing the above problem, the present invention discloses the method for ensuring service quality in a kind of multicast network, and key is to comprise the steps:
A. resource management server is issued to the service quality resource request message of multicast data flow request service quality resource correspondence the bearing bed of multicast network;
B. the bearing bed of multicast network utilizes multicast routing protocol and/or multicast routing protocol, dynamically sets up the multicast path of the multicast group of corresponding described multicast data flow, and the multicast path of described multicast group is carried out the service quality assurance.
Among the described step a, described resource management server is issued to described service quality resource request message in the bearing bed of multicast network the network edge device near user terminal;
Described step b comprises that described network edge device receives described service quality resource request message.
Described step b specifically comprises the steps:
B1. described network edge device judges whether it is the copy-point equipment of described multicast data flow;
B2. if described network edge device is the copy-point equipment of described multicast data flow, then described network edge device carries out service quality and guarantees;
B3. if described network edge device is not the copy-point equipment of described multicast data flow, then described network edge device carries out after the service quality assurance, upstream device sends and adds the multicast path that the multicast group message is set up the multicast group of corresponding described multicast data flow, and the copy-point equipment of described multicast data flow carries out service quality and guarantees, wherein, described upstream equipment is to the network equipment of edge network gateway direction until network boundary from described network edge device.
Among the described step b1, described network edge device is inquired about the record of whether preserving described multicast group on this network edge device, if preserve the record of described multicast group, show that then this network edge device is the copy-point equipment of described multicast data flow, if have, among the then described step b2, described network edge device carries out the service quality assurance according to the record of described multicast group to described multicast group.
Among the described step b3, described network edge device also comprises the steps: after described upstream equipment sends described adding multicast group message
B31. described upstream equipment receives described adding multicast group message, judges whether the copy-point equipment into described multicast data flow;
B32. if described upstream equipment is the copy-point equipment of described multicast data flow, then described upstream equipment carries out service quality and guarantees;
B33. if described upstream equipment is not the copy-point equipment of described multicast data flow, then described upstream equipment carries out after the service quality assurance, send to upstream equipment more and to add the multicast path that the multicast group message is set up the multicast group of corresponding described multicast data flow, and the copy-point equipment of described multicast data flow carries out service quality and guarantees.
Among the described step b33, after more upstream equipment sends adding multicast group message, also comprise the steps:
Described upstream equipment obtains corresponding described multicast data flow requested service quality resource parameters to described resource management server inquiry.
Among the described step b33, add the network boundary equipment that the multicast group message arrives the bearing bed of described multicast network, then specifically comprise the steps: if send to upstream equipment more
If described network boundary equipment sends adding multicast group message according to preestablishing to other network domains; Perhaps: described network boundary equipment will not find the information of the copy-point equipment of described multicast group to send to described resource management server, be set up the multicast path of the multicast group of corresponding described multicast data flow to the described multicast group data stream of other network application by described resource management server.
Described step of carrying out the service quality assurance specifically comprises:
Utilize corresponding described multicast data flow requested service quality resource parameters that the forwarding port of described multicast group is carried out resource reservation;
And the information of described forwarding port is added in the forwarding list of described multicast group.
The step of described resource reservation comprises the bandwidth of the described forwarding port of preassignment.
Carry out also comprising after service quality guarantees as the network edge device of the copy-point equipment of described multicast data flow:
Described copy-point equipment sends the resource reservation success message to described resource management server.
Described resource reservation success message comprises the user totem information of described user terminal, or described adding multicast group message comes source port information;
Described user ID is the IP address of described user terminal, or the sign of described user terminal on bearer network, or described resource management server sign that described user terminal is managed.
Described service quality resource request message comprises that port that QoS parameter information, user terminal adheres at described network edge device is or/and the address information of logical channel identifier information and multicast group.
Described adding multicast group message is joining message of Internet igmpinternet, or the joining message of multicast routing protocol, and described adding multicast group message can carry the user totem information of described user terminal.
Correspondingly, the service quality that the present invention also discloses in a kind of multicast network guarantees system, and key is to comprise:
Resource management server is used for the service quality resource request message of multicast data flow request service quality resource correspondence is issued to network edge device;
Network edge device is used to receive described service quality resource request message, and described multicast group is carried out the service quality assurance.
System of the present invention also comprises:
Upstream equipment, be used for when described network edge device or its upstream device are not preserved the record of multicast group of corresponding described service quality resource request message, receive the adding multicast group message that described network edge device or its upstream device send, and carry out the service quality assurance according to the QoS parameter information of described multicast group.
Described service quality guarantees to utilize corresponding described multicast data flow requested service quality resource parameters that the forwarding port of described multicast group is carried out resource reservation, and the information of described forwarding port is added in the forwarding list of described multicast group.
Described adding multicast group message is joining message of Internet igmpinternet, or the joining message of multicast routing protocol.
Described adding multicast group message carries the user totem information of described user terminal;
Described user ID is the IP address of described user terminal, or the sign of described user terminal on bearer network, or described resource management server sign that described user terminal is managed.
Compared with prior art, the present invention has following beneficial effect:
1. the present invention combines and carries out resource and admission control technology that service quality guarantees and the group broadcast protocol technology in the multicast network in the existing network, multicast protocol is not being done under the situation of any change, utilize multicast routing protocol, in better simply mode, the multicast path of multicast group of a multicast data flow correspondence and the unification that service quality guarantees the path have been realized, dynamically set up the multicast path of the multicast group of corresponding described multicast data flow at the bearing bed of multicast network, and realize service quality assurance simultaneously the multicast path of described multicast group;
2. the present invention guarantees the consistent of path according to the multicast path that multicast routing protocol is finished the multicast group of a multicast data flow correspondence with service quality fully, need not resource management server the pahtfinder hard that carries out service quality in the multicast network and guarantee is calculated and route maintenance.
Description of drawings
Fig. 1 is the schematic diagram that a kind of service quality guarantees system in the existing network.
Fig. 2 is the schematic flow sheet of the method for ensuring service quality in the multicast network that discloses of the present invention.
Fig. 3 is the schematic diagram that the service quality in the multicast network that discloses of the present invention guarantees system.
Embodiment
See also shown in Figure 2ly, be the schematic flow sheet of the method for ensuring service quality in the multicast network that the present invention discloses.
In multicast network, the Control Server in user terminal and the multicast network communicates, and described Control Server obtains user terminal based on specific transactions or use service quality (QoS) resource parameters of a needed multicast data flow; Then, described Control Server to the described user terminal of resource management server request based on specific transactions or use the Internet resources of needed multicast data flow; Described resource management server is by judging conventional network resources and the signatory available resources of user, if resource request can be admitted, then described resource management server is according to the user ID of user terminal or the corresponding relation of IP address and circuit, find described user terminal to be attached to the network edge device of bearing bed in the multicast network, begin by described network edge device, find the copy-point equipment of described multicast data flow, in multicast network, finish the multicast path (or multicast channel) of multicast group again and set up, and the multicast path of setting up is carried out the service quality assurance.
The network equipment that the copy-point equipment of described multicast data flow is meant this bearing bed to described multicast group at its upstream the port of direction carried out the preassignment corresponding bandwidth.That is to say that this network equipment is the destination node equipment of transmitting in the multicast group address of described multicast data flow correspondence.
Certainly, described copy-point equipment just can be saved the network bandwidth more the closer to described user terminal.
The present invention specifically comprises following performing step:
Step s210: described resource management server is issued to the service quality resource request message of a multicast data flow request service quality resource correspondence in the bearing bed of multicast network the network edge device near described user terminal;
Described service quality resource request message comprises that port that QoS parameter information, user terminal adheres at described network edge device is or/and the address information of logical channel identifier information and multicast group.
Step s220: described network edge device receives described service quality resource request message, judges whether it is the copy-point equipment of described multicast data flow;
Wherein, the described network edge device record of whether preserving described multicast group by inquiry judges whether the copy-point equipment into described multicast data flow.
Step s230: if described network edge device is the copy-point equipment of described multicast data flow, then described network edge device carries out service quality and guarantees;
Described step s230 is: if described network edge device is by self inquiry, find the record before of preserving described multicast group, before showing that then carrying out this service quality guarantees, other ports that described network edge device adheres to have had identical resource request, and have reserved the service quality resource of described multicast group from upstream equipment to the described network edge device of described network edge device.At this moment, described network edge device is the copy-point equipment of described multicast group, and described network edge device carries out the service quality assurance to the multicast path of described multicast group.
Described step of carrying out the service quality assurance specifically comprises:
Described network edge device carries out service quality resource reservation to described user terminal at the port that described network edge device adheres to;
And described port information is added in the transmission tabulation of described multicast group.
And described resource reservation comprises the bandwidth of the described port of preassignment.
Step s240: if described network edge device is not the copy-point equipment of described multicast data flow, then described network edge device carries out service quality and guarantees;
If described network edge device is not preserved the record of described multicast group, then described network edge device also need carry out service quality according to the mode among the step s230 and guarantee, is not described in detail in this;
Step s250: described network edge device upstream device sends and adds the multicast group message, with the multicast path of the multicast group of setting up corresponding described multicast data flow;
Step s260: described upstream equipment judges whether the copy-point equipment into described multicast data flow after the described adding multicast group message that receives described network edge device transmission;
In this step, described upstream equipment is by inquiring about whether the QoS parameter information of preserving corresponding described multicast group self to be arranged, and judges whether the copy-point equipment into described multicast data flow.
Step s270: if described upstream equipment is the copy-point equipment of described multicast data flow, then described upstream equipment carries out service quality and guarantees;
Wherein, described step of carrying out the service quality assurance is:
The QoS parameter information that described upstream equipment is just preserved is used to receive described adding multicast group message forwarding port and carries out service quality resource reservation;
Described forwarding port is added in the forwarding list of described multicast group.
Certainly, described resource reservation comprises the bandwidth of the described port of preassignment.
Step s280: if described upstream equipment is not the copy-point equipment of described multicast data flow, then described upstream equipment carries out service quality and guarantees;
If described upstream equipment is not preserved the QoS parameter information of corresponding described multicast group, then described upstream equipment sends the message of the service quality resource parameter of the described multicast group of inquiry to described resource management server, described resource management server carries the service quality resource parameter information of described multicast group in response message, described upstream equipment obtains the service quality resource parameter information of described multicast group according to described response message, then, carrying out service quality according to the mode among the described step s270 guarantees.
Then, described upstream equipment sends to upstream equipment more and adds the multicast group message, more upstream equipment judges whether the copy-point equipment into described multicast data flow, and carry out service quality according to described step s270 and step s280 and guarantee, in multicast network, to find the copy-point equipment of described multicast data flow, set up the multicast path of multicast group of the correspondence of described multicast data flow, and simultaneously multicast path is carried out service quality and guarantee; This process is that repeating said steps s250 is to described step s280, from described upstream equipment, set up the multicast path of described multicast group and multicast path is carried out service quality to the more upstream equipment of the bearing bed of multicast network layer by layer and guarantee, up to the copy-point equipment that finds described multicast data flow, or send to upstream equipment more and to add the network boundary equipment that the multicast group message arrives the bearing bed of described multicast network.
Add the network boundary equipment that the multicast group message arrives the bearing bed of described multicast network if send, then specifically comprise the steps: to upstream equipment more
If described network boundary equipment sends adding multicast group message according to preestablishing to other network domains;
Perhaps, described network boundary equipment will not find the information of the copy-point equipment of described multicast group to send to described resource management server, be set up the multicast path of the multicast group of corresponding described multicast data flow to the described multicast group data stream of other network application by described resource management server.
Step s290:, send the resource reservation success message to described explorer for the network equipment of the copy-point equipment of described multicast data flow guarantees (described step s230 and described step s270) afterwards carrying out service quality;
Described resource reservation success message also reports that to described explorer the multicast path of described multicast group sets up successfully for corresponding network device, and simultaneously multicast path is successfully set up the message of service quality assurance.
What need supplementary notes is, in described step s240 and described step s280, if the corresponding network equipment is in the process of carrying out the service quality assurance, corresponding forwarding port is carried out the resource reservation failure, then need to send the resource reservation failed message, on described this multicast path of explorer report, to set up the information that service quality guarantees failure to the multicast group of described multicast data flow to described explorer.
In addition, described resource reservation success message and described resource reservation failed message all comprise the user totem information of described user terminal, or described adding multicast group message come source port information.
Described adding multicast group message is Internet igmpinternet (Internet Group ManagementProtocol, joining message IGMP), or multicast routing protocol (for example: Protocol IndependentMulticast, joining message PIM).
And described adding multicast group message carries the user totem information of described user terminal.
Described user ID is the IP address of described user terminal, or the sign of described user terminal on bearer network, or described resource management server sign that described user terminal is managed.
This shows, the present invention is that the bearing bed with multicast network utilizes multicast routing protocol, in layer upstream push the network boundary equipment of bearer network to by described network edge device, each layer network device all is the copy-point equipment that judges whether earlier to described multicast data flow, then service quality being carried out in the corresponding port guarantees, and initiate to add the multicast group message to last layer network equipment more, to set up the multicast path of described multicast group, up to the copy-point equipment that finds described multicast data flow, undertaken after service quality guarantees by the network equipment for the copy-point equipment of described multicast data flow, send the resource reservation success message to described explorer, reporting that to described explorer the multicast path of described multicast group sets up successfully, and simultaneously multicast path is successfully set up service quality and guarantee.Therefore, the present invention is to utilize multicast routing protocol, not revising under the prerequisite of utilizing multicast routing protocol, in better simply mode, dynamically set up the multicast path of the multicast group of corresponding described multicast data flow, and realize service quality assurance simultaneously the multicast path of described multicast group.
In addition, the service quality that the present invention has also disclosed in a kind of multicast network guarantees system, sees also shown in Figure 3.
This system comprises the upstream equipment of user terminal 310, Control Server 320, resource management server 330, access point apparatus 340 and access point apparatus 340.Wherein, described access point apparatus 340 is the network equipment of close described user terminal 310 on the bearing bed, the upstream equipment of described access point apparatus 340 is meant on the bearing bed, the upstream of described access point apparatus 340 comprises edge network gateway 350, network boundary gateway 360 etc. until the network equipment on border, networking.
Described Control Server 320 is the functional entity of above all professional controls of bearing bed network and application, may be an operation layer Control Server or an application server;
The server of described resource management server 330 in the multicast bear network Internet resources being managed concentratedly;
Described user terminal 310 will be based on specific transactions or service quality (QoS) resource parameters of using a needed multicast data flow by the described Control Server 320 of signaled, or described Control Server 320 is according to service request generation service quality (QoS) resource parameters of user terminal 310, described Control Server 320 is to the service quality resource of the multicast data flow of described user terminal 310 correspondences of described resource management server 330 requests, the control of described resource management server 330 pairs of these requests carrying out resource and admission, if this resource request can be passed through, then set up the multicast path of described multicast group, and on the multicast path of this described multicast group, set up the service quality resource assurance at bearing bed.
Wherein, described resource management server 330 is after the admittance control of passing through described resource request, according to the user ID of user terminal or the corresponding relation on IP address and access line road, find described user terminal 310 to be attached to the described access point apparatus 340 of bearing bed, and the service quality resource request message is issued to described access point apparatus 340;
Described access point apparatus 340 receives described service quality resource request message, and whether inquiry preserves the record of the multicast group of corresponding described service quality resource request message, if have, the multicast path of 340 pairs of described multicast group of then described access point apparatus carries out service quality and guarantees, otherwise after carrying out service quality resource reservation, upstream device (edge network gateway 350) sends and adds the multicast group message, sets up the multicast path of described multicast group;
After described edge network gateway 350 receives described adding multicast group message, and inquire about whether the service quality resource parameter information of preserving corresponding described multicast group is arranged,
If preserve the service quality resource parameter information of corresponding described multicast group in the described edge network gateway 350, then described edge network gateway 350 obtains this service quality resource parameter information carry out resource reservation after, send the resource reservation success messages to described resource management server 330;
If do not preserve the service quality resource parameter information of corresponding described multicast group in the described edge network gateway 350, then described edge network gateway 350 is by sending an inquiry to obtain corresponding service quality resource parameter information to resource management server 330, after carrying out resource reservation, again to the last layer network equipment more (such as, described network boundary gateway 360) sends adding multicast group message, until the copy-point equipment of finding out described multicast group, undertaken sending the resource reservation success message to described resource management server after service quality guarantees by described copy-point equipment.
Wherein, described service quality resource request message comprises that port that QoS parameter information, user terminal adheres at described network edge device is or/and the address information of logical channel identifier information and multicast group;
Described adding multicast group message is joining message of Internet igmpinternet (IGMP), or multicast routing protocol (for example: joining message PIM).
Described adding multicast group message carries the user totem information of described user terminal;
Described resource reservation success message comprises the user totem information of described user terminal, or described adding multicast group message comes source port information;
Described user ID is the IP address of described user terminal, or the sign of described user terminal on bearer network, or described resource management server sign that described user terminal is managed.
Compared with prior art, the present invention has following beneficial effect:
1. the present invention combines and carries out resource and admission control technology that service quality guarantees and the group broadcast protocol technology in the multicast network in the existing network, multicast protocol is not being done under the situation of any change, utilize multicast routing protocol, in better simply mode, the multicast path of multicast group of a multicast data flow correspondence and the unification that service quality guarantees the path have been realized, dynamically set up the multicast path of the multicast group of corresponding described multicast data flow at the bearing bed of multicast network, and realize service quality assurance simultaneously the multicast path of described multicast group;
2. the present invention guarantees the consistent of path according to the multicast path that multicast routing protocol is finished the multicast group of a multicast data flow correspondence with service quality fully, need not resource management server the pahtfinder hard that carries out service quality in the multicast network and guarantee is calculated and route maintenance.
Above embodiment only in order to the explanation the present invention and and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (16)
1. the method for ensuring service quality in the multicast network is characterized in that, comprises the steps:
A. receive the service quality resource request message corresponding near the network edge device of user terminal in the bearing bed of multicast network with multicast data flow request service quality resource from resource management server;
B. the bearing bed of multicast network utilizes internet group management protocol and/or multicast routing protocol, dynamically sets up the multicast path of the multicast group of corresponding described multicast data flow, and the multicast path of described multicast group is carried out the service quality assurance, and wherein step b specifically comprises:
B1, described network edge device judge whether it is the copy-point equipment of described multicast data flow;
B2, if described network edge device is the copy-point equipment of described multicast data flow, then described network edge device carries out service quality and guarantees;
B3, if described network edge device is not the copy-point equipment of described multicast data flow, then described network edge device carries out after the service quality assurance, upstream device sends and adds the multicast path that the multicast group message is set up the multicast group of corresponding described multicast data flow, wherein, described upstream equipment is to the network equipment of edge network gateway direction until network boundary from described network edge device.
2. the method for ensuring service quality in the multicast network according to claim 1, it is characterized in that, among the described step b1, described network edge device is inquired about the record of whether preserving described multicast group on this network edge device, if preserve the record of described multicast group, show that then this network edge device is the copy-point equipment of described multicast data flow, according to the record of described multicast group described multicast group is carried out service quality at network edge device described in the described step b2 and guarantee.
3. the method for ensuring service quality in the multicast network according to claim 1 is characterized in that, among the described step b3, described network edge device also comprises the steps: after described upstream equipment sends adding multicast group message
B31. described upstream equipment receives described adding multicast group message, judges whether the copy-point equipment into described multicast data flow;
B32. if described upstream equipment is the copy-point equipment of described multicast data flow, then described upstream equipment carries out service quality and guarantees;
B33. if described upstream equipment be the copy-point equipment of described multicast data flow, then described upstream equipment carries out after service quality guarantees, sends the multicast path that adding multicast group message is set up the multicast group of corresponding described multicast data flow to upstream equipment more.
4. the method for ensuring service quality in the multicast network according to claim 3 is characterized in that, among the described step b33, described upstream equipment carries out also comprising the steps: before the service quality assurance
Described upstream equipment obtains corresponding described multicast data flow requested service quality resource parameters to described resource management server inquiry.
5. the method for ensuring service quality in the multicast network according to claim 3, it is characterized in that, among the described step b33, add the network boundary equipment that the multicast group message arrives the bearing bed of described multicast network, then specifically comprise the steps: if send to upstream equipment more
Described network boundary equipment sends adding multicast group message according to preestablishing to other network domains; Perhaps: described network boundary equipment will not find the information of the copy-point equipment of described multicast group to send to described resource management server, be set up the multicast path of the multicast group of corresponding described multicast data flow to the described multicast group data stream of other network application by described resource management server.
6. according to the method for ensuring service quality in each described multicast network of claim 1 to 5, it is characterized in that described step of carrying out the service quality assurance specifically comprises:
Utilize corresponding described multicast data flow requested service quality resource parameters that the forwarding port of described multicast group is carried out resource reservation;
And the information of described forwarding port is added in the forwarding list of described multicast group.
7. the method for ensuring service quality in the multicast network according to claim 6 is characterized in that the step of described resource reservation comprises the bandwidth of the described forwarding port of preassignment.
8. according to the method for ensuring service quality in each described multicast network of claim 1 to 5, it is characterized in that, carry out also comprising after service quality guarantees as the network edge device of the copy-point equipment of described multicast data flow:
Described copy-point equipment sends the resource reservation success message to described resource management server.
9. the method for ensuring service quality in the multicast network according to claim 8 is characterized in that described resource reservation success message comprises the user totem information of described user terminal, or described adding multicast group message comes source port information;
Described user ID is the IP address of described user terminal, or the sign of described user terminal on bearer network, or described resource management server sign that described user terminal is managed.
10. the method for ensuring service quality in the multicast network according to claim 1, it is characterized in that described service quality resource request message comprises that port that QoS parameter information, user terminal adheres at described network edge device is or/and the address information of logical channel identifier information and multicast group.
11. the method for ensuring service quality according in each described multicast network of claim 1 to 5 is characterized in that, described adding multicast group message is joining message of Internet igmpinternet, or the joining message of multicast routing protocol.
12. the method for ensuring service quality in the multicast network according to claim 11 is characterized in that, described adding multicast group message carries the user totem information of described user terminal.
13. the service quality in the multicast network guarantees system, it is characterized in that, comprising:
Resource management server is used for the service quality resource request message of multicast data flow request service quality resource correspondence is issued to network edge device;
Network edge device, be used to receive described service quality resource request message, judge whether described network edge device is the copy-point equipment of described multicast data flow, if described network edge device is the copy-point equipment of described multicast data flow, then described network edge device carries out service quality and guarantees, if described network edge device is not the copy-point equipment of described multicast data flow, then described network edge device carries out after the service quality assurance, upstream device sends and adds the multicast path that the multicast group message is set up the multicast group of corresponding described multicast data flow, wherein, described upstream equipment is to the network equipment of edge network gateway direction until network boundary from described network edge device.
14. the service quality in the multicast network according to claim 13 guarantees system, it is characterized in that, described service quality guarantees to utilize corresponding described multicast data flow requested service quality resource parameters that the forwarding port of described multicast group is carried out resource reservation, and the information of described forwarding port is added in the forwarding list of described multicast group.
15. the service quality in the multicast network according to claim 13 guarantees system to it is characterized in that described adding multicast group message is joining message of Internet igmpinternet, or the joining message of multicast routing protocol.
16. the service quality in the multicast network according to claim 15 guarantees system, it is characterized in that described adding multicast group message carries the user totem information of described user terminal;
Described user ID is the IP address of described user terminal, or the sign of described user terminal on bearer network, or described resource management server sign that described user terminal is managed.
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| CN101515889B (en) * | 2009-04-03 | 2011-07-06 | 华为技术有限公司 | Replication and processing method for multicast message and device thereof |
| CN101534257B (en) * | 2009-04-16 | 2012-05-23 | 华为技术有限公司 | Method, system and equipment for processing message |
| CN103999404B (en) * | 2011-06-22 | 2017-09-12 | 华为技术有限公司 | For the third edition IGMP of QoS support |
| CN103997527B (en) * | 2014-05-23 | 2019-05-31 | 中国人民解放军理工大学 | A kind of meteorological model information distribution system based on heterogeneous network |
| CN106302206B (en) * | 2015-05-28 | 2020-04-24 | 中兴通讯股份有限公司 | Message forwarding processing method, device and system |
| CN105099725A (en) * | 2015-07-22 | 2015-11-25 | 杭州数梦工场科技有限公司 | Multicast realizing method and apparatus for edge network |
| CN114727235B (en) * | 2022-03-29 | 2024-01-30 | 中国电信股份有限公司 | Multicast service processing method and device, storage medium and electronic equipment |
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