CN101286863B - Implementing system and method of multicast application service based on MPLS - Google Patents
Implementing system and method of multicast application service based on MPLS Download PDFInfo
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Abstract
The invention discloses a system and a method for realizing the multicast application business based on an MPLS multicast, wherein, the system comprises an MPLS multicast tree module which is used for establishment and administration of the MPLS multicast tree which provides point-to-multipoint and multipoint-to-multipoint multicast replication function and interacts with a multicast application business module by an interface module; the interface module is used for connecting the MPLS multicast tree module and the multicast application business module and provides the seamless integration of the MPLS multicast tree and the multicast application business; the multicast application business module is used for processing various multicast application business and interacts with the MPLS multicast tree module by the interface module. By the system and the method of the invention, the MPLS multicast and the multicast application business can be seamlessly integrated, thus having the multicast application business obtaining a reliable network quality assurance provided by the MPLS multicast.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of multicast application business realizing system and method based on the MPLS multicast.
Background technology
Multiprotocol label switching (Multi-Protocol Label Switch; Abbreviation MPLS) multicast in provides MPLS multicast tree; The MPLS multicast tree is mainly formed by putting multiple spot and the multiple spot tag distribution protocol (Label Switch Path is called for short LSP) to multiple spot at present.Use is based on the MPLS multicast tree transmission data of label exchange; Can improve the performance of network, and exchange, service quality (Quality of Service can be provided through the label of MPLS; Abbreviation QoS), Differentiated Services traffic engineering (Diff-Serv Traffic Engineering; Be called for short DS-TE) and quick heavy-route functions such as (Fast Re-Routing are called for short FRR), to improve network service quality and link protection and recovery etc.The MPLS multicast tree can be passed through multicast label distribution protocol (Multicast Label Distribution Protocol; Be called for short MLDP; Agreement is with reference to draft-ietf-mpls-ldp-p2mp-02), resource reservation protocol flow engineering (Resource reSerVation Protocol-Traffic Engineering; Be called for short RSVP-TE, agreement is with reference to draft-ietf-mpls-rsvp-te-p2mp-07) agreement sets up the LSP of point to multiple spot and multiple spot to multiple spot; Perhaps according to multicast routing protocol; Like sparse mode independent multicast agreement (Protocol Independent Multicast-Sparse Mode; Be called for short PIM-SM, can be with reference to RFC4601), (Protocol Independent Multicast-Source Specific Multicast is called for short PIM-SSM for the independent multicast agreement of source specific multicast; Can be with reference to RFC4607) etc.; Set up Internet protocol (InternetProtocol, be called for short IP) multicast tree, set up MPLS multicast tree (can with reference to RFC3353) according to the IP multicast tree.
The multicast application business is meant to provide a little and uses to the multicast replication of multiple spot to multiple spot and multiple spot.Can be provided at the multicast replication function of point in the VPN for virtual private network (Virtual Private Network, be called for short VPN) multicast to multiple spot and multiple spot to multiple spot; Also can multiple spot and the multiple spot multicast replication function to multiple spot be provided a little for IP-based video multicasting (need in IP network).
The professional needed point of multicast application, can provide through the multicast tree of IP multicast protocol foundation to the multicast replication function of multiple spot to multiple spot and multiple spot, also can provide through the MPLS multicast tree.Current multicast applied business mainly uses the IP multicast that multicast tree is provided; Because the IP multicast can't provide functions such as network quality assurance, traffic engineering and link protection and fast quick-recovery well for multicast service, so can't satisfy professional the carrying out on a large scale of multicast application.
Therefore, a kind of multicast application business realizing system and method based on the MPLS multicast need be provided, so that the professional seamless combination of MPLS multicast and multicast application, thereby the reliable network quality assurance that the professional MPLS of acquisition of multicast application multicast is provided.
Summary of the invention
In view of above one or more problems, the invention provides a kind of multicast application business realizing system and method based on the MPLS multicast.
Multicast application business realizing system based on the MPLS multicast according to the present invention comprises: MPLS multicast tree module; Be used for creating and management MPLS multicast tree; Carry out alternately through interface module and multicast application business module; Wherein, the MPLS multicast tree provides and a little arrives multiple spot and the multiple spot multicast replication function to multiple spot; Interface module is used to connect MPLS multicast tree module and multicast application business module, provides MPLS multicast tree and multicast application professional seamless combination; And the multicast application business module, be used for various multicast application business are handled, and carry out alternately through interface module and MPLS multicast tree module.
Wherein, MPLS multicast tree module comprises: multicast tree is created module, is used for creating the MPLS multicast tree according to service quality and bandwidth requirement; The multicast tree administration module is used for according to service quality and bandwidth requirement the MPLS multicast tree being managed, and the link of MPLS multicast tree is protected and fast quick-recovery; And data forwarding module, be used for carrying out transmitting multicast data according to service quality and bandwidth requirement.
Wherein, multicast tree is created module and is created through following at least a mode: set up point according to multicast label distribution protocol and RSVP-traffic engineering agreement and arrive multiple spot and the multiple spot tag distribution protocol to multiple spot; Create the IP multicast tree according to multicast routing protocol, further set up the MPLS multicast tree; Set up the MPLS multicast tree according to NMP; Set up the MPLS multicast tree according to the method for static configuration; And set up the MPLS multicast tree according to other agreements.
Wherein, at least a multicast service below the multicast application business module management: virtual private network multicast service, IP video multicasting and other need provide the applied business of multicast functionality.MPLS multicast tree module and multicast application business module belong to distinct device or belong to the disparate modules of same equipment.
Multicast application service implementation method based on the MPLS multicast according to the present invention comprises with next procedure at least: S202, and the multicast application business module carries out multicast tree request or renewal through the interface module between multicast application business module and the MPLS multicast module to MPLS multicast module; S204, MPLS multicast tree module creation or renewal MPLS multicast tree also respond, the foundation or the renewal result of notice multicast application services module multicast tree, wherein, the MPLS multicast tree provides and a little arrives multiple spot and the multiple spot multicast replication function to multiple spot; And S206, need cancel in MPLS multicast module under the situation of MPLS multicast tree of foundation, MPLS multicast module reclaims the MPLS multicast tree through interface module to the multicast application business module; Do not need at the multicast application business module under the situation of MPLS multicast tree, the multicast application business module discharges the MPLS multicast tree through interface module to MPLS multicast module.
Wherein, the multicast application business module multicast tree request of setting up or the multicast tree updating message that are sent to MPLS multicast module comprise following at least one: the MTU attribute of MPLS multicast tree type, nodal community, multicast tree leaf node information, MPLS multicast tree identifier and multicast application service needed.
Wherein, the response that returns to the multicast application business module of MPLS multicast module comprise following at least one: MPLS multicast tree type, nodal community, multicast tree are created result, MPLS multicast identifier and forwarding label information.The recovery message that MPLS multicast module is sent to the multicast application business module comprise following at least one: MPLS multicast tree type, MPLS multicast tree identifier, nodal community and reclaim reason.The release message that the multicast application business module is sent to MPLS multicast module comprise following at least one: MPLS multicast tree type, MPLS multicast tree identifier, nodal community and release cause.
Multicast application service implementation method according to the present invention can be used to realize that virtual private network multicast service, IP video multicasting and other needs provide the applied business of multicast functionality.
Through the present invention, can make the professional seamless combination of MPLS multicast and multicast application, thus the reliable network quality assurance that the professional MPLS of acquisition of multicast application multicast is provided.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram based on the multicast application business realizing system of MPLS multicast according to the embodiment of the invention;
Fig. 2 is the flow chart based on the multicast application service implementation method of MPLS multicast according to the embodiment of the invention; And
Fig. 3 is according to another embodiment of the present invention based on the schematic flow sheet of the multicast application service implementation method of MPLS multicast.
Embodiment
With reference to accompanying drawing, specify embodiment of the present invention below.
With reference to figure 1, the multicast application business realizing system based on the MPLS multicast according to the embodiment of the invention is described.As shown in Figure 1; Should comprise based on the multicast application business realizing system of MPLS multicast: MPLS multicast tree module 102; Be used for creating and management MPLS multicast tree; Carry out alternately through interface module and multicast application business module, wherein, the MPLS multicast tree provides and a little arrives multiple spot and the multiple spot multicast replication function to multiple spot; Interface module 104; Be used to connect MPLS multicast tree module and multicast application business module; The information of MPLS multicast tree module is passed to the multicast application business module, the information of multicast application business module is passed to MPLS multicast tree module, thereby MPLS multicast tree and the professional seamless combination of multicast application are provided; And multicast application business module 106; Be used for carrying out alternately, send multicast application professional (for example, multicast video streams) and give MPLS multicast module with MPLS multicast tree module; And various multicast application business are handled (for example, miscellaneous service management, charging etc.).
Wherein, MPLS multicast tree module 102 comprises: multicast tree is created module 1022, is used for setting up at IP network the MPLS multicast tree of the multicast application business need that meets various quality of service requirements such as comprising QoS and bandwidth; Multicast tree administration module 1024; Be used for the MPLS multicast tree being managed (comprise carry out multicast tree grafting, beta pruning, multicast tree deletion etc.), and be used for the MPLS multicast tree is carried out link protection and when breaking down, carried out developing and managing of quick restoring mechanism according to various quality of service requirements such as QoS and bandwidth; And data forwarding module 1026, the point that is used for providing according to the MPLS multicast tree to the LSP of multiple spot, according to various quality of service requirements such as QoS and bandwidth, carries out transmitting multicast data to multiple spot and multiple spot.
Wherein, multicast tree is created module and is created through following at least a mode: set up point according to multicast label distribution protocol and RSVP-traffic engineering agreement and arrive multiple spot and the multiple spot tag distribution protocol to multiple spot; Create the IP multicast tree according to multicast routing protocol, further set up the MPLS multicast tree; Set up the MPLS multicast tree according to NMP; Set up the MPLS multicast tree according to the method for static configuration, that is, through on each branch node, carrying out static configuration, thereby set up multicast tree; And set up the MPLS multicast tree according to other agreements.。
Wherein, at least a multicast service below the multicast application business module management: virtual private network multicast service, IP video multicasting and other need provide the applied business of multicast functionality.MPLS multicast tree module and multicast application business module can belong to distinct device, also can belong to the disparate modules of same equipment.
With reference to figure 2, the multicast application service implementation method based on the MPLS multicast according to the embodiment of the invention is described.As shown in Figure 2; Should may further comprise the steps based on the multicast application service implementation method of MPLS multicast: S202; Set up and upgrade the MPLS multicast tree when carrying out muticast data transmission when the multicast application service needed, the multicast application business module carries out multicast tree request or renewal through the interface module between multicast application business module and the MPLS multicast module to MPLS multicast module; S204; MPLS multicast tree module creation or upgrade the MPLS multicast tree and the multicast application business module is responded through the interface module between multicast application business module and the MPLS multicast module; The foundation or the renewal result of notice multicast application services module multicast tree; Wherein, the MPLS multicast tree provides and a little arrives multiple spot and the multiple spot multicast replication function to multiple spot; And S206; Set up failure perhaps because other reasons in MPLS multicast module to multicast application business module indication MPLS multicast tree; Need cancel under the situation of MPLS multicast tree of foundation, MPLS multicast module reclaims the MPLS multicast tree through interface module to the multicast application business module; Do not need at the multicast application business module under the situation of MPLS multicast tree, the multicast application business module discharges the MPLS multicast tree through interface module to MPLS multicast module.
Wherein, MPLS multicast tree module can be for arriving multiple spot and the multiple spot LSP to multiple spot according to mLDP, RSVP-TE agreement foundation point; According to multicast routing protocol; Like PIM-SM, PIM-SSM, dense mode independent multicast agreement (Protocol IndependentMulticast-Dense Mode; Be called for short PIM-DM), distance vector multicast routing protocol (Distant Vector Multicast Routing Protocol is called for short DVMRP) and based on the tree (Core Based Tree is called for short CBT) of core etc.; Set up the IP multicast tree, set up the MPLS multicast tree according to the IP multicast tree; Set up the MPLS multicast tree according to NMP; And set up the MPLS multicast tree according to other agreements.
Wherein, the multicast application business module can be provided at the multicast replication function of point to multiple spot and multiple spot to multiple spot in the VPN for VPN multicast (comprising Layer2VPN and Layer3VPN); Also can be provided at the multicast replication function of point in the IP network for IP-based video multicasting to multiple spot and multiple spot to multiple spot; Also can a little arrive multiple spot and multiple spot multicast replication function for other need provide the applied business of multicast functionality to provide to multiple spot.
Wherein, MPLS multicast tree module and multicast application business module are two entities, and these two entities can be different equipment, also can be the disparate modules of same equipment, different processes etc.Interface operation function between MPLS multicast tree module and the multicast application business module can realize through signaling protocol, realize, also can realize through other interactive operations through module or inter-process messages.
Wherein, the multicast application business module multicast tree request of setting up or the multicast tree updating message that are sent to MPLS multicast module comprise following at least one: the MTU attribute of MPLS multicast tree type, nodal community, multicast tree leaf node information, MPLS multicast tree identifier and multicast application service needed.
Wherein, the response that returns to the multicast application business module of MPLS multicast module comprise following at least one: MPLS multicast tree type, nodal community, multicast tree are created result, MPLS multicast identifier and forwarding label information.The recovery message that MPLS multicast module is sent to the multicast application business module comprise following at least one: MPLS multicast tree type, MPLS multicast tree identifier, nodal community and reclaim reason.The release message that the multicast application business module is sent to MPLS multicast module comprise following at least one: MPLS multicast tree type, MPLS multicast tree identifier, nodal community and release cause.
With reference to figure 3, the multicast application service implementation method based on the MPLS multicast is described according to another embodiment of the present invention.As shown in Figure 3, MPLS multicast module and multicast application business module are through the interface module interactive information between MPLS multicast module and the multicast application business module.The feature operation of the interface module between MPLS multicast module and the multicast application business module can be described as following four process: S302, and the multicast application business module carries out multicast tree foundation and renewal to the request of MPLS multicast module; S304, MPLS multicast module is responded multicast tree to the multicast application business module; S306, MPLS multicast module is regained multicast tree to the multicast application business module; And S308, the multicast application business module discharges multicast tree to MPLS multicast module.
The purpose that the multicast application business module carries out multicast tree foundation and renewal to the request of MPLS multicast module is to obtain MPLS multicast tree identifier.This multicast tree is set up and is upgraded and can comprise following content, but is not limited to these contents:
MPLS multicast tree type.Its type has: set up the LSP of point to multiple spot and multiple spot to multiple spot through mLDP and RSVP-TE agreement; Through the IP multicast protocol, like PIM-SM, PIM-SSM etc., set up the IP multicast tree, further set up the MPLS multicast tree according to the IP multicast tree.
Nodal community.Its attribute comprises: outlet (Egress) node of multicast data flow inlet (Ingress) node and multicast data flow.
The Egress nodal information.LSP for being initiated by the Ingress node to set up need carry the Egress nodal information.
MPLS multicast tree identifier.The MPLS multicast identifier is used for identifying uniquely a MPLS multicast tree, and this attribute is only effective to the Egress node.
The RSVP-TE attribute if MPLS multicast tree type is the P2MP LSP that RSVP-TE sets up, then need carry this attribute information.
The MTU of multicast application service needed (MTU) attribute, this attribute is optional.
If trigger the P2MP LSP set up RSVP-TE by the Ingress node, then need carry the RSVP-TE attribute information, comprise like bandwidth, foundation and maintenance priority, explicit path, whether FRR protection, trail protection and affinity etc.If the MTU attribute of the MTU attribute of multicast application business need and MPLS multicast tree does not match, then the MPLS multicast tree is set up failure.
The multicast tree that MPLS multicast module is responded to the multicast application business module is responded and can be comprised following content, but is not limited to these contents:
MPLS multicast tree type.Its type has: set up the LSP of point to multiple spot and multiple spot to multiple spot through mLDP and RSVP-TE agreement; Through the IP multicast protocol, like PIM-SM, PIM-SSM etc., set up the IP multicast tree, further set up the MPLS multicast tree according to the IP multicast tree.
Nodal community.Its attribute comprises two kinds of Ingress node and Egress nodes.
Return attribute.Comprise success and two kinds of failures, wherein, under situation about returning success, can continue to comprise property; Returning under the situation of failure, can comprise failure cause.
The MPLS multicast identifier.The MPLS multicast identifier is used for identifying a MPLS multicast tree uniquely in this locality, and this attribute is only effective to the Ingress node.
Forwarding label information.The Ingress node is responded outgoing label information, and the Egress node is responded into label information.
Return attribute.It describes the reason of MPLS multicast tree request failure, as: the control of MPLS multicast tree Egress interstitial content, P2MP/MP2MP LSP failures in resource application, P2MP LSP initiate to set up reasons such as failure.
The purpose that MPLS multicast module is regained multicast tree to the multicast application business module is, sets up failure to multicast application business module indication MPLS multicast tree.This multicast tree is regained can comprise following content, but is not limited to these contents:
MPLS multicast tree type.Its type has: set up the LSP of point to multiple spot and multiple spot to multiple spot through mLDP and RSVP-TE agreement; Through the IP multicast protocol, like PIM-SM, PIM-SSM etc., set up the IP multicast tree, further set up the MPLS multicast tree according to the IP multicast tree.
MPLS multicast tree identifier.The MPLS multicast identifier is used for identifying uniquely a MPLS multicast tree.
Nodal community.Its attribute comprises two kinds of Ingress node and Egress nodes.
Return attribute.It can comprise certain withdrawal reason, as in RSVP-TE, and the QoS failures in resource application.
The multicast application business module is to the purpose that MPLS multicast module discharges multicast tree, to the releasing operation of MPLS multicast module indication to the MPLS multicast tree.The release of multicast tree here can comprise following content, but is not limited to these contents:
MPLS multicast tree type.Its type has: set up the LSP of point to multiple spot and multiple spot to multiple spot through mLDP and RSVP-TE agreement; Through the IP multicast protocol, like PIM-SM, PIM-SSM etc., set up the IP multicast tree, further set up the MPLS multicast tree according to the IP multicast tree.
MPLS multicast tree identifier.The MPLS multicast identifier is used for identifying uniquely a MPLS multicast tree.
Nodal community.Its attribute comprises two kinds of Ingress node and Egress nodes.
Return attribute.It can comprise certain release cause, disappears like multicast source.
Describe below in the multicast application business module, to the function treatment of four interaction flows of the interface module between MPLS multicast module and the multicast application business module, its operating process respectively as follows:
When 1, the MPLS multicast tree set up and upgraded to the multicast application business module need, carry out multicast tree foundation and renewal to the request of MPLS multicast module through the interface module between MPLS multicast module and the multicast application business module;
2, after the multicast application business module is received the response of multicast tree, according to the information that the response of multicast tree is carried, do the professional further processing of multicast application, this processing is relevant with concrete multicast application business demand;
3, after the multicast application business module is received the withdrawal of multicast tree, according to the information that the withdrawal of multicast tree is carried, do the professional further processing of multicast application, this processing is relevant with concrete multicast application business demand;
4, the multicast application business module is being found because multicast source disappears or other reasons, and when no longer needing the MPLS multicast tree, carries out the release of multicast tree.
Describe below in the MPLS multicast module, to the function treatment of four interaction flows of the interface module between MPLS multicast module and the multicast application business module, its operating process respectively as follows:
1, through the interface module between MPLS multicast module and the multicast application business module, MPLS multicast module is received multicast tree request and renewal;
2, to MPLS multicast tree type; MPLS multicast module receives that the operation after the multicast tree request has nothing in common with each other, and present embodiment is that example is described with the P2MP LSP (Point-to-Multipoint LSP) of RSVP-TE foundation and the P2MP/MP2MP LSP (Point-to-Multipoint/Multipoint-to-Multipoint LSP) of LDP foundation;
The P2MP LSP that RSVP-TE sets up: after receiving the request of multicast tree and upgrading, the Ingress node triggers and sets up P2MP LSP, have only P2MP LSP to set up successfully after, ability is carried the response of the multicast tree of forwarding label information to the multicast application business module; The Egress node carries the response of the multicast tree of forwarding label information according to the corresponding LSP of P2MP LSP identifier match to the multicast application business module;
The P2MP/MP2MP LSP that LDP sets up: after receiving the request and renewal of multicast tree, the Ingress node carries the response of the multicast tree of forwarding label information to the multicast application business module; The Egress node triggers sets up P2MP/MP2MP LSP, have only P2MP/MP2MP LSP to set up successfully after, ability is carried the response of the multicast tree of forwarding label information to the multicast application business module;
3, MPLS multicast module is owing to setting up and when upgrading the failure of MPLS multicast tree or other reasons and needing MPLS multicast tree that withdrawal set up, carrying out the withdrawal of multicast tree to the multicast application business module;
4, the MPLS multicast module release of receiving multicast tree from the multicast application business module according to the information that the release of multicast tree is carried, is removed the MPLS multicast tree of having set up.
Provide some multiple spot and multiple spot to the multicast replication function of multiple spot through the MPLS multicast tree, can obtain the superior function of MPLS at aspects such as network quality assurance, traffic engineering, link protection and recoveries; Through using the interface module between MPLS multicast module and the multicast application business module, make MPLS multicast tree and multicast application business seamless combination, thereby satisfied the demand of multicast application business Network Transmission.
The above is merely embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (13)
1. one kind is the multicast application business realizing system of MPLS multicast based on the multiprotocol label switching multicast, it is characterized in that comprising:
MPLS multicast tree module is used for creating and management MPLS multicast tree, carries out alternately through interface module and multicast application business module, and wherein, said MPLS multicast tree provides and a little arrives multiple spot and the multiple spot multicast replication function to multiple spot;
Said interface module; Be used to connect said MPLS multicast tree module and said multicast application business module; Provide said MPLS multicast tree and said multicast application professional seamless combination; Wherein, said interface module provides said MPLS multicast tree and said multicast application professional seamless combination in the following manner: the information of said MPLS multicast tree module is passed to said multicast application business module, the information of said multicast application business module is passed to said MPLS multicast tree module; And
Said multicast application business module is used for various multicast application business are handled, and carries out alternately through said interface module and said MPLS multicast tree module.
2. multicast application business realizing according to claim 1 system is characterized in that said MPLS multicast tree module comprises:
Multicast tree is created module, is used for creating said MPLS multicast tree according to service quality and bandwidth requirement;
The multicast tree administration module is used for according to service quality and bandwidth requirement said MPLS multicast tree being managed, and the link of said MPLS multicast tree is protected and when breaking down, carried out fast quick-recovery; And
Data forwarding module is used for carrying out transmitting multicast data according to service quality and bandwidth requirement.
3. multicast application business realizing according to claim 2 system is characterized in that, said multicast tree is created module and created through following at least a mode:
Set up the tag distribution protocol of point according to multicast label distribution protocol and RSVP-traffic engineering agreement to multiple spot and multiple spot to multiple spot;
Create the IP multicast tree according to multicast routing protocol, further set up the MPLS multicast tree;
Set up the MPLS multicast tree according to NMP; And
Set up the MPLS multicast tree according to the method for static configuration.
4. according to each described multicast application business realizing system in the claim 1 to 3, it is characterized in that at least a multicast service below the said multicast application business module management: virtual private network multicast service and IP video multicasting.
5. according to each described multicast application business realizing system in the claim 1 to 3, it is characterized in that the multicast service of said multicast application business module managerial demand multicast functionality.
6. multicast application business realizing according to claim 4 system is characterized in that said MPLS multicast tree module and said multicast application business module belong to distinct device or belong to the disparate modules of same equipment.
7. one kind is the multicast application service implementation method of MPLS multicast based on the multiprotocol label switching multicast, it is characterized in that comprising:
S202, the multicast application business module carries out multicast tree request or renewal through the interface module between said multicast application business module and the MPLS multicast module to said MPLS multicast module;
S204, said MPLS multicast module creation or renewal MPLS multicast tree also respond, and notify the foundation of said multicast application business module multicast tree or upgrade the result, and wherein, said MPLS multicast tree provides and a little arrives multiple spot and the multiple spot multicast replication function to multiple spot; And
S206 need cancel in said MPLS multicast module under the situation of MPLS multicast tree of foundation, and said MPLS multicast module reclaims said MPLS multicast tree through said interface module to said multicast application business module; Do not need under the situation of MPLS multicast tree at said multicast application business module, said multicast application business module discharges said MPLS multicast tree through said interface module to said MPLS multicast module.
8. multicast application service implementation method according to claim 7; It is characterized in that, the multicast tree request of setting up or the multicast tree updating message that said multicast application business module is sent to said MPLS multicast module comprise following at least one: the MTU attribute of MPLS multicast tree type, nodal community, multicast tree leaf node information, MPLS multicast tree identifier and multicast application service needed.
9. multicast application service implementation method according to claim 7; It is characterized in that, the response that said MPLS multicast module returns to said multicast application business module comprise following at least one: MPLS multicast tree type, nodal community, multicast tree are created result, MPLS multicast identifier and forwarding label information.
10. multicast application service implementation method according to claim 7; It is characterized in that, the recovery message that said MPLS multicast module is sent to said multicast application business module comprise following at least one: MPLS multicast tree type, MPLS multicast tree identifier, nodal community and reclaim reason.
11. multicast application service implementation method according to claim 7; It is characterized in that, the release message that said multicast application business module is sent to said MPLS multicast module comprise following at least one: MPLS multicast tree type, MPLS multicast tree identifier, nodal community and release cause.
12. each described multicast application service implementation method in 11 is characterized in that said multicast application service implementation method is used to realize virtual private network multicast service or IP video multicasting according to Claim 8.
13. each described multicast application service implementation method in 11 is characterized in that according to Claim 8, said multicast application service implementation method is used to realize the multicast service that needs multicast functionality to support.
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| US8064447B2 (en) | 2008-03-27 | 2011-11-22 | Futurewei Technologies, Inc. | Computing point-to-multipoint paths |
| CN101741714B (en) * | 2008-11-19 | 2012-04-04 | 华为技术有限公司 | Path adjust method, node device and half-duplex network system |
| CN102904808B (en) * | 2011-07-25 | 2017-08-25 | 中兴通讯股份有限公司 | Across the method for building up and system of resource reservation protocol flow engineering label switched path |
| CN103716169B (en) * | 2012-09-29 | 2017-11-24 | 华为技术有限公司 | Point-to-multipoint method of realizing group broadcasting, network node and system |
| EP2918052B1 (en) | 2012-11-08 | 2018-05-30 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for configuring multicast group |
| CN104113483B (en) * | 2013-04-19 | 2017-06-20 | 华为技术有限公司 | A kind of method for multicast communication and convergence switch |
| CN115134287A (en) * | 2022-06-30 | 2022-09-30 | 中国电信股份有限公司 | Multicast state and data management method and system, controller and storage medium |
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| CN1848807A (en) * | 2005-11-29 | 2006-10-18 | 华为技术有限公司 | Group broadcasting business realizing method |
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