CN101808004B - Method and system for realizing Anycast-RP mechanism - Google Patents
Method and system for realizing Anycast-RP mechanism Download PDFInfo
- Publication number
- CN101808004B CN101808004B CN201010140592.9A CN201010140592A CN101808004B CN 101808004 B CN101808004 B CN 101808004B CN 201010140592 A CN201010140592 A CN 201010140592A CN 101808004 B CN101808004 B CN 101808004B
- Authority
- CN
- China
- Prior art keywords
- convergent point
- multicast
- multicast source
- direct
- logon message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a method for realizing an Anycast-RP mechanism. The method comprises that a multicast source sends a multicast stream to an SDR; the SDR sends a packaged registration message to an RP; the RP is added with an SPT in the multicast source direction and establishes the SPT from the multicast source to a multicast receiver; the RPT is switched to the SPT and the SDR sends the multicast stream to a UDR by the SPT. The invention also discloses a system for realizing the Anycast-RP mechanism. According to the technical scheme of the invention, the Anycast-RP mechanism is simply realized.
Description
Technical field
The present invention relates to procotol multicast technology in data communication field, relate in particular to a kind of method and system of realizing Anycast-RP mechanism.
Background technology
Procotol (IP, Internet Protocol) multicasting technology provides a kind of network layer point-to-multipoint data retransmission mode, in the application transmitting in network data, multicast has efficient bandwidth and once to multiple receiving stations, transmits the ability of identical content, has reduced the load of network and server.Up to the present, IP multicasting technology has been widely used in the value-added services such as video request program, IPTV (IPTV, InternetProtocol Television), video conference, long-distance education, network radio station, online game.Due to the characteristic of IP multicasting technology itself, make IP multicasting technology have huge development prospect in IP network field.
Sparse mode independent multicast agreement (PIM-SM, Protocol Independent Multicast-SparseMode) implication to be Multicast Routing do not have correlation with the kind that adopts unicast routing protocol, this agreement possesses independence, ease for use, high efficiency and the extensibility of natural agreement, has become the preferred version of IP multicasting technology current and of future generation.
Convergent point (RP, Rendezvous Point) be concept important in PIM-SM, it is the router of a kind of RP by name, direct-connected multicast source Designated Router (DR, Designated Router) be responsible for to RP registration information about multicast source, thereby set up RP to the shortest path tree (SPT, Shortest-Path Tree) between direct-connected multicast source DR.Last DR connects multicast receivers, is responsible for initiating to add multicast share tree (RPT, Rendezvous Point Tree) to RP direction, thereby sets up multicast source to the multicast distribution tree between multicast receivers.Therefore RP becomes the maincenter connecting between multicast source and multicast receivers, is also the key node that in PIM-SM, flux of multicast forwards.The DR that claims direct-connected multicast source is below SDR, and the DR of direct-connected multicast receivers is UDR.
In standard P IM-SM, each multicast group can only be mapped to a unique movable RP, and this feature is brought following defect: one, control message and data message and all will pass through RP, not only increased the weight of the burden of RP, also formed network bottleneck; Two, after movable RP lost efficacy, need to re-start RP election, again initiate registration and adition process, cause Multicast Routing convergence slow; Wherein movable RP is the RP finally being elected in multiple RP; Three, single RP reliability is poor.In order to strengthen the reliability of RP in PIM-SM, and the flux of multicast in network is shared, can on backbone network, be chosen some RP operation Anycast-RP mechanism, to reach the object of redundancy backup and load balancing.Broadcast arbitrarily convergent point (Anycast-RP, AnycastRendezvous Point) mechanism refers to and in pim-sm domain, chooses certain unicast address as RP address (RPA, Rendezvous Point Address), RP information can also can dynamically be issued by PIM-SM by static configuration, and RP information comprises the priority of RP and the RPA of RP; In pim-sm domain, select a group node as RP, this group node is called Anycast-RP collection, and in Anycast-RP collection, all members enable the local loopback interface (Loopback) of an address as RPA, and are published in singlecast router system.In Anycast-RP collection, each member is called Anycast-RP member.Between Anycast-RP member, by certain means, share information about multicast source, each Anycast-RP member only bears the maincenter role of its peripheral region.
In the prior art, by set up Multicast Source Discovery Protocol (MSDP between Anycast-RP member, Multicast Source Discovery Protocol) peer-to-peer, utilize source activity (SA, Source-Active) message is shared information about multicast source, as shown in Figure 1, workflow and the effect of Anycast-RP mechanism in PIM-SM is as follows:
1, RP1 and RP2 MSDP peer-to-peer each other, and enable identical IP address, as RPA.
2, the Designated Router SDR1 that connects multicast source S1 selects nearer convergent point RP1 registration.
3, Anycast-RP member RP1 by MSDP to another member RP2 notifying multicast source information in Anycast-RP collection.
4, the Designated Router UDR2 that connects multicast receivers USER2 selects nearer convergent point RP2 to add SPT, and RP2 initiates to add to Designated Router SDR1 direction, creates RPT.
5, create from Designated Router SDR1 to convergent point RP1 again to the multicast forwarding path of Designated Router UDR2.
6, the same above-mentioned steps of flow process of multicast receivers USER1 receiving group source S2.
If 7 convergent point RP1 lost efficacy or Designated Router SDR1 lost efficacy to the unicast path of RP1, wait for that after singlecast router convergence, SDR1 can reselect RP2 as convergent point; Equally, if convergent point RP2 lost efficacy or Designated Router SDR2 lost efficacy to the unicast path of RP2, wait for that after singlecast router convergence, SDR2 can reselect RP1 as convergent point, thereby realizes the Fast Convergent of multicast forwarding path.
In the method for above-mentioned existing techniques in realizing Anycast-RP mechanism, need in all Anycast-RP member node, move MSDP, need to safeguard like this MSDP peer-to-peers a large amount of between Anycast-RP member node; Because MSDP peer-to-peer is connected with multiple pim-sm domains, thereby finds the information about multicast source in other pim-sm domain, so existence is mutual between pim-sm domain and multiple MSDP peer-to-peer, thereby increased the complexity of Anycast-RP mechanism.In addition, in the research of next generation network and planning, IP multicast system has been abandoned MSDP.As can be seen here, no matter be in order to optimize current network, or in order to improve IP multicast routing protocol in next generation network, all need to consider how to retain Anycast-RP mechanism under the condition of removing MSDP.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system of realizing Anycast-RP mechanism, has simply realized Anycast-RP mechanism.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method that realizes Anycast-RP mechanism, comprising:
Multicast source sends the Designated Router (SDR) of multicast data flow to direct-connected multicast source, and SDR sends to convergent point (RP) by the logon message of encapsulation;
RP adds the shortest path tree (SPT) of multicast source direction, sets up the SPT of multicast source to multicast receivers;
By multicast share tree (RPT), switch to SPT, SDR sends to multicast data flow by SPT the Designated Router (UDR) of direct-connected multicast receivers.
In said method, the method further comprises:
At the each upper configuration convergent point of convergent point (Anycast-RP) member address (RPA) and convergent point mailing address (RPCA) broadcast arbitrarily.
In said method, describedly on each Anycast-RP member, configure RPA and RPCA is specially:
On each Anycast-RP member, configure identical RPA, and on each Anycast-RP member, configure a RPCA, on each RP, preserve other Anycast-RP members' RPCA.
In said method, described multicast source sends multicast data flow to SDR, and SDR sends to RP to be specially the logon message of encapsulation:
Multicast source sends multicast data flow to SDR, according to the RPA of the priority of candidate RP and RP, elects a RP, and by searching the singlecast router that destination address is RPA, SDR sends to the outgoing interface direction of RP the logon message that has encapsulated multicast data message.
In said method, described RP adds the SPT of multicast source direction, sets up multicast source and is specially to the SPT of multicast receivers:
RP adds the SPT of multicast source direction, to SDR, sends stopped registration messages, to other all Anycast-RP members, forwards logon message; SDR stops sending logon message, and suppresses, after timer expiry, to RP, to send empty logon message in registration; Other Anycast-RP members send stopped registration messages to RP, and add the SPT of multicast source direction.
In said method, described SDR stops sending logon message, and suppresses, after timer expiry, after RP sends empty logon message, also to comprise in registration:
RP sends stopped registration messages to SDR, to other all Anycast-RP members, forwards empty logon message; Other RP in Anycast-RP member send stopped registration messages to the RP that sends empty logon message.
The present invention also provides a kind of system that realizes Anycast-RP mechanism, and this system comprises: SDR, RP, handover module, UDR, wherein,
SDR, the multicast data flow sending for receiving group source, and the logon message of encapsulation is sent to RP; By SPT, multicast data flow is sent to UDR;
RP, for receiving the logon message of encapsulation, and adds the SPT of multicast source direction, sets up the SPT of multicast source to multicast receivers;
Handover module, for switching to SPT by RPT;
UDR, the multicast data flow sending by SPT for receiving SDR.
In said system, this system further comprises:
Configuration module, for configuring RPA and RPCA on each Anycast-RP member.
The method and system of realizing Anycast-RP mechanism provided by the present invention, removing on the basis of MSDP of the prior art, simply realize Anycast-RP mechanism, and the redundancy backup of RP, the load sharing of flux of multicast and the Fast Convergent of multicast forwarding path, further perfect IP multicast routing protocol and current network in next generation network.
Accompanying drawing explanation
Fig. 1 is that the typical case who realizes Anycast-RP mechanism in prior art applies networking schematic diagram;
Fig. 2 is the schematic flow sheet that the present invention realizes the method for Anycast-RP mechanism;
Fig. 3 is the schematic flow sheet that RP of the present invention registered and added the method for the SPT of multicast source direction;
Fig. 4 is the networking schematic diagram of the present invention embodiment of realizing the method for Anycast-RP mechanism;
Fig. 5 is the schematic flow sheet of the first embodiment of the present invention's method of realizing Anycast-RP mechanism;
Fig. 6 is the structural representation that the present invention realizes the system of Anycast-RP mechanism.
Embodiment
The present invention proposes to realize in pim-sm domain the method and system of Anycast-RP mechanism, and basic thought of the present invention is: multicast source sends multicast data flow to SDR, and SDR sends to RP by the logon message of encapsulation; RP adds the SPT of multicast source direction, sets up the SPT of multicast source to multicast receivers; By RPT, switch to SPT, SDR sends to UDR by SPT by multicast data flow.
Below by drawings and the specific embodiments, the present invention is described in further detail again.
Fig. 2 is the schematic flow sheet that the present invention realizes the method for Anycast-RP mechanism, and as shown in Figure 2, the method comprises the following steps:
Step 201 configures RPA and RPCA on each Anycast-RP member;
Concrete, on each Anycast-RP member in pim-sm domain, configure identical RPA, and on each Anycast-RP member, configure a convergent point mailing address (RPCA, RendezvousPoint Contact Address), on each RP, preserve other Anycast-RP members' RPCA, Anycast-RP member can know existence each other and other Anycast-RP members' RPCA like this, so just can intercom mutually; In the present embodiment, the equipment of enabling Anycast-RP is all called Anycast-RP member;
Step 202, multicast source sends multicast data flow to SDR, and SDR sends to RP by the logon message of encapsulation;
Concrete, multicast source sends multicast data flow to SDR, SDR elects a RP according to the RPA of the priority of candidate RP and RP, conventionally the RP selecting is the RP nearest apart from SDR, and this distance refers to physical distance, and the address of this RP is RPA, by searching the singlecast router that destination address is RPA, SDR sends to the outgoing interface direction of RP the logon message that has encapsulated multicast data message, and the source address of this logon message is the address of SDR, and destination address is RPA;
Step 203, RP adds the SPT of multicast source direction, sets up the SPT of multicast source to multicast receivers;
Step 204, switches to SPT by RPT, and SDR sends to UDR by SPT by multicast data flow;
Concrete, in above-mentioned steps, formed the SPT of multicast source to multicast receivers, therefore multicast data flow is not just optimum forward-path along the forward-path of RP and RPT arrival UDR, RPT need to be switched to SPT, after switching, formed the shortest path forwarding tree of multicast source to multicast receivers, SDR sends to UDR by SPT by multicast data flow; Because setting up multicast source after the SPT of multicast receivers, RPT and SPT exist simultaneously, therefore the final jump in multicast routing table utilizes Protocol Independent Multicast (PIM, Protocol Independent Multicast) cut off RPT, the multicast data flow of originally transmitting in RPT just can automatically switch in SPT and transmit;
By RPT, switch to the change that SPT is unicast path, only can cause that the processing logic on RP changes, can not cause the change of the upper logic of SDR and UDR.
Fig. 3 is the concrete grammar of realizing step 203 in Fig. 2, is the SPT that RP of the present invention adds multicast source direction, sets up the schematic flow sheet of multicast source to the method for the SPT of multicast receivers, and as shown in Figure 3, the method comprises the following steps:
Step 301, RP adds the SPT of multicast source direction, to SDR, sends stopped registration messages, to other all Anycast-RP members, forwards logon message;
Concrete, RP receives this logon message of decapsulation after the logon message of encapsulation, and internal layer multicast data message is issued to RPT, initiation adds the SPT of multicast source direction, after RP adds SPT, to SDR, send stopped registration messages, to other all Anycast-RP members, forward logon message;
Step 302, SDR stops sending logon message, and suppresses, after timer expiry, to RP, to send empty logon message in registration; Other Anycast-RP members send stopped registration messages to RP, and add the SPT of multicast source direction;
Concrete, SDR receives after stopped registration messages, refresh registration inhibition timer, and stop sending logon message, when registration suppresses, after timer expiry, to send empty logon message to RP; Other RP in Anycast-RP member receive from decapsulation logon message after the logon message of RP, internal layer multicast data message is issued to RPT, initiation adds the SPT of multicast source direction, after RP adds SPT, to the RP that sends logon message, sends stopped registration messages;
Step 303, RP sends stopped registration messages to SDR, to other all Anycast-RP members, forwards empty logon message;
Concrete, RP receives after the empty logon message of SDR transmission, refreshes (S, G) time-to-live timer time, to SDR, sends stopped registration messages, copies empty logon message, and other RP in Anycast-RP member send the empty logon message copying; (S, G) represents the multicast routing table of multicast group G and multicast source S, comprises multicast source address, multicast group address, incoming interface, outgoing interface list, timer etc.; (S, G) time-to-live timer, for carrying out multicast group routing table update, refreshes (S, G) time-to-live timer time at every turn, just carries out the renewal of multicast group routing table;
SDR receives that, after the stopped registration messages of RP transmission, refresh registration suppresses timer again, and after this timer expiry, SDR can continue to send empty logon message to RP;
Step 304, other RP in Anycast-RP member send stopped registration messages to the RP that sends empty logon message;
Concrete, other RP in Anycast-RP member receive after the empty logon message from RP, to the RP that sends empty logon message, send stopped registration messages, refresh (S, G) time-to-live timer time.
Fig. 4 is the networking diagram that the present invention realizes the embodiment of the method for Anycast-RP mechanism, as shown in Figure 4, RP1 and RP2 belong to the RP of indirectly connected source DR, RP3 belongs to the RP of direct-connected source DR, the direct-connected multicast source S1 of SDR1, the direct-connected multicast receivers USER1 of UDR1, SDR1 and UDR1 and RP1 are configured to have nearest clean culture distance relation, the direct-connected multicast receivers USER2 of UDR2, UDR2 and RP2 are configured to have nearest clean culture distance relation, the direct-connected multicast source S3 of RP3, RP3 is simultaneously as SDR3, below for the RP of indirectly connected source DR and the RP of direct-connected source DR, explanation realizes the method for Anycast-RP mechanism respectively.
Fig. 5 is the schematic flow sheet of the first embodiment of the present invention's method of realizing Anycast-RP mechanism, and this embodiment describes as an example of RP1 in the DR equipment of indirectly connected source example, and as shown in Figure 5, the method comprises the following steps:
Step 501, configuration RPA and RPCA;
Concrete, on RP1, RP2, RP3, configure same RPA, and on RP1, RP2, RP3, configure respectively RPCA1, RPCA2, RPCA3, on each RP, preserve the RPCA of other RP, for example RP1 has preserved the RPCA of RP2 and RP3, RP1 just knows the existence of RP2 and RP3 and knows RP2 and the RPCA of RP3 like this, utilizes RPCA, and RP1 can communicate with RP2 and RP3;
Step 502, sets up the RPT of RP to UDR;
Concrete, multicast receivers USER1 sends the request that adds multicast group G to UDR1, according to clean culture distance relation, the priority of candidate RP and the RPCA of RP of configuration, elect RP1, RP1 is the RP nearest apart from SDR1, UDR1 initiates PIM to the outgoing interface direction of RP1 and adds, the hop-by-hop mode that adds through PIM arrives RP1, sets up the RPT of RP1 to UDR1; Equally, first multicast receivers USER2 sends to UDR2 the request that adds multicast group G, then sets up the RPT of RP2 to UDR2;
Step 503, multicast source S1 sends the data of multicast group G to SDR1, and SDR1 sends logon message to RP1;
Concrete, multicast source S1 sends the data of multicast group G to SDR1, and SDR1 sends to the outgoing interface direction of RP1 the PIM logon message that has encapsulated multicast data message, and the source address of this logon message is SDR1, and destination address is RPA;
Step 504, the multicast data packet forwarding that decapsulation logon message is obtained, to RPT, adds the SPT of multicast source direction, and RP1 sends stopped registration messages to SDR1; Forward logon message to RP2 and RP3;
Concrete, logon message arrives after RP1, because the source address of logon message is not the RPCA of other RP, RP1 judges that this logon message is from SDR, RP1 deblocking takes on the multicast data message in logon message and is forwarded to the RPT having set up, and initiates to add the SPT of multicast source S1 direction; RP1 sends stopped registration messages to SDR1, then continues execution step 509; Because RP1 has preserved the RPCA of other RP, RP1 copies the backward RP2 of logon message and RP3 forwards this logon message, the source address of the logon message being forwarded is RPCA1, destination address is RPCA2 and RPCA3, RP2 receives that logon message just performs step 505, RP3 and receives that logon message just performs step 506;
Step 505, decapsulation logon message obtains multicast data message and is transmitted to RPT, adds the SPT of multicast source direction;
Concrete, logon message arrives after RP2, because the source address of this logon message is the RPCA of RP1, so RP2 judges that this message is from RP1, RP2 deblocking takes on the multicast data message in logon message and is transmitted to the RPT having set up, and send stopped registration messages to RP1, initiate to add the SPT of multicast source S1 direction;
Step 506, RP3 creates routing table, abandons logon message, and sends stopped registration messages to RP1;
Concrete, logon message arrives after RP3, does not set up RPT in step 502 on RP3, so RP3 only creates (S, G) routing table, in order to receiving the RP of message, add fast the SPT of multicast source S1 direction, RP3 abandons logon message, and sends stopped registration messages to RP1;
Step 507, RP1 abandons stopped registration messages;
Concrete, RP1 receives after the stopped registration messages of RP2 and RP3 transmission, because RP1 is not direct-connected source device, does not possess the login state of maintenance machine, so RP1 abandons stopped registration messages;
Step 508, switches to SPT by RPT, and the data of multicast group G arrive UDR by SPT;
Concrete, in above-mentioned steps, formed the SPT of multicast source S1 to multicast receivers UDR1, therefore RPT is not optimum forward-path, RPT need to be switched to SPT, after switching, formed the shortest path forwarding tree of multicast source to multicast receivers, SDR sends to UDR by SPT by the data of multicast group G;
Step 509, SDR1 receives after stopped registration messages, stops sending logon message;
Concrete, SDR1 receives after the stopped registration messages of RP1 transmission, can refresh registration suppress timer, stops sending logon message, after this timer expiry, SDR1 can send empty logon message to RP1;
Step 510, RP1 receives after the empty logon message of SDR1, to SDR1, sends stopped registration messages, forwards empty logon message to RP2 and RP3;
Concrete, RP1 receives after the empty logon message of SDR1, refreshes the time-to-live timer that relevant Multicast Routing is transmitted, and sends stopped registration messages to SDR1, to RP2 and RP3, forwards this sky logon message; SDR1 receives that, after the stopped registration messages of RP1 transmission, refresh registration suppresses timer again, and after this timer expiry, SDR1 can continue to send empty logon message to RP1;
Step 511, RP2 and RP3 refresh time-to-live timer, to RP1, send stopped registration messages;
Concrete, RP2 and RP3 receive after the empty logon message from RP1, refresh the time-to-live timer that relevant Multicast Routing is transmitted, and send stopped registration messages to RP1.
Direct-connected source DR take RP3 as representative, different from RP1 processing method is only, the data that send multicast group G as multicast source S3 are during to SDR3, because SDR3 is identical with RP3 position, so SDR3 directly sends to RP1 and RP2 the logon message that has encapsulated multicast data message, does not need to forward by RP3.
The present invention also provides a kind of system that realizes Anycast-RP mechanism, and Fig. 6 is the structural representation that the present invention realizes the system of Anycast-RP mechanism, and as shown in Figure 6, this system comprises: SDR 31, RP 32, handover module 33, UDR34; Wherein,
This system further comprises:
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a method that realizes Anycast-RP mechanism, is characterized in that, the method comprises:
Multicast source sends the Designated Router of multicast data flow to direct-connected multicast source, and the Designated Router of direct-connected multicast source sends to convergent point by the logon message of encapsulation;
Convergent point adds the shortest path tree of multicast source direction, sets up the shortest path tree of multicast source to multicast receivers;
By multicast share tree, switch to shortest path tree, the Designated Router of direct-connected multicast source sends to multicast data flow by shortest path tree the Designated Router of direct-connected multicast receivers; Wherein,
Described convergent point adds the shortest path tree of multicast source direction, sets up multicast source to the shortest path tree of multicast receivers to be:
Convergent point adds the shortest path tree of multicast source direction, to the Designated Router of direct-connected multicast source, sends stopped registration messages, to other, allly broadcasts arbitrarily convergent point member and forwards logon message; The Designated Router of direct-connected multicast source stops sending logon message, and suppress after timer expiry in registration, to convergent point, send empty logon message, other are broadcast arbitrarily convergent point member and send stopped registration messages to convergent point, and add the shortest path tree of multicast source direction; Wherein,
The Designated Router of described direct-connected multicast source stops sending logon message, and suppress after timer expiry in registration, after sending empty logon message, convergent point also comprises, convergent point sends stopped registration messages to the Designated Router of direct-connected multicast source, to other, allly broadcasts arbitrarily convergent point member and forwards empty logon message; Other convergent points of broadcasting arbitrarily in convergent point member send stopped registration messages to the convergent point that sends empty logon message.
2. method according to claim 1, is characterized in that, the method further comprises:
Each broadcasting arbitrarily, on convergent point member, configure convergent point address and convergent point mailing address.
3. method according to claim 2, is characterized in that, describedly each broadcasting arbitrarily, configures convergent point address and convergent point mailing address is specially on convergent point member:
Each broadcasting arbitrarily, on convergent point member, configure identical convergent point address, and configure a convergent point mailing address each broadcasting arbitrarily on convergent point member, on each convergent point, preserve other and broadcast arbitrarily convergent point member's convergent point mailing address.
4. method according to claim 1, is characterized in that, described multicast source sends the Designated Router of multicast data flow to direct-connected multicast source, and the Designated Router of direct-connected multicast source sends to convergent point to be specially the logon message of encapsulation:
Multicast source sends the Designated Router of multicast data flow to direct-connected multicast source, according to the convergent point address of the priority of candidate's convergent point and convergent point, elect a convergent point, by searching the singlecast router that destination address is convergent point address, the Designated Router of direct-connected multicast source sends to the outgoing interface direction of convergent point the logon message that has encapsulated multicast data message.
5. a system that realizes Anycast-RP mechanism, is characterized in that, this system comprises: the Designated Router of the Designated Router of direct-connected multicast source, convergent point, handover module, direct-connected multicast receivers, wherein,
The Designated Router of direct-connected multicast source, the multicast data flow sending for receiving group source, and the logon message of encapsulation is sent to convergent point; By shortest path tree, multicast data flow is sent to the Designated Router of direct-connected multicast receivers;
Convergent point, for receiving the logon message of encapsulation, and adds the shortest path tree of multicast source direction, sets up the shortest path tree of multicast source to multicast receivers;
Handover module, for switching to shortest path tree by multicast share tree;
The Designated Router of direct-connected multicast receivers, the multicast data flow sending by shortest path tree for receiving Designated Router; Wherein,
Convergent point adds the shortest path tree of multicast source direction, sets up multicast source to the shortest path tree of multicast receivers to be:
Convergent point adds the shortest path tree of multicast source direction, to the Designated Router of direct-connected multicast source, sends stopped registration messages, to other, allly broadcasts arbitrarily convergent point member and forwards logon message; The Designated Router of direct-connected multicast source stops sending logon message, and suppress after timer expiry in registration, to convergent point, send empty logon message, other are broadcast arbitrarily convergent point member and send stopped registration messages to convergent point, and add the shortest path tree of multicast source direction; Wherein,
The Designated Router of described direct-connected multicast source stops sending logon message, and suppress after timer expiry in registration, after sending empty logon message, convergent point also comprises, convergent point sends stopped registration messages to the Designated Router of direct-connected multicast source, to other, allly broadcasts arbitrarily convergent point member and forwards empty logon message; Other convergent points of broadcasting arbitrarily in convergent point member send stopped registration messages to the convergent point that sends empty logon message.
6. system according to claim 5, is characterized in that, this system further comprises:
Configuration module, for configuring convergent point address and convergent point mailing address each broadcasting arbitrarily on convergent point member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140592.9A CN101808004B (en) | 2010-03-23 | 2010-03-23 | Method and system for realizing Anycast-RP mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140592.9A CN101808004B (en) | 2010-03-23 | 2010-03-23 | Method and system for realizing Anycast-RP mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101808004A CN101808004A (en) | 2010-08-18 |
| CN101808004B true CN101808004B (en) | 2014-04-30 |
Family
ID=42609625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010140592.9A Expired - Fee Related CN101808004B (en) | 2010-03-23 | 2010-03-23 | Method and system for realizing Anycast-RP mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101808004B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951344B (en) * | 2010-09-25 | 2012-09-05 | 北京星网锐捷网络技术有限公司 | Multicast path switching method and device and network equipment |
| CN103503370A (en) * | 2011-10-26 | 2014-01-08 | 华为技术有限公司 | Load decreasing method and apparatus |
| CN102316124B (en) * | 2011-10-28 | 2015-05-20 | 杭州华三通信技术有限公司 | Registration method and equipment for terminal equipment |
| CN103650437B (en) * | 2013-06-28 | 2016-11-16 | 华为技术有限公司 | Anycast service registration, implementation method and device, switching equipment and system |
| CN103401788B (en) * | 2013-07-30 | 2016-12-07 | 杭州华三通信技术有限公司 | A kind of SPT method for building up and equipment |
| CN103516548B (en) * | 2013-09-26 | 2017-02-15 | 杭州华三通信技术有限公司 | RP equipment management method and equipment |
| CN103634219B (en) * | 2013-11-27 | 2017-03-08 | 杭州华三通信技术有限公司 | A kind of maintaining method of Anycast Rendezvous Point Anycast RP and device |
| CN104202240A (en) * | 2014-07-30 | 2014-12-10 | 上海斐讯数据通信技术有限公司 | Method of accelerating RP (Rendezvous Point) switchover |
| CN107342938B (en) * | 2016-04-29 | 2020-11-03 | 华为技术有限公司 | Method for switching from RPT to SPT and PE equipment |
| CN107547350B (en) * | 2017-08-02 | 2020-09-08 | 新华三技术有限公司 | Traffic processing method and device |
| CN108234325B (en) * | 2018-01-10 | 2021-09-07 | 北京知道创宇信息技术股份有限公司 | System based on IP anycast and message forwarding method |
| CN113489642B (en) * | 2021-07-04 | 2023-05-12 | 芯河半导体科技(无锡)有限公司 | PIM-SM source registration optimization method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921490A (en) * | 2006-09-14 | 2007-02-28 | 杭州华为三康技术有限公司 | Method and device for configuring protocol independent multicast rarefaction mode protocol confluence |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766000A (en) * | 2007-06-26 | 2010-06-30 | 传媒专利有限公司 | The method and apparatus of managing multicast group |
-
2010
- 2010-03-23 CN CN201010140592.9A patent/CN101808004B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921490A (en) * | 2006-09-14 | 2007-02-28 | 杭州华为三康技术有限公司 | Method and device for configuring protocol independent multicast rarefaction mode protocol confluence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101808004A (en) | 2010-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101808004B (en) | Method and system for realizing Anycast-RP mechanism | |
| KR100503690B1 (en) | Mobile communication system, Mobile communication method, Radio base station, Mobile system and, Computer readable recording medium | |
| CN102137000B (en) | Method, device and system for establishing switching multicast distribution tree | |
| CN113014496B (en) | Central control-based PIM-SSM multicast label routing method | |
| KR101523685B1 (en) | Multipath overlay network and its multipath management protocol | |
| CN103916905A (en) | Multicast source registering and multicast path establishing method and device | |
| CN106470162B (en) | A kind of method of multicasting and device of service message | |
| CN100583800C (en) | Method for multicast employing single static bidirectional sharing tree in flexible wire type tunnel | |
| CN101291240B (en) | Multicast flow transmission method and system | |
| US20020191558A1 (en) | Distributed soft handoff among IP-based base stations | |
| CN101645790B (en) | Switching-over method, device and system of multicast distribution tree | |
| CN102638389A (en) | Redundancy backup method and system of TRILL (Transparent Interconnection over Lots of Links) network | |
| CN101247253A (en) | Multi-cast transmission method based on virtual distribution network in IP network | |
| JP2012529198A (en) | Method and apparatus at multiple rendezvous points for co-processing multicast traffic from mobile multicast sources | |
| CN112929275B (en) | Central control-based PIM-SM multicast label routing method | |
| CN102598586A (en) | Method and devices for dealing multicast | |
| CN102801632A (en) | Unified electoral method of PIM-SM (Protocol Independent Multicast-Sparse Mode) designated router and IGMP (Internet Group Management Protocol) querier | |
| CN109981308A (en) | Message transmitting method and device | |
| WO2012083844A1 (en) | Method of transferring multicast data, updating method of multicast tree, system and device thereof | |
| CN104579981B (en) | A kind of multicast data packet forwarding method and apparatus | |
| CN102984070A (en) | Method for realizing data forwarding through unnumbered interface of Ethernet | |
| CN102111279B (en) | Method and equipment for transmitting multicast data | |
| WO2022017432A1 (en) | Multicast packet sending method, apparatus, and system | |
| CN110999230B (en) | Method, network equipment and system for transmitting multicast message | |
| CN101610200A (en) | Multicast path by changing method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20190323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |