CN1744574A - Method for multicasting message to traverse non multicasting network and its applied network system - Google Patents
Method for multicasting message to traverse non multicasting network and its applied network system Download PDFInfo
- Publication number
- CN1744574A CN1744574A CNA2005100958416A CN200510095841A CN1744574A CN 1744574 A CN1744574 A CN 1744574A CN A2005100958416 A CNA2005100958416 A CN A2005100958416A CN 200510095841 A CN200510095841 A CN 200510095841A CN 1744574 A CN1744574 A CN 1744574A
- Authority
- CN
- China
- Prior art keywords
- address
- multicast
- message
- multicasting
- network
- 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.)
- Granted
Links
Images
Abstract
The method includes: first marginal network device maps multicast address in multicast message into unicast address; the said unicast address is address of second marginal network device; through non-multicast network, the first marginal network device forwards the mapped message of possessing unicast address to the second marginal network device; the second marginal network device inverse maps unicast address in the said message to original multicast address. The invention also discloses network device and network system applicable to the method. By using the invention, multicast message can pass through all non-multicast networks under condition without changing length of message. The invention does not involve on modifying standard protocol and process flow. Advantages are: simple and suitable to network in all types.
Description
Technical field
The present invention relates to the multicast field of Networks and Communications, relate in particular to a kind of method of multicasting message to traverse non multicasting network and use the network equipment of this method.
Background technology
Flourishing day by day along with the emerging services such as (Internet Protocol Television, IPTVs) of the increased popularity of multicast service, particularly IPTV, trans-regional multicast service is gained popularity also.But Internet (the Internet) has developed decades, and there are various networks in actual networking, wherein also comprises the non multicasting network of not supporting multicast.
Because multicast message has D class address different and unicast message, when multicast message passes through non multicasting network, multicast message will spread unchecked in this network range everywhere with the form of broadcasting, and wherein the network equipment is impacted, and cause the wherein unnecessary consumption of bandwidth resources.And if run into the routing device of not supporting multicast routing protocol, multicast message can't correctly be transmitted.
In the prior art, in order to make multicasting message to traverse non multicasting network, adopt following several method usually:
Change unicast routing table: the various aspects that this can relate to network topology seldom are used;
Adopt static multicast routing table and MBGP (Multiprotocol Border Gateway Protocol, the multi-protocols border gateway protocol) routing table: this method need be done relevant configuration on each routing device of multicast message process, workload is bigger, and must think over topological structure; In addition, as long as wherein a routing device is not supported static multicast or MBGP agreement, just can not adopt this method;
Adopt DVMRP (Distance Vector Multicast Routing Protocol, Distance Vector Multicast Routing Protocol) routing table: this method needs the routing device of multicast message process to support the DVMRP multicast routing protocol, does not have versatility;
Adopt the tunnel: multicast message is packaged into an IP message again at the inlet of non multicasting network, seals off after passing non multicasting network and revert to multicast message again, this is the maximum method of available technology adopting.What multicast data message carried usually is the video display streams, and message length is bigger usually.And when encapsulating again, also need to increase the added field of message, and cause the multicast data message super large, must be when the length of message surpasses the MTU length that the equipment outgoing interface allows with message fragment.This method is very easy to cause the burst of message, then can cause bust this for being provided with the message that does not allow burst.
Summary of the invention
The present invention will solve depends on the function of routing device in the non multicasting network when being multicasting message to traverse non multicasting network or causes the problem of multicast message burst.
The method of multicasting message to traverse non multicasting network of the present invention, multicast message arrives the second edge network equipment from the first edge network equipment, pass the non multicasting network between the two, wherein edge network equipment connects multicast network and non multicasting network, said method comprising the steps of:
The first edge network equipment is mapped as unicast address with the multicast address in the multicast message; Described unicast address is the address of the second edge network equipment;
The message that will have unicast address after the first edge network equipment will shine upon is forwarded to the second edge network equipment by non multicasting network;
The second edge network equipment is original multicast address with the unicast address inverse mapping in the described message.
Preferably, described method also comprises: the mapping relations that multicast address and unicast address are set on the first edge network equipment; The inverse mapping relation of unicast address and multicast address is set on the second edge network equipment.
Preferably, described method also comprises:
After the first edge network equipment receives multicast message, send the unicast address request for allocation, wherein carry the multicast address of multicast message to the second edge network equipment;
The second edge network equipment distributes unicast address for this multicast address, and unicast address is sent to the first edge network equipment.
Preferably, the interface that is connected with non multicasting network with the first edge network equipment of described multicast message is an outgoing interface;
Described unicast address is specially the Loopback loopback interface address of the second edge network equipment.
Preferably, described edge network equipment is network layer device; Described interface comprises the logic interfacing of network layer device.
Preferably, described multicast message comprises multicast protocol message and multicast data message;
Described method also comprises: the value of the time-to-live ttl field in the first edge network apparatus modifications multicast protocol message, make its be not less than in non multicasting network from first edge network equipment to the second edge network equipment the network layer device number of process.
A kind of network system provided by the invention comprises the first edge network equipment and the second edge network equipment that connect multicast network and non multicasting network, and wherein non multicasting network couples together described two edge network equipment, it is characterized in that:
The first edge network equipment sends after being used for the multicast address in the multicast message is mapped as the unicast address of the second edge network equipment; Described multicast message is an outgoing interface with the interface of the first edge network equipment and non multicasting network;
Non multicasting network is used for the message after the map addresses is forwarded to the second edge network equipment;
It is original multicast address that the second edge network equipment is used for the unicast address inverse mapping in the described message.
The present invention also provides a kind of network equipment, comprises the interface that connects multicast network and non multicasting network respectively, it is characterized in that, also comprises address mapping module and address memory module, wherein:
The address memory module is used for being provided with and storing the corresponding relation of multicast address and unicast address;
It will be that multicast address in the multicast message of outgoing interface is mapped as corresponding unicast address with the interface that connects non multicasting network that address mapping module is used for, and sends it to outgoing interface.
Preferably, the described network equipment also comprises protocol address inverse mapping module, and being used for to be that unicast address inverse mapping in the protocol massages of incoming interface is a multicast address corresponding in the memory module of address with the interface that connects non multicasting network.
The another kind of network equipment provided by the invention comprises the interface that connects multicast network and non multicasting network respectively, it is characterized in that, also comprises address inverse mapping module and address memory module, wherein:
The address memory module is used for being provided with and storing the corresponding relation of multicast address and unicast address;
It will be that unicast address in the unicast message of incoming interface is mapped as corresponding multicast address with the unicast address of address memory module storage that address inverse mapping module is used for, and forward it to the interface that is connected with multicast network.
Preferably, the described network equipment also comprises the protocol address mapping block, being used for will be that multicast address in the multicast protocol message of outgoing interface is mapped as unicast address corresponding in the memory module of address with the interface that connects non multicasting network, and this protocol massages is sent to outgoing interface.
Among the present invention, before passing through non multicasting network, the multicast address of multicast message is mapped as unicast address, when this message arrives the outlet of non multicasting network, unicast address is reverted to original multicast address again, thereby make multicast message can pass through all non multicasting networks under the condition that does not change message length, the present invention does not simultaneously relate to the modification of standard agreement and handling process, realize simple and conveniently, be applicable to the network of any kind.
Description of drawings
Fig. 1 is the structure chart of exemplary networked system among the present invention;
Fig. 2 is the flow chart of the method for multicasting message to traverse non multicasting network of the present invention;
Fig. 3 is a kind of example structure figure of the first edge network equipment among the present invention;
Fig. 4 is a kind of example structure figure of the second edge network equipment among the present invention.
Embodiment
In TCP/IP (Transfer Control Protocol/Internet Protocol, transmission control protocol/Internet protocol) agreement, will be defined as D class address with 32 IP addresses of binary one 110 beginnings, be specifically designed to multicast service.The multicast address that multicast protocol message that transmits in network and multicast data message all have the D class.
In the network shown in fig. 1, it between the multicast network 110 and 130 non multicasting network 120 of not supporting multicast, wherein multicast network 110 is connected with the first edge network equipment 210 with non multicasting network 120, and multicast network 130 is connected with the second edge network equipment 220 with non multicasting network 120.The first edge network equipment 210 and the second edge network equipment 220 are all supported multicast.A multicast source is arranged in the multicast network 110, and the node that belongs to same multicast group with this multicast source is arranged in the multicast network 130, then the multicast message of multicast network 110 transmissions will be forwarded to non multicasting network 120 by the first edge network equipment 210, attempt to arrive the second edge network equipment, be forwarded to multicast network 130 again by non multicasting network 120.
Why multicast message can not directly pass through non multicasting network 120, be because the network equipment in the non multicasting network 120 can only correctly E-Packet according to unicast address, and multicast address belongs to unknown address to it, and content of message does not then influence repeating process.Thereby in the present invention, by making it pass through non multicasting network 120 for the correct unicast address of multicast message configuration.
Any two multicast networks that connect by non multicasting network can be reduced to structure shown in Figure 1, so hereinafter the method for multicasting message to traverse non multicasting network of the present invention will be described with network configuration shown in Figure 1.
Figure 2 shows that the flow chart of the method for the invention.At step S010, be the corresponding unicast address of multicast address configuration that need have by the multicast message that non multicasting network is transmitted.Because multicast message should arrive the second edge network equipment from the first edge network equipment, thereby the unicast address that is disposed should be the local interface address of the second edge network equipment.
At step S020, the interface that is connected with non multicasting network with the first edge network equipment is that the multicast message of outgoing interface arrives the first edge network equipment.
At step S030, the first edge network equipment is mapped as corresponding unicast address with the multicast address in the multicast message, and in other words, the first edge network equipment is revised as corresponding unicast address with multicast address.Afterwards, the message after the map addresses is transmitted from the interface that is connected with non multicasting network.
Under normal conditions, the first edge network equipment and the second edge network equipment are network layer devices, and connect by other network layer devices in the non multicasting network between the two.In the network layer header of TCP/IP message, TTL (Time To Live, time-to-live) field is arranged, wherein be provided with the network layer device number that this message can pass through.Message is every, and ttl value subtracts 1 through a network layer device, and when ttl value reduced to 0, this message was dropped.
Comprise multicast protocol message and multicast data message in the multicast message, the network layer device quantity that multicast data message will pass through is quite big, and ttl field all can be set to bigger numerical value basically; But the multicast protocol message that has only transmits between adjacent network layer device, and its ttl field is generally 1.For such multicast protocol message, in order to make it can pass through non multicasting network, answer execution in step S040, by the ttl field of multicast protocol message after the first edge network apparatus modifications map addresses, the network layer device number of process when making the value of ttl field be not less than by non multicasting network.
At step S050, the message after the map addresses is forwarded to the second edge network equipment according to its unicast address in non multicasting network.As previously mentioned, the message after the map addresses is an incoming interface with the interface of the second edge network equipment and non multicasting network, and the forwarding by non multicasting network arrives this interface.
At step S060, the unicast address inverse mapping that the second edge network equipment will shine upon in the message of back is original multicast address.Message after the mapping is an incoming interface with the interface of the second edge network equipment and non multicasting network, the second edge network equipment carries out the address inverse mapping to the message that receives from this interface, the unicast address that is about to this message is revised as original multicast address, and this moment, this message reverted to multicast message.
At step S070, the second edge network equipment is transmitted this multicast message to multicast network.
So far, this multicast message is not being changed message length, message is not being carried out burst, is not being revised non multicasting network and transmit under the condition of handling process and passed non multicasting network.
Always different to the node transmission of receiving multicast data from multicast source with multicast data message, the multicast protocol message often need transmit between the network equipment of supporting multicast.That is to say that having the multicast protocol message need be from second edge network device transmission to the first edge network equipment.Its transmission method is:
Before the second edge network equipment multicast protocol message that will to send with its interface that is connected with non multicasting network be outgoing interface, earlier the multicast address in the multicast protocol message is mapped as the agreement unicast address; Same agreement unicast address is the local interface address of the first edge network equipment;
The ttl field of protocol massages after the second edge network apparatus modifications map addresses, its value is not less than be forwarded to the first edge network equipment the number of network layer device of process, and send this protocol massages;
This protocol massages arrives the first edge network equipment by non multicasting network;
The first edge network equipment is original multicast address with the agreement unicast address inverse mapping in this protocol massages.
As can be seen, the mapping relations of multicast address and unicast address should be unified on two edge network equipment from above-mentioned steps, and step S010 in fact also is a process of setting up multicast address and unicast address corresponding relation on two edge network equipment.In the present invention, recommend to adopt following two kinds of methods:
First static configuration: on two edge network equipment, set up reverse mapping relations respectively, the mapping relations of multicast address and unicast address promptly are set on the first edge network equipment, the inverse mapping relation of unicast address and multicast address is set on the second edge network equipment;
It two is dynamic-configuration: the unicast address pond that dynamic assignment is set on the second edge network equipment; The first edge network equipment is carrying out address transition forward direction second edge network equipment transmission unicast address request for allocation, in order on the second edge network equipment, to set up simultaneously the corresponding relation of unicast address and multicast address, in address assignment request, carry multicast address; Second edge device receives that the request back is the available unicast address in this multicast address distribution clean culture address pool, preserves the corresponding relation of the unicast address of this multicast address and distribution, and unicast address is back to the first edge network equipment.
The dynamic-configuration of unicast address can realize by existing technology, as DHCP (Dynamic HostConfiguration Protocol, DHCP) etc.
As previously mentioned, unicast address is the local interface address of the second edge network equipment.Because the common second edge network equipment also is used for the unicast message of non multicasting network is transmitted simultaneously, for the ease of the second edge network equipment message that will carry out the address inverse mapping is discerned and handled, can be set to Loopback (loopback) interface IP address by unicast address, and make other unicast message transmit by the hardware interface address.The Loopback interface IP address is a kind of in the local address.
For the multicast protocol message that is sent to the first edge network equipment from the second edge network equipment, also can adopt above-mentioned two kinds of methods to set up the corresponding relation of unicast address and multicast address, repeat no more.
Need to prove that the interface of edge network equipment and non multicasting network is a logic interfacing; And the present invention supports all multicast protocols.
After using the above-mentioned method that can make multicasting message to traverse non multicasting network, in the network system shown in Figure 1, the first edge network equipment receives after connecting interface with itself and non multicasting network is the multicast message of outgoing interface, sends this message after the multicast address in this multicast message being mapped as the unicast address of the second edge network equipment; Non multicasting network is forwarded to the second edge network equipment with this message; The second edge network equipment carries out the address inverse mapping to this message, is sent to multicast network after the unicast address in this message is reverted to original multicast address.
Figure 3 shows that a kind of example structure of the first edge network equipment, multicast network interface 310 is the interface that the first edge network equipment is connected with multicast network, non multicasting network interface 330 is the interface that the first edge network equipment is connected with non multicasting network, address mapping module 320 and protocol address inverse mapping module 350 are connected between multicast network interface 310 and the non multicasting network interface 320, and all are connected with address memory module 340.
When non multicasting network interface 330 receives the multicast protocol message, protocol address inverse mapping module 350 is the multicast address of this unicast address correspondence in the address memory module 340 with the unicast address inverse mapping in this protocol massages.
Figure 4 shows that a kind of example structure of the second edge network equipment, non multicasting network interface 410 is the interface that the second edge network equipment is connected with non multicasting network, multicast network interface 430 is the interface that the second edge network equipment is connected with multicast network, address inverse mapping module 420 and protocol address mapping block 450 are connected between non multicasting network interface 410 and the multicast network interface 430, and all are connected with address memory module 440.
Address memory module 440 is used for being provided with and preserving the corresponding relation of multicast address and unicast address; The message that non multicasting network interface 410 will have the unicast address of address memory module 440 storages sends to address inverse mapping module 420, address inverse mapping module 420 is the multicast address of this unicast address correspondence in the address memory module 440 with the unicast address inverse mapping in the message, and the multicast message after the inverse mapping is transferred to multicast network interface 430, send in the multicast network by multicast network interface 430.
To the multicast protocol message that will send by non multicasting network interface 410, protocol address mapping block 450 is mapped as the unicast address of this multicast address correspondence in the address memory module 440 with the multicast address in this protocol massages, and transfers to 410 transmissions of non multicasting network interface.
Below be a preferred embodiment of the present invention, its network configuration sees also Fig. 1.In multicast network 110 multicast source is arranged, the group broadcasting program of its transmission has two, uses multicast address 224.1.1.1 and 224.1.1.2 respectively.The multicast address of the multicast protocol that moves in the network system is 224.0.0.13.The node that receives above-mentioned two group broadcasting programs is arranged in the multicast network 130.The first edge network equipment is network layer device RTA, and the second edge network equipment is network layer device RTB.
The present invention provides two orders under the interface modes of edge network equipment:
First command is used for a multicast address of appointment is mapped as the unicast address of appointment, and this unicast address is a local interface address not supporting the opposite side edge network equipment of multicast feature network; And this name can also be provided with change TTL, so that this order can be used for the multicast protocol message simultaneously.Its order line form is as follows:
ip?map?multicast?group-address?unicast?unicast-address[ttl<ttl>]
Wherein ttl value is an option, for multicast data message, generally need not revise ttl value; For the multicast protocol message, then can revise its ttl value as the case may be.
Second command is used for a multicast address that the unicast address inverse mapping is appointment with appointment.Its order line form is as follows:
ip?antimap?unicast?unicast-address?multicast?group-address
The multicast address that relates on RTB has three.RTB need use three corresponding unicast ip addresss, and RTA need use a unicast ip address of corresponding multicast protocol message.
Configuration loopback interface Loopback1 on RTA, its IP address is 200.1.1.1/32; Configuration loopback interface Looback2 on RTB, and dispose 3 IP address: 200.2.1.1/32,200.2.1.2/32,200.2.1.3/32.In non multicasting network 120, carry out simultaneously the setting or the operation unicast routing protocol of singlecast router, guarantee that these addresses can reach in non multicasting network 120.
Multicast message disposes following mapping relations to being outgoing interface with its interface that is connected with non multicasting network 120 on RTA:
1,224.0.0.13 is mapped to 200.2.1.1, and revises TTL, and the numerical value of modification can be decided according to real network, handles the multicast protocol message that RTA issues RTB:
ip?map?multicast?224.0.0.13?unicast?200.2.1.1?ttl?25
2,224.1.1.1 is mapped to 200.2.1.2, handles one of them group broadcasting program:
ip?map?multicast?224.1.1.1?unicast?200.2.1.2
3,224.1.1.2 is mapped to 200.2.1.3, handles wherein another group broadcasting program:
ip?map?multicast?224.1.1.2?unicast?200.2.1.3
On RTA to being that the unicast message of incoming interface disposes following inverse mapping relation with Loopback1:
200.1.1.1 inverse mapping is to 224.0.0.13, to receive the multicast protocol message from RTB:
ip?antimap?unicast?200.1.1.1?multicast?224.0.0.13
On RTB to being that the unicast message of incoming interface disposes following inverse mapping relation with Loopback2:
1, the 200.2.1.2 inverse mapping is handled one of them group broadcasting program of receiving to 224.1.1.1:
ip?antimap?unicast?200.2.1.2?multicast?224.1.1.1
2, the 200.2.1.3 inverse mapping is handled wherein another group broadcasting program of receiving to 224.1.1.2:
ip?antimap?unicast?200.2.1.3?multicast?224.1.1.2
3, the 200.1.1.2 inverse mapping is to 224.0.0.13, to receive the multicast protocol message from RTA:
ip?antimap?unicast?200.2.1.1?multicast?224.0.0.13
Multicast message disposes following mapping relations to being outgoing interface with its interface that is connected with non multicasting network 120 on RTB:
224.0.0.13 be mapped to 200.1.1.1, and revise TTL, occurrence can be decided according to real network, handles the multicast protocol message that RTB mails to RTA:
ip?map?multicast?224.0.0.13?unicast?200.2.1.1?ttl?25
So when the multicast protocol message transmitted between RTA and RTB, transmit leg became unicast address with multicast address earlier and sends to the other side again; The recipient then reverts to unicast address the multicast address of 224.0.0.13 earlier, handles by the multicast routing protocol of this protocol massages again.
When RTA sent to RTB with two group broadcasting program streams, RTA became unicast address with multicast address earlier, and when sending to RTB, RTB transmits after unicast address being changed into corresponding multicast address again.
As seen, the present invention has the following advantages:
The present invention does not relate to the modification of standard agreement, does not need to revise the forwarding handling process of original non multicasting network, only needs to increase multicast address to unicast address, and perhaps unicast address gets final product to the conversion of multicast address, realizes simple;
The present invention is for the user, disposes simple and clearly, do not need the knowledge of relevant complex protocol;
Because unicast stream can move everywhere, so the present invention is applicable to the non multicasting network that allows multicast message pass through any kind.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (11)
1. the method for a multicasting message to traverse non multicasting network, multicast message arrives the second edge network equipment from the first edge network equipment, passes the non multicasting network between the two, and wherein edge network equipment connects multicast network and non multicasting network, it is characterized in that, may further comprise the steps:
The first edge network equipment is mapped as unicast address with the multicast address in the multicast message; Described unicast address is the address of the second edge network equipment;
The message that will have unicast address after the first edge network equipment will shine upon is forwarded to the second edge network equipment by non multicasting network;
The second edge network equipment is original multicast address with the unicast address inverse mapping in the described message.
2. according to the method for the described multicasting message to traverse non multicasting network of claim 1, it is characterized in that described method also comprises: the mapping relations that multicast address and unicast address are set on the first edge network equipment; The inverse mapping relation of unicast address and multicast address is set on the second edge network equipment.
3. according to the method for the described multicasting message to traverse non multicasting network of claim 1, it is characterized in that described method also comprises:
After the first edge network equipment receives multicast message, send the unicast address request for allocation, wherein carry the multicast address of multicast message to the second edge network equipment;
The second edge network equipment distributes unicast address for this multicast address, and unicast address is sent to the first edge network equipment.
4. according to the method for claim 2 or 3 described multicasting message to traverse non multicasting network, it is characterized in that: the interface that described multicast message is connected with non multicasting network with the first edge network equipment is an outgoing interface;
Described unicast address is specially the Loopback loopback interface address of the second edge network equipment.
5. according to the method for the described multicasting message to traverse non multicasting network of claim 4, it is characterized in that: described edge network equipment is network layer device; Described interface comprises the logic interfacing of network layer device.
6. according to the method for the described multicasting message to traverse non multicasting network of claim 5, it is characterized in that: described multicast message comprises multicast protocol message and multicast data message;
Described method also comprises: the value of the time-to-live ttl field in the first edge network apparatus modifications multicast protocol message, make its be not less than in non multicasting network from first edge network equipment to the second edge network equipment the network layer device number of process.
7. a network system comprises the first edge network equipment and the second edge network equipment that connect multicast network and non multicasting network, and wherein non multicasting network couples together described two edge network equipment, it is characterized in that:
The first edge network equipment sends after being used for the multicast address in the multicast message is mapped as the unicast address of the second edge network equipment; Described multicast message is an outgoing interface with the interface of the first edge network equipment and non multicasting network;
Non multicasting network is used for the message after the map addresses is forwarded to the second edge network equipment;
It is original multicast address that the second edge network equipment is used for the unicast address inverse mapping in the described message.
8. a network equipment comprises the interface that connects multicast network and non multicasting network respectively, it is characterized in that, also comprises address mapping module and address memory module, wherein:
The address memory module is used for being provided with and storing the corresponding relation of multicast address and unicast address;
It will be that multicast address in the multicast message of outgoing interface is mapped as corresponding unicast address with the interface that connects non multicasting network that address mapping module is used for, and sends it to outgoing interface.
9. according to the described network equipment of claim 10, it is characterized in that: the described network equipment also comprises protocol address inverse mapping module, and being used for to be that unicast address inverse mapping in the protocol massages of incoming interface is a multicast address corresponding in the memory module of address with the interface that connects non multicasting network.
10. a network equipment comprises the interface that connects multicast network and non multicasting network respectively, it is characterized in that, also comprises address inverse mapping module and address memory module, wherein:
The address memory module is used for being provided with and storing the corresponding relation of multicast address and unicast address;
It will be that unicast address in the unicast message of incoming interface is mapped as corresponding multicast address with the unicast address of address memory module storage that address inverse mapping module is used for, and forward it to the interface that is connected with multicast network.
11. according to the described network equipment of claim 10, it is characterized in that: the described network equipment also comprises the protocol address mapping block, being used for will be that multicast address in the multicast protocol message of outgoing interface is mapped as unicast address corresponding in the memory module of address with the interface that connects non multicasting network, and this protocol massages is sent to outgoing interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100958416A CN100448228C (en) | 2005-09-02 | 2005-09-02 | Method for multicasting message to traverse non multicasting network and its applied network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100958416A CN100448228C (en) | 2005-09-02 | 2005-09-02 | Method for multicasting message to traverse non multicasting network and its applied network system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1744574A true CN1744574A (en) | 2006-03-08 |
| CN100448228C CN100448228C (en) | 2008-12-31 |
Family
ID=36139774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100958416A Active CN100448228C (en) | 2005-09-02 | 2005-09-02 | Method for multicasting message to traverse non multicasting network and its applied network system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100448228C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008071111A1 (en) * | 2006-12-14 | 2008-06-19 | Huawei Technologies Co., Ltd. | Method, system and router for forwarding multicast data |
| WO2009006817A1 (en) * | 2007-07-05 | 2009-01-15 | Huawei Technologies Co., Ltd. | Information forwarding method and information forwarding apparatus |
| WO2009021464A1 (en) * | 2007-08-15 | 2009-02-19 | Huawei Technologies Co., Ltd. | Method, device and system for realizing multicast service |
| CN101394342A (en) * | 2007-09-20 | 2009-03-25 | 华为技术有限公司 | Method and apparatus for implementing multicast authentication |
| WO2009039785A1 (en) * | 2007-09-20 | 2009-04-02 | Huawei Technologies Co., Ltd. | Method and device for establishing multicasting transmission paths and implementing multicasting transmission |
| WO2009111977A1 (en) * | 2008-03-14 | 2009-09-17 | 华为技术有限公司 | Sending method, system and apparatus for mapping information |
| CN102263695A (en) * | 2011-07-27 | 2011-11-30 | 中兴通讯股份有限公司 | Method and system for passing through LDP (label distribution protocol) network by multicast network |
| WO2012000165A1 (en) * | 2010-06-28 | 2012-01-05 | Huawei Technologies Co., Ltd. | Network entity and method for providing data to at least one user entity in a communication network |
| CN107770221A (en) * | 2016-08-19 | 2018-03-06 | 阿里巴巴集团控股有限公司 | Transmission method, server conversion equipment, client conversion equipment and the system of data |
| CN109218191A (en) * | 2017-07-07 | 2019-01-15 | 中华电信股份有限公司 | System and method for enabling multicast packets to traverse non-multicast networks |
| CN113301446A (en) * | 2020-02-21 | 2021-08-24 | 华为技术有限公司 | Method and device for transmitting multicast service |
| CN114039913A (en) * | 2021-12-28 | 2022-02-11 | 北京天融信网络安全技术有限公司 | Method, device, system, equipment and medium for multicast forwarding |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577248B (en) * | 2009-10-28 | 2016-01-06 | 惠普发展公司，有限责任合伙企业 | For the method and apparatus of the detection of NAT device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3792940B2 (en) * | 1999-06-10 | 2006-07-05 | 富士通株式会社 | Packet multicast delivery system |
| US6611510B2 (en) * | 2001-06-18 | 2003-08-26 | Telcordia Technologies Inc. | Method and system for soft handoff of mobile terminals in IP wireless networks. |
| US6798773B2 (en) * | 2001-11-13 | 2004-09-28 | Nokia, Inc. | Physically scoped multicast in multi-access networks |
| KR20040071200A (en) * | 2001-12-15 | 2004-08-11 | 톰슨 라이센싱 소시에떼 아노님 | Videoconference bandwidth selection mechanism |
| KR20040097455A (en) * | 2003-05-12 | 2004-11-18 | 삼성전자주식회사 | Internet protocol address configuration apparatus and method thereof and service method using the internet protocol address |
-
2005
- 2005-09-02 CN CNB2005100958416A patent/CN100448228C/en active Active
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988507B (en) * | 2006-12-14 | 2011-12-21 | 华为技术有限公司 | Method, system and router for repeating multicast data |
| WO2008071111A1 (en) * | 2006-12-14 | 2008-06-19 | Huawei Technologies Co., Ltd. | Method, system and router for forwarding multicast data |
| WO2009006817A1 (en) * | 2007-07-05 | 2009-01-15 | Huawei Technologies Co., Ltd. | Information forwarding method and information forwarding apparatus |
| US8406231B2 (en) | 2007-07-05 | 2013-03-26 | Huawei Technologies Co., Ltd | Method and device for forwarding information |
| CN101340356B (en) * | 2007-07-05 | 2012-07-11 | 华为技术有限公司 | Method for forwarding information and information forwarding apparatus |
| WO2009021464A1 (en) * | 2007-08-15 | 2009-02-19 | Huawei Technologies Co., Ltd. | Method, device and system for realizing multicast service |
| US8488603B2 (en) | 2007-08-15 | 2013-07-16 | Huawei Technologies Co., Ltd. | Method, apparatus, and system for implementing multicast services |
| CN101369907B (en) * | 2007-08-15 | 2011-09-28 | 华为技术有限公司 | Multicast service implementing method, its apparatus and system |
| WO2009039785A1 (en) * | 2007-09-20 | 2009-04-02 | Huawei Technologies Co., Ltd. | Method and device for establishing multicasting transmission paths and implementing multicasting transmission |
| WO2009039788A1 (en) * | 2007-09-20 | 2009-04-02 | Huawei Technologies Co., Ltd. | A method and apparatus of realizing multicast transmission |
| CN101394342A (en) * | 2007-09-20 | 2009-03-25 | 华为技术有限公司 | Method and apparatus for implementing multicast authentication |
| WO2009111977A1 (en) * | 2008-03-14 | 2009-09-17 | 华为技术有限公司 | Sending method, system and apparatus for mapping information |
| WO2012000165A1 (en) * | 2010-06-28 | 2012-01-05 | Huawei Technologies Co., Ltd. | Network entity and method for providing data to at least one user entity in a communication network |
| CN102263695A (en) * | 2011-07-27 | 2011-11-30 | 中兴通讯股份有限公司 | Method and system for passing through LDP (label distribution protocol) network by multicast network |
| CN107770221A (en) * | 2016-08-19 | 2018-03-06 | 阿里巴巴集团控股有限公司 | Transmission method, server conversion equipment, client conversion equipment and the system of data |
| CN109218191A (en) * | 2017-07-07 | 2019-01-15 | 中华电信股份有限公司 | System and method for enabling multicast packets to traverse non-multicast networks |
| CN113301446A (en) * | 2020-02-21 | 2021-08-24 | 华为技术有限公司 | Method and device for transmitting multicast service |
| CN114039913A (en) * | 2021-12-28 | 2022-02-11 | 北京天融信网络安全技术有限公司 | Method, device, system, equipment and medium for multicast forwarding |
| CN114039913B (en) * | 2021-12-28 | 2023-09-05 | 上海天融信网络安全技术有限公司 | Multicast forwarding method, device, system, equipment and medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100448228C (en) | 2008-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1744574A (en) | Method for multicasting message to traverse non multicasting network and its applied network system | |
| CN101473616B (en) | Method and device f or reliably transferring multicast data | |
| CN1127832C (en) | Block treatment relay agent for providing link layer transmission in one-way wired/radio/satellite modem | |
| CN1303798C (en) | Ip multicast distribution system, streaming data distribution system and program therefor | |
| CN1921457A (en) | Network equipment and message transferring method based on multiple-core processor | |
| CN1744521A (en) | Network equipment management method and network management system | |
| CN101064625A (en) | Method for managing user side equipment through network address translation gateway | |
| CN1863147A (en) | Method for implementing multicast data stream retransmission in virtual special LAN service | |
| CN1845527A (en) | Method and system for providing multicast service in microwave access global intercommunication system | |
| CN1716904A (en) | Group broadcast realizing method based on multiple service transmission platform | |
| CN101030943A (en) | Method for transmitting message and route | |
| CN1866831A (en) | Broadband access device and its application | |
| CN1866904A (en) | Method and apparatus for astringing two layer MAC address | |
| CN101056234A (en) | Method for allocating the address of the intelligent information home electrical appliance in the home network | |
| CN1848807A (en) | Group broadcasting business realizing method | |
| CN1417973A (en) | Method of altering network equipment IP address via network managing equipment | |
| CN1773993A (en) | Session relay equipment and session relay method | |
| CN101052004A (en) | Multicast transmission method based on virtual distribution net in network | |
| CN101043387A (en) | Remote mirror-image realization process, remote monitoring aids and system for realizing remote mirror-image | |
| CN1665235A (en) | A method for traversing subnet and subnet traversing system | |
| CN1863153A (en) | Method of ethernet supporting source specific multicast forwarding and apparatus thereof | |
| CN1612501A (en) | Transmitting data using multi-frames | |
| CN1866905A (en) | Method and apparatus for shaping transmission service stream in network | |
| CN1852249A (en) | Multi-cast broadcasting business realizing method | |
| CN1592250A (en) | Flow medium data multi-point transmission method |
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 | ||
| CP03 | Change of name, title or address |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
|
| CP03 | Change of name, title or address |