CN111526079A - Method and device for establishing tunnel - Google Patents
Method and device for establishing tunnel Download PDFInfo
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- CN111526079A CN111526079A CN202010249198.2A CN202010249198A CN111526079A CN 111526079 A CN111526079 A CN 111526079A CN 202010249198 A CN202010249198 A CN 202010249198A CN 111526079 A CN111526079 A CN 111526079A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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Abstract
The present disclosure provides a method and a device for establishing a tunnel, wherein the method comprises the following steps: receiving routing information sent by a root node, and when determining that a plurality of multicast groups exist in the same VPN, sending a label mapping message carrying a preset identifier to the root node according to the routing information, so that the root node establishes a selective tunnel when receiving the label mapping message carrying the preset identifier. By the method, the situation of tunnel resource waste caused by the establishment of tunnels with the same number between the root node and the leaf nodes according to the number of the multicast groups of the CE equipment under the leaf nodes can be avoided.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for establishing a tunnel.
Background
In MVPN (Multicast Virtual Private Network), when a plurality of Multicast group receivers are connected to a CE device under a leaf node PE device and all belong to different Multicast groups, the root node PE device may establish an equal number of selective tunnels according to the number of Multicast groups for transmitting Multicast packets for the different Multicast groups, however, each Multicast group may generate and occupy one corresponding tunnel, and a plurality of Multicast groups may generate and occupy a plurality of corresponding tunnels. This not only occupies the device resources, but also affects the forwarding efficiency of the device.
Disclosure of Invention
The embodiment of the disclosure provides a method and a device for establishing a tunnel, by which the situation of tunnel resource waste caused by establishing the same number of tunnels according to the number of multicast groups of CE equipment under a leaf node between a root node and the leaf node can be avoided, and the efficiency of forwarding a message by the node equipment is improved.
The embodiment of the disclosure provides a method for establishing a tunnel, which comprises the following steps:
receiving routing information sent by a root node;
and when determining that a plurality of multicast groups exist in the same VPN, sending a label mapping message carrying a preset identifier to a root node according to the routing information, so that the root node establishes a selective tunnel when receiving the label mapping message carrying the preset identifier.
It can be seen from the above embodiments that, when a root node receives a label mapping message carrying a preset identifier, it may be determined that there are multiple different multicast groups in a leaf node that sends the label mapping message under the same VPN, and at this time, the root node may establish a selective tunnel for sending a source multicast packet to the leaf node through the selective tunnel, without establishing a selective tunnel for each multicast group in the leaf node, thereby saving tunnel resources between the root node and the leaf node, and reducing table lookup time and improving packet forwarding efficiency when the root node forwards the multicast packet.
In another embodiment, the determining that a plurality of multicast groups exist in the same VPN specifically includes:
and determining whether a plurality of multicast groups exist in the same VPN or not through communication messages sent by the user equipment connected with the user equipment.
Wherein the communication message includes multicast group information on the user equipment
The embodiment of the present disclosure further provides a method for establishing a tunnel, which is applied to a root node device in an MVPN, and the method includes:
receiving a label mapping message sent by leaf node equipment;
judging whether the label mapping message carries a preset identifier or not;
if the label mapping message carries the label mapping message, a selective tunnel is established according to the VPN corresponding to the label mapping message, and the selective tunnel is used for transmitting the multicast messages of each multicast group under the VPN.
It can be seen from the above embodiments that, when a root node receives a label mapping message carrying a preset identifier, it may be determined that there are multiple different multicast groups in a leaf node that sends the label mapping message under the same VPN, and at this time, the root node may establish a selective tunnel for sending a source multicast packet to the leaf node through the selective tunnel, without establishing a selective tunnel for each multicast group in the leaf node, thereby saving tunnel resources between the root node and the leaf node, and reducing table lookup time and improving packet forwarding efficiency when the root node forwards the multicast packet.
In another embodiment, the establishing a selective tunnel according to the VPN corresponding to the label mapping message specifically includes:
determining VPN information to which a leaf node sending the label mapping message belongs according to the label mapping message;
determining outgoing interface information communicated with the leaf node according to the tag mapping message;
and establishing a selective tunnel according to the corresponding relation between the VPN information and the outlet interface information.
In another embodiment, the method for transmitting a multicast packet belonging to each multicast group in the VPN specifically includes:
when the multicast message belonging to each multicast group under the VPN is sent, an interface is determined according to the VPN and the corresponding relation, and the multicast message is sent through the output interface.
The embodiment of the present disclosure further provides a device for establishing a tunnel, where the device includes:
the first receiving module is used for receiving the routing information sent by the root node;
and the first processing module is used for sending a label mapping message carrying a preset identifier to the root node according to the routing information when determining that a plurality of multicast groups exist in the same VPN, so that the root node establishes a selective tunnel when receiving the label mapping message carrying the preset identifier.
The first processing module is specifically configured to determine whether multiple multicast groups exist in the same VPN according to a communication packet sent by a user equipment connected to the first processing module;
in another apparatus for establishing a tunnel, the method further comprises:
the second receiving module is used for receiving the label mapping message sent by the leaf node equipment;
and the second processing module is used for judging whether the label mapping message carries a preset identifier or not, and if so, establishing a selective tunnel according to the VPN corresponding to the label mapping message and transmitting the multicast messages of each multicast group under the VPN.
The second processing module is specifically configured to determine, according to the tag mapping message, VPN information to which a leaf node that sends the tag mapping message belongs;
determining outgoing interface information communicated with the leaf node according to the tag mapping message;
and establishing a selective tunnel according to the corresponding relation between the VPN information and the outlet interface information.
The second processing module is specifically configured to determine an interface according to the VPN and the correspondence when sending a multicast packet belonging to each multicast group in the VPN, and send the multicast packet through the output interface.
Drawings
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a method for establishing a tunnel according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a method for establishing a tunnel according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
As shown in fig. 1, an MVPN network schematic diagram based on the MLDP mode includes a multicast Source, a root node PE1, a leaf node PE2, and a user equipment CE2, where CE2 includes three multicast receivers ReceiverA, ReceiverB, and ReceiverC, and all the three multicast receivers do not belong to the same multicast group.
When the PE1 device sends an S-PMSI route to the PE2 device, the PE2 device learns from the communication packets with the CE2 that the CE2 has multiple different multicast groups in the same VPN, for example: g1, G2, and G3, then PE2 sends a tag mapping message to PE1, where the tag mapping message may carry address information of G1, G2, and G3, and after receiving the tag mapping message, the PE1 device establishes a tunnel according to the tag mapping message, for example, establishes three tunnels of T (S, G1), T (S, G2), and T (S, G3) for G1, G2, and G3. Subsequently, when the multicast message sent by the Source is transmitted, the multicast message is sent to the PE2 device through the three tunnels, and then the PE2 device sends the multicast message to ReceiverA, ReceiverB and ReceiverC through the CE2 device.
It can be seen from the foregoing embodiments that, in the prior art, a node device (root node, leaf node, etc.) does not consider whether multicast receivers of multiple different multicast groups are in the same VPN in the same device, and the root node device only establishes a tunnel corresponding to each multicast address in the same VPN according to a label mapping message sent by the leaf node device, thereby wasting tunnel resources.
As shown in fig. 2, to solve the above technical problem, the present disclosure provides an embodiment of a method for establishing a tunnel, which is applied to a leaf node device in an MVPN, and includes:
s1, receiving routing information sent by a root node;
and S2, when a plurality of multicast groups exist in the same VPN, sending a label mapping message carrying a preset identifier to the root node according to the routing information, so that the root node establishes a selective tunnel when receiving the label mapping message carrying the preset identifier.
In step S1, the received routing information may be S-PMSI routing information sent by the root node, which is typically sent when the selective tunnel is created, so that the leaf node device receiving the S-PMSI routing information sends a label mapping message to an upper node (eventually reaching the root node) according to the routing information, and when the root node receives the label mapping message, the selective tunnel is established.
In step S2, when it is determined that a plurality of multicast groups exist in the same VPN, specifically, it is determined whether there is a case where the same VPN corresponds to a plurality of multicast groups in the multicast group address recorded by the multicast group address, and if so, it is determined that a plurality of multicast groups exist in the same VPN. For example, in one implementation, a user CE device is connected to a leaf node PE device, wherein the CE device is connected to a plurality of different multicast receivers, and multicast groups corresponding to the plurality of different multicast receivers are different, and the user CE device informs the leaf node PE device of a multicast address of a plurality of multicast receivers connected to the CE device through a communication packet with the leaf node PE device.
In step S2, a label mapping message carrying a preset identifier is sent to the root node according to the routing information, so that when the root node receives the label mapping message carrying the preset identifier, a selective tunnel is established, which specifically includes:
the leaf node equipment can add 1 flag bit in the label mapping message, the flag bit can have two forms of 0 or 1, and when the flag bit is 1, the root node can establish a selective tunnel between the flag bit 1 and the leaf node; or, when the flag bit is 0, the number of tunnels established between the root node and the leaf node is not limited.
Through the embodiment, it can be seen that when a leaf node sends label mapping information, it first determines whether there are multiple different multicast groups in the same VPN, and if so, increases the flag bit 1 in the sent label mapping information, so that a root node receiving the label mapping information only establishes a tunnel reaching the leaf node under the VPN according to the flag bit 1, and thus when the root node sends a multicast packet, the multicast packet can be sent to multicast receivers of multiple different multicast groups in user equipment at the leaf node side through one tunnel, and tunnel resources between the root node and the leaf node are saved.
As shown in fig. 3, the present disclosure also provides an embodiment of a method for establishing a tunnel, where the method is applied to a root node device in an MVPN, and the method includes:
s3, receiving a label mapping message sent by leaf node equipment;
s4, judging whether the label mapping message carries a preset identifier or not;
and S5, if the label mapping message is carried, establishing a selective tunnel according to the VPN corresponding to the label mapping message, and transmitting the multicast message of each multicast group under the VPN.
In steps S3 and S4, the root node receives the label mapping message sent by the leaf node, and determines whether the label mapping message carries a preset identifier, where the preset identifier may be an identifier with a flag bit of 1, and meanwhile, the root node may determine, according to the label mapping message, VPN information to which the leaf node that sends the label mapping message belongs.
In step S5, when the root node determines that the received label mapping message carries flag bit 1, and acquires the VPN information to which the leaf node that sent the label mapping message belongs and the outgoing interface information that communicates with the leaf node, then a corresponding relationship between the VPN and the outgoing interface is established, and a selected tunnel is established according to the corresponding relationship.
When the root node receives the multicast message from the signal source and the VPN information of the multicast message is the VPN of the leaf node, the corresponding selective tunnel can be found according to the corresponding relation, so that the multicast message is sent to the leaf node through the selective tunnel, and then the leaf node sends the multicast message to the user equipment.
It can be seen from the above embodiments that, when the root node establishes the selective tunnel, it may be determined whether multiple multicast receivers of different multicast groups exist in the user equipment accessing the leaf node according to whether the received tag mapping information carries the preset identifier, if so, only one selective tunnel is established in the VPN corresponding to the leaf node, and the multicast packet is sent to the leaf node through the selective tunnel, so that the leaf node sends the multicast packet to different multicast receivers in the user equipment accessing the leaf node, thereby saving tunnel resources between the root node and the leaf node.
To explain the technology of the present disclosure in more detail, the present disclosure further provides an embodiment, as shown in fig. 2, in the MVPN network, a multicast Source, a root node PE1, a leaf node PE2, a leaf node side user device CE2, and multicast receivers Receiver a (hereinafter referred to as a), Receiver B (hereinafter referred to as B), and Receiver C (hereinafter referred to as C) connected to the CE2 are included, where A, B, C all belong to different multicast groups, and for convenience of description, the default A, B, C all belong to the same VPN.
Pe1 sends S-PMSI routing information to PE2 for informing PE2 of the request to establish the tunnel.
And B, after receiving the S-PMSI routing information, the PE2 determines that A, B, C multicast receivers of three different multicast groups exist in the CE2 connected with the PE2.
Pe2 sends a label mapping message to PE1 and adds flag bit 1 to the label mapping message.
And D, the PE1 receives the label mapping message carrying the zone bit 1, acquires the VPN and the output interface corresponding to the label mapping message, establishes the corresponding relation between the VPN and the output interface, and establishes 1 selected tunnel according to the corresponding relation.
E. After receiving the multicast message sent by Source, PE1, if it is determined that the VPN of the multicast message is the same as the VPN in step D, then according to the correspondence in step D, sends the message to PE2 through the selected tunnel established in step D.
After receiving the multicast message, the pe2 sends the message to the CE2, so that the CE2 sends the multicast message to A, B, C.
It can be seen from the above embodiments that, when PE1 receives a label mapping message carrying flag bit 1 sent by PE2, it can be determined that there are multiple different multicast groups in PE2 under the same VPN, at this time, PE1 establishes a selected tunnel with PE2, so that a multicast packet sent by a multicast source can be sent to PE2 through the tunnel, and PE2 sends the multicast packet to receivers of different multicast groups, thereby saving tunnel resources between PE1 and PE2, and improving efficiency of PE1 in forwarding the multicast packet.
Based on the same concept as the method, the present disclosure also provides a device for establishing a tunnel, the device comprising:
the first receiving module is used for receiving the routing information sent by the root node;
and the first processing module is used for sending a label mapping message carrying a preset identifier to the root node according to the routing information when determining that a plurality of multicast groups exist in the same VPN, so that the root node establishes a selective tunnel when receiving the label mapping message carrying the preset identifier.
In another embodiment, the first processing module is specifically configured to determine whether multiple multicast groups exist in the same VPN according to a communication packet sent by a user equipment connected to the first processing module;
wherein, the communication message includes multicast group information on the user equipment.
In another embodiment, the second receiving module is configured to receive a tag mapping message sent by a leaf node device;
and the second processing module is used for judging whether the label mapping message carries a preset identifier or not, and if so, establishing a selective tunnel according to the VPN corresponding to the label mapping message and transmitting the multicast messages of each multicast group under the VPN.
In another embodiment, the second processing module is specifically configured to determine, according to the tag mapping message, VPN information to which a leaf node that sends the tag mapping message belongs;
determining outgoing interface information communicated with the leaf node according to the tag mapping message;
and establishing a selective tunnel according to the corresponding relation between the VPN information and the outlet interface information.
In another embodiment, the second processing module is configured to determine whether the label mapping message carries a preset identifier, and if the label mapping message carries the preset identifier, establish a selective tunnel according to a VPN corresponding to the label mapping message, where the selective tunnel is used to transmit multicast packets of each multicast group that belongs to the VPN.
In the several embodiments provided in the present application, it should be understood that the disclosed method and electronic device can be implemented in other manners. The embodiments described above are merely illustrative, and the flowcharts and block diagrams in the figures, for example, illustrate the architecture, functionality, and operation of possible implementations of methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Finally, it should be noted that: the above-mentioned embodiments are merely specific embodiments of the present disclosure, which are used for illustrating the technical solutions of the present disclosure and not for limiting the same, and the scope of the present disclosure is not limited thereto, and although the present disclosure is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive of the technical solutions described in the foregoing embodiments or equivalent technical features thereof within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present disclosure, and should be construed as being included therein. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A method for establishing a tunnel, the method being applied to a leaf node device in an MVPN, the method comprising:
receiving routing information sent by a root node;
and when determining that a plurality of multicast groups exist in the same VPN, sending a label mapping message carrying a preset identifier to a root node according to the routing information, so that the root node establishes a selective tunnel when receiving the label mapping message carrying the preset identifier.
2. The method according to claim 1, wherein when determining that a plurality of multicast groups exist in the same VPN, specifically comprising:
determining whether a plurality of multicast groups exist in the same VPN or not through a communication message sent by user equipment connected with the user equipment;
wherein, the communication message includes multicast group information on the user equipment.
3. A method for establishing a tunnel, the method being applied to a root node device in an MVPN, the method comprising:
receiving a label mapping message sent by leaf node equipment;
judging whether the label mapping message carries a preset identifier or not;
if the label mapping message carries the label mapping message, a selective tunnel is established according to the VPN corresponding to the label mapping message, and the selective tunnel is used for transmitting the multicast messages of each multicast group under the VPN.
4. The method according to claim 3, wherein the establishing a selective tunnel according to the VPN corresponding to the label mapping message specifically includes:
determining VPN information to which a leaf node sending the label mapping message belongs according to the label mapping message;
determining outgoing interface information communicated with the leaf node according to the tag mapping message;
and establishing a selective tunnel according to the corresponding relation between the VPN information and the outlet interface information.
5. The method according to claim 4, wherein the step of transmitting the multicast packet belonging to each multicast group under the VPN specifically includes:
when the multicast message belonging to each multicast group under the VPN is sent, an interface is determined according to the VPN and the corresponding relation, and the multicast message is sent through the output interface.
6. An apparatus for establishing a tunnel, the apparatus comprising:
the first receiving module is used for receiving the routing information sent by the root node;
and the first processing module is used for sending a label mapping message carrying a preset identifier to the root node according to the routing information when determining that a plurality of multicast groups exist in the same VPN, so that the root node establishes a selective tunnel when receiving the label mapping message carrying the preset identifier.
7. The apparatus of claim 6,
the first processing module is specifically configured to determine whether multiple multicast groups exist in the same VPN or not through a communication packet sent by a user equipment connected to the first processing module;
wherein, the communication message includes multicast group information on the user equipment.
8. An apparatus for establishing a tunnel, the apparatus comprising:
the second receiving module is used for receiving the label mapping message sent by the leaf node equipment;
and the second processing module is used for judging whether the label mapping message carries a preset identifier or not, and if so, establishing a selective tunnel according to the VPN corresponding to the label mapping message and transmitting the multicast messages of each multicast group under the VPN.
9. The apparatus of claim 8,
the second processing module is specifically configured to determine, according to the tag mapping message, VPN information to which a leaf node that sends the tag mapping message belongs;
determining outgoing interface information communicated with the leaf node according to the tag mapping message;
and establishing a selective tunnel according to the corresponding relation between the VPN information and the outlet interface information.
10. The apparatus of claim 9,
the second processing module is specifically configured to determine an interface according to the VPN and the correspondence when sending a multicast packet belonging to each multicast group in the VPN, and send the multicast packet through the output interface.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060209831A1 (en) * | 2005-03-21 | 2006-09-21 | Cisco Technology, Inc. | VPN services using address translation over an IPv6 network |
| CN102487351A (en) * | 2010-12-01 | 2012-06-06 | 中兴通讯股份有限公司 | Establishment method of end-to-end multicast label switched path, apparatus thereof and system |
| CN103716244A (en) * | 2013-12-27 | 2014-04-09 | 杭州华三通信技术有限公司 | Method and device enabling extra-VPN forwarding of multicasts to be achieved |
| CN104780090A (en) * | 2015-04-27 | 2015-07-15 | 杭州华三通信技术有限公司 | VPN multicast transmission method and device PE equipment |
| CN106209559A (en) * | 2016-07-12 | 2016-12-07 | 华为技术有限公司 | A kind of method and apparatus setting up Multicast Tunnel |
| CN106230730A (en) * | 2016-07-28 | 2016-12-14 | 杭州华三通信技术有限公司 | A kind of multicast transmission method and device |
| CN107276904A (en) * | 2016-03-31 | 2017-10-20 | 丛林网络公司 | Distribute the method and the network equipment of multicast service |
| CN107547377A (en) * | 2017-07-19 | 2018-01-05 | 新华三技术有限公司 | A kind of multicast traffic transport method and apparatus |
-
2020
- 2020-03-31 CN CN202010249198.2A patent/CN111526079B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060209831A1 (en) * | 2005-03-21 | 2006-09-21 | Cisco Technology, Inc. | VPN services using address translation over an IPv6 network |
| CN102487351A (en) * | 2010-12-01 | 2012-06-06 | 中兴通讯股份有限公司 | Establishment method of end-to-end multicast label switched path, apparatus thereof and system |
| CN103716244A (en) * | 2013-12-27 | 2014-04-09 | 杭州华三通信技术有限公司 | Method and device enabling extra-VPN forwarding of multicasts to be achieved |
| CN104780090A (en) * | 2015-04-27 | 2015-07-15 | 杭州华三通信技术有限公司 | VPN multicast transmission method and device PE equipment |
| CN107276904A (en) * | 2016-03-31 | 2017-10-20 | 丛林网络公司 | Distribute the method and the network equipment of multicast service |
| CN106209559A (en) * | 2016-07-12 | 2016-12-07 | 华为技术有限公司 | A kind of method and apparatus setting up Multicast Tunnel |
| CN106230730A (en) * | 2016-07-28 | 2016-12-14 | 杭州华三通信技术有限公司 | A kind of multicast transmission method and device |
| CN107547377A (en) * | 2017-07-19 | 2018-01-05 | 新华三技术有限公司 | A kind of multicast traffic transport method and apparatus |
Non-Patent Citations (3)
| Title |
|---|
| C. METZ: "Multiprotocol label switching and IP. Part 2. Multicast virtual private networks", 《IEEE INTERNET COMPUTING》 * |
| GONZALO M. FERNÁNDEZ; DAVID LARRABEITI; JUAN A. DE LA FUENTE: "On forwarding state control in VPN multicast based on MPLS multipoint LSPs", 《2012 IEEE 13TH INTERNATIONAL CONFERENCE ON HIGH PERFORMANCE SWITCHING AND ROUTING》 * |
| 熊思: "虚拟专用网的组播技术研究", 《中国优秀硕士学位论文全文数据库 (信息科技辑)》 * |
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