CN114363102A - Multicast implementation method and device based on multicast and VXLAN linkage - Google Patents
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Abstract
The invention discloses a multicast realization method and a device based on multicast and VXLAN linkage, wherein the method comprises the steps that an exchange chip in a VXLAN tunnel endpoint receives a multicast message after encapsulation, and the multicast message is unpacked and then uploaded to a CPU; the CPU analyzes the multicast message to obtain a VXLAN network identifier, and searches a VXLAN tunnel information table according to the VXLAN network identifier to obtain tunnel information; and the CPU searches the VXLAN items according to the tunnel information, obtains the next hop of the VXLAN tunnel, and further issues the multicast items containing the next hop of the VXLAN tunnel to the switching chip. The invention can directly acquire the next hop of the VXLAN tunnel according to the tunnel information after the VXLAN is unpacked, so that the multicast message can be normally forwarded.
Description
Technical Field
The invention relates to the technical field of network communication, in particular to a multicast implementation method based on multicast and VXLAN linkage and a device for implementing the method.
Background
IGMP Snooping (Internet Group Management Protocol Snooping) is an IPv4 two-layer multicast Protocol, and maintains the outgoing interface information of multicast packets by intercepting the multicast Protocol packets sent between the three-layer multicast device and the user host, thereby managing and controlling the forwarding of multicast data packets at the data link layer. In the practical application process, the second-layer multicast acquires the next-hop multicast member by inquiring the multicast forwarding table.
When two groups of multicast need to be forwarded across networks, the VLXAN tunneling technique is usually adopted to implement the forwarding across networks. The VXLAN Tunnel technology can enable the multicast message to be transmitted across the network through a Tunnel (Tunnel), and the occupation of the flooding flow on the bandwidth resources of the core network is saved by adopting a multicast routing mode. When the multicast message is forwarded across networks, VXLAN encapsulation processing is firstly carried out, cross-network forwarding is realized through a tunnel after encapsulation is finished, decapsulation processing is carried out after the purpose is reached, and the multicast message can be obtained, namely, in a multicast routing mode, all VXLAN Tunnel Endpoints (VTEP) in the same VXLAN are added into the same multicast group, and a multicast forwarding table entry is established for the multicast group on an IP core network by adopting a multicast routing protocol (such as PIM). After receiving the flooding flow, the VXLAN tunnel endpoint not only floods in the local site, but also encapsulates the multicast destination IP address for the VXLAN tunnel endpoint, and the encapsulated message is forwarded to the VXLAN tunnel endpoint at the far end according to the established multicast forwarding table. However, in practical applications, the layer two multicast obtains the next-hop multicast member by querying the multicast forwarding table. When the multicast message is subjected to VXLAN decapsulation, a next-hop multicast member also needs to be acquired to forward the message. Since VXLAN cannot directly obtain the next-hop multicast member, forwarding of the multicast message is affected.
Disclosure of Invention
The invention aims to provide a multicast implementation method based on multicast and VXLAN linkage, which can directly acquire the next hop of a VXLAN tunnel according to tunnel information after the VXLAN is unpacked, so that multicast messages can be normally forwarded. Meanwhile, a device for realizing the method is also provided.
In order to achieve the above object, the present invention provides a multicast implementation method based on multicast and VXLAN linkage, wherein the method comprises:
the switching chip in the VXLAN tunnel endpoint receives the encapsulated multicast message, decapsulates the multicast message and uploads the decapsulated multicast message to the CPU;
the CPU analyzes the multicast message to obtain a VXLAN network identifier, and searches a VXLAN tunnel information table according to the VXLAN network identifier to obtain tunnel information, wherein the VXLAN tunnel information table is used for storing the mapping relation between the VXLAN network identifier and the tunnel information;
and the CPU searches VXLAN items according to the tunnel information to obtain the next hop of the VXLAN tunnel, and further issues a multicast item containing the next hop of the VXLAN tunnel to a switching chip, wherein the VXLAN items are used for storing the mapping relation between the tunnel information and the next hop of the VXLAN tunnel.
Preferably, the tunnel information includes a source IP address, a destination IP address, and a virtual tunnel port.
Preferably, the VXLAN tunnel information table is established by the following steps:
when a VXLAN tunnel is established, a virtual tunnel port is established for the VXLAN tunnel, and the mapping relation between a VXLAN network identifier and a VLAN ID is established;
establishing an index relation between the VXLAN network identification and the source IP address, the destination IP address and the tunnel port;
and storing the VXLAN network identifier, the source IP address, the destination IP address and the tunnel port as keywords in a table to form a VXLAN tunnel information table.
Preferably, the mapping relationship between the tunnel information in the VXLAN entry and the next hop of the VXLAN tunnel is established as follows:
when transmitting the VXLAN item, establishing a mapping relation between the next hop of the VXLAN tunnel and the VXLAN network identifier;
and establishing an index relationship between the next hop of the VXLAN tunnel and VXLAN network identification, a source IP address, a destination IP address and a tunnel port.
Preferably, the switch chip enables the multicast message after decapsulation to be reported to the CPU through an enable field.
The invention also discloses a multicast implementation method and a device based on the linkage of multicast and VXLAN, wherein the device comprises the following steps:
the first processing module is used for enabling the switching chip in the VXLAN tunnel endpoint to receive the encapsulated multicast message, decapsulate the multicast message and upload the decapsulated multicast message to the CPU;
the second processing module is used for enabling the CPU to analyze the multicast message, obtaining a VXLAN network identifier, searching a VXLAN tunnel information table according to the VXLAN network identifier, and obtaining tunnel information, wherein the VXLAN tunnel information table is used for storing the mapping relation between the VXLAN network identifier and the tunnel information;
and the third processing module is used for enabling the CPU to search the VXLAN entry according to the tunnel information to obtain the next hop of the VXLAN tunnel, and further sending the multicast entry containing the next hop of the VXLAN tunnel to the switching chip, wherein the VXLAN entry is used for storing the mapping relation between the tunnel information and the next hop of the VXLAN tunnel.
Preferably, the tunnel information includes a source IP address, a destination IP address, and a virtual tunnel port.
Preferably, the switch chip enables the multicast message after decapsulation to be reported to the CPU through an enable field.
The invention has the beneficial effects that:
the invention can directly acquire the next hop of the VXLAN tunnel after the VXLAN is unpacked, and send the next hop information of the VXLAN tunnel to the multicast item and the multicast forwarding table, so that the multicast message packaged by the VXLAN can also be normally forwarded, namely, after the two-layer multicast message packaged by the VXLAN is sent to a CPU, the next hop information of the VXLAN tunnel can be further acquired according to the source IP address, the destination IP address and the tunnel port obtained by analysis, and the next hop information of the VXLAN tunnel is sent to the multicast item and the multicast forwarding table, so that the multicast message packaged by the VXLAN can also be normally forwarded.
Drawings
Fig. 1 is a flowchart of a multicast implementation method based on multicast and VXLAN linkage in an embodiment of the present invention;
fig. 2 is a schematic diagram of a VXLAN network;
fig. 3 is a message processing diagram of a VXLAN tunnel endpoint;
fig. 4 is a block diagram of a multicast implementation apparatus based on the linkage of multicast and VXLAN in an embodiment of the present invention.
Detailed Description
The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
As shown in fig. 1, the multicast implementation method based on multicast and VXLAN linkage disclosed by the present invention includes the following steps:
s100, after receiving the encapsulated multicast message, the switching chip in the VXLAN tunnel endpoint decapsulates the multicast message and uploads the multicast message to a CPU;
specifically, as shown in fig. 2 and fig. 3, a VXLAN tunnel is established between the Switch device Switch3 and the Switch chip Switch 1. The Host1 sends an IGMP message to the Switch1 to request to join in multicast, and after receiving the IGMP message, the Switch1 performs VXLAN encapsulation processing on the IGMP message, for example, adding a VXLAN header to the IGMP message. After the encapsulation is completed, the encapsulated multicast message is transmitted to the Switch3 through a VXLAN Tunnel (VXLAN Tunnel).
In order to obtain the next hop of the VXLAN tunnel, the multicast packet is also forwarded to which VXLAN tunnel. The Switch chip in the Switch3 decapsulates the encapsulated multicast message and sends the decapsulated multicast message to the CPU. In implementation, the switching chip can report the decapsulated multicast message to the CPU through the dsvni.igmpsooping en field in the switching chip, and the reason for reporting the CPU is IGMP _ SNOOPING (internet group management protocol SNOOPING).
S200, the CPU analyzes the received multicast message to obtain VXLAN network identification, and searches a VLXAN tunnel information table according to the VXLAN network identification to obtain tunnel information, wherein the VXLAN tunnel information table is used for storing the mapping relation between the VXLAN network identification and the tunnel information.
Specifically, in order to obtain the next hop of the VXLAN tunnel, when the VXLAN is created, a VXLAN tunnel information table is created, where the VXLAN tunnel information table is used to store a mapping relationship between tunnel information and a VXLAN network identifier, that is, corresponding tunnel information can be obtained through the VXLAN network identifier, where the tunnel information includes, but is not limited to, a source IP address (sourceip), a destination IP address (destip), and a tunnel port (tunnel port). The tunnel information may be used for subsequent acquisition
In this embodiment, the VXLAN tunnel information table may be established by the following steps:
firstly, when a VXLAN tunnel is created, a virtual tunnel port (tunnel port) is created for the VXLAN tunnel; the tunnel port described herein is used to distinguish from a member port (member) of an entry (entry) in the layer two multicast.
Secondly, establishing a mapping relation between the VXLAN network identifier and the VLAN ID, and establishing an index relation between the VXLAN network identifier and a source IP address (sourceip), a destination IP address (destip) and a tunnel port (tunnel port), namely, the information of the source IP address (sourceip), the destination IP address (destip) and the tunnel port (tunnel port) can be obtained through the VXLAN network identifier, and of course, the VXLAN network identifier can also be obtained through the IP address (sourceip), the destination IP address (destip) and the tunnel port (tunnel port);
finally, the VXLAN network identifier, source IP address (source), destination IP address (destination), and tunnel port (tunnel port) are stored as keys in a table to form a VXLAN tunnel information table.
Further, after completing the creation of the VXLAN tunnel information table, when issuing the VXLAN entry, a mapping relationship between a next hop of the VXLAN tunnel and the VXLAN network identifier needs to be created, that is, the corresponding VXLAN tunnel information can be indexed through the VXLAN network identifier, or the corresponding VXLAN network identifier can be indexed through the VXLAN tunnel information. Further, an index relationship is established between the next hop of the VXLAN tunnel and the keywords (VXLAN network identifier, source IP address, destination IP address and tunnel port), that is, according to the VXLAN network identifier, source IP address, destination IP address and tunnel port, the corresponding VXLAN tunnel information table can be obtained, and further the next hop of the VXLAN tunnel in the VXLAN entry can be obtained. And indexing a corresponding VXLAN tunnel information table through a next hop of the VXLAN tunnel so as to obtain a corresponding tunnel port (tunnel port).
After the above, after the CPU receives the multicast message, the VXLAN network identifier can be obtained by parsing the message. The VXLAN network identifier stores the VXLAN header and thus obtains the VXLAN network identifier by parsing the VXLAN header.
Further, a VXLAN tunnel information table is searched through a VXLAN network identifier, so that tunnel information can be obtained, namely: after the VXLAN network identifier is obtained, VLAN information is further mapped based on the VXLAN network identifier, where the VLAN information refers to a VLAN ID. After obtaining the VLAN information, further determining which VXLAN tunnel the multicast packet comes from according to the VLAN information and the source port number. After the VXLAN tunnel is determined, the corresponding tunnel information can be inquired by utilizing the VXLAN network identification.
S300, the CPU searches VXLAN items according to the tunnel information, obtains the next hop of the VXLAN tunnel, and further issues the multicast items containing the next hop of the VXLAN tunnel to the switching chip, wherein the VXLAN items are used for storing the mapping relation between the tunnel information and the next hop entrance.
Specifically, since the mapping relationship between the next hop of the VXLAN tunnel and the tunnel information is established in step S200, the VXLAN entry can be searched according to the obtained tunnel information, and the next hop of the VXLAN tunnel is obtained, that is, the corresponding VXLAN tunnel information can be obtained according to the VXLAN network identifier, the source IP address (sourceip), the destination IP address (destip), and the tunnel port (tunnel port), and the next hop of the VXLAN tunnel in the VXLAN entry can be further obtained.
And after the next hop of the VXLAN tunnel is obtained, the multicast item issued to the switching chip further carries the next hop of the VXLAN tunnel. The switching chip can further forward the message according to the next hop of the VXLAN tunnel.
As shown in fig. 4, the present invention further discloses a multicast implementation apparatus based on multicast and VXLAN linkage, which includes a first processing module, a second processing module and a third processing module. The first processing module is used for enabling a switching chip in a VXLAN tunnel endpoint to receive the encapsulated multicast message, decapsulate the multicast message and upload the decapsulated multicast message to a CPU (central processing unit); the second processing module is used for enabling the CPU to analyze the multicast message, obtaining a VXLAN network identifier, searching a VXLAN tunnel information table according to the VXLAN network identifier, and obtaining tunnel information, wherein the VXLAN tunnel information table is used for storing the mapping relation between the VXLAN network identifier and the tunnel information; and the third processing module is used for enabling the CPU to search the VXLAN entry according to the tunnel information to obtain the next hop of the VXLAN tunnel, and further sending the multicast entry containing the next hop of the VXLAN tunnel to the switching chip, wherein the VXLAN entry is used for storing the mapping relation between the tunnel information and the next hop of the VXLAN tunnel.
Specifically, after receiving the encapsulated multicast message, the switch chip in the VXLAN tunnel endpoint performs decapsulation processing by the first processing module, and simultaneously sends the decapsulated multicast message to the CPU. In implementation, the switching chip can report the decapsulated multicast message to the CPU through the dsvni.igmpsooping en field in the switching chip, and the reason for reporting the CPU is IGMP _ SNOOPING (internet group management protocol SNOOPING).
After the multicast message is sent to the CPU, the second processing module enables the CPU to analyze the multicast message to obtain a VXLAN network identifier. The VXLAN network identifier stores the VXLAN header and thus obtains the VXLAN network identifier by parsing the VXLAN header. Further, a VXLAN tunnel information table is searched through a VXLAN network identifier, so that tunnel information can be obtained, namely: after the VXLAN network identifier is obtained, VLAN information is further mapped based on the VXLAN network identifier, where the VLAN information refers to a VLAN ID. After obtaining the VLAN information, further determining which VXLAN tunnel the multicast packet comes from according to the VLAN information and the source port number. After the VXLAN tunnel is determined, the corresponding tunnel information can be inquired by utilizing the VXLAN network identification.
After the tunnel information is acquired, the CPU searches for the VXLAN entry according to the acquired tunnel information through the third processing module, and acquires the next hop of the VXLAN tunnel, that is, according to the VXLAN network identifier, the source IP address, the destination IP address (destination), and the tunnel port (tunnel port), the corresponding VXLAN tunnel information table can be acquired, and further, the next hop of the VXLAN tunnel in the VXLAN entry can be acquired. And after the next hop of the VXLAN tunnel is obtained, the multicast item issued to the switching chip further carries the next hop of the VXLAN tunnel. The switching chip can further forward the message according to the next hop of the VXLAN tunnel.
The invention can directly acquire the next hop of the VXLAN tunnel after the VXLAN is unpacked, and send the next hop information of the VXLAN tunnel to the multicast item and the multicast forwarding table, so that the multicast message packaged by the VXLAN can also be normally forwarded, namely, after the two-layer multicast message packaged by the VXLAN is sent to a CPU, the next hop information of the VXLAN tunnel can be further acquired according to the source IP address, the destination IP address and the tunnel port obtained by analysis, and the next hop information of the VXLAN tunnel is sent to the multicast item and the multicast forwarding table, so that the multicast message packaged by the VXLAN can also be normally forwarded.
Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.
Claims (8)
1. A multicast implementation method based on multicast and VXLAN linkage is characterized by comprising the following steps:
the switching chip in the VXLAN tunnel endpoint receives the encapsulated multicast message, decapsulates the multicast message and uploads the decapsulated multicast message to the CPU;
the CPU analyzes the multicast message to obtain a VXLAN network identifier, and searches a VXLAN tunnel information table according to the VXLAN network identifier to obtain tunnel information, wherein the VXLAN tunnel information table is used for storing the mapping relation between the VXLAN network identifier and the tunnel information;
and the CPU searches VXLAN items according to the tunnel information to obtain the next hop of the VXLAN tunnel, and further issues a multicast item containing the next hop of the VXLAN tunnel to a switching chip, wherein the VXLAN items are used for storing the mapping relation between the tunnel information and the next hop of the VXLAN tunnel.
2. The method of claim 1, the tunnel information comprising a source IP address, a destination IP address, and a tunnel port.
3. The method of claim 2, the VXLAN tunnel information table being established by:
when a VXLAN tunnel is established, a virtual tunnel port is established for the VXLAN tunnel, and the mapping relation between a VXLAN network identifier and a VLAN ID is established;
establishing an index relation between the VXLAN network identification and the source IP address, the destination IP address and the tunnel port;
and storing the VXLAN network identifier, the source IP address, the destination IP address and the tunnel port as keywords in a table to form a VXLAN tunnel information table.
4. The method of claim 2, the mapping of tunnel information in the VXLAN entry to a next hop of a VXLAN tunnel is established by:
when transmitting the VXLAN item, establishing a mapping relation between the next hop of the VXLAN tunnel and the VXLAN network identifier;
and establishing an index relationship between the next hop of the VXLAN tunnel and VXLAN network identification, a source IP address, a destination IP address and a tunnel port.
5. The method of claim 1, wherein the switch chip enables the report of the decapsulated multicast packet to the CPU through an enable field.
6. A multicast implementation method device based on multicast and VXLAN linkage is characterized in that the device comprises:
the first processing module is used for enabling the switching chip in the VXLAN tunnel endpoint to receive the encapsulated multicast message, decapsulate the multicast message and upload the decapsulated multicast message to the CPU;
the second processing module is used for enabling the CPU to analyze the multicast message, obtaining a VXLAN network identifier, searching a VXLAN tunnel information table according to the VXLAN network identifier, and obtaining tunnel information, wherein the VXLAN tunnel information table is used for storing the mapping relation between the VXLAN network identifier and the tunnel information;
and the third processing module is used for enabling the CPU to search the VXLAN entry according to the tunnel information to obtain the next hop of the VXLAN tunnel, and further sending the multicast entry containing the next hop of the VXLAN tunnel to the switching chip, wherein the VXLAN entry is used for storing the mapping relation between the tunnel information and the next hop of the VXLAN tunnel.
7. The apparatus of claim 6, the tunnel information comprising a source IP address, a destination IP address, and a virtual tunnel port.
8. The apparatus of claim 6, wherein the switch chip enables reporting the decapsulated multicast packet to the CPU through an enable field.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115396367A (en) * | 2022-07-06 | 2022-11-25 | 北京百度网讯科技有限公司 | Traffic scheduling method and device, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954218A (en) * | 2014-03-24 | 2015-09-30 | 杭州华三通信技术有限公司 | Distributed virtual switching device and forwarding method |
| US20150381386A1 (en) * | 2014-06-30 | 2015-12-31 | Arista Networks, Inc. | Method and system for vxlan encapsulation offload |
| CN108494656A (en) * | 2018-03-29 | 2018-09-04 | 盛科网络（苏州）有限公司 | The method that virtual gateway is flexibly supported in exchange chip |
| CN110943901A (en) * | 2020-01-10 | 2020-03-31 | 锐捷网络股份有限公司 | Message forwarding method, device, equipment and storage medium |
| CN113452593A (en) * | 2021-06-10 | 2021-09-28 | 烽火通信科技股份有限公司 | Method and device for coexistence of OLT VXLAN and multi-slice |
-
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- 2021-12-30 CN CN202111656429.2A patent/CN114363102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954218A (en) * | 2014-03-24 | 2015-09-30 | 杭州华三通信技术有限公司 | Distributed virtual switching device and forwarding method |
| US20150381386A1 (en) * | 2014-06-30 | 2015-12-31 | Arista Networks, Inc. | Method and system for vxlan encapsulation offload |
| CN108494656A (en) * | 2018-03-29 | 2018-09-04 | 盛科网络（苏州）有限公司 | The method that virtual gateway is flexibly supported in exchange chip |
| CN110943901A (en) * | 2020-01-10 | 2020-03-31 | 锐捷网络股份有限公司 | Message forwarding method, device, equipment and storage medium |
| CN113452593A (en) * | 2021-06-10 | 2021-09-28 | 烽火通信科技股份有限公司 | Method and device for coexistence of OLT VXLAN and multi-slice |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115396367A (en) * | 2022-07-06 | 2022-11-25 | 北京百度网讯科技有限公司 | Traffic scheduling method and device, electronic equipment and storage medium |
| CN115396367B (en) * | 2022-07-06 | 2023-07-21 | 北京百度网讯科技有限公司 | Traffic scheduling method and device, electronic equipment and storage medium |
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Application publication date: 20220415 |