CN110768889B - VXLAN tunnel construction method and system - Google Patents

VXLAN tunnel construction method and system Download PDF

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Publication number
CN110768889B
CN110768889B CN201911000774.3A CN201911000774A CN110768889B CN 110768889 B CN110768889 B CN 110768889B CN 201911000774 A CN201911000774 A CN 201911000774A CN 110768889 B CN110768889 B CN 110768889B
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gateway
vxlan
information
vgmux
management platform
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CN110768889A (en
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陈敬志
廖旭
喻晶洁
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Fiberhome Telecommunication Technologies Co Ltd
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Fiberhome Telecommunication Technologies Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4641Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/08Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0876Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/60Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/63Routing a service request depending on the request content or context

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
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  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention discloses a construction method and a system of a VXLAN tunnel, relating to the technical field of communication, wherein the method comprises the following steps: establishing a network connection channel between the gateway equipment and the management platform according to preset configuration information; identifying whether the gateway equipment has VXLAN information on the VGMUX side or not; if the VXLAN information of the VGMUX side does not exist, the gateway equipment reports the gateway connection information to the management platform and receives the VXLAN information of the VGMUX side fed back by the management platform; and creating a VXLAN tunnel according to the VXLAN information on the VGMUX side, and feeding back the updated gateway VXLAN information to the management platform. The invention completes the construction work of the VXLAN tunnel by matching the gateway equipment with the management platform, has convenient operation and low modification cost, and effectively reduces the modification risk.

Description

VXLAN tunnel construction method and system
Technical Field
The invention relates to the technical field of communication, in particular to a VXLAN tunnel construction method and a VXLAN tunnel construction system.
Background
Under the novel Network architecture of NFV (Network Function Virtualization), the maintenance of the Network, the Network functions and the Network resources are all concentrated on the platform, the telecom operator can reduce the operation cost and develop more novel services based on the platform based on vCPE (Virtual Customer Premise Equipment), and the home gateway located in the user home Network only undertakes a simple access Function, and can also effectively reduce the Equipment cost, improve the stability and the service life of the Equipment. However, there are a lot of home gateway stock devices with huge investment in the current network of the operator, and it is a commonly used method at present to construct a VXLAN (Virtual Extensible LAN) tunnel to access the vCPE Virtual network function and platform service under the condition of keeping the current stock gateway service unchanged.
In the prior art, a common VXLAN tunnel construction method has three modes: firstly, the mode is issued from a network management platform through a TR069 protocol; secondly, when an address is obtained from a BRAS (broadband remote Access Server) platform, the address is carried by a DHCP (Dynamic Host Configuration Protocol) Protocol; thirdly, a two-layer channel passing through the BRAS is established first, and then a new DHCP server passes through a DHCP protocol mode;
however, in a common construction mode, the home gateway can acquire information required for constructing the VXLAN tunnel, but the current network platform of an operator needs to be modified, even a network node needs to be newly added, so that the modification cost and the risk are very large;
therefore, a technical solution to the above technical problem is urgently needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a VXLAN tunnel construction method and a VXLAN tunnel construction system, which can complete the construction of the VXLAN tunnel only by utilizing the cooperation of gateway equipment and a management platform without modifying the management platform and adding new network nodes, are convenient to operate and low in modification cost, and effectively reduce the modification risk.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the invention discloses a construction method of a VXLAN tunnel, which is based on gateway equipment, a management platform, a VGMUX and a vCPE system, and comprises a tunnel establishment flow, wherein the tunnel establishment flow comprises the following steps:
establishing a network connection channel between the gateway equipment and the management platform according to preset configuration information;
identifying whether the gateway equipment has VXLAN information on a VGMUX side or not;
if the VXLAN information of the VGMUX side does not exist, the gateway equipment reports gateway connection information to the management platform and receives the VXLAN information of the VGMUX side fed back by the management platform;
according to the VXLAN information of the VGMUX side, a VXLAN tunnel is established, and updated gateway VXLAN information is fed back to the management platform;
the method further comprises a preparation flow before the tunnel establishment flow, the preparation flow is used for establishing a VXLAN tunnel between the VGMUX and VG of the vCPE system, the preparation flow comprises the following steps:
the management platform issues VG side VXLAN information to the VGMUX, wherein the VG side VXLAN information comprises a VG LAN IP address and a VG VXLAN network identification;
the management platform issues VXLAN information on the VGMUX side to the VG, wherein the VXLAN information on the VGMUX side comprises the WAN side IP address of the VGMUX and the VXLAN network identification of the VGMUX;
and the VGMUX establishes the VXLAN connection between the VGMUX and the VG according to the VXLAN information on the VG side, and the VG establishes the VXLAN connection between the VG and the VGMUX according to the VXLAN information on the VG side.
On the basis of the above technical solution, the gateway device reports gateway connection information to the management platform and receives VXLAN information of the VGMUX side fed back by the management platform, and specifically includes the following steps:
the gateway equipment receives a gateway state subscription request sent by the management platform;
the gateway equipment responds to the gateway state subscription request and reports the gateway connection information to the management platform;
the management platform feeds back VXLAN information of the VGMUX side to the gateway equipment according to the gateway connection information; wherein,
the gateway connection information comprises a gateway equipment serial number and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information comprises a gateway device serial number, a VXLAN network identifier corresponding to the gateway device and a VXLAN connection state corresponding to the gateway device.
On the basis of the technical scheme, the method further comprises an equipment on-line flow before the tunnel establishment flow, wherein the equipment on-line flow comprises the following steps:
the management platform receives an equipment on-line message of the gateway equipment;
the management platform sends a gateway state subscription request to the gateway equipment;
after the gateway device responds to the gateway state subscription request, the management platform receives the gateway connection information sent by the gateway,
the management platform identifies the gateway equipment according to the gateway link information; wherein,
and the management platform only feeds back the VXLAN information on the VGMUX side to the gateway equipment passing the identity identification.
On the basis of the technical scheme, the subscription content corresponding to the gateway state subscription request comprises gateway connection information, gateway VXLAN information, state change of an outer layer network of the gateway device and state change of an inner layer network of the gateway device.
The invention also discloses a VXLAN tunnel construction system, which is based on the gateway equipment, the management platform, the VGMUX and the vCPE system, and comprises the following components:
a connection channel establishing module, arranged in the gateway device, for establishing a network connection channel between the gateway device and the management platform;
the first identification module is arranged in the gateway equipment and is used for identifying whether the gateway equipment has VXLAN information on a VGMUX side or not;
the gateway information transmission module is arranged in the gateway equipment and used for reporting gateway connection information to the management platform and receiving the VXLAN information of the VGMUX side fed back by the management platform when the VXLAN information of the VGMUX side does not exist in the gateway equipment;
a VXLAN tunnel creation module, disposed in the gateway device, for creating a VXLAN tunnel between the gateway device and the vCPE system according to VXLAN information on a VGMUX side;
the system also comprises a pre-construction unit arranged in the management platform, wherein the pre-construction unit is used for establishing a VXLAN tunnel between the VGMUX and the VG of the vCPE system based on VXLAN information at the VG side and VXLAN information at the VG MUX side before the VXLAN tunnel creation module works; wherein,
the VG side VXLAN information comprises the LAN side IP address of the VG and the VXLAN network identification of the VG;
the VGMUX side VXLAN information includes a WAN side IP address of the VGMUX and a VXLAN network identification of the VGMUX.
On the basis of the above technical solution, the gateway information transmission module is further configured to receive a gateway state subscription request sent by the management platform to the gateway device;
the gateway information transmission module is also used for responding to the gateway state subscription request and reporting the gateway connection information to the management platform;
the gateway information transmission module is further configured to receive VXLAN information of the VGMUX side, which is fed back to the gateway device by the management platform according to the gateway connection information; wherein,
the gateway connection information comprises a gateway equipment serial number and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information comprises a gateway device serial number, a VXLAN network identifier corresponding to the gateway device and a VXLAN connection state corresponding to the gateway device.
On the basis of the technical scheme, the system also comprises an equipment on-line detection unit arranged in the management platform;
the device on-line detection unit is used for receiving a device on-line message of the gateway device;
the device on-line detection unit is used for sending a gateway state subscription request to the gateway device;
the device on-line detection unit is used for receiving the gateway connection information sent by the gateway after the gateway device responds to the gateway state subscription request;
the device on-line detection unit is used for carrying out identity recognition on the gateway device according to the gateway link information; wherein,
and the management platform only feeds back the VXLAN information on the VGMUX side to the gateway equipment passing the identity identification.
On the basis of the technical scheme, the subscription content corresponding to the gateway state subscription request comprises gateway connection information, gateway VXLAN information, state change of an outer layer network of the gateway device and state change of an inner layer network of the gateway device.
Compared with the prior art, the invention has the advantages that:
(1) according to the VXLAN tunnel construction method, the management platform is not required to be modified, new network nodes are not required to be added, the VXLAN tunnel construction can be completed only by matching the gateway equipment with the management platform, the operation is convenient, the modification cost is low, and the modification risk is effectively reduced.
(2) In the invention, the management platform can manage not only the virtual gateway in the vCPE system through the NETCONF protocol, but also the common home gateway, thereby providing convenience for daily management work.
(3) The invention not only can ensure that a large amount of current network equipment of an operator can be valued-added, but also can quickly develop a novel value-added service based on VNF under the condition of keeping the functions and the system architecture of the existing home gateway unchanged and accessing the vCPE system in a VXLAN tunnel mode, and provides a new way for the operator to develop services by utilizing the existing home network equipment under the novel NFV network architecture.
Drawings
Fig. 1 is a block diagram of a structure among a gateway device, a management platform, a VGMUX, and a vCPE system based on a VXLAN tunnel construction method in an embodiment of the present invention;
fig. 2 is a flowchart illustrating a tunnel establishment procedure of a VXLAN tunnel construction method according to an embodiment of the present invention;
fig. 3 is a flowchart of step S3 of the tunnel establishment procedure in the method for constructing a VXLAN tunnel according to the first embodiment of the present invention;
fig. 4 is a flowchart of a step of an online process of a device in a method for constructing a VXLAN tunnel according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating steps of a preparation flow in a method for constructing a VXLAN tunnel according to an embodiment of the present invention;
fig. 6 is a block diagram of a VXLAN tunnel construction system according to a second embodiment of the present invention;
in the figure: 1. a connection channel establishing module; 2. a first identification module; 3. a gateway information transmission module; 4. a VXLAN tunnel creation module; 5. an equipment online detection unit; 6. and (5) pre-constructing a module.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The embodiment of the invention provides a VXLAN tunnel construction method and a VXLAN tunnel construction system, which can complete the construction of the VXLAN tunnel only by matching gateway equipment and a management platform without modifying the management platform and adding new network nodes, are convenient to operate and low in modification cost, and effectively reduce the modification risk.
In order to achieve the technical effects, the general idea of the application is as follows:
a VXLAN tunnel construction method is based on a gateway device, a management platform, a VGMUX and a vCPE system, and comprises a tunnel establishment flow, wherein the tunnel establishment flow comprises the following steps:
s1, establishing a network connection channel between the gateway equipment and the management platform according to the preset configuration information;
s2, identifying whether the gateway equipment has VXLAN information at the VGMUX side;
s3, if VXLAN information of the VGMUX side does not exist, the gateway equipment reports gateway connection information to the management platform and receives VXLAN information of the VGMUX side fed back by the management platform;
s4, according to VXLAN information at VGMUX side, a VXLAN tunnel is created, and updated gateway VXLAN information is fed back to the management platform.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 5, embodiment 1 of the present invention provides a method for constructing a VXLAN tunnel, where the method is based on a gateway device, a management platform, a VGMUX (Virtual gateway multiplexer, access aggregation node), and a vCPE system, and the method includes a tunnel establishment procedure, as shown in fig. 2, where the tunnel establishment procedure includes the following steps:
s1, establishing a network connection channel between the gateway equipment and the management platform according to the preset configuration information;
s2, identifying whether the gateway equipment has VXLAN information at the VGMUX side;
s3, if VXLAN information of the VGMUX side does not exist, the gateway equipment reports gateway connection information to the management platform and receives VXLAN information of the VGMUX side fed back by the management platform;
s4, creating a VXLAN tunnel according to the VXLAN information at the VGMUX side, and feeding back the updated gateway VXLAN information to the management platform;
if it is determined in step S2 that the gateway device has the remote VXLAN information, the process proceeds directly to step S4;
in the embodiment of the invention, the gateway equipment is started to obtain the preset configuration information, further to complete the initialization of the gateway equipment, and a network connection channel is established with the management platform according to the preset configuration information,
as shown in fig. 1 of the drawings of the specification, the method is based on a gateway device, a management platform, a VGMUX and a vCPE system,
wherein, UE (User Equipment),
a DHCP Server, i.e., a Dynamic Host Configuration Protocol Server, a Dynamic Host setup Protocol Server, i.e., a DHCP Server,
DNS Server, i.e. Domain Name System Server, i.e. DNS Server
A Gateway device, i.e., PG (physical Gateway, physical Gateway or physical Gateway),
the management platform may be SDN-C (SDN Controller), SDN, i.e. Software Defined Network,
the preset configuration information on the gateway device includes the device serial number, address acquisition mode, interface VLAN (Virtual Local Area Network), management platform address and NETCONF server configuration information required for uplink registration, and the Network connection channel includes data channel, management channel and IPTV (Internet protocol television) channel,
the NETCONF server configuration information mainly comprises gateway connection information and YANG model definition and initial data of gateway VXLAN information, wherein the gateway connection information comprises an equipment serial number and a WAN connection IP address, and underlay network information belonging to a network, namely outer layer network information of a VXLAN tunnel; the gateway VXLAN information comprises a device serial number, a VXLAN network identifier and a VXLAN connection state, and belongs to overlay network information of the gateway, namely network information of an inner layer VXLAN tunnel; the device serial number and the gateway NETCONF are stored in a gateway NETCONF server side, the device serial number is the unique identification of the gateway, the WAN connection IP address is the external communication address of a data channel, when the channel is not established, the data is empty,
wherein, the VXLAN Network identifier is vni (VXLAN Network identifier);
YANG is a data modeling language designed for modeling NETCONF content layers to model configuration data and status data for NETCONF Remote Procedure Call (RPC) and NETCONF NOTIFICATION (NOTIFICATION) operations,
the data channel of the gateway device is the common internet access channel used by the user, the management channel is the special channel of the network management system management gateway of the operator, the IPTV channel is the special channel of the set-top box network under the gateway, the three service channels are mutually independent and are separated by different VLANs to connect different service platforms of the operator network,
in specific operation, uplink interfaces of different VLANs correspond to different network connection channels;
further, whether the Gateway device has VXLAN information on the VGMUX side is identified, the VXLAN information on the VGMUX side is an IP (Internet Protocol Address) Address and a VXLAN network identifier of a remote VTEP (end point of the VXLAN tunnel) of the VXLAN tunnel of the Gateway, where the remote VTEP refers to an access aggregation node VGMUX (Virtual Gateway Multiplexer) of the Gateway device, and the establishment of the VXLAN tunnel between the Gateway device and the VGMUX requires the IP Address and the VXLAN network identifier of the VGMUX; the VXLAN information of the VGMUX side is stored in a gateway file system in the form of a text file, if the file exists, the VXLAN information of the VGMUX side is acquired, otherwise, the VXLAN information of the VGMUX side is not acquired;
when the VXLAN information of the VGMUX side does not exist in the gateway device, the VXLAN tunnel construction work cannot be performed at this time, the step S3 is executed, the gateway device reports the gateway connection information to the management platform and receives the VXLAN information of the VGMUX side fed back by the management platform;
finally, a VXLAN tunnel is established according to VXLAN information on the VGMUX side, and updated gateway VXLAN information is fed back to the management platform;
wherein, the step S4 of creating the VXLAN tunnel specifically means that the gateway device end establishes the VXLAN tunnel connection between the gateway device and the VGMUX, and the VGMUX end establishes the VXLAN tunnel connection between the VGMUX and the gateway device
When the VXLAN tunnel is created, the IP address of the VGMUX and the VXLAN network identification are also needed,
and after the VXLAN tunnel is successfully established, updating the information of the remote VXLAN, wherein the information comprises the equipment serial number, the VXLAN network identifier and the VXLAN connection state, and the gateway equipment sends a NETCONF notification message to the management platform and reports the change of the information of the remote VXLAN.
According to the embodiment of the invention, the construction work of the VXLAN tunnel can be completed only by matching the gateway equipment and the management platform without modifying the management platform or newly adding new network nodes, the operation is convenient, the modification cost is low, and the modification risk is effectively reduced.
In another embodiment of the present invention, step S3 in the method, that is, the gateway device reports the gateway connection information to the management platform and receives VXLAN information of the VGMUX side fed back by the management platform, includes the following steps:
s300, the gateway equipment receives a gateway state subscription request sent by a management platform;
s301, the gateway device responds to the gateway state subscription request and reports gateway connection information to the management platform;
s302, the management platform feeds back VXLAN information of a VGMUX side to the gateway equipment according to the gateway connection information; wherein,
the gateway connection information comprises a gateway equipment serial number and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information comprises a gateway equipment serial number, a VXLAN network identifier corresponding to the gateway equipment and a VXLAN connection state corresponding to the gateway equipment;
in the embodiment of the invention, after a network connection channel is established between the gateway equipment and the management platform, the management platform sends a gateway state subscription request to the gateway equipment, the gateway equipment receives the gateway state subscription request sent by the management platform, the gateway equipment responds to the gateway state subscription request and reports gateway connection information to the management platform, and then the management platform feeds back VXLAN information at the VGMUX side to the gateway equipment according to the gateway connection information;
it should be noted that the gateway connection information includes a serial number of the gateway device and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information includes a gateway device serial number, a VXLAN network identifier corresponding to the gateway device, and a VXLAN connection status corresponding to the gateway device.
The gateway state subscription request can be a special NETCONFRFC request, only the type of the request is NETCONF notification, and the event subscribed according to the NETCONF subscription request comprises data changes of gateway connection information and gateway VXLAN information, namely the change of the network state;
in contrast, the specific way for reporting the gateway connection information by the gateway device is to send a NETCONF notification message to the management platform through the NETCONF server, so as to report the change of the gateway connection information.
In another implementation manner of the embodiment of the present invention, before the tunnel establishment procedure, the method further includes an equipment online procedure, where the equipment online procedure includes the following steps
A1, the management platform receives the device on-line message of the gateway device;
a2, the management platform sends a gateway state subscription request to the gateway device;
a3, after the gateway device responds the gateway state subscription request, the management platform receives the gateway connection information sent by the gateway,
a4, the management platform identifies the identity of the gateway device according to the gateway link information; wherein,
the management platform only feeds back VXLAN information at the VGMUX side to the gateway equipment passing the identity identification;
the process mainly relates to an operation process when the gateway equipment is on line, and is carried out before a tunnel establishment process;
wherein, in step A4, the management platform identifies the identity of the gateway device according to the gateway link information, and specifically, can perform authentication, that is, during actual operation, the management platform firstly performs authentication by using the device serial number in the gateway connection information, that is, identifies whether the gateway device is a legal device, and when the gateway device is a legal device, authorizes the gateway device, allows the gateway device to access the VGMUX, that is, authorizes the gateway device to access the vCPE system,
after the authentication is passed, namely the identity identification is passed, the management platform sends a gateway state subscription request to the gateway equipment, and subscription contents corresponding to the gateway state subscription request comprise gateway connection information, gateway VXLAN information, gateway equipment outer layer network state change and gateway equipment inner layer network state change;
in addition, the management platform also judges whether a subscription response message fed back by the gateway equipment according to the gateway state subscription request is received, so as to verify whether the gateway equipment is online, and if the gateway equipment is not online, the management platform waits for the preset waiting time and then judges whether the subscription response message is received again.
It should be noted that the subscription content corresponding to the gateway state subscription request includes gateway connection information, gateway VXLAN information, a change in the state of the outer layer network of the gateway device, and a change in the state of the inner layer network of the gateway device.
In the embodiment of the invention, the management platform can manage not only the virtual gateway in the vCPE system through the NETCONF protocol, but also the common home gateway, so as to provide convenience for daily management work.
In another embodiment of the embodiments of the present invention, the method further includes a preparation process before the tunnel establishment process, where the preparation process is used to establish a VXLAN tunnel between the VGMUX and the VG of the vCPE system, and the preparation process includes the following steps:
b1, the management platform issues VG side VXLAN information to the VGMUX, wherein the VG side VXLAN information comprises the LAN side IP address of the VG and the VXLAN network identification of the VG;
b2, the management platform issues VXLAN information of the VGMUX side to VG, and the VXLAN information of the VGMUX side comprises a WAN side IP address of the VGMUX and a VXLAN network identification of the VGMUX;
b3, VGMUX establishes the VXLAN connection of VGMUX and VG according to VG side VXLAN information, VG establishes the VXLAN connection of VG and VGMUX according to VGMUX side VXLAN information.
In another implementation manner of the embodiment of the present invention, when the method is based on one VGMUX and multiple gateway devices, the method includes the following steps:
each gateway device establishes VXLAN connection with the VGMUX respectively;
the VGMUX establishes a VXLAN connection with the VG of the vCPE system.
In another implementation manner of the embodiment of the present invention, the network connection channel includes a data channel, a management channel, and an IPTV channel.
In another embodiment of the present invention, the remote VXLAN information includes an IP address of the VGMUX and a VXLAN network identifier of the VGMUX.
In another embodiment of the present invention, the preset configuration information includes a device serial number, an address obtaining manner, an interface VLAN, a management platform address, and NETCONF server configuration information.
In another embodiment of the present invention, the updated remote VXLAN information includes a device serial number, a VXLAN network identifier, and a VXLAN connection status.
It should be noted that, the VXLAN network identifier between the VGMUX and the VG and the VXLAN network identifier between the gateway device and the VGMUX may be the same or different; whether the two are the same or not, in order for the gateway device to find the correct VG, the end points of the two VXLAN need to be connected in the VGMUX;
at this time, the home gateway is used as PG, and VXLAN tunnel connection is established with VG through VGMUX.
Further, in another embodiment of the present invention, after a VXLAN tunnel between a Gateway device (PG, physical Gateway or entity Gateway) and a VG (virtual Gateway) is established, a user equipment UE may access an external network through a default channel or access the VG through the VXLAN tunnel, perform identification and marking on the Gateway device (PG) through a message processing tool, enter a routing table with different rules, and then bypass to different network channels for forwarding;
for example, all the service messages of the TCP destination port 80 are shunted to VG, the messages of which the TCP destination port is 80 can be identified through iptables, an IP rule is marked and set, then a routing table is created, the messages meeting the rule are forwarded to the VXLAN tunnel through the new routing table, and thus the messages of which the designated TCP destination port is 80 are shunted to the vCPE system.
It should be noted that, in the embodiment of the present invention, under the condition that the existing home gateway function and system architecture are kept unchanged and the vCPE system is accessed in the VXLAN tunnel manner, not only a large amount of existing network devices of an operator can be value-added, but also a new value-added service based on VNF can be rapidly developed, and under the new NFV network architecture, a new way is provided for the operator to develop services by using the existing home network devices.
Based on the same inventive concept, the present application provides an embodiment of a VXLAN tunnel construction system corresponding to the embodiment, which is detailed in embodiment two
Example two
Referring to fig. 6, an embodiment of the present invention provides a system for constructing a VXLAN tunnel, where the system is based on a gateway device, a management platform, a VGMUX, and a vCPE system, and the system includes:
a connection channel establishing module 1, which is arranged in the gateway device and is used for establishing a network connection channel between the gateway device and the management platform;
the first identification module 2 is arranged in the gateway equipment and is used for identifying whether the gateway equipment has VXLAN information on the VGMUX side or not;
the gateway information transmission module 3 is arranged in the gateway equipment and is used for reporting gateway connection information to the management platform and receiving VXLAN information of the VGMUX side fed back by the management platform when the VXLAN information of the VGMUX side does not exist in the gateway equipment;
and the VXLAN tunnel creation module 4 is arranged in the gateway equipment and is used for creating a VXLAN tunnel between the gateway equipment and the vCPE system according to the VXLAN information on the VGMUX side.
In the embodiment of the invention, the gateway equipment is started to obtain the preset configuration information, further to complete the initialization of the gateway equipment, and a network connection channel is established with the management platform according to the preset configuration information,
further, whether the Gateway device has VXLAN information on the VGMUX side is identified, the VXLAN information on the VGMUX side is an IP (Internet Protocol Address) Address and a VXLAN network identifier of a remote VTEP (end point of the VXLAN tunnel) of the VXLAN tunnel of the Gateway, where the remote VTEP refers to an access aggregation node VGMUX (Virtual Gateway Multiplexer) of the Gateway device, and the establishment of the VXLAN tunnel between the Gateway device and the VGMUX requires the IP Address and the VXLAN network identifier of the VGMUX; the VXLAN information of the VGMUX side is stored in a gateway file system in the form of a text file, if the file exists, the VXLAN information of the VGMUX side is acquired, otherwise, the VXLAN information of the VGMUX side is not acquired;
when the VXLAN information of the VGMUX side does not exist in the gateway equipment, the VXLAN tunnel construction work cannot be carried out at the moment, and then the gateway equipment reports the gateway connection information to the management platform and receives the VXLAN information of the VGMUX side fed back by the management platform;
finally, a VXLAN tunnel is established according to VXLAN information on the VGMUX side, and updated gateway VXLAN information is fed back to the management platform;
when the gateway device has VGMUX-side VXLAN information, a VXLAN tunnel is created directly from the VGMUX-side VXLAN information, and updated gateway VXLAN information is fed back to the management platform.
The step of establishing the VXLAN tunnel specifically means that a gateway device end establishes VXLAN tunnel connection between the gateway device and the VGMUX, and a VGMUX end establishes VXLAN tunnel connection between the VGMUX and the gateway device
When the VXLAN tunnel is created, the IP address of the VGMUX and the VXLAN network identification are also needed,
and after the VXLAN tunnel is successfully established, updating the information of the remote VXLAN, wherein the information comprises the equipment serial number, the VXLAN network identifier and the VXLAN connection state, and the gateway equipment sends a NETCONF notification message to the management platform and reports the change of the information of the remote VXLAN.
According to the embodiment of the invention, the construction work of the VXLAN tunnel can be completed only by matching the gateway equipment and the management platform without modifying the management platform or newly adding new network nodes, the operation is convenient, the modification cost is low, and the modification risk is effectively reduced.
In another implementation manner in the embodiment of the present invention, the gateway information transmission module 3 is further configured to receive a gateway state subscription request sent by the management platform to the gateway device;
the gateway information transmission module 3 is also used for responding to the gateway state subscription request and reporting gateway connection information to the management platform;
the gateway information transmission module 3 is also used for receiving VXLAN information of the VGMUX side fed back to the gateway equipment by the management platform according to the gateway connection information; wherein,
the gateway connection information comprises a gateway equipment serial number and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information includes a gateway device serial number, a VXLAN network identifier corresponding to the gateway device, and a VXLAN connection status corresponding to the gateway device.
In the embodiment of the invention, after a network connection channel is established between the gateway equipment and the management platform, the management platform sends a gateway state subscription request to the gateway equipment, the gateway equipment receives the gateway state subscription request sent by the management platform, the gateway equipment responds to the gateway state subscription request and reports gateway connection information to the management platform, and then the management platform feeds back VXLAN information at the VGMUX side to the gateway equipment according to the gateway connection information;
it should be noted that the gateway connection information includes a serial number of the gateway device and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information includes a gateway device serial number, a VXLAN network identifier corresponding to the gateway device, and a VXLAN connection status corresponding to the gateway device.
The gateway state subscription request can be a special NETCONFRFC request, only the type of the request is NETCONF notification, and the event subscribed according to the NETCONF subscription request comprises data changes of gateway connection information and gateway VXLAN information, namely the change of the network state;
in contrast, the specific way for reporting the gateway connection information by the gateway device is to send a NETCONF notification message to the management platform through the NETCONF server, so as to report the change of the gateway connection information.
In another embodiment of the present invention, the system further includes an online device detection unit 5 disposed in the management platform;
the device on-line detection unit 5 is configured to receive a device on-line message of the gateway device;
the device on-line detection unit 5 is configured to send a gateway state subscription request to the gateway device;
the device on-line detection unit 5 is used for receiving gateway connection information sent by the gateway after the gateway device responds to the gateway state subscription request,
the device on-line detection unit 5 is used for performing identity recognition on the gateway device according to the gateway link information; wherein,
and the management platform only feeds back the VXLAN information on the VGMUX side to the gateway equipment passing the identity identification.
The device online detection unit 5 mainly relates to an operation flow when the gateway device is online, and is performed before the tunnel is established;
wherein, the management platform identifies the identity of the gateway device according to the gateway link information, and specifically can perform authentication, that is, during actual operation, the management platform firstly performs authentication by using the device serial number in the gateway connection information, that is, identifies whether the gateway device is legal or not, authorizes the gateway device when the gateway device is legal, allows the gateway device to access the VGMUX, that is, authorizes the gateway device to access the vCPE system,
after the authentication is passed, namely the identity identification is passed, the management platform sends a gateway state subscription request to the gateway equipment, and subscription contents corresponding to the gateway state subscription request comprise gateway connection information, gateway VXLAN information, gateway equipment outer layer network state change and gateway equipment inner layer network state change;
in addition, the management platform also judges whether a subscription response message fed back by the gateway equipment according to the gateway state subscription request is received, so as to verify whether the gateway equipment is online, and if the gateway equipment is not online, the management platform waits for the preset waiting time and then judges whether the subscription response message is received again.
It should be noted that the subscription content corresponding to the gateway state subscription request includes gateway connection information, gateway VXLAN information, a change in the state of the outer layer network of the gateway device, and a change in the state of the inner layer network of the gateway device.
It should be noted that the subscription content corresponding to the gateway state subscription request includes gateway connection information, gateway VXLAN information, a change in the state of the outer layer network of the gateway device, and a change in the state of the inner layer network of the gateway device.
In another embodiment of the present invention, the system includes a pre-construction unit 6 disposed in the management platform, and the pre-construction unit 6 is configured to establish the VXLAN tunnel between the VGMUX and the VG of the vCPE system before the VXLAN tunnel creation module operates.
In another implementation manner of the embodiment of the present invention, the network connection channel includes a data channel, a management channel, and an IPTV channel.
In another embodiment of the present invention, the remote VXLAN information includes an IP address of the VGMUX and a VXLAN network identifier of the VGMUX.
In another embodiment of the present invention, the preset configuration information includes a device serial number, an address obtaining manner, an interface VLAN, a management platform address, and NETCONF server configuration information.
In another embodiment of the present invention, the updated remote VXLAN information includes a device serial number, a VXLAN network identifier, and a VXLAN connection status.
It should be noted that, the VXLAN network identifier between the VGMUX and the VG and the VXLAN network identifier between the gateway device and the VGMUX may be the same or different; whether the two are the same or not, in order for the gateway device to find the correct VG, the end points of the two VXLAN need to be connected in the VGMUX;
at this time, the home gateway is used as PG, and VXLAN tunnel connection is established with VG through VGMUX.
Further, in another embodiment of the present invention, after a VXLAN tunnel between a gateway device (PG) and a VG is established, a certain policy setting may be performed, and a user equipment UE may access an external network through a default channel, may also access the VG through the VXLAN tunnel, performs identification and marking on the gateway device (PG) through a message processing tool, enters a routing table with different rules, and then shunts to different network channels for forwarding;
for example, all the service messages of the TCP destination port 80 are shunted to VG, the messages of which the TCP destination port is 80 can be identified through iptables, an IP rule is marked and set, then a routing table is created, the messages meeting the rule are forwarded to the VXLAN tunnel through the new routing table, and thus the messages of which the designated TCP destination port is 80 are shunted to the vCPE system.
Based on the same inventive concept, the present application provides an embodiment of a storage medium corresponding to the embodiment described in the third embodiment
EXAMPLE III
A third embodiment of the invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out all or part of the method steps of the first embodiment.
The present invention can implement all or part of the flow in the first embodiment, and can also be implemented by using a computer program to instruct related hardware, where the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned method embodiments can be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Based on the same inventive concept, the application provides an embodiment of a corresponding device, and the detailed description is given in the fourth embodiment
Example four
The fourth embodiment of the present invention further provides an apparatus, which includes a memory and a processor, wherein the memory stores a computer program running on the processor, and the processor executes the computer program to implement all or part of the method steps in the first embodiment.
The processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the computer device and the various interfaces and lines connecting the various parts of the overall computer device.
The memory may be used to store computer programs and/or modules, and the processor may implement various functions of the computer device by executing or executing the computer programs and/or modules stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, video data, etc.) created according to the use of the cellular phone, etc. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), servers and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A VXLAN tunnel construction method is characterized in that the method is based on a gateway device, a management platform, a VGMUX and a vCPE system, the method comprises a tunnel establishment flow, and the tunnel establishment flow comprises the following steps:
establishing a network connection channel between the gateway equipment and the management platform according to preset configuration information;
identifying whether the gateway equipment has VXLAN information on a VGMUX side or not;
if the VXLAN information of the VGMUX side does not exist, the gateway equipment reports gateway connection information to the management platform and receives the VXLAN information of the VGMUX side fed back by the management platform;
according to the VXLAN information of the VGMUX side, a VXLAN tunnel is established, and updated gateway VXLAN information is fed back to the management platform;
the method further comprises a preparation flow before the tunnel establishment flow, the preparation flow is used for establishing a VXLAN tunnel between the VGMUX and VG of the vCPE system, the preparation flow comprises the following steps:
the management platform issues VG side VXLAN information to the VGMUX, wherein the VG side VXLAN information comprises a VG LAN IP address and a VG VXLAN network identification;
the management platform issues VXLAN information on the VGMUX side to the VG, wherein the VXLAN information on the VGMUX side comprises the WAN side IP address of the VGMUX and the VXLAN network identification of the VGMUX;
and the VGMUX establishes the VXLAN connection between the VGMUX and the VG according to the VXLAN information on the VG side, and the VG establishes the VXLAN connection between the VG and the VGMUX according to the VXLAN information on the VG side.
2. The method for constructing a VXLAN tunnel according to claim 1, wherein the gateway device reports gateway connection information to the management platform and receives VXLAN information on the VGMUX side fed back by the management platform, specifically comprising the steps of:
the gateway equipment receives a gateway state subscription request sent by the management platform;
the gateway equipment responds to the gateway state subscription request and reports the gateway connection information to the management platform;
the management platform feeds back VXLAN information of the VGMUX side to the gateway equipment according to the gateway connection information; wherein,
the gateway connection information comprises a gateway equipment serial number and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information comprises a gateway device serial number, a VXLAN network identifier corresponding to the gateway device and a VXLAN connection state corresponding to the gateway device.
3. The method for constructing a VXLAN tunnel according to claim 1, wherein said method further comprises an on-line device procedure before said tunnel establishment procedure, said on-line device procedure comprising the steps of:
the management platform receives an equipment on-line message of the gateway equipment;
the management platform sends a gateway state subscription request to the gateway equipment;
after the gateway device responds to the gateway state subscription request, the management platform receives the gateway connection information sent by the gateway,
the management platform identifies the gateway equipment according to the gateway link information; wherein,
and the management platform only feeds back the VXLAN information on the VGMUX side to the gateway equipment passing the identity identification.
4. The method of constructing a VXLAN tunnel according to claim 2 or 3, wherein:
the subscription content corresponding to the gateway state subscription request comprises gateway connection information, gateway VXLAN information, state change of an outer layer network of the gateway equipment and state change of an inner layer network of the gateway equipment.
5. A VXLAN tunnel construction system, which is based on a gateway device, a management platform, a VGMUX and a vCPE system, the system comprises:
a connection channel establishing module, arranged in the gateway device, for establishing a network connection channel between the gateway device and the management platform;
the first identification module is arranged in the gateway equipment and is used for identifying whether the gateway equipment has VXLAN information on a VGMUX side or not;
the gateway information transmission module is arranged in the gateway equipment and used for reporting gateway connection information to the management platform and receiving the VXLAN information of the VGMUX side fed back by the management platform when the VXLAN information of the VGMUX side does not exist in the gateway equipment;
a VXLAN tunnel creation module, disposed in the gateway device, for creating a VXLAN tunnel between the gateway device and the vCPE system according to VXLAN information on a VGMUX side;
the system also comprises a pre-construction unit arranged in the management platform, wherein the pre-construction unit is used for establishing a VXLAN tunnel between the VGMUX and the VG of the vCPE system based on VXLAN information at the VG side and VXLAN information at the VG MUX side before the VXLAN tunnel creation module works; wherein,
the VG side VXLAN information comprises the LAN side IP address of the VG and the VXLAN network identification of the VG;
the VGMUX side VXLAN information includes a WAN side IP address of the VGMUX and a VXLAN network identification of the VGMUX.
6. The system of constructing a VXLAN tunnel of claim 5, wherein:
the gateway information transmission module is also used for receiving a gateway state subscription request sent by the management platform to the gateway equipment;
the gateway information transmission module is also used for responding to the gateway state subscription request and reporting the gateway connection information to the management platform;
the gateway information transmission module is further configured to receive VXLAN information of the VGMUX side, which is fed back to the gateway device by the management platform according to the gateway connection information; wherein,
the gateway connection information comprises a gateway equipment serial number and a WAN connection IP address;
the VXLAN information on the VGMUX side comprises an IP address of the VGMUX and a VXLAN network identifier corresponding to the VGMUX;
the gateway VXLAN information comprises a gateway device serial number, a VXLAN network identifier corresponding to the gateway device and a VXLAN connection state corresponding to the gateway device.
7. The system for constructing a VXLAN tunnel of claim 5, wherein: the system also comprises an equipment on-line detection unit arranged in the management platform;
the device on-line detection unit is used for receiving a device on-line message of the gateway device;
the device on-line detection unit is used for sending a gateway state subscription request to the gateway device;
the device on-line detection unit is used for receiving the gateway connection information sent by the gateway after the gateway device responds to the gateway state subscription request;
the device on-line detection unit is used for carrying out identity recognition on the gateway device according to the gateway link information; wherein,
and the management platform only feeds back the VXLAN information on the VGMUX side to the gateway equipment passing the identity identification.
8. The system for constructing a VXLAN tunnel according to claim 6 or 7, wherein:
the subscription content corresponding to the gateway state subscription request comprises gateway connection information, gateway VXLAN information, state change of an outer layer network of the gateway equipment and state change of an inner layer network of the gateway equipment.
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