CN107294849B - Method, device and system for establishing service path - Google Patents
Method, device and system for establishing service path Download PDFInfo
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- CN107294849B CN107294849B CN201610231991.3A CN201610231991A CN107294849B CN 107294849 B CN107294849 B CN 107294849B CN 201610231991 A CN201610231991 A CN 201610231991A CN 107294849 B CN107294849 B CN 107294849B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/12—Shortest path evaluation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/54—Organization of routing tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
Abstract
The invention provides a method, a device and a system for establishing a service path, wherein the method comprises the following steps: receiving a service sending request of a source service edge network element, wherein the service sending request carries a first address identifier of a source user edge network element governed by the source service edge network element and a second address identifier of a target network element; the invention solves the problem that the service path can not be established according to the service drive in the related technology, thereby achieving the effects of reducing the network resource consumption, reducing the strong coupling between the carrier network and the wireless network and further simplifying the network architecture.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a system for establishing a service path.
Background
The base station backhaul traffic includes east-west traffic between the base station and the base station, in addition to north-south traffic between the base station and the core network. Typical south-bound traffic in related art wireless networks is S1 traffic and east-west traffic is X2 traffic.
The wireless backhaul bearer schemes in the related art include two-layer transparent Virtual Private Network (VPN for short), L2VPN + three-layer transparent Virtual Private Network L3VPN, and hierarchical L3 VPN. For the L2VPN + L3VPN scheme, fig. 1 is a schematic diagram of an L2VPN + L3VPN service bearer scheme in the related art according to the present invention, see fig. 1, where an eNodeB is a base station network element, and an X2 service between base stations needs to be forwarded through a bridge point, which is performed to avoid establishing a full-connection L2VPN tunnel between base stations, thereby simplifying a network. But the disadvantage is that the nearby forwarding of the base station east-west traffic cannot be achieved. For the hierarchical L3VPN scheme, fig. 2 is a hierarchical L3VPN service bearer scheme in the related art according to the present invention, and as shown in fig. 2, the problem exists that similar to L2VPN + L3VPN, the eastern and western traffic between base stations needs to be forwarded through a default gateway, because the access PE generally only has a route to an all-IP Packet Core (EPC for short) and does not have a route of other access PEs, which can reduce the requirement for the access device routing table capability and reduce the network construction cost.
With the development of wireless technology, the east-west traffic between base stations becomes more and more important, and besides the explosive growth of traffic, the requirement for delay becomes higher and higher, and both of the above two schemes cause the traffic to bypass through upper nodes, resulting in the waste of return network bandwidth and the increase of traffic delay, so we need to establish a nearby connection between the access PEs. The prior art has two methods to realize the requirement of the nearby forwarding:
the bearer network needs to know in advance which wireless base stations have the need for east-west traffic, and then establishes a corresponding connection in advance. This results in a strong coupling between the bearer network and the radio and is not easy to implement.
The bearer network does not care about the need of east-west traffic between base stations, but establishes full mesh (full mesh) connection for all base stations, so that traffic of any base station can be forwarded nearby. However, this method results in too many connections and consumes too much network resources.
In view of the above problems in the related art, no effective solution has been found so far.
Disclosure of Invention
The invention provides a method, a device and a system for establishing a service path, which are used for at least solving the problem that the service path cannot be established according to service drive in the related technology.
According to an aspect of the present invention, there is provided a method for establishing a service path, including: receiving a service sending request of a source service edge network element, wherein the service sending request carries a first address identifier of a source user edge network element administered by the source service edge network element and a second address identifier of a target network element; and establishing a service path between the source user edge network element and the target network element according to global routing information, wherein the global routing information comprises routing information of a plurality of service edge network elements.
Further, before establishing a service path between the source user edge network element and the target network element according to the global routing information, the method further includes: obtaining the routing information of the plurality of service edge network elements by at least one of: dynamic routing protocol learning, static routing configuration.
Further, establishing a service path between the source user edge network element and the target network element according to the global routing information includes: searching a source service edge network element connected with the source user edge network element from the global routing information according to the first address identifier, and establishing a first service path between the source service edge network element and the source user edge network element; establishing a second service path between the source service edge network element and the target network element according to the second address identifier; determining the designated route via the first service path and the second service path as the service path between the source user edge network element and the target network element.
Further, the target network element comprises one of: target user edge device, target service edge device.
Further, the second traffic path includes one of: a multi label switching, MPLS, tunnel and corresponding configuration information, a multi label switching, transport, application, MPLS-TP, tunnel and corresponding configuration information.
According to another aspect of the present invention, there is provided an apparatus for establishing a traffic path, including: a receiving module, configured to receive a service sending request of a source service edge network element, where the service sending request carries a first address identifier of a source user edge network element governed by the source service edge network element and a second address identifier of a target network element; and the establishing module is used for establishing a service path between the source user edge network element and the target network element according to global routing information, wherein the global routing information comprises routing information of a plurality of service edge network elements.
Further, the apparatus further comprises: an obtaining module, configured to obtain the routing information of the multiple service edge network elements through at least one of the following devices before the establishing module establishes a service path between the source user edge network element and the target network element according to global routing information: dynamic routing protocol learning, static routing configuration.
Further, the establishing module further comprises: a processing unit, configured to search, according to the first address identifier, a source service edge network element connected to the source user edge network element from the global routing information, and establish a first service path between the source service edge network element and the source user edge network element; an establishing unit, configured to establish a second service path between the source service edge network element and the target network element according to the second address identifier; a determining unit, configured to determine that the specified route via the first service path and the second service path is a service path between the source user edge network element and the target network element.
Further, the target network element comprises one of: target user edge device, target service edge device.
Further, the second traffic path includes one of: a multi label switching, MPLS, tunnel and corresponding configuration information, a multi label switching, transport, application, MPLS-TP, tunnel and corresponding configuration information.
According to another aspect of the present invention, there is provided a system for establishing a traffic path, including: a source service edge network element, a controller, a target network element, and a source user edge network element; the source service edge network element further comprises a reporting module, wherein the reporting module is used for reporting a service sending request to the controller, and the service sending request carries a first address identifier of a source user edge network element governed by the source service edge network element and a second address identifier of the target network element; the controller is configured to establish a service path between the source user edge network element and the target network element according to global routing information, where the global routing information includes routing information of a plurality of service edge network elements.
According to the invention, a service sending request of a source service edge network element is received, wherein the service sending request carries a first address identifier of a source user edge network element and a second address identifier of a target network element which are governed by the source service edge network element, and a service path between the source user edge network element and the target network element is established according to global routing information, wherein the global routing information comprises routing information of a plurality of service edge network elements, so that the problem that the service path cannot be established according to service driving in the related art is solved, and the effects of reducing network resource consumption, reducing strong coupling between a bearer network and wireless and simplifying a network architecture are achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic diagram of a L2VPN + L3VPN traffic bearer scheme according to the related art of the present invention;
fig. 2 is a hierarchical L3VPN service bearer scheme according to the related art of the present invention;
fig. 3 is a flowchart of a method for establishing a traffic path according to an embodiment of the present invention;
FIG. 4 is a network architecture diagram according to an embodiment of the present invention;
fig. 5 is a block diagram of a configuration of a traffic path establishment apparatus according to an embodiment of the present invention;
fig. 6 is a block diagram of an alternative structure of a traffic path establishment apparatus according to an embodiment of the present invention;
fig. 7 is a block diagram of an alternative structure of a traffic path establishment apparatus according to an embodiment of the present invention;
fig. 8 is a block diagram of a system for establishing a traffic path according to an embodiment of the present invention;
FIG. 9 is a network architecture diagram according to an alternative embodiment of the present invention;
fig. 10 is a schematic diagram of inter-base station X2 traffic path establishment according to an alternative embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the drawings and embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In this embodiment, a method for establishing a service path is provided, and fig. 3 is a flowchart of a method for establishing a service path according to an embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps:
step S302, receiving a service sending request of a source service edge network element, wherein the service sending request carries a first address identifier of a source user edge network element governed by the source service edge network element and a second address identifier of a target network element; alternatively, the address identification information may be an IP address, a MAC address, a temporarily assigned network identification, and the like.
Step S304, establishing a service path between the source user edge network element and the target network element according to the global routing information, wherein the global routing information comprises routing information of a plurality of service edge network elements. Alternatively, the global routing information may be a global routing table.
Through the steps, the method receives a service sending request of a source service edge network element, wherein the service sending request carries a first address identifier of a source user edge network element and a second address identifier of a target network element which are governed by the source service edge network element, and establishes a service path between the source user edge network element and the target network element according to global routing information, wherein the global routing information comprises routing information of a plurality of service edge network elements, so that the problem that the service path cannot be established according to service driving in the related art is solved, and the effects of reducing network resource consumption, reducing strong coupling between a bearer network and a wireless network and simplifying a network framework are achieved.
In an optional implementation manner according to the embodiment of the present invention, before the establishing a service path between a source user edge network element and a target network element according to global routing information, the method further includes: obtaining routing information of a plurality of service edge network elements by at least one of the following methods: dynamic routing protocol learning, static routing configuration. Optionally, the routing information may also be stored in the storage device, and when other service edge network elements need to establish a service path, the stored routing information may be directly used to establish the service path, so that the service path may be established between each service edge network element in the global network and between the user edge network elements connected to the service edge network element.
Optionally, the establishing a service path between the source user edge network element and the target network element according to the global routing information includes:
s11, searching a source service edge network element connected with the source user edge network element from the global routing information according to the first address identifier, and establishing a first service path between the source service edge network element and the source user edge network element;
s12, establishing a second service path between the source service edge network element and the target network element according to the second address identifier;
s13, determining the designated route via the first traffic path and the second traffic path as the traffic path between the source user edge network element and the target network element.
Optionally, the target network element may be, but is not limited to: target user edge device, target service edge device.
When the target network element is the target customer edge device, the target network element further includes a target service edge device connected to the target customer edge device, optionally, the target service edge device connected to the target customer edge device may be found according to the global routing information, and at this time, the second service path includes: a path between a source service edge network element and a target service edge network element, and a path between a target user edge device and a target service edge network element.
Optionally, the second service path may be, but is not limited to: a Multi-Label switching (MPLS) tunnel and corresponding configuration information, a MPLS-Transport Profile (MPLS-TP) tunnel and corresponding configuration information, where the configuration information is used to configure information such as a route of the tunnel, for example, interface information and address information at two ends of the tunnel. The MPLS tunnel and the MPLS-TP tunnel are channels directly communicated with the source service edge equipment and the target service edge equipment, and other core network elements are not needed, so that the rapid forwarding of the service is realized.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In this embodiment, a device for establishing a service path is further provided, where the device may be separately disposed in the controller, or may be coupled to an existing network element in the network, for example, disposed on a service edge device, and the device is configured to implement the foregoing embodiment and preferred embodiments, and the description of the device that has been already described is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 4 is a diagram of a network architecture according to an embodiment of the present invention, and as shown in fig. 4, the apparatus for establishing a traffic path of the embodiment is separately disposed in a controller, and the entire network architecture includes: a first user Edge device CE1, a second user Edge device CE2, a first service Edge device PE1, a second service Edge device PE2, a third service Edge device PE3, and a fourth service Edge device PE4, where a user Edge device (Customer Edge, abbreviated as CE) may be a user device such as a router, a switch, an access network base station, a host, and the like, and a service Edge device (Provider Edge, abbreviated as PE), that is, a service Provider Edge device such as a router and the like, may be connected to the CE, where each PE is connected to the controller.
Fig. 5 is a block diagram of a device for establishing a traffic path according to an embodiment of the present invention, and as shown in fig. 5, the device includes: a receiving module 50, configured to receive a service sending request of a source service edge network element, where the service sending request carries a first address identifier of a source user edge network element governed by the source service edge network element and a second address identifier of a target network element; the establishing module 52 is configured to establish a service path between a source user edge network element and a target network element according to global routing information, where the global routing information includes routing information of a plurality of service edge network elements.
Fig. 6 is a first optional structural block diagram of a device for establishing a traffic path according to an embodiment of the present invention, and as shown in fig. 6, the device includes, in addition to all modules shown in fig. 5: an obtaining module 60, configured to obtain, before the establishing module establishes the service path between the source user edge network element and the target network element according to the global routing information, routing information of a plurality of service edge network elements through at least one of the following devices: dynamic routing protocol learning, static routing configuration.
Fig. 7 is a block diagram of an alternative structure of a traffic path establishment apparatus according to an embodiment of the present invention, and as shown in fig. 7, the apparatus includes, in addition to all modules shown in fig. 5, an establishment module 52 further including:
a processing unit 70, configured to search, according to the first address identifier, a source service edge network element connected to the source user edge network element from the global routing information, and establish a first service path between the source service edge network element and the source user edge network element;
an establishing unit 72, configured to establish a second service path between the source service edge network element and the target network element according to the second address identifier;
a determining unit 74, configured to determine that the specified route via the first traffic path and the second traffic path is a traffic path between the source user edge network element and the target network element.
Optionally, the target network element may be, but is not limited to: target user edge device, target service edge device.
When the target network element is the target customer edge device, the target network element further includes a target service edge device connected to the target customer edge device, optionally, the target service edge device connected to the target customer edge device may be found according to the global routing information, and at this time, the second service path includes: a path between a source service edge network element and a target service edge network element, and a path between a target user edge device and a target service edge network element.
Optionally, the second service path may be, but is not limited to: configuration information corresponding to a multi-label switching (MPLS) tunnel, configuration information corresponding to a multi-label switching (MPLS) -TP tunnel, and the configuration information is used for configuring information such as a tunnel route, such as interface information and address information at two ends of the tunnel. The MPLS tunnel and the MPLS-TP tunnel are channels directly communicated with the source service edge equipment and the target service edge equipment, and other core network elements are not needed, so that the service is rapidly forwarded.
The present embodiment also relates to a systematic approach, and the present embodiment relates to both the network device (e.g., PE in fig. 4) and the server/computer (e.g., controller in fig. 4) when executed.
Fig. 8 is a block diagram of a system for establishing a traffic path according to an embodiment of the present invention, and as shown in fig. 8, the system includes: a source service edge network element 80, a controller 82, a target network element 84, a source user edge network element 86;
the source service edge network element 80 further includes a reporting module 802, where the reporting module 802 is configured to report a service sending request to the controller 82, where the service sending request carries a first address identifier of a source user edge network element 86 governed by the source service edge network element 80 and a second address identifier of a target network element 84;
a controller 82, configured to establish a traffic path 84 between a source user edge network element 86 and a target network element according to global routing information, where the global routing information includes routing information of a plurality of serving edge network elements.
It should be noted that the source user edge network element 86 in the system of this embodiment may be any CE as long as it can perform communication connection with the source service edge network element 80. Optionally, the controller 82 may also be disposed in the source user edge network element 86 or other intermediate network elements, or a separate management device may be disposed to connect the source service edge network element 80 and the source user edge network element 86.
The invention is described in detail below with reference to alternative embodiments according to the invention:
the optional embodiment relates to a forwarding device (PE device) and a controller running MPLS/MPLS-TP L3VPN, and implements on-demand traffic path establishment through interaction between the forwarding device and the controller.
As shown in fig. 4, compared to a conventional network, the present embodiment introduces a controller, and implements the content of the present invention through centralized management of the network by the controller and interaction of the forwarding device and the controller. The centralized management of the controller includes: routing management, routing distribution, path calculation, and the like.
Fig. 9 is a network architecture diagram according to an alternative embodiment of the present invention, and as shown in fig. 9, a reporting module 90 (corresponding to the reporting module in fig. 8) for introducing a connection establishment request in a PE device includes:
s21, the CE1 device sends a message to the PE device by using the IP address of the CE1 device as a source IP and the IP address of the CE2 device as a destination IP, and as the initial state of the PE device in the prior art does not have the routing information of the CE2, the exit of the service cannot be found in a routing table, and further forwarding cannot be realized;
s22, PE1 sends the service sending request to the connection establishment request reporting module, and the module reports to the controller to request for establishing connection;
after receiving the connection establishment request, the controller executes the following steps:
s31, managing the route list of each PE device in the network, including the private network route between CE and PE and the public network route between PE and PE;
s32, receiving a connection establishment request reported by the PE equipment, wherein the connection establishment request comprises information such as a source node, a source IP and a destination IP;
s33, the controller searches the route list according to the destination IP, finds out the corresponding destination network element, and establishes a path between the source node and the destination node, the path can be MPLS tunnel or MPLS-TP tunnel.
S34, the route distribution is carried out between the PE with path connection, the private network route learned between the PE and the CE is distributed to other far-end PE, and the function similar to the distributed route protocol is realized. As PE1 learns about routes to CE1 (which may be learned via dynamic routing protocols or via static routing configurations), the controller may publish the routes of PE1 to other required PE devices. If a tunnel connection is established between PE2 and PE1, it is considered that PE1 and PE2 need to publish routes to each other, and the controller publishes the route of CE1 learned by PE1 to PE 2.
S35, the connection between PE1 and PE2 is established through path establishment and route distribution.
Next, a specific embodiment of the present invention that carries LTE base station services in a packet network and establishes an X2 service path between base stations as needed is described, and fig. 10 is a schematic diagram of establishing an X2 service path between base stations according to an alternative embodiment of the present invention, as shown in fig. 10.
There is a need for eastern and western traffic between base station 1 and base station 2, but the bearer network does not set up a connection for these two base stations in advance, and needs to set up a path connection between access PE1 and access PE2 by a service driver or a service request.
The establishing process of the service path comprises the following steps:
s41, configuring interface IP of PE1 and IP of base station 1 in the same network segment, and interface IP of PE2 and IP of base station 2 in the same network segment.
S42, configuring static route from PE1 to base station 1, and configuring static route from PE2 to base station 2.
S43, the controller obtains the route information of all PE in the whole network to form a global route list.
S44, the base station 1 sends out an IP message to the base station 2, the source IP carried by the message is the IP address of the base station 1, and the destination IP is the IP address of the base station 2.
S45, the access PE1 receives the service message sent by the base station 1, because the PE1 only has the route to the base station 1 and does not have the route to the base station 2, the route table cannot be found, and the service is sent to the service path establishment request reporting module.
And S46, the reporting module sends the request to the controller.
S47, the controller receives the service establishment request reported by the access PE1, the request content includes the source IP and the destination IP information, and the controller finds that the target network element is the access PE2 through the destination IP.
S48, the controller establishes a tunnel from PE1 to PE2, the tunnel using the shortest path without detour through other nodes.
S49, the controller routes each other between PE1 and PE2, so that PE1 obtains the route of base station 2, and PE2 also obtains the route of base station 1.
The connection between the base station 1 and the base station 2 is established, and the subsequent service message from the base station 1 to the base station 2 can be directly forwarded through the path without sending a controller.
The embodiment shows that the method has simple processing flow, strong operability and strong practical value in the packet network.
By the service path establishment mechanism of the embodiment, the on-demand path establishment driven by the service can be realized in the L3VPN network of MPLS/MPLS-TP. The existing service bearing mechanism is changed, namely the service bearing can be realized only by establishing a path in advance, and the connection is established by service driving. The effect of separating service and bearing is achieved, the number of connections of the bearing network is greatly reduced, and the network efficiency is improved. The service opening operation can be realized more flexibly, more accurately and more conveniently by an operator.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in a plurality of processors.
The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, receiving a service sending request of a source service edge network element, wherein the service sending request carries a first address identifier of a source user edge network element governed by the source service edge network element and a second address identifier of a target network element;
s2, establishing a service path between the source user edge network element and the target network element according to the global routing information, wherein the global routing information includes routing information of a plurality of service edge network elements.
Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Optionally, in this embodiment, the processor executes, according to a program code stored in the storage medium, a service sending request for receiving a source service edge network element, where the service sending request carries a first address identifier of a source user edge network element governed by the source service edge network element and a second address identifier of a target network element;
optionally, in this embodiment, the processor executes, according to program codes stored in the storage medium, establishing a traffic path between the source user edge network element and the target network element according to global routing information, where the global routing information includes routing information of a plurality of service edge network elements.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for establishing a service path is characterized by comprising the following steps:
the controller acquires the routing information of the service edge network element of the whole network to form global routing information;
the controller receives a service sending request of a source service edge network element, wherein the service sending request carries a first address identifier of a source user edge network element and a second address identifier of a target network element, and the source user edge network element is managed by the source service edge network element;
the controller searches a source service edge network element connected with the source user edge network element from the global routing information according to the first address identifier, and searches a corresponding target network element from the global routing information according to the second address identifier;
the controller establishes a service path between the source user edge network element and a target network element via a service path directly communicated between the source service edge network element and the target service edge network element connected with the target network element;
the controller generates a route between the source user edge network element and the target network element, and issues the route to a source service edge network element and the target service edge network element which are connected with the source user edge network element;
the target network element is target user edge equipment.
2. The method of claim 1, wherein the routing information of the service edge network element is obtained by at least one of: dynamic routing protocol learning, static routing configuration.
3. The method of claim 1, wherein establishing the traffic path between the source user edge network element and the target network element via a traffic path directly interworking between the source service edge network element and a target service edge network element connected to the target network element comprises:
establishing a first service path between the source service edge network element and the source user edge network element;
establishing a second service path between the source service edge network element and the target network element, where the second service path includes: a path between the source service edge network element and the target service edge network element, and a path between the target network element and the target service edge network element;
determining the designated route via the first service path and the second service path as the service path between the source user edge network element and the target network element.
4. The method of claim 3, wherein the second traffic path comprises one of: a multi label switching, MPLS, tunnel and corresponding configuration information, a multi label switching, transport, application, MPLS-TP, tunnel and corresponding configuration information.
5. An apparatus for establishing a traffic path, applied to a controller, includes:
an obtaining module, configured to obtain routing information of a service edge network element of a whole network to form global routing information;
a receiving module, configured to receive a service sending request of a source service edge network element, where the service sending request carries a first address identifier of a source user edge network element and a second address identifier of a target network element, where the source user edge network element manages the source service edge network element, and the service sending request is reported when the source service edge network element receives a service packet of the source user edge network element managed by the source service edge network element and the target network element that reaches the service packet is not found;
an establishing module, configured to search, according to the first address identifier, a source service edge network element connected to the source user edge network element from the global routing information, search, according to the second address identifier, a corresponding target network element from the global routing information, and establish a service path between the source user edge network element and the target network element via a service path directly intercommunicated between the source service edge network element and the target service edge network element connected to the target network element;
the controller generates a route between the source user edge network element and the target network element, and issues the route to a source service edge network element and the target service edge network element which are connected with the source user edge network element;
the target network element is target user edge equipment.
6. The apparatus of claim 5, wherein the obtaining module obtains the routing information of the service edge network element by at least one of: dynamic routing protocol learning, static routing configuration.
7. The apparatus of claim 5, wherein the establishing module comprises:
a processing unit, configured to establish a first service path between the source service edge network element and the source user edge network element;
an establishing unit, configured to establish a second service path between the source service edge network element and the target network element, where the second service path includes: a path between the source service edge network element and the target service edge network element, and a path between the target network element and the target service edge network element;
a determining unit, configured to determine that the specified route via the first service path and the second service path is a service path between the source user edge network element and the target network element.
8. The apparatus of claim 7, wherein the second traffic path comprises one of: a multi label switching, MPLS, tunnel and corresponding configuration information, a multi label switching, transport, application, MPLS-TP, tunnel and corresponding configuration information.
9. A system for establishing a traffic path, comprising:
a source service edge network element, a controller, a target network element, and a source user edge network element;
the source service edge network element further comprises a reporting module, wherein the reporting module is used for reporting a service sending request to the controller when the source service edge network element receives a service message of a source user edge network element administered by the source service edge network element and does not find a target network element reaching the service message, wherein the service sending request carries a first address identifier of the source user edge network element administered by the source service edge network element and a second address identifier of the target network element;
the controller is configured to obtain routing information of a service edge network element of a whole network to form global routing information, and after receiving a service sending request of a source service edge network element, search a source service edge network element connected to the source user edge network element from the global routing information according to the first address identifier, and search a corresponding target network element from the global routing information according to the second address identifier, so as to establish a service path between the source user edge network element and the target network element via a service path directly intercommunicated between the source service edge network element and the target service edge network element connected to the target network element; the controller generates a route between the source user edge network element and the service edge network element connected with the target network element, and sends the route to the source service edge network element and the target service edge network element connected with the source user edge network element; the target network element is target user edge equipment.
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| CN201610231991.3A CN107294849B (en) | 2016-04-13 | 2016-04-13 | Method, device and system for establishing service path |
| PCT/CN2017/077341 WO2017177794A1 (en) | 2016-04-13 | 2017-03-20 | Service path establishment method, apparatus and system |
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| CN115225652A (en) * | 2021-03-30 | 2022-10-21 | 中移(苏州)软件技术有限公司 | Method and system for determining edge service platform, electronic equipment and storage medium |
| CN114039813B (en) * | 2021-11-08 | 2023-07-04 | 北京天融信网络安全技术有限公司 | Virtual route configuration method and device |
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