WO2018054335A1

WO2018054335A1 - Method and device for implementing layers two and three service bridging and ptn equipment

Info

Publication number: WO2018054335A1
Application number: PCT/CN2017/102776
Authority: WO
Inventors: 侯慧慧
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-09-21
Filing date: 2017-09-21
Publication date: 2018-03-29
Also published as: CN107846299A; CN107846299B

Abstract

Provided in the present disclosure are a method and device for implementing layers two and three service bridging and PTN equipment, for use in implementing layers two and three service bridging for the equipment. The device comprises: a bridged port creation module, configured as to search for idle ports of equipment and to select a predetermined number of idle ports from the idle ports found to form bridged ports; a layers two and three service configuration module, configured as to configure a layer two virtual private network (L2VPN) service on the basis of the bridged ports and of a layer two service port, and to configure a layer three virtual private network (L3VPN) service on the basis of the bridged ports and of a layer three service port; and a layers two and three service bridging module, configured as to loop back the bridged ports, thus forming layers two and three service bridging. In the present disclosure, the method and device for implementing layers two and three service bridging and the PTN equipment utilize idling ports of the equipment to implement layers two and three service bridging, the idle ports of original equipment are used when bridging, thus increasing equipment utilization rate.

Description

Method, device and PTN device for realizing bridging of Layer 2 and Layer 3 services

Technical field

The present application relates to the field of communications, for example, to a method, an apparatus, and a Packet Transport Network (PTN) device for implementing Layer 2 and Layer 3 service bridging.

Background technique

In the era of Long Term Evolution (LTE), an evolved Node B (eNB) is integrated with a base station controller, and the network is gradually flattened. The PTN network introduces a Layer 3 forwarding function, which divides the end-to-end configuration of services into two layers and two layers. In order to make the network more flexible and efficient, the Layer 2 and Layer 3 bridging technologies become the key technologies for LTE bearers.

The Layer 2 and Layer 3 bridging technology needs to have the L2 Virtual Private Network (L2VPN) to access the L3 Virtual Private Network (L3VPN), that is, L2VPN is completed for one service data stream on the same NE node device. (also known as Layer 2 services) termination and L3VPN (also known as Layer 3 services) access (or L3VPN termination and L2VPN access).

The switching chip of the related PTN device cannot complete the L2VPN termination and the L3VPN encapsulation (or the L3VPN termination and the L2VPN encapsulation) in a packet forwarding process, and the device cannot implement the Layer 2 and Layer 3 bridging technologies.

Summary of the invention

In order to overcome the deficiencies of the related art, the present disclosure provides a method, a device, and a PTN device for implementing a Layer 2 and Layer 3 service bridging, which are used to implement Layer 2 and Layer 3 service bridging of the device.

In order to solve the above technical problem, an apparatus for implementing a two-three-layer service bridging in the disclosure, the apparatus includes:

a bridge port creation module configured to find a free port of the device, and select a predetermined number of free ports to form a bridge port among the found idle ports;

The Layer 2 and Layer 3 service configuration module is configured to perform two according to the bridge port and the Layer 2 service port. The configuration of the Layer 2 virtual private network L2VPN service, and the configuration of the Layer 3 virtual private network L3VPN service by selecting the bridge port and the Layer 3 service port;

The Layer 2 and Layer 3 service bridging module is configured to perform loopback of the bridging port to form a Layer 2 and Layer 3 service bridging.

As an improvement to the apparatus of the present disclosure, the bridge port creation module is further configured to set the predetermined number according to a bandwidth requirement of a Layer 2 and Layer 3 service bridge.

As another improvement of the apparatus of the present disclosure, the bridge port creation module includes a virtual port group creation submodule, a member port number setting submodule, a port traversal submodule, and a bridge port selection submodule;

The virtual port group creation submodule is configured to create a virtual port group to form the bridge port;

The member port number setting submodule is configured to set a number of member ports of the virtual port group to the predetermined number;

The port traversal submodule is configured to traverse a switch chip port of the device to find the idle port;

The bridge port selection sub-module is configured to select an idle port to join the virtual port group as a member port in the discovered idle port according to the number of the member ports.

As a modification of the apparatus of the present disclosure, the bridge port selection submodule may be configured to add all the idle ports found to the said when the number of the discovered free ports is less than or equal to the number of the member ports. As a member port in the virtual port group;

When the number of the idle ports that are found is greater than the number of the member ports, select a corresponding number of free ports in the found idle ports to join the virtual port group as member ports, where the corresponding quantity and location are The number of member ports is the same.

As a modification of the apparatus of the present disclosure, the bridge port selection sub-module is further configured to monitor a state change of the device switch chip port, when the number of idle ports is reduced, and the reduced idle port is a member port, from the Removing the reduced idle port from the virtual port group;

When the number of the free port is increased, the difference between the number of the existing member ports in the virtual port group and the number of the member ports is determined. If the difference is greater than 0, the number of the added free ports is less than or equal to The difference, adding all the added idle ports to the virtual port group as members If the number of the added idle ports is greater than the difference, the idle port that selects the difference in the added idle port joins the virtual port group as a member port.

As a further improvement of the apparatus of the present disclosure, the Layer 2 and Layer 3 service configuration module includes a virtual local area network VLAN processing module, a Layer 2 service configuration module, and a Layer 3 service configuration module;

The virtual local area network (VLAN) VLAN processing module is configured to allocate different virtual local area networks to the Layer 2 virtual private network L2VPN service and the Layer 3 virtual private network L3VPN service;

The Layer 2 service configuration module is configured to use the bridge port as a user network interface of the Layer 2 virtual private network L2VPN service, and use the Layer 2 service port as the network of the Layer 2 virtual private network L2VPN service. a node interface, configured to perform the L2VPN service of the Layer 2 virtual private network;

The Layer 3 service configuration module is configured to use the bridge port as a user network interface of the Layer 3 virtual private network L3VPN service, and use the Layer 3 service port as a network of the Layer 3 virtual private network L3VPN service. The node interface performs configuration of the L3VPN service of the three-layer virtual private network.

In order to solve the above technical problem, a PTN device in the present disclosure includes the device for implementing two or three layers of bridging as described above.

To solve the above technical problem, a method for implementing a two-layer and three-layer service bridging in the disclosure, the method includes the following steps:

Finding a free port of the device, selecting a predetermined number of free ports from the found idle ports to form a bridge port;

Performing a configuration of a Layer 2 virtual private network L2VPN service according to the bridge port and a Layer 2 service port, and configuring a Layer 3 virtual private network L3VPN service according to the bridge port and the Layer 3 service port;

The loopback of the bridge port is performed to form a two-layer service bridging.

As an improvement of the method of the present disclosure, the method further includes:

The predetermined number is set according to the bandwidth requirement of the Layer 2 and Layer 3 service bridging.

As another improvement of the method of the present disclosure, the idle port of the acquiring device is acquired in the empty The step of selecting a predetermined number of free ports in the idle port to form a bridge port includes:

Creating a virtual port group to form the bridge port;

Setting the number of member ports of the virtual port group to the predetermined number;

Traversing the switch chip port of the device to find the free port;

And selecting, according to the number of the member ports, the idle port in the discovered idle port to join the virtual port group as a member port.

As a modification of the method of the present disclosure, the step of selecting a free port to join the virtual port group as a member port in the found idle port according to the number of the member ports includes:

When the number of the free ports that are found is less than or equal to the number of the member ports, all the idle ports that are found are added to the virtual port group as member ports;

As a modification of the method of the present disclosure, after the step of selecting a free port to join the virtual port group as a member port, the method further includes:

Monitoring a state change of the switch chip port of the device, when the number of free ports is decreased, and the reduced free port is a member port, removing the reduced idle port from the virtual port group;

When the number of the free port is increased, the difference between the number of the existing member ports in the virtual port group and the number of the member ports is determined. If the difference is greater than 0, the number of the added free ports is less than or equal to The difference value is that all the added idle ports are added to the virtual port group as member ports; if the increased number of free ports is greater than the difference, the idle ports that select the difference are added to the added idle ports. As a member port in the virtual port group.

As a further improvement of the method of the present disclosure, the configuration of the Layer 2 virtual private network L2VPN service is performed according to the bridge port and the Layer 2 service port, and the Layer 3 virtual private is performed according to the bridge port and the Layer 3 service port. The steps of configuring the network L3VPN service include:

Allocating different virtual local area networks to the Layer 2 virtual private network L2VPN service and the Layer 3 virtual private network L3VPN service;

The bridge port is used as the user network interface of the L2VPN service of the Layer 2 virtual private network, and the Layer 2 service port is used as the network node interface of the L2VPN service of the Layer 2 virtual private network, and the Layer 2 virtual private network is performed. Configuration of the L2VPN service;

The bridge port is used as a user network interface of the L3VPN service of the Layer 3 virtual private network, and the Layer 3 service port is used as a network node interface of the Layer 3 virtual private network L3VPN service, and the Layer 3 virtual private network is performed. Configuration of the L3VPN service.

Embodiments of the present disclosure also provide a computer readable storage medium storing computer executable instructions arranged to perform the above method.

An embodiment of the present disclosure further provides an electronic device, including:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described above.

The method, the device and the PTN device for implementing the bridging of the Layer 2 and Layer 3 services in the present disclosure use the idle port of the device to implement the Layer 2 and Layer 3 bridging, and no need to redevelop the new device to provide the Layer 2 and Layer 3 bridging functions, and the original device is used. Free ports improve device utilization.

BRIEF abstract

1 is a schematic structural diagram of an apparatus for implementing bridging of Layer 2 and Layer 3 services according to an embodiment of the present disclosure;

2 is a schematic diagram of service forwarding of an apparatus for implementing Layer 2 and Layer 3 service bridging in an embodiment of the present disclosure;

3 is a flow chart of a dynamically elected member port of a bridge port creation module in an embodiment of the present disclosure;

4 is a schematic structural diagram of a PTN device according to an embodiment of the present disclosure;

FIG. 5 is a flowchart of a method for implementing a Layer 2 and Layer 3 service bridging according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.

detailed description

The present disclosure provides a method, an apparatus, and a PTN device for implementing Layer 2 and Layer 3 service bridging. The present disclosure will be described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described herein are merely illustrative of the disclosure and are not intended to be limiting.

As shown in FIG. 1 , an apparatus for implementing two-three-layer service bridging in the implementation of the present disclosure includes:

The bridge port creation module 20 is configured to look up a free port of the device, select a predetermined number of free ports to form a bridge port among the found idle ports, and can also be configured to set a load balancing mode, such as setting according to the source IP and The destination IP performs load sharing.

The Layer 2 and Layer 3 service configuration module 40 is configured to perform L2VPN service configuration according to the bridge port and the Layer 2 service port, and configure the L3VPN service according to the bridge port and the Layer 3 service port.

The Layer 2 and Layer 3 service bridging module 60 is configured to perform loopback of the bridge port to form a Layer 2 and Layer 3 service bridging.

As shown in FIG. 2, the embodiment of the present disclosure dynamically forms a bridge port by using an idle port on the PTN device, and the bridge port forms an L2VPN service with the original L2 port of the device, that is, a Layer 2 service port, and the original L3 port of the device. The L3VPN service is formed, and the bridge port is looped back. The L2VPN termination and L3VPN encapsulation (or L3VPN termination and L2VPN encapsulation) are implemented through two service data flows and loopbacks to implement Layer 2 and Layer 3 bridging.

With the device in the embodiment of the present disclosure, the device idle port can be used to implement Layer 2 and Layer 3 bridging on the device that does not support the Layer 2 and Layer 3 bridging functions, and the new device is no longer needed to provide the Layer 2 and Layer 3 bridging functions, and the It is an idle port of the original device, which improves the utilization of the original device.

On the basis of the above embodiments, a modified embodiment of the above embodiment can be proposed. In order to make the description brief, only the differences from the above embodiments will be described in the respective modified embodiments.

In an embodiment of the present disclosure, the bridge port creation module is further configured to set the predetermined number according to a bandwidth requirement of a Layer 2 and Layer 3 service bridge.

In the embodiment of the present disclosure, the bridge port uses a large bandwidth TRUNK group (ie, a VE-group, a virtual port group) formed by the idle port of the device, and can carry more Layer 2 and Layer 3 bridge services.

For example, if 1G bandwidth is required, you can select one free port as the member port. If 2G bandwidth is required, you can select two free ports as member ports. If 3G bandwidth is required, you can select three free ports as member ports. And so on.

The bridge port creation module 20 may include a virtual port group creation submodule, a member port number setting submodule, a port traversal submodule, and a bridge port selection submodule;

The virtual port group creation submodule is configured to create a virtual port group to form a bridge port;

The member port number setting submodule is configured to set a number of member ports of the virtual port group to a predetermined number;

The port traversing sub-module configured to traverse the switch chip port of the device to find an idle port;

The bridge port selection sub-module is configured to select an idle port to join the virtual port group as a member port in the found idle port according to the number of the member ports.

The bridge port selection sub-module may be configured to add all the idle ports that are found to the virtual port group as member ports if the number of the free ports that are found is less than or equal to the number of the member ports;

If the number of the free ports is greater than the number of the member ports, the number of the free ports that are found is the number of the free ports that are added to the virtual port group, and the corresponding number is the same as the number of the member ports.

As shown in Figure 3:

Step 1: The virtual port group creation sub-module creates a virtual port group as a bridge port; the member port number setting sub-module sets the number of member ports of the virtual port group MAX; the port traversal sub-module traverses the switch chip port of the device to find idle port;

Step 2. If there is a free port, go to step 3. If the idle port is not found at the end of the traversal, the selection fails, the error is reported, and the process ends.

Step 3: Add the found free port to the VE-group member port list PORT_LIST, and add ++NUM for each port.

In step 4, it is determined whether the number of PORT_LIST member ports NUM is already equal to MAX. If equal MAX, go to step 5. If it is not equal to MAX, go to step 1.

Step 5: Add the port in the PORT_LIST list to the VE-group, and the selection is successful and then the end.

In another embodiment of the present disclosure, the bridge port selection sub-module is further configured to monitor a state change of a switch chip port of the device, when the number of free ports is reduced, and the reduced free port is a member port, Removing the corresponding reduced idle port from the virtual port group, and continuing to select the idle port from the found idle port to join the virtual port group as a member port; wherein, the idle port is continuously selected from the found idle port. The step of adding a port to the virtual port group as a member port includes: determining whether there is a free port that is not a member port in the found idle port, and if there is an idle port that does not belong to the member port, the idle port does not belong to the member port. Select a free port from the port to join the virtual port group as a member port.

In this embodiment, the status of the idle port of the switch chip is changed by the monitoring device: if the free port is reduced, the corresponding port is removed from the VE-group, and the number of loopback ports of the VE-group is less than MAX, then the idle port list is traversed. Add the remaining free ports to the VE-group until the VE-group member port is full or there are no free ports remaining. If the free port is increased, see if the VE-group has insufficient member ports. If there are insufficient member ports, Add a member port to the VE-group until the VE-group member port is full or there are no free ports remaining. This embodiment effectively ensures that the bridge port maintains the largest possible bandwidth and is convenient for carrying more Layer 2 and Layer 3 bridging services.

In a further embodiment of the present disclosure, the Layer 2 and Layer 3 service configuration module 60 includes a virtual local area network (VLAN) VLAN processing module, a Layer 2 service configuration module, and a Layer 3 service configuration module.

The virtual local area network (VLAN) VLAN processing module is configured to allocate different virtual local area networks to the L2VPN service and the L3VPN service;

The Layer 2 service configuration module is configured to use the bridge port as a user network interface (UNI) of the L2VPN service, and configure the Layer 2 service port as a network node interface (NNI) of the L2VPN service to configure the L2VPN service;

The Layer 3 service configuration module is configured to use the bridge port as a user network interface (UNI) of the L3VPN service, and configure the Layer 3 service port as a network node interface (NNI) of the L3VPN service to configure the L3VPN service.

Because the L2VPN service and the L3VPN service use the same loopback port, the service received from the bridge port needs to be differentiated from the L2VPN or the L3VPN. The services are differentiated by the internal control VLAN (Virtual Local Area Network). The VE-group ID number is statically assigned. For example, the internal control VLAN of the L2VPN is the VE-group ID, and the internal control VLAN of the L3VPN is the VE-group ID+fixed-value. After the L2VPN is terminated, the VLAN of the user packet needs to be replaced with the internal control VLAN of the L3VE. After the loopback, the L3VPN is taken, and vice versa. The member port of the VE-group needs to be added to the VLAN corresponding to the L3VE. The CPU port is added to the VLAN corresponding to L3VE when the VE-Group is created. Therefore, the VLAN processing module is responsible for allocating the L2VPN service and the L3VPN service internal control VLAN to distinguish whether the same loopback port can receive the L2VPN service or the L3VPN service when receiving two types of packets.

In the device of the embodiment of the present disclosure, the virtual port group creation sub-module is responsible for creating a trunking TRUNK group (also referred to as a VE-group), using the VE-group as a bridge loopback port, and dynamically adding the device idle port to the VE- In the group, the port bandwidth is extended to carry more Layer 2 and Layer 3 services; the bridge port selection sub-module is responsible for dynamically selecting the device switch chip idle port and adding it to the VE-group; the VLAN processing module is responsible for allocating the L2VPN service and the L3VPN service. The internal control VLAN is used to distinguish between the L2VPN service and the L3VPN service when the two types of packets are received on the same loopback port. The Layer 2 service configuration module is responsible for creating the L2VPN service, and the Layer 3 service configuration module is responsible for creating the L3VPN service. The bridging module is responsible for looping back the bridge port to form a Layer 2 and Layer 3 service bridge.

As shown in FIG. 4, a PTN device in the embodiment of the present disclosure includes the device for implementing two-three-layer bridging according to any one of the foregoing embodiments.

As shown in FIG. 5, a method for implementing Layer 2 and Layer 3 service bridging in an embodiment of the present disclosure includes the following steps:

S501. Search for an idle port of the device, and select a predetermined number of free ports in the found idle port to form a bridge port.

S502. Configure the L2VPN service according to the bridge port and the Layer 2 service port, and configure the L3VPN service according to the bridge port and the Layer 3 service port.

S503: Perform loopback of the bridge port to form a Layer 2 and Layer 3 service bridge.

Optionally, the method may further include: setting the predetermined quantity according to a bandwidth requirement of the Layer 2 and Layer 3 service bridging.

The step of acquiring the idle port of the device and selecting a predetermined number of free ports to form a bridge port in the obtained idle port may include:

Create a virtual port group to form a bridge port;

Traversing the switch chip port of the device to find a free port;

According to the number of the member ports, the idle port is selected as the member port in the virtual port group.

In this embodiment, a RUN-group (VE-group) for Layer 2 and Layer 3 bridging is created on the PTN device, and a load balancing mode is set, for example, load balancing is performed according to the source IP address and the destination IP address. The device switch chip idle port is traversed, and the free port is added to the VE-group to form a bridge port with a large bandwidth.

Optionally, the step of selecting a corresponding number of free ports to join the virtual port group as a member port in the found idle ports includes:

If the number of the free ports is less than or equal to the number of the member ports, all the idle ports that are found are added to the virtual port group as member ports.

After the step of selecting a corresponding number of free ports to join the virtual port group as a member port, the method further includes:

Monitoring a state change of a switch chip port of the device, when the number of free ports is reduced, and the reduced free port is a member port, removing the corresponding reduced idle port from the virtual port group, and finding the free port from And continue to select the idle port to join the virtual port group as a member port; wherein, the idle port is continuously selected from the found idle port to join the virtual port group. The step of the member port includes: determining whether there are any free ports that are not part of the member port, and if there are free ports that are not member ports, the idle port is selected from the idle ports that are not member ports. As a member port in the virtual port group;

Optionally, the step of performing the configuration of the L2VPN service according to the bridging port and the Layer 2 service port, and the step of selecting the configuration of the L3VPN service by using the bridge port and the Layer 3 service port, including:

Allocating different virtual local area networks to the L2VPN service and the L3VPN service;

The bridge port is used as the user network interface of the L2VPN service, and the Layer 2 service port is used as the network node interface of the L2VPN service to configure the L2VPN service.

The bridge port is used as the user network interface of the L3VPN service, and the Layer 3 service port is used as the network node interface of the L3VPN service to configure the L3VPN service.

Because the L2VPN service and the L3VPN service use the same loopback port, the service received from the bridge port needs to be differentiated from the L2VPN or the L3VPN. The services are differentiated by the internal control VLAN to perform VLAN processing on the port and service. The VE-group ID number can be statically assigned. For example, the internal control vlan of the L2VPN is the VE-group ID, and the internal control vlan of the L3VPN is the VE-group ID+fixed-value. After the L2VPN is terminated, the VLAN of the user packet needs to be replaced with the internal control VLAN of the L3VE. After the loopback, the L3VPN is taken, and vice versa. To process the CPU on the ARP packet, the member port of the VE-group needs to be added to the VLAN corresponding to the L3VE. The CPU port is added to the VLAN corresponding to L3VE when the VE-Group is created.

An alternative application example is described to describe the method of the embodiments of the present disclosure. The application examples include:

Step 1: Create a RUN-group (VE-group) for the Layer 2 and Layer 3 bridges on the PTN. Set the load balancing mode. For example, set the load balancing based on the source IP address and destination IP address.

Step 2: Traverse the device switch chip idle port, add the idle port to the VE-group, and form a bridge port with a large bandwidth.

Step 3. Perform VLAN processing on the port and service.

Step 4: Configure the L2VPN service by using the bridge port as the access port, and select the bridge port as the UNI port. The original Layer 2 service port is the NNI port and the L2VPN service is configured.

Step 5: Configure the L3VPN service by using the bridge port as the access port, and select the bridge port as the UNI port. The original Layer 3 service port is the NNI port and the L3VPN service is configured.

Step 6. Perform loopback of the bridge port to form two or three layers of bridges.

Embodiments of the present disclosure also provide a computer readable storage medium storing computer executable instructions arranged to perform the method of any of the above embodiments.

The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

The embodiment of the present disclosure further provides a schematic structural diagram of an electronic device. Referring to FIG. 6, the electronic device includes:

At least one processor 60, which is exemplified by a processor 60 in FIG. 6; and a memory 61, may further include a communication interface 62 and a bus 63. The processor 60, the communication interface 62, and the memory 61 can complete communication with each other through the bus 63. Communication interface 62 can be used for information transfer. Processor 60 may invoke logic instructions in memory 61 to perform the methods of the above-described embodiments.

Furthermore, the logic instructions in the memory 61 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.

The memory 61 is used as a computer readable storage medium for storing software programs, computer executable programs, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 60 executes the function application and the data processing by executing the software program, the instruction and the module stored in the memory 61, that is, the method for implementing the two-three-layer service bridging in the foregoing method embodiment.

The memory 61 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like. Further, the memory 61 may include a high speed random access memory, and may also include a nonvolatile memory.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in the embodiments of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like. A medium that can store program code, or a transitory storage medium.

The method in the embodiment of the present disclosure no longer needs to re-develop a new device to provide a Layer 2 and Layer 3 bridging function, and uses the idle port of the original device to improve the utilization of the original device, and the bridge port uses the device idle port to form. The large bandwidth TRUNK group can carry more Layer 2 and Layer 3 bridging services.

The method for implementing the Layer 2 and Layer 3 service bridging described in connection with the examples disclosed in the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more combinations of one or more functional blocks and/or functional blocks in the functional blocks shown in FIGS. 1 and 4 (eg, a bridge port creation module) may correspond to a computer program flow. Each software module can also correspond to each hardware module. These software modules may correspond to the respective steps shown in FIG. 5, respectively. These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).

The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable hard drive, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium may be located in an application specific integrated circuit. The software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the mobile terminal uses a larger capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.

One or more of the functional block diagrams described with respect to Figures 1 and 4 and/or one or more combinations of functional block diagrams (e.g., bridge port creation modules) may be implemented as general purpose processing for performing the functions described herein. , digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof. One or more of the functional blocks described with respect to Figures 1 and 4 and/or one or more combinations of functional blocks may also be implemented as a combination of computer devices, e.g., a combination of a DSP and a microprocessor, multiple micro A processor, one or more microprocessors in communication with the DSP, or any other such configuration.

While the present application has been described with respect to the specific examples of the present disclosure, those skilled in the art can devise modifications of the present disclosure without departing from the embodiments of the present disclosure.

Those skilled in the art can make various modifications to the method of the present disclosure, which are still within the protection scope of the present disclosure, without departing from the disclosure.

Industrial applicability

The method, device and PTN device for implementing the bridging of the Layer 2 and Layer 3 services provided by the application improve the utilization rate of the device.

Claims

A device for implementing bridging of Layer 2 and Layer 3 services, comprising:

a bridge port creation module configured to find a free port of the device, and select a predetermined number of free ports to form a bridge port among the found idle ports;

The Layer 2 and Layer 3 service configuration module is configured to perform a Layer 2 virtual private network L2VPN service configuration according to the bridge port and the Layer 2 service port, and perform a Layer 3 virtual private network L3VPN service according to the bridge port and the Layer 3 service port. Configuration;

The Layer 2 and Layer 3 service bridging module is configured to perform loopback of the bridging port to form a Layer 2 and Layer 3 service bridging.
The apparatus of claim 1, wherein the bridge port creation module is further configured to set the predetermined number according to a bandwidth requirement of a Layer 2 and Layer 3 service bridge.
The apparatus of claim 2, wherein the bridge port creation module comprises a virtual port group creation submodule, a member port number setting submodule, a port traversal submodule, and a bridge port selection submodule;

The virtual port group creation submodule is configured to create a virtual port group to form the bridge port;

The member port number setting submodule is configured to set a number of member ports of the virtual port group to the predetermined number;

The port traversal submodule is configured to traverse a switch chip port of the device to find the idle port;

The bridge port selection sub-module is configured to select an idle port to join the virtual port group as a member port in the discovered idle port according to the number of the member ports.
The apparatus of claim 3, wherein the bridge port selection sub-module is configured to join all of the discovered idle ports when the number of the discovered free ports is less than or equal to the number of the member ports The virtual port group is a member port;

When the number of the free ports found is greater than the number of the member ports, the found space is empty. A number of idle ports are selected as the member ports in the virtual port group, wherein the corresponding number is consistent with the number of the member ports.
The apparatus of claim 3, wherein the bridge port selection sub-module is further configured to monitor a state change of the device switch chip port, when the number of free ports is reduced, and the reduced free port is a member port, Removing the reduced idle port from the virtual port group;

When the number of the free port is increased, the difference between the number of the existing member ports in the virtual port group and the number of the member ports is determined. If the difference is greater than 0, the number of the added free ports is less than or equal to The difference value is that all the added idle ports are added to the virtual port group as member ports; if the increased number of free ports is greater than the difference, the idle ports that select the difference are added to the added idle ports. As a member port in the virtual port group.
The device according to any one of claims 1-5, wherein the two-layer service configuration module comprises a virtual local area network VLAN processing module, a layer 2 service configuration module, and a three-layer service configuration module;

The virtual local area network (VLAN) VLAN processing module is configured to allocate different virtual local area networks to the Layer 2 virtual private network L2VPN service and the Layer 3 virtual private network L3VPN service;

The Layer 2 service configuration module is configured to use the bridge port as a user network interface of the Layer 2 virtual private network L2VPN service, and use the Layer 2 service port as the network of the Layer 2 virtual private network L2VPN service. a node interface, configured to perform the L2VPN service of the Layer 2 virtual private network;

The Layer 3 service configuration module is configured to use the bridge port as a user network interface of the Layer 3 virtual private network L3VPN service, and use the Layer 3 service port as a network of the Layer 3 virtual private network L3VPN service. The node interface performs configuration of the L3VPN service of the three-layer virtual private network.
A PTN device comprising a device for implementing two or three layers of bridging according to any of claims 1-6.
A method for implementing Layer 2 and Layer 3 service bridging includes:

Finding a free port of the device, selecting a predetermined number of free ports from the found idle ports to form a bridge port;

Performing a configuration of a Layer 2 virtual private network L2VPN service according to the bridge port and a Layer 2 service port, and configuring a Layer 3 virtual private network L3VPN service according to the bridge port and the Layer 3 service port;

The loopback of the bridge port is performed to form a two-layer service bridging.
The method of claim 8 further comprising:

The predetermined number is set according to the bandwidth requirement of the Layer 2 and Layer 3 service bridging.
The method of claim 9, wherein the step of finding a free port of the device and selecting a predetermined number of free ports from the found free ports to form a bridge port comprises:

Creating a virtual port group to form the bridge port;

Setting the number of member ports of the virtual port group to the predetermined number;

Traversing the switch chip port of the device to find the free port;

And selecting, according to the number of the member ports, the idle port in the discovered idle port to join the virtual port group as a member port.
The method of claim 10, wherein the step of selecting a free port to join the virtual port group as a member port in the found idle port according to the number of the member ports includes:

When the number of the free ports that are found is less than or equal to the number of the member ports, all the idle ports that are found are added to the virtual port group as member ports;

When the number of the idle ports that are found is greater than the number of the member ports, select a corresponding number of free ports in the found idle ports to join the virtual port group as member ports, where the corresponding quantity and location are The number of member ports is the same.
The method of claim 11, wherein the step of selecting a free port to join the virtual port group as a member port in the found idle port according to the number of the member ports further includes:

Monitoring a state change of the switch chip port of the device, when the number of free ports is decreased, and the reduced free port is a member port, removing the reduced idle port from the virtual port group;

When the number of the idle port is increased, the difference between the number of the existing member ports in the virtual port group and the set number of the member ports is determined. If the difference is greater than 0, the number of free ports added is smaller than Or equal to the difference, adding all the added idle ports to the virtual port group as member ports; if the increased number of free ports is greater than the difference, selecting the free port of the difference in the added idle ports Join the virtual port group as a member port.
The method according to any one of claims 8 to 12, wherein the configuration of the Layer 2 virtual private network L2VPN service is performed according to the bridge port and the Layer 2 service port, and according to the bridge port and the Layer 3 service port. The steps of configuring the three-layer virtual private network L3VPN service include:

Allocating different virtual local area networks to the Layer 2 virtual private network L2VPN service and the Layer 3 virtual private network L3VPN service;

The bridge port is used as the user network interface of the L2VPN service of the Layer 2 virtual private network, and the Layer 2 service port is used as the network node interface of the L2VPN service of the Layer 2 virtual private network, and the Layer 2 virtual private network is performed. Configuration of the L2VPN service;

The bridge port is used as a user network interface of the L3VPN service of the Layer 3 virtual private network, and the Layer 3 service port is used as a network node interface of the Layer 3 virtual private network L3VPN service, and the Layer 3 virtual private network is performed. Configuration of the L3VPN service.
A computer readable storage medium storing computer executable instructions arranged to perform the method of any one of claims 8-13.