WO2018006711A1

WO2018006711A1 - Service processing method and device

Info

Publication number: WO2018006711A1
Application number: PCT/CN2017/089585
Authority: WO
Inventors: 陈亮; 王春霞
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-07-08
Filing date: 2017-06-22
Publication date: 2018-01-11
Also published as: CN107592252B; CN107592252A

Abstract

Provided in the present application are a service processing method and device, the method comprising: adding to a layer 2 virtual private network (L2VPN) every access circuit (AC) member or pseudowire (PW) member established on a ring node interface on an Ethernet ring network; if there is a fault on the Ethernet ring network, determining the state of the AC member or PW member corresponding to each ring node interface; according to the determined state of the AC member or PW member corresponding to each ring node interface, determining a protective switching result used to protect the Ethernet ring network; according to the determined protective switching result, performing service traffic forwarding processing.

Description

Business processing method and device

Technical field

The embodiments of the present invention relate to, but are not limited to, the field of communications, and in particular, to a service processing method and apparatus.

Background technique

The Ethernet Ring Protection Switch (ERPS) is a link layer protocol applied to the Ethernet ring network to protect the service traffic of the virtual local area network (VLAN). When a link fails, ERPS can quickly resume network communication and has a high convergence speed.

An Ethernet ring network usually consists of a plurality of nodes connected end to end to form a ring, one of which is the master node and the other nodes are the transit nodes. The two ports connected to the ring network on the master node are the master port and the slave port respectively, and the ring link connected to the slave port is a ring protection link (Ring Protection Link, RPL for short). When the Ethernet ring is in the normal state, the primary port is opened, the secondary port is blocked, traffic is transmitted on the primary port, and service traffic is blocked on the ring protection link, as shown in Figure 1. When the Ethernet ring link fails, the slave port status changes from blocking to on, and traffic is transmitted on the ring protection link, as shown in Figure 2.

Layer 2 Virtual Private Network (L2VPN) is a Layer 2 virtual private network technology based on Multi-Protocol Label Switching (MPLS). In the common MPLS L2VPN network model, for example, as shown in FIG. 3, the Provider Edge device (PE), the tunnel, and the Customer Edge device (CE) are usually used. Part of the composition. The L2VPN establishes a PseudoWire (PW) between the PEs. The access circuit (Attachment Circuit, AC for short) is established on the CE. An L2VPN service instance contains several PW members and AC members.

Therefore, an Ethernet ring network protection method and apparatus are proposed. When the ring link fails, it can effectively protect the traffic on the Ethernet ring network. The method needs to add a ring network node to the VLAN service and update the MAC address table to protect the service traffic.

Summary of the invention

The following is a summary of the subject matter described in detail herein, and is not intended to limit the scope of the claims.

The embodiment of the invention provides a service processing method and device, so that the Ethernet ring protection protocol can be applied to an L2VPN scenario.

The embodiment of the invention adopts the following technical solutions:

A business processing method comprising:

Adding access circuit (AC) members or pseudowire (PW) members established on each ring node port of the Ethernet ring network to the Layer 2 virtual private network (L2VPN);

Determining the status of an AC member or a PW member corresponding to each ring node port in the case of a failure on the Ethernet ring network;

Determining, according to the determined status of the AC member or the PW member corresponding to each ring node port, a protection switching result for protecting the Ethernet ring network;

And performing service traffic forwarding processing according to the determined protection switching result.

The method further includes: before the step of adding the AC member or the PW member established on each ring node port of the Ethernet ring network to the L2VPN, the method further includes:

Determining a member type of each ring node port of the Ethernet ring network, where the member type includes: an AC member or a PW member;

In the case that a ring node port belongs to the L2VPN, an AC member is established on the ring node port;

In the case where a ring node port spans a multi-protocol label switching MPLS network, a PW member is established on the ring node port.

The step of determining the status of the AC member or the PW member corresponding to each ring node port in the case that the Ethernet ring network is faulty includes:

Determining whether the AC member or the PW member corresponding to each ring node port has service traffic;

If the result of the judgment is that the AC member or the PW member does not have service traffic, determine The status of the AC member or PW member is normal.

If the result of the determination is that the AC member or the PW member has the service traffic, determine whether the AC member or the PW member is faulty; if the result of the determination is that the AC member or the PW member is faulty, determine the The status of the AC member or the PW member is abnormal. If the result is that the AC member or the PW member is not faulty, the status of the AC member or PW member is normal.

After the step of determining the protection switching result of the Ethernet ring network according to the determined status of the AC member or the PW member corresponding to each ring node port, the method further includes:

Notifying the ringback network of the ring ring network other than the ring node that first perceived the fault, and setting the state of the corresponding AC member or PW member for the other ring node.

After the step of performing the service traffic forwarding process according to the determined protection switching result, the method further includes:

In the case that it is determined that the failure of the Ethernet ring network has disappeared, the state of the AC member or PW member that has been updated at the time of the failure is restored.

The determining, according to the determined status of the AC member or the PW member corresponding to each ring node port, the step of protecting the protection switching result of the Ethernet ring network includes:

If the Ethernet ring network is faulty, the protection switching result of the AC or PW member of the port where the RPL is located is blocked. The protection switching result of the AC or PW member of the other port is turned on. If the Ethernet ring network fails, The protection switching result of the AC or PW member connected to the faulty link is blocked. The protection switching result of the AC or PW member of other ports is open.

The step of performing service traffic forwarding processing according to the determined protection switching result includes:

If the protection switching result is turned on, the service traffic is forwarded; if the protection switching result is blocked, the service traffic is not forwarded.

A service processing device includes: a joining module, a first determining module, a second determining module, and Processing module, wherein

The adding module is configured to: join an access circuit AC member or a pseudowire PW member established on each ring node port of the Ethernet ring network into the layer 2 virtual private network L2VPN;

The first determining module is configured to: determine a state of an AC member or a PW member corresponding to each ring node port if a fault occurs on the Ethernet ring network;

The second determining module is configured to: determine, according to the determined status of the AC member or the PW member corresponding to each ring node, the protection switching result used to protect the Ethernet ring network;

The processing module is configured to: perform service traffic forwarding processing according to the determined protection switching result.

The device further includes: a third determining module, a first establishing module, and a second establishing module, wherein

The third determining module is configured to: determine a member type of each ring node port establishing member of the Ethernet ring network, where the member type includes: an AC member or a PW member;

The first establishing module is configured to: establish an AC member on the ring node port if the ring node port belongs to the L2VPN;

The second establishing module is configured to establish a PW member on the ring node port if the ring node port traverses the multi-protocol label switching MPLS network.

The first determining module includes: a first determining unit, a first determining unit, a second determining unit, a second determining unit, and a third determining unit, wherein

The first determining unit is configured to: determine whether the AC member or the PW member corresponding to each ring node port has service traffic;

The first determining unit is configured to: determine that the status of the AC member or the PW member is normal if the result of the first determining unit is that the AC member or the PW member does not have service traffic;

The second judging unit is configured to: determine whether the AC member or the PW member is faulty if the result of the first judging unit is that the AC member or the PW member has service traffic;

The second determining unit is configured to: the result of the determination in the second determining unit is the AC If the member or the PW member is faulty, determine that the status of the AC member or PW member is abnormal.

The third determining unit is configured to determine that the state of the AC member or the PW member is normal if the result of the second determining unit is that the AC member or the PW member has not failed.

The device also includes a notification module, wherein

The notification module is configured to: notify the other ring nodes in the Ethernet ring network except the ring node that first perceived the fault, and set the corresponding AC member or PW to the other ring node. The status of the member.

The device also includes a recovery module, wherein

The recovery module is configured to: restore the state of the AC member or PW member that was updated when the fault occurred, in the case that it is determined that the fault on the Ethernet ring network has disappeared.

The second determining module is configured to determine, according to the determined status of the AC member or the PW member corresponding to each ring node port, the protection switching result used to protect the Ethernet ring network:

The processing module is configured to perform service traffic forwarding processing according to the determined protection switching result according to the following manner:

A storage medium. The storage medium is configured to store program code for performing the following steps: adding an access circuit AC member or a pseudowire PW member established on each ring node port of the Ethernet ring network to the layer 2 virtual private network L2VPN; In the case of a fault on the Ethernet ring network, the status of the AC member or the PW member corresponding to each ring node port is determined; and the state of the AC member or the PW member corresponding to each ring node port is determined according to the determined state. Determining the protection switching result of the Ethernet ring network; performing service traffic forwarding processing according to the determined protection switching result.

Wherein the storage medium is further configured to store program code for performing the following steps: before adding the AC member or the PW member established on each ring node port of the Ethernet ring network to the L2VPN, The method includes: determining a member type of each ring node port establishing member on the Ethernet ring network, where the member type includes: an AC member or a PW member; and in a case where the ring node port belongs to the L2VPN, in the link An AC member is established on the point port; in the case that the ring node port crosses the multi-protocol label switching MPLS network, a PW member is established on the ring node port.

The storage medium is further configured to store program code for performing the following steps: determining that the status of the AC member or the PW member corresponding to each ring node port in the case of a failure in the Ethernet ring network comprises: determining each of the Whether the AC member or the PW member corresponding to the ring node port has the service traffic; if the result is that the AC member or the PW member does not have the service traffic, the status of the AC member or the PW member is normal; If the AC member or the PW member is faulty, the AC member or the PW member is faulty. If the AC member or the PW member is faulty, the AC member or the AC member is determined. The status of the PW member is abnormal. If the result is that the AC member or the PW member is not faulty, the status of the AC member or PW member is determined to be normal.

Wherein the storage medium is further configured to store program code for performing the step of: determining, according to the determined status of the AC member or the PW member corresponding to each ring node port, the method for protecting the Ethernet ring network After the protection of the handover result, the method further includes: notifying, by using the protection switching result, other ring nodes except the ring node in the Ethernet ring network, and setting the status of the corresponding AC member or PW member in the other ring node. .

The storage medium is further configured to store program code for performing the following steps: after performing the service traffic forwarding process according to the determined protection switching result, further comprising: determining that the fault on the Ethernet ring network disappears , restore the status of the AC member or PW member that was updated when the fault occurred.

An AC member or PW member established on each ring node port of the Ethernet ring network is added to the L2VPN. When the Ethernet ring network fails, the AC member or the PW member can detect the fault. Specifically, OAM detection can be deployed on the AC member or PW member to quickly detect the fault. After the AC member or PW member senses the fault, notify the ERPS of the fault. protocol. The ERPS protocol determines the protection switching result based on the fault of the AC member or the PW member, that is, whether the AC member or the PW member is blocked or opened. Traffic forwarding is performed by an AC member or a PW member based on the blocked state or the open state.

Through the above technical solution, the AC member or the PW member established on each ring node of the Ethernet ring network is added to the L2VPN, and the protection switching result is determined according to the state of the AC member or the PW member corresponding to each ring node port, and the service traffic is forwarded. The Ethernet ring protection protocol can be applied to the L2VPN scenario to effectively perform Ethernet ring protection switching, because the state of the AC member or the PW member established on the ring node is used for protection switching and service traffic forwarding. The effect of protecting L2VPN service traffic.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

Figure 1 is a schematic diagram of a topology in a normal state under the protection of a ring network;

2 is a schematic diagram of a topology in a fault state under a protection of a ring network;

3 is a schematic diagram of a topology of an MPLS L2VPN network model;

4 is a block diagram showing the hardware structure of a terminal of a service processing method according to an embodiment of the present invention;

FIG. 5 is a flowchart of a service processing method according to an embodiment of the present invention; FIG.

6 is a structural block diagram of an Ethernet ring protection device according to a preferred embodiment of the present invention;

7 is a flow chart of a service processing method in accordance with a preferred embodiment of the present invention;

FIG. 8 is a schematic diagram of a topology of an L2VPN-based Ethernet ring network in a normal state according to a preferred embodiment of the present invention; FIG.

9 is a schematic diagram of a topology in an L2VPN-based Ethernet ring network protection fault state according to a preferred embodiment of the present invention;

10 is an L2VPN-based Ethernet ring network protection not associated with a preferred embodiment of the present invention. Schematic diagram of the topology in the fault state of the member;

11 is a structural block diagram 1 of a service processing apparatus according to an embodiment of the present invention;

FIG. 12 is a second structural block diagram of a service processing apparatus according to an embodiment of the present invention; FIG.

FIG. 13 is a structural block diagram of a first determining module 114 of a service processing apparatus according to an embodiment of the present invention;

FIG. 14 is a structural block diagram 3 of a service processing apparatus according to an embodiment of the present invention; FIG.

FIG. 15 is a structural block diagram 4 of a service processing apparatus according to an embodiment of the present invention.

Detailed

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

However, by adding a ring network node to a VLAN and updating the MAC address table to protect the service traffic, in some scenarios, the following problems exist: 1) In the L2VPN service, the PW member crosses the MPLS network. The Ethernet ring protection switching technology for VLAN services cannot be applied on the PW; 2) In the L2VPN service, some types of L2VPN services do not have a VLAN and a MAC address table.

Example 1

The method embodiment provided in Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or the like. 4 is a block diagram of a hardware structure of a terminal of a service processing method according to an embodiment of the present invention. As shown in FIG. 4, terminal 40 may include one or more (only one shown) processor 402 (processor 402 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), A memory 404 for storing data, and a transmission device 406 for communication functions. One of ordinary skill in the art will understand that the figure The structure shown in FIG. 4 is merely illustrative, and it does not limit the structure of the above electronic device. For example, terminal 40 may also include more or fewer components than shown in FIG. 4, or have a different configuration than that shown in FIG.

The memory 404 can be configured to: store a software program of the application software and a module, such as a program instruction/module corresponding to the business processing method in the embodiment of the present invention, and the processor 402 executes by executing the software program and the module stored in the memory 404. Various functional applications and data processing, that is, the above methods are implemented. Memory 404 can include high speed random access memory and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 404 can further include memory remotely located relative to processor 402, which can be connected to terminal 40 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Transmission device 406 is arranged to receive or transmit data via a network. The network specific example described above may include a wireless network provided by a communication provider of the terminal 40. In one example, transmission device 406 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 406 can be a Radio Frequency (RF) module for communicating with the Internet wirelessly.

In this embodiment, a service processing method running on the terminal is provided. FIG. 5 is a flowchart of a service processing method according to an embodiment of the present invention. As shown in FIG. 5, the process includes the following steps:

Step S502, adding an access circuit AC member or a pseudowire PW member established on each ring node port of the Ethernet ring network to the Layer 2 virtual private network L2VPN;

Step S504, in the case that a fault occurs on the ring node Ethernet ring network, determine the state of the AC member or PW member corresponding to each ring node port;

Step S506, determining, according to the determined status of the AC member or the PW member corresponding to each ring node port, a protection switching result for protecting the ring node Ethernet ring network;

Optionally, the protection switching result here is the result obtained by the protocol processing module, that is, blocking or opening. For example, if the Ethernet ring network is not faulty, the protocol processing module notifies the L2VPN that the protection switching result of the AC or PW member of the port where the RPL is located is blocked, and the protection switching result of the AC or PW member of the other port is turned on. Failure in the Ethernet ring network In this case, the protocol processing module notifies the L2VPN that the protection switching result of the AC or PW member connected to the faulty link is blocked, and the protection switching result of the AC or PW member of the other port is turned on. For example, as shown in Figure 8, the protection of the PW12 is performed. The result of the switch is open, and the protection switch result of AC14 is blocked.

Step S508, performing service traffic forwarding processing according to the determined ring node protection switching result.

In step S508, if the protection switching result is on, traffic forwarding can be performed. If the protection switching result is blocked, traffic forwarding cannot be performed.

Through the above steps, the AC member or the PW member established on each ring node of the Ethernet ring network is added to the L2VPN, and the protection switching result is determined according to the state of the AC member or the PW member corresponding to each ring node port, and the service traffic is forwarded. The Ethernet ring protection protocol can be applied to the L2VPN scenario, and the Ethernet ring protection switch can be effectively performed to protect the L2VPN service traffic.

Optionally, the execution body of the foregoing step may be a terminal, a ring node in an Ethernet ring network, or the like, but is not limited thereto.

Optionally, before step S502, the member type of each ring node port of the Ethernet ring network may be determined, where the member type includes an AC member or a PW member: the ring node port belongs to the L2VPN (local network) In the case of a ring node, an AC member is established; in the case where the ring node port spans the MPLS network, a PW member is established on the ring node port. Whether the ring node port belongs to the L2VP or the MPLS network can be determined according to the network configuration.

According to the foregoing technical solution of the embodiment of the present invention, each ring node port can be replaced with a corresponding member type according to the ring node port belonging to the local network or the MPLS network to determine the member type established by each ring node port. The protection switching is guaranteed to proceed smoothly.

Optionally, the step S504 can be implemented in multiple manners. For example, the status of the AC member or the PW member corresponding to each ring node port can be determined, and the status of the AC member or the PW member corresponding to each ring node port is determined.

For example, it may be determined that the AC member or the PW member corresponding to each ring node port has service traffic, and the AC member or PW member that does not have service traffic determines the AC. The status of the member or the PW member is normal. If the AC member or the PW member is faulty, the AC member or the PW member is faulty. If the fault occurs, the status of the AC member or PW member is abnormal. If no fault occurs, the status of the AC member or PW member is normal. Because the Ethernet ring network is used to protect the traffic in the VLAN, the status of the AC member or the PW member that does not pass the service traffic does not affect the transmission of the service traffic. Therefore, the AC member or PW corresponding to each ring node is determined. The status of the member is determined by the status of the AC member or the PW member corresponding to each ring node. The status of the fault is determined only for the AC member or the PW member that has the service traffic. The PW member considers that the member is in a normal state and can reduce the workload of determining the state of the AC member or PW member corresponding to each ring node port, thereby improving the operating efficiency of the system.

With the foregoing technical solution of the embodiment of the present invention, only the fault status of the AC member or the PW member that has the service traffic is judged, and the AC member or the PW member that does not have the service traffic considers that the member status is normal. The workload of the status of the AC member or PW member corresponding to the ring node port improves the operating efficiency of the system.

Optionally, after the step S506, the determined protection switching result may also be notified to other ring nodes in the Ethernet ring network except the ring node, and used by other ring nodes to set the state of the corresponding AC member or PW member. The "ring node" herein may refer to one or more ring nodes that are first perceived or first detected as a failure.

With the foregoing technical solution of the embodiment of the present invention, the determined protection switching result is notified to other ring nodes, and other ring nodes may set the state of the corresponding AC member or PW member according to the switching result, thereby improving the efficiency of setting the state of the AC member or the PW member. The reliability of the state setting of the AC member or PW member of the ring node in the Ethernet ring network is guaranteed.

Optionally, after the step S508, the state of the AC member or the PW member that is updated when the fault occurs may also be restored in the case that it is determined that the fault on the Ethernet ring network disappears.

With the above technical solution of the embodiment of the present invention, when the fault on the Ethernet ring network disappears, the state of the AC member or the PW member that is updated when the fault occurs is restored, and the status of the AC member or the PW member of the ring node is updated. Timeliness ensures the efficiency of business traffic forwarding.

Based on the above embodiments and optional implementation manners, in order to explain the entire process interaction of the solution, in this excellent In an embodiment, a service processing method is provided. The method can be run in an Ethernet ring protection device as shown in FIG. 6. The device includes: an L2VPN management module 62, an L2VPN status module 64, a status notification module 66, and Protocol processing module 68. The device will be described below.

The L2VPN management module 62 (which functions as the following adding module 112, processing module 118, third determining module 116, first establishing module 124, and second establishing module 126) is configured to: manage AC members and PW members. Add each ring node port on the Ethernet ring network to the L2VPN. If the ring node port is on the local network, the AC member is added to the L2VPN on the port. If the ring node port crosses the MPLS network, the PW member is established on the port. Join the L2VPN. In addition, the L2VPN management module 62 can also receive the protection switching result of the status notification module 66, and set the AC member or the PW member to be blocked or opened to implement correct service traffic forwarding.

The L2VPN state module 64 (acting as the first determining module 114 described below) is configured to: sense the state change of the AC member or the PW member, calculate the final state of the AC member or the PW member, and pass the final state to the state notification module 66. The L2VPN status module 64 can select whether to associate the member status when calculating the final status of the member. If the L2VPN member has both the service traffic and the protocol packet traffic, the member status is associated; if the L2VPN member only has the protocol packet traffic, the L2VPN member is not associated. Member status.

The status notification module 66 (acting as described below with the notification module 142) is configured to notify the protocol processing module 68 of the status in response to the status of the L2VPN status module 64. The status notification module 66 is further configured to: receive the protection switching result of the protocol processing module 68, and notify the L2VPN management module 62 of the protection switching result.

The protocol processing module 68 (acting as the second determining module 116 described below) is configured to: run the ERPS protocol, receive status information of the status notification module 66, calculate a protection switching result according to the status information, and transmit the protection switching result to the status notification module. 66.

In this embodiment, the associated or unassociated member status can be selected. The associated member status refers to the current actual status of the AC or PW member, and the protocol processing module is notified to calculate the protection switching result. The status of the unassociated member is that the AC or PW member status is normal regardless of whether the current or actual status of the AC or PW member is normal or faulty. The normal state is notified to the protocol processing module to calculate the protection switching result. The purpose of this operation is that the state of an AC member or PW member that does not have traffic flows does not affect the transmission of service traffic. Therefore, the AC that has service traffic exists. The fault status of the member or the PW member is judged by the state, and the AC member or the PW member that does not have the service traffic considers that the member status is normal, and the workload for determining the state of the AC member or the PW member corresponding to each ring node port can be reduced. Improve the efficiency of the system.

The service processing method in the preferred embodiment will be described below in conjunction with the above apparatus and corresponding modules. FIG. 7 is a flowchart of a service processing method according to a preferred embodiment of the present invention. As shown in FIG. 7, the flow includes the following steps:

Step S702, adding each ring node port on the Ethernet ring network to the L2VPN.

Before adding each ring node port on the Ethernet ring network to the L2VPN, you need to configure the Ethernet ring network: configure the primary node and the transit node of the Ethernet ring protection, configure the primary port and the secondary port of the primary node, and The Ethernet ring protection protocol is running on the port.

All the ring node ports are added to the L2VPN service. If the ring node port is in the local network, the AC member is added to the L2VPN (instance) on the port. If the ring node port crosses the MPLS network, the port is on the port. Establish a PW member to join the L2VPN (instance).

In step S704, the AC member or the PW member detects that the Ethernet ring network is faulty, and the L2VPN calculates the final state of the AC member and the PW member according to the fault information.

When the Ethernet ring is in the normal state, the AC member or the PW member of the primary port is in the open state, and the AC member or PW member on the primary port is in the blocked state. The AC member or PW member on the ring protection link blocks traffic.

When the ring link fault is detected by the AC member or the PW member on the Ethernet ring network, the L2VPN state module 64 calculates the final state of the AC member or the PW member according to the fault state information. The L2VPN status module 64 can select whether to associate the member status when calculating the final status of the member. If the L2VPN member has both the service traffic and the protocol packet traffic, the member status is associated; if the L2VPN member only has the protocol packet traffic, the L2VPN member is not associated. The member status, even if a fault occurs on the member, the result of the calculation is still normal.

In this embodiment, the associated or unassociated member status can be selected. The associated member status refers to the current actual status of the AC or PW member, and the protocol processing module is notified to calculate the protection cut. Change the result. The status of the unassociated member is that the AC or PW member status is normal regardless of whether the current or actual status of the AC or PW member is normal or faulty. The normal state is notified to the protocol processing module to calculate the protection switching result. The purpose of this operation is that the state of the AC member or the PW member that does not have the service traffic does not affect the transmission of the service traffic. Therefore, the status of the fault condition of the AC member or the PW member that has the service traffic is judged, but does not exist. The AC member or PW member of the service traffic considers that the member is in the normal state and can reduce the workload of determining the status of the AC member or PW member corresponding to each ring node port, and improve the operating efficiency of the system.

In step S706, the final state information of the AC member and the PW member is notified to the protocol processing module 68.

The final state of the AC member and the PW member calculated by the L2VPN status module 64 is notified to the protocol processing module 68 via the status notification module 66, where the protocol is the ERPS protocol.

Step S708, calculating a protection switching result according to the received status information.

After receiving the fault information, the protocol processing module 68 performs protocol state calculation, and notifies the protection switching result to the L2VPN management module 62 where the current link is located via the status notification module 66.

Step S7010: Set the AC member or the PW member to a blocked or open state according to the protection switching result.

Optionally, if there is no fault on the ring link, set the AC or PW of the port connected to the RPL link to the blocked state, and set the other port to the open state.

In the case of a ring link failure, set the AC or PW of the port to which the failed link is connected to block and set the other port to the open state.

The L2VPN management module 62 sets the AC member or the PW member to a blocked or open state according to the received protection switching result, so as to implement correct service traffic forwarding.

The protocol processing module 68 can also send a fault message to notify the ring network master node. After receiving the fault message, the ring network master node performs protocol state calculation, and notifies the protection switching result to the L2VPN service on the ring network master node, and the L2VPN opens the ring network master node. A blocked AC member or PW member.

When the AC member or the PW member of the Ethernet ring network detects that the ring link failure disappears, the L2VPN management module 62 notifies the protocol processing module 68 of the failure disappear message.

After receiving the failure disappearing information, the protocol processing module 68 performs protocol state calculation to notify the L2VPN. The management module 62 restores the current AC member or PW member status.

The L2VPN management module 62 may also send a fault message to notify the ring network master node, and after receiving the fault disappearing message, the ring network master node performs protocol state calculation, and notifies the L2VPN on the primary node of the ring network to re-block the slave port associated with the master node on the ring network. AC member or PW member.

In the preferred embodiment, there is no limitation on the type of L2VPN service on the Ethernet ring network, which may be point-to-point, point-to-multipoint, local exchange service, and the like. There is no restriction on the L2VPN service member combination on the Ethernet ring network. All of them can be PW members, or all AC members, or any combination of PW members and AC members.

The following takes the Ethernet ring network composed of four nodes as an example to describe the service processing method of the preferred embodiment.

As shown in Figure 8, the PE1 device is configured as the master node, and the PE2, PE3, and PE4 devices are the transit nodes. Configure the primary and secondary ports of the primary node. The Ethernet ring protection switching protocol is run on the PE1, PE2, PE3, and PE4 devices.

Establish L2VPN instance 1 on PE1, L2VPN instance 2 on PE2, L2VPN instance 3 on PE3, and L2VPN instance 4 on PE4. A PW connection is established between PE1 and PE2 and between PE3 and PE4 across the MPLS network. Example 1 consists of PW12 members and AC14 members, Example 2 consists of PW21 members and AC23 members, Example 3 consists of PW34 members and AC32 members, and Example 4 consists of PW43 members and AC41 members.

When the Ethernet ring link is normal, the PW12 is in the open state and the AC 14 is in the blocked state. The PW12 member can transmit service traffic and the AC14 member blocks service traffic.

As shown in Figure 9, when a link fault is detected between the PE3 and PE4 devices on the Ethernet ring network, the L2VPN calculates the final status of the PW34 and PW43 members, and notifies the Ethernet ring protection protocol of the final fault status information. The L2VPN can be associated with the member status when calculating the final state of the member. If the L2VPN member has both the service traffic and the protocol packet traffic, the L2VPN member is associated with the member state. If the L2VPN member has only protocol packet traffic, the member state is not associated. Even if a fault occurs on the member, the member is still in a normal state. After the PE3 node in Figure 9 senses/detects the fault, the ERPS protocol will notify the fault to PE2, PE1, and PE4. At the same time, after the PE4 node senses/detects the fault, the ERPS protocol will notify the fault to PE1 and PE2. PE3. As shown in Figure 10, the service traffic enters from the PW12 of the PE1 device and passes through the PE2 device. The device comes out. In this case, there is no service traffic on the PW34 and PW43 members. Even if the PW34 and PW43 members have link faults, the normal service traffic forwarding will not be affected. In this case, the member status is not associated, that is, the PW34 and PW43 members are considered. The final state is normal.

After receiving the fault information, the Ethernet ring protection device performs protocol state calculation, and notifies the L2VPN instance 3 and the L2VPN instance 4 of the protection switching result. The L2VPN instance 3 blocks the PW34 member, and the L2VPN instance 4 blocks the PW43 member.

The "Ethernet Ring Protection Device" is placed on each ring node. The Ethernet ring protection device sends a fault message to notify the PE1 of the primary node of the ring network. After receiving the fault message, PE1 notifies L2VPN instance 1 on PE1, and L2VPN instance 1 opens the blocked PW12 member.

When the link fault between the PE3 and PE4 devices on the Ethernet ring network disappears, the L2VPN notifies the Ethernet ring protection protocol of the failure disappear message.

After receiving the fault disappearing information, the Ethernet ring protection device performs the protocol state calculation to notify the L2VPN instance 3 to restore the blocked PW34 member, and the L2VPN instance 4 restores the blocked PW43 member.

The Ethernet ring protection device sends a fault message to notify the PE1 device of the primary node of the ring network. After receiving the message of the failure disappearance, the primary node PE1 of the ring network performs protocol status calculation to notify L2VPN instance 1 to re-block the AC 14 member.

In the above-mentioned technical solution of the preferred embodiment, the AC member and the PW member of the L2VPN are used as the basic state unit, and the Ethernet ring network protection switching can be effectively performed in the environment spanning the MPLS network to protect the L2VPN service traffic. On the one hand, the ring network node is not required to be added to the VLAN service, and the protection switching is performed according to the state of the AC member and the PW member. On the other hand, for the scenario where the ring network node spans the MPLS network, the ERPS state can be correctly calculated, and the service traffic on the Ethernet ring network is effectively protected.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM, including a number of instructions to make a terminal device (can be a mobile phone, a computer, The server, or network device, etc.) performs the methods described in various embodiments of the present invention.

Example 2

In this embodiment, a service processing device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 11 is a structural block diagram of a service processing apparatus according to an embodiment of the present invention. As shown in FIG. 11, the apparatus includes: a joining module 112, a first determining module 114, a second determining module 116, and a processing module 118. The device will be described below.

The adding module 112 is configured to: join the access circuit AC member or the pseudowire PW member established on each ring node port of the Ethernet ring network into the layer 2 virtual private network L2VPN; the first determining module 114, and the joining module 112 The connection is set to: determine the state of the AC member or the PW member corresponding to each ring node port in the case of a failure on the Ethernet ring network; the second determining module 116 is connected to the first determining module 114, and is configured to: The status of the AC member or the PW member corresponding to each ring node is determined, and the protection switching result for protecting the Ethernet ring network is determined; the processing module 118 is connected to the second determining module 116, and is configured to: switch according to the determined protection. As a result, traffic forwarding processing is performed.

FIG. 12 is a block diagram showing the structure of a service processing apparatus according to an embodiment of the present invention. As shown in FIG. 12, the apparatus includes, in addition to all the modules shown in FIG. 11, a third determining module 122 and a first establishing module 124. The second establishing module 126. The device will be described below.

The third determining module 122 is configured to: determine a member type of each ring node port of the Ethernet ring network, wherein the member type includes: an AC member or a PW member; the first establishing module 124, and the third determining module 122 The connection is set to: when the ring node port belongs to the L2VPN, the AC member is established on the ring node port; the second establishing module 126 is connected to the third determining module 122, and is configured to: span the multi-protocol label on the ring node port. In the case of an MPLS network exchange, a PW member is established on the ring node port.

FIG. 13 is a structural block diagram of a first determining module 114 of a service processing apparatus according to an embodiment of the present invention. As shown in FIG. 13, the first determining module 114 includes: a first determining unit 132, and a first determining. The unit 134, the second determining unit 136, the second determining unit 138, and the third determining unit 1310. The first determining module 114 will be described below.

The first determining unit 132 is configured to: determine whether the AC member or the PW member corresponding to each ring node port has service traffic; the first determining unit 134 is connected to the first determining unit 132, and is configured to: in the first determining unit If the result of the determination is that the AC member or the PW member does not have the service traffic, the status of the AC member or the PW member is determined to be normal. The second determining unit 136 is connected to the first determining unit 132 and is configured to: If the result of the unit 132 is that the AC member or the PW member has the service traffic, the AC member or the PW member is determined to be faulty. The second determining unit 138 is connected to the second determining unit 136 and is configured to: If the result of the determination of the unit 136 is that the AC member or the PW member is faulty, the status of the AC member or the PW member is abnormal. The third determining unit 1310 is connected to the second determining unit 136, and is configured to: in the second determining unit. If the result of the judgment of 136 is that the AC member or the PW member has not failed, it is determined that the state of the AC member or the PW member is normal.

FIG. 14 is a structural block diagram 3 of a service processing apparatus according to an embodiment of the present invention. As shown in FIG. 14, the apparatus includes: a notification module 142 in addition to all the modules shown in FIG. The device will be described below.

The notification module 142 is configured to: notify the other ring nodes in the Ethernet ring network other than the ring node, and set the state of the corresponding AC member or PW member to the other ring node.

FIG. 15 is a structural block diagram of a service processing apparatus according to an embodiment of the present invention. As shown in FIG. 15, the apparatus includes: a recovery module 152 in addition to all the modules shown in FIG. The device will be described below.

The recovery module 152 is configured to: restore the state of the AC member or PW member that was updated when the fault occurred, in the case that it is determined that the fault on the Ethernet ring network has disappeared.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

Example 3

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the above The storage medium can be configured to store program code for performing the following steps:

S1, the access circuit AC member or the pseudowire PW member established on each ring node port of the Ethernet ring network is added to the Layer 2 virtual private network L2VPN;

S2, in the case that a fault occurs on the Ethernet ring network, determine the state of the AC member or the PW member corresponding to each ring node port;

S3. Determine, according to the determined status of the AC member or the PW member corresponding to each ring node, the protection switching result used to protect the Ethernet ring network.

S4: Perform service traffic forwarding processing according to the determined protection switching result.

Optionally, the storage medium is further arranged to store program code for performing the following steps:

Before adding an AC member or PW member established on each ring node port of the Ethernet ring network to the L2VPN, it also includes:

S1. Determine a member type of each ring node port of the Ethernet ring network, where the member type includes: an AC member or a PW member.

S2. When the ring node port belongs to the L2VPN, the AC member is established on the ring node port.

S3. In the case that the ring node port crosses the multi-protocol label switching MPLS network, the PW member is established on the ring node port.

In the case of a fault on the Ethernet ring network, the status of the AC member or PW member corresponding to each ring node is determined to include:

S1. If the status of the AC member or the PW member does not exist, the status of the AC member or the PW member is normal.

S2: If the AC member or the PW member has service traffic, the AC member or the PW member is faulty.

S3: If the result of the failure is that the AC member or the PW member is faulty, the status of the AC member or the PW member is abnormal.

S4. Determine the AC if the result of the determination is that the AC member or the PW member has not failed. The status of the member or PW member is normal.

Optionally, the storage medium is further configured to store program code for performing the following steps: determining a protection switching result for protecting the Ethernet ring network according to the determined status of the AC member or the PW member corresponding to each ring node port After that, the method further includes: notifying the ringback node in the Ethernet ring network other than the ring node, and setting the state of the corresponding AC member or the PW member in the other ring node.

Optionally, the storage medium is further configured to store program code for performing the following steps: after performing the service traffic forwarding process according to the determined protection switching result, further comprising: after determining that the fault on the Ethernet ring network disappears, Restore the status of an AC member or PW member that was updated when a failure occurred.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, adding an access circuit AC member or a pseudowire PW member established on each ring node port of the Ethernet ring network to the second layer virtual In the private network L2VPN, in the case of a failure on the Ethernet ring network, determine the status of the AC member or PW member corresponding to each ring node port; determine the status of the AC member or PW member corresponding to each ring node port. The protection switching result used to protect the Ethernet ring network; and the service traffic forwarding process is performed according to the determined protection switching result.

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, before the AC member or the PW member established on each ring node port of the Ethernet ring network is added to the L2VPN, the method further includes: Determine the member type of each ring node port on the Ethernet ring network. The member type includes: AC member or PW member. In the case that the ring node port belongs to L2VPN, the AC member is established on the ring node port. In the case where a port spans a multi-protocol label switching MPLS network, a PW member is established on the ring node port.

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, in the case that a fault occurs on the Ethernet ring network, determining the status of the AC member or the PW member corresponding to each ring node port includes: If the AC member or the PW member of the ring member does not have any service traffic, it is determined that the AC member or the PW member does not have service traffic. The status of the AC member or the PW member is normal. If the AC member or the PW member is faulty, the AC member or the PW member is faulty. The status of the AC member or the PW member is abnormal. If the AC member or the PW member is faulty, the status of the AC member or PW member is normal.

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, determining, according to the determined status of the AC member or the PW member corresponding to each ring node port, for protecting the Ethernet ring network. After the protection of the handover result, the method further includes: notifying the ringback node of the Ethernet ring network other than the ring node, and setting the state of the corresponding AC member or PW member of the other ring node.

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, after performing the service traffic forwarding process according to the determined protection switching result, further comprising: determining that the fault on the Ethernet ring network disappears. In this case, the status of the AC member or PW member that was updated at the time of the failure is restored.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

The embodiment of the invention further discloses a computer program, comprising program instructions, when the program instruction is executed by the terminal, so that the terminal can perform any of the above methods for detecting wireless network access security.

The embodiment of the invention also discloses a carrier carrying the computer program.

It should be understood by those skilled in the art that the present invention may be modified or equivalently substituted without departing from the spirit and scope of the invention.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Some or all components can be implemented Software executed by a processor, such as a digital signal processor or microprocessor, is either implemented as hardware or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

Industrial applicability

Through the above technical solution, the AC member or the PW member established on each ring node of the Ethernet ring network is added to the L2VPN, and the protection switching result is determined according to the state of the AC member or the PW member corresponding to each ring node port, and the service traffic is forwarded. The Ethernet ring protection protocol can be applied to the L2VPN scenario to effectively perform Ethernet ring protection switching, because the state of the AC member or the PW member established on the ring node is used for protection switching and service traffic forwarding. The effect of protecting L2VPN service traffic. Therefore, the application has strong industrial applicability.

Claims

A business processing method comprising:

Adding an access circuit (AC) member or a pseudowire (PW) member established on each ring node port of the Ethernet ring network to (S502) a Layer 2 virtual private network (L2VPN);

In a case where a failure occurs on the Ethernet ring network, determining (S504) a state of an AC member or a PW member corresponding to each ring node port;

Determining (S506) a protection switching result for protecting the Ethernet ring network according to the determined status of the AC member or the PW member corresponding to each ring node port;

The service traffic forwarding process is performed (S508) according to the determined protection switching result.
The service processing method according to claim 1, wherein the method further comprises the step of adding the AC member or the PW member established on each ring node port of the Ethernet ring network to the L2VPN. include:

Determining a member type of each ring node port of the Ethernet ring network, where the member type includes: an AC member or a PW member;

In the case that a ring node port belongs to the L2VPN, an AC member is established on the ring node port;

In the case where a ring node port spans a multi-protocol label switching MPLS network, a PW member is established on the ring node port.
The service processing method according to claim 1, wherein, in the case that a failure occurs on the Ethernet ring network, the step of determining the status of the AC member or the PW member corresponding to each ring node port includes:

Determining whether the AC member or the PW member corresponding to each ring node port has service traffic;

If the result of the determination is that the AC member or the PW member does not have service traffic, determine that the status of the AC member or the PW member is normal.

If the result of the determination is that the AC member or the PW member has the service traffic, determine whether the AC member or the PW member is faulty; if the result of the determination is that the AC member or the PW member is faulty, determine the The status of the AC member or the PW member is abnormal. If the result is that the AC member or the PW member is not faulty, the status of the AC member or PW member is normal.
A business processing method according to claim 1, wherein said each of said After the step of determining the protection switching result of the Ethernet ring network is determined by the state of the AC member or the PW member corresponding to the ring node port, the method further includes:

Notifying the ringback network of the ring ring network other than the ring node that first perceived the fault, and setting the state of the corresponding AC member or PW member for the other ring node.
The service processing method according to any one of claims 1 to 4, wherein after the step of performing a service traffic forwarding process according to the determined protection switching result, the method further comprises:

In the case that it is determined that the failure of the Ethernet ring network has disappeared, the state of the AC member or PW member that has been updated at the time of the failure is restored.
The service processing method according to claim 1, wherein the step of determining a protection switching result for protecting the Ethernet ring network according to the determined status of an AC member or a PW member corresponding to each ring node port includes: :

If the Ethernet ring network is faulty, the protection switching result of the AC or PW member of the port where the RPL is located is blocked. The protection switching result of the AC or PW member of the other port is turned on. If the Ethernet ring network fails, The protection switching result of the AC or PW member connected to the faulty link is blocked. The protection switching result of the AC or PW member of other ports is open.
The service processing method according to claim 1, wherein the step of performing service traffic forwarding processing according to the determined protection switching result comprises:

If the protection switching result is turned on, the service traffic is forwarded; if the protection switching result is blocked, the service traffic is not forwarded.
A service processing apparatus includes: a joining module (112), a first determining module (114), a second determining module (116), and a processing module (118), wherein

The joining module (112) is configured to: join an access circuit AC member or a pseudowire PW member established on each ring node port of the Ethernet ring network into the layer 2 virtual private network L2VPN;

The first determining module (114) is configured to: determine a state of an AC member or a PW member corresponding to each ring node port if a fault occurs on the Ethernet ring network;

The second determining module (116) is configured to: determine, according to the determined status of the AC member or the PW member corresponding to each ring node port, a protection switching result for protecting the Ethernet ring network;

The processing module (118) is configured to: perform a service according to the determined protection switching result Traffic forwarding processing.
The service processing apparatus according to claim 8, further comprising: a third determining module (122), a first establishing module (124), and a second establishing module (126), wherein

The third determining module (122) is configured to: determine a member type of each ring node port establishing member on the Ethernet ring network, where the member type includes: an AC member or a PW member;

The first establishing module (124) is configured to: establish an AC member on the ring node port if the ring node port belongs to the L2VPN;

The second establishing module (126) is configured to establish a PW member on the ring node port if the ring node port spans the multi-protocol label switching MPLS network.
The service processing apparatus according to claim 8, wherein the first determining module (114) comprises: a first determining unit (132), a first determining unit (134), a second determining unit (136), and a second a determining unit (138) and a third determining unit (1310), wherein

The first determining unit (132) is configured to: determine whether the AC member or the PW member corresponding to each ring node port has service traffic;

The first determining unit (134) is configured to: determine, in the case that the first judging unit (132) determines that the AC member or the PW member does not have service traffic, determine the AC member or the PW member. The state is normal;

The second determining unit (136) is configured to determine whether the AC member or the PW member is generated if the result of the first determining unit (132) is that the AC member or the PW member has service traffic. malfunction;

The second determining unit (138) is configured to determine that the status of the AC member or PW member is abnormal if the result of the second determining unit (136) is that the AC member or the PW member is faulty. ;

The third determining unit (1310) is configured to determine the status of the AC member or the PW member if the result of the second determining unit (136) is that the AC member or the PW member has not failed. normal.
A service processing apparatus according to claim 8, further comprising a notification module (142), wherein

The notification module (142) is configured to: notify the protection ring switching result to other ring nodes in the Ethernet ring network except the ring node that first perceives the fault, and use the other ring node to set the pair The status of the AC member or PW member.
Apparatus according to any one of claims 8 to 11, further comprising a recovery module (152), wherein

The recovery module (152) is configured to recover the state of the AC member or PW member that was updated when the failure occurred, in the case that it is determined that the failure on the Ethernet ring network has disappeared.
The service processing apparatus according to claim 8, wherein the second determining module (116) is configured to determine, according to the determined status of the AC member or the PW member corresponding to each ring node port, for protection according to the following manner. The protection ring switching result of the Ethernet ring network:

If the Ethernet ring network is faulty, the protection switching result of the AC or PW member of the port where the RPL is located is blocked. The protection switching result of the AC or PW member of the other port is turned on. If the Ethernet ring network fails, The protection switching result of the AC or PW member connected to the faulty link is blocked. The protection switching result of the AC or PW member of other ports is open.
The service processing apparatus according to claim 8, wherein the processing module (118) is configured to perform a traffic forwarding process according to the determined protection switching result according to the following manner:

If the protection switching result is turned on, the service traffic is forwarded; if the protection switching result is blocked, the service traffic is not forwarded.