TWI554059B - Using a distributed network of large number of nodes in the MPLS network architecture - Google Patents

Description

MPLS network architecture using distributed heterogeneous node mechanism

The invention belongs to the technical field of network architecture, in particular to a MPLS (Multi-Protocol Label Switching) network architecture adopting a distributed multi-node mechanism to borrow from the front of the terminal server. The added plurality of switches request the end nodes of the connection and perform network tasks to reduce the workload of the terminal router.

As the application of the Internet has expanded from military and academic to the general enterprise and consumer market, the Asynchronous Transfer Mode (ATM) technology with high speed and simple operation has become a network architecture widely adopted in the 1990s. Today, when IP-Based network applications are more and more and the data transmission volume is getting larger and larger, ATM transmission efficiency has become insufficient, and in consideration of the fact that its expansion cost is expensive and management is difficult, new A generation of MPLS technology has been proposed to become the widely adopted network architecture.

Please refer to FIG. 1 , which is a known MPLS network architecture. As shown in the figure, the MPLS architecture 1 is provided with a plurality of end nodes 10 , a plurality of first-order routers 11 , a plurality of second-order routers 12 , and a plurality of transmission chains. The path 13, the terminal router 14 and a terminal server 15 are interleaved to form a backbone network of the MPLS architecture 1, and the backbone network can be divided into a use end and a management end, that is, the end The node 10 is connected to the first-order routers 11 and then connected to the second-order routers 12 to form a user terminal. The terminal router 14 can be a Cisco 7609 and is connected to the terminal server 15 and the first-order router 11 by telecommunications. The second-order routers 12 are connected to form the management terminal, and the second-order routers 12, which are placed at the use end, are electrically connected to the second-order router 12 placed on the management terminal through the transmission links 13. The MPLS architecture 1 processes data packets through the switching mode (Tag Switching) and simultaneously completes the Layer. 2 and Layer 3's functions, so that IP transmission requirements are no longer limited by ATM's environmental factors and greatly improve network transmission efficiency. However, when such an architecture performs IP connection, the terminal node 10 performs a network ping (Ping), such as address query, connection request, and execution connection task, through the terminal server 14 of the single station. After the completion of the IP connection, in the current situation where the network application is becoming more and more large, the amount of tasks that the terminal server 14 needs to perform will exceed the load, and the network measurement efficiency is low, the task is delayed, or even the connection error occurs. When the problem occurs, the quality of the network is degraded.

It is felt that how to improve the terminal server 15 as far as the terminal is routed The network architecture of the single source (Multi Receiver) that performs network measurement on the end nodes 10 to spread the load of the terminal router 14 to improve the network throughput efficiency and the network. The accuracy of the connection is the subject of the invention.

In view of the problems of the prior art, the object of the present invention is to provide an MPLS network architecture using a distributed multi-node mechanism for distributed over a switch supporting SNMP (Simple Network Management Protocol). The network test architecture of multi-source and multi-reception is formed at the front end of the terminal server, so that the connection efficiency and accuracy are improved, and the problem that the terminal router cannot load a large number of connection requirements is solved.

According to the purpose of the present invention, the MPLS network architecture adopting a distributed multi-node mechanism mainly comprises a plurality of end nodes, a plurality of first-order routers, a plurality of second-order routers, a plurality of transmission links, a terminal router, and at least one The terminal server is configured to sequentially connect the first-order routers and the second-order routers to the terminal server through the transmission links, and the terminal server is characterized in that: The MPLS network architecture of the mechanism is provided with a plurality of switches, the switch is connected to the terminal router and the terminal server, and the terminal server stores a first list for recording the end nodes. Multiple configuration data such as IP (Internet Protocol), VRF (Virtual Routing and Forwarding), and Port (Port), and the terminal server receives multiple task instructions. The number of the switches is divided into the task instructions to form a link instruction to the switch, and according to the first list pass The configuration information corresponding to the link request is sent to the switch, so that the switch requests the corresponding end node by using the configuration data according to the link instruction.

And the switch transmits a link request to the end node, and receives the After the end node feedbacks the confirmation signal and successfully establishes the link, it returns a confirmation data to the terminal server. The switch transmits the connection request to the end node, and returns an error message to the terminal server when the signal fed back by the end node is not received within a preset time. The terminal server records the confirmation data and the error data, and analyzes and forms at least one result report.

Wherein the end nodes, the first-order routers, and the second-order routers a regional group configuration, and the terminal server records and analyzes the confirmation data and the error data to form at least one result report, and when the end nodes in which the error occurs are concentrated in the same group, the The terminal server generates an exception notification to inform the first-order router and the second-order router that an abnormality may occur. The terminal server transmits the exception notification via email, SMS (Short Message Service) message or web message.

In summary, the present invention utilizes the switches to obtain the end nodes in advance. The network data is used by the terminal server to directly send the network data to use the corresponding network data to perform network communication, and establish a connection with the corresponding end node, so that multiple switches are established through the switches. The source network-based architecture can disperse the workload of the terminal router and avoid problems such as work delays and work errors. Furthermore, the switches feedback the task execution result to the terminal server, so that the terminal server can analyze, according to the first list, the region group of the end node where the abnormality occurs, and further obtain It is known that the path of the abnormality is located between the end node and the first-order router, which facilitates the quick and accurate maintenance of the manager and is beneficial to improving economic efficiency.

Conventional technology

1‧‧‧MPLS architecture

10‧‧‧End node

11‧‧‧ first-order router

12‧‧‧second-order router

13‧‧‧Transmission link

14‧‧‧ Terminal Router

15‧‧‧ Terminal Server

this invention

2‧‧‧MPLS network architecture

20‧‧‧End node

21‧‧‧ first-order router

22‧‧‧second-order router

23‧‧‧Transmission link

24‧‧‧ Terminal Router

25‧‧‧Switch

26‧‧‧ Terminal Server

260‧‧‧ first list

S1~S9‧‧‧Steps

Figure 1 is a schematic diagram of a conventional network architecture.

Figure 2 is a schematic illustration of a preferred embodiment of the invention.

Figure 3 is a flow chart of a preferred embodiment of the present invention.

Figure 4 is a second flow chart of a preferred embodiment of the present invention.

In order for your review board to have a clear understanding of the contents of the present invention, please refer to the following description for matching drawings.

Please refer to FIGS. 2 and 3, which are respectively a schematic view and a flow chart of a preferred embodiment of the present invention. As shown in the figure, the MPLS network architecture 2 adopting a distributed multi-node mechanism is provided with a plurality of end nodes 20, a plurality of first-order routers 21, a plurality of second-order routers 22, a plurality of transmission links 23, and a The terminal router 24, the plurality of switches 25, and a terminal server 26, the terminal nodes 20 sequentially connect the first-order routers 21 and the second-order routers 22 to form a use end. The switch 25 can be a Cisco 3560 supporting the SNMP protocol and the telecommunications connection between the terminal router 24 and the terminal server 26, and the terminal router 24 can be a Cisco 7609 and a telecommunications connection to the first-order router 21. The second-order router 22 forms a management terminal. And the second-order routers 22 disposed at the use end are connected to the second-order router 22 of the management terminal through the transmission links 23 to form a backbone network of the MPLS network architecture 2, and the MPLS network is formed. The operation of architecture 2 can include the following steps.

First, in the network construction, in step S1, a plurality of configuration data such as IP, VRF and connection ports of each end node 20 are set in advance by the terminal server 26 to form a first list 260 of the memory. The device data of the switches 25 are recorded to cause the terminal server 26 to know the number of such switches 25 that are added to its back end.

When the network is enabled, in step S2, the terminal server 26 will receive the plurality of task commands, and divide the task commands into the switches 25 according to the set number of the switches 25, that is, form a chain. The switch is commanded to the corresponding switch 25.

At the same time, in step S3, the terminal server 26 transmits the configuration information corresponding to the link request to the switch 25 according to the first list 260.

In step S4, each of the switches 25 completes the connection according to the link instruction and requests the corresponding end node 20 by using the configuration data. It can be seen that the action of the MPLS network architecture 2 actually performing network metering will be performed by the switches 25 to allow the terminal router. 24 only provides a network path for the data packet to pass, so that the workload of the terminal router 24 can be greatly reduced and the network throughput rate can be improved.

In this embodiment, due to the end nodes 20 of the use end and the management The terminal server 26 is connected to the terminal router 24, the first-order routers 21, and the second-order routers 22, respectively. Therefore, the switches 25 can transmit the test packets through the terminal router 24, The response message fed back by the end nodes 20 can also be received through the terminal router 24. Therefore, as shown in FIG. 4, in step S4', when the switch 25 receives the link command, the switch 25 transmits a link request to the corresponding end node 20 for network measurement. Pass and request a link.

Next, in step S5, the switch 25 transmits the link request to the end node. After 20, it is determined whether the signal fed back by the end node 20 is received within a preset time period. If yes, go to step S6. On the other hand, when the switch 25 does not receive the signal fed back by the end node 20 within the preset time, that is, the request may be overdue and an error may occur in the device or the link is abnormal, and the process proceeds to step S7.

In step S6, the switch 25 analyzes the feedback of the end node 20. Is the number a confirmation signal? If yes, step S60: the link is successfully established to complete the network connection, and at the same time, the switch 25 reports a confirmation data to the terminal server 26. Otherwise, step S7.

In step S7, the switch 25 reports an error message to the terminal servo. Device 26.

Going to step S8, the terminal server 26 records the confirmed materials and the errors. The error data is such that after the task instructions are all executed or after a deadline is reached, the data is analyzed to form at least one result report.

The end nodes 20, the first-order routers 21, and the second-order routers 22 The regional group configuration is configured to enable the terminal server 26 to further analyze the result report in step S9, so that when the end nodes 20 that are aware of the error are concentrated in the same group, the terminal server 26 generates a The abnormality notification notifies the first-order router 21, the second-order router 22, the link between the end node 20 and the first-order router 21, or the first-order router 21 and the second-order router 22, which may be abnormal in the user terminal. The exact location of the link to enhance the manager Maintenance efficiency. Incidentally, the terminal server 26 transmits the abnormality notification via email, SMS newsletter or web newsletter.

The above description is only illustrative of preferred embodiments and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

2‧‧‧MPLS network architecture

20‧‧‧End node

21‧‧‧ first-order router

22‧‧‧second-order router

23‧‧‧Transmission link

24‧‧‧ Terminal Router

25‧‧‧Switch

26‧‧‧ Terminal Server

260‧‧‧ first list

Claims (5)

A multi-protocol label switching transmission (MPLS) network architecture adopting a distributed multi-node mechanism, mainly consisting of a plurality of end nodes, a plurality of first-order routers, a plurality of second-order routers, a plurality of transmission links, and a terminal router And a terminal server, wherein the terminal nodes are sequentially connected to the first-order routers and the second-order routers, and then the terminal routers are connected to the terminal server through the transmission links, and the terminal server is characterized in that: The MPLS network architecture of the distributed multi-node mechanism is provided with a plurality of switches, the switches are connected to the terminal router and the terminal server, and the terminal server has a first list of memory. Recording a plurality of configuration data such as IP, virtual routing and transmission (VRF) and connection ports of the end nodes, and when the terminal server receives a plurality of task instructions, the number of the switches is equally divided according to the number of the switches. The task instruction forms a link instruction to the corresponding switch, and at the same time, transmits the configuration request corresponding to the link request according to the first list And the switch is configured to use the configuration data to request to link the corresponding end node according to the link instruction, wherein the switch transmits a connection request to the end node, and receives confirmation of the end node feedback After the signal is successfully established, a confirmation data is returned to the terminal server. The MPLS network architecture adopting a distributed multi-node mechanism according to claim 1, wherein the switch transmits the connection request to the end node, and the end is not received within a preset time. When the node feeds back the signal, it returns an error message to the terminal server. For example, the MPLS network architecture adopting the distributed metering and mass node mechanism described in claim 2, wherein the terminal server records the confirmation data and the error data, and analyzes and forms at least one result report. The MPLS network architecture adopting a distributed multi-node mechanism, as described in claim 2, wherein the end nodes, the first-order routers, and the second-order routers are configured in a regional group, and the The terminal server records and analyzes the confirmed information and the like Forming at least one result report by the error data, and when the end nodes in which the error occurs are concentrated in the same group, the terminal server generates an abnormality notification to notify the first-order router that the abnormality may occur and the second-order router. As described in claim 4, the MPLS network architecture adopts a distributed multi-node mechanism, wherein the terminal server transmits the abnormality notification through an email, an SMS message or a network message.