WO2018001225A1 - Method, device and system for monitoring far-end net element - Google Patents

Abstract

Provided in the embodiments of the present disclosure are a method, a device and a system for monitoring a far-end net element. The method comprises: using a data communication network (DCN) monitoring channel to send a normal private message so as to acquire the description information of a far-end net element; and sending, when it is necessary to control the far-end net element, a private configuration message so as to modify the description information of the far-end net element. The technique of maintaining a far-end net element provided in the embodiments of the present disclosure multiplexes the DCN channel between net elements, uses private messages to transfer query and configuration information, and can accomplish fault location and recovery of a far-end net element as long as the physical channel between net elements has no fault.

Description

Method, device and system for monitoring remote network element Technical field

The present disclosure relates to the field of data communication technologies and transmission technologies, and a method, apparatus, and system for monitoring remote network elements.

Background technique

The Packet Optical Transport Network (POTN) is a transport network that deeply integrates the Packet Transport Network (PTN) and Optical Transport Network (OTN) technologies. As the access/aggregation network based on the MPLS-TP (Multi-Protocol Label Switching-Transport Profile) technology has more and more bandwidth requirements, operators begin to increase the number of deployed PTN devices. Dense Wavelength Division Multiplexing (DWDM) interface provides high-capacity and long-distance service transmission functions, or directly deploys POTN devices in new aggregation and core layers to meet both large-capacity and flexible services. demand.

As the scale of deployment of packet optical transport networks continues to increase, more and more OTN devices and POTN devices are required to be maintained through the Data Communication Network (DCN). Generally, the maintenance personnel remotely deploy and monitor the services of the network element (NE, Net Element) in the network through the EMS (Element Management System). In this case, if the device is faulty. When the control is disconnected from the network management, maintenance personnel need to go to the equipment site to check the cause of the failure. When the device is deployed in a remote area, it requires a high manpower and time cost to complete fault location and environment recovery. In order to solve the maintenance problem of the remotely-removed network element, the device vendor provides some simple positioning commands, such as ping and routing. However, due to the complexity and uncertainty of the NE device fault, these positioning commands cannot meet the device maintenance. Need.

The prior art has the following problems: the technology for maintaining the remotely-detached network element is too complicated, the fault location cost is high, and the fault location efficiency is low.

Summary of the invention

The disclosure solves the problems in the prior art that the maintenance of the remotely-detached network element is too complicated, the fault location cost is high, and the fault location efficiency is low.

To solve the above technical problem, an embodiment of the present disclosure provides a method for monitoring a remote network element, where the method includes: using a DCN monitoring channel to send a private ordinary packet to obtain a description information of a remote network element; When the element performs control, the private configuration packet is sent to modify the description information of the remote network element.

In the method, the description information of the remote network element includes: the second and third layer attributes of the remote network element, the network element attribute of the remote network element, and the key alarm information of the remote network element, and the designation of the remote network element. Power-down and reset information of the board.

In the method, the DCN monitoring channel is used to send the private common packet to obtain the description information of the remote network element, including: using the DCN monitoring channel, and sending the first private ordinary packet to obtain the second and third layer attributes of the remote network element; The DCN monitoring channel sends a second private ordinary packet to obtain the network element attribute of the remote network element, where the network element attribute includes a static route and an open type. The shortest path priority area information; the DCN monitoring channel is used to send the third private common message to obtain the key alarm information of the remote network element, and locate the disconnection fault of the remote network element according to the alarm information.

In the method, the sending of the private configuration packet to modify the description information of the remote network element includes: forming a command for modifying the Layer 2 and Layer 3 attributes of the remote network element according to the networking plan, and packaging the first private Configure the packet to be sent to the remote NE through the DCN monitoring channel. The command to modify the NE attribute of the remote NE is encapsulated into a second private configuration packet and sent to the remote device through the DCN monitoring channel. The end network element uses the DCN monitoring channel to send a third private configuration packet to power down or reset the specified board of the remote NE.

In the method, the first private common message, the second private ordinary message, the third private ordinary message, the first private configuration message, the second private configuration message, and the third private configuration are encapsulated by using an Ethernet format. Packets; support for querying the remote NE port IP, subnet mask, MAC address, connection type, VlanID, and bandwidth information of the remote NE; and supporting the IP attribute of the NE of the remote NE, the network element The IP attributes include the remote network element IP, subnet mask, and MAC address.

An apparatus for monitoring a remote network element, comprising: a network element information acquiring unit, configured to use a DCN monitoring channel to send a private ordinary packet to obtain a description information of a remote network element; and a network element control unit, configured to When the network element is controlled, the private configuration packet is sent to modify the description information of the remote network element.

In the device, the description information of the remote network element includes: the Layer 2 and Layer 3 attributes of the remote network element, the network element attribute of the remote network element, and the key alarm information of the remote network element, and the designation of the remote network element. Power-down and reset information of the board.

In the device, the network element information acquiring unit includes: a layer attribute acquiring module, configured to use the DCN monitoring channel to send the first private ordinary message to obtain the second and third layer attributes of the remote network element; the network element attribute obtaining module uses The DCN monitoring channel is used to send the second private common packet to obtain the network element attribute of the remote network element, where the network element attribute includes a static route and an open shortest path priority area information, and the disconnection acquisition module is used to monitor by using the DCN. The channel sends a third private ordinary packet to obtain key alarm information of the remote network element, and locates the disconnection fault of the remote network element according to the alarm information.

In the device, the network element control unit includes: a layer attribute configuration module, configured to modify a second and third layer attribute of the remote network element according to the network planning, and encapsulate the first private configuration message to be monitored by the DCN. The channel is sent to the remote network element. The network element attribute configuration module is configured to modify the network element attribute of the remote network element according to the network planning, and encapsulate the second private configuration message into the DCN monitoring channel and send the channel. The remote network element is configured to use the DCN monitoring channel to send a third private configuration packet to power down or reset the specified board of the remote NE.

The device further includes: an encapsulating unit, configured to encapsulate the first private ordinary message, the second private ordinary message, the third private ordinary message, the first private configuration message, and the second private by using an Ethernet format Configuring the packet and the third private configuration packet; Querying the remote NE port IP, subnet mask, MAC address, connection type, VlanID, and bandwidth information of the remote NE; and supporting the network of the remote NE. The meta-IP attribute, the network element IP attribute includes a remote network element IP, a subnet mask, and a MAC address.

A system for monitoring a remote network element, comprising: an access network element, a non-access network element, and a network element management device for monitoring the remote network element; and the access network element and the non-access network element are connected by using a fiber link. The network element management device is electrically connected to the access network element.

The foregoing technical solutions of the present disclosure have the following advantages: the technology for maintaining the remote network element provided by the example of the present disclosure is used to multiplex the DCN channel between the network elements, and the private message is used to transmit the query and configuration information, as long as the network element is If the physical channel is faulty, fault location and recovery of the remote NE can be completed.

DRAWINGS

1 is a schematic diagram showing a network topology structure of a packet optical transport network according to an embodiment of the present disclosure;

2 is a schematic flow chart of a method for monitoring a remote network element;

FIG. 3 is a schematic diagram showing the process of maintaining a remote pipe network element;

4 is a schematic structural diagram of a private message transmitted by using a DCN monitoring channel;

FIG. 5 is a schematic diagram of networking for locating a remote network element according to an embodiment of the present disclosure.

detailed description

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 1 , in the network topology of the packet optical transport network, the network element A is an access network element, and the network element B-network element N is a non-access network element, and the access network element may be one or more. The non-access network element may also be one or more.

The present disclosure provides a DCN monitoring channel of a packet optical transport network POTN device, which transmits configuration query information of a remote (unmanaged) network element, so that the device maintenance personnel can still query according to the configuration when the network element is out of the network management control. The information is resolved to the remote NE by fault location, so that the remote NE is monitored and managed by the NE management device.

An embodiment of the present disclosure provides a method for monitoring a remote network element, as shown in FIG. 2, including:

Step 201: The data communication network DCN is used to monitor the channel, and the private ordinary packet is sent to obtain the description information of the remote network element.

In step 202, when the remote network element needs to be controlled, the private configuration packet is sent to modify the description information of the remote network element.

The technology for maintaining the remote network element provided by the example of the present disclosure multiplexes the DCN channel of the data communication network between the network elements, and uses the private message to transmit the query and configuration information, as long as the physical channel between the network elements is not faulty, The fault location and recovery of the remote NE are completed.

Private messages can carry a wide variety of information, and the functions that they can implement are also diverse. In the embodiment of the present disclosure, the private message can obtain the description information of the remote network element or the description information of the remote network element.

In a private packet, a field identifier is used to obtain or modify the description information of the remote NE. If the private configuration packet is modified, it carries the modified attribute field and the modified value.

The description of the remote NE is various, including the Layer 2 and Layer 3 attributes of the remote NE, the NE attributes of the remote NE, and the key alarms of the remote NE. Power down and reset of the board. The Layer 2 and Layer 3 attributes are short for related attributes involved in Layer 2 switching technology and Layer 3 forwarding technology.

In a preferred embodiment, the description information of the remote network element is obtained by using the DCN monitoring channel to send a private common message, including:

The DCN monitoring channel is used to send the first private common packet to obtain the Layer 2 and Layer 3 attributes of the remote network element.

The DCN monitoring channel is used to send the second private common packet to obtain the network element attribute of the remote network element. The network element attribute includes the static route and the Open Shortest Path First (OSPF) area information, for example, the network element IP. , The IP address mask of the network element and the MAC address of the network element belong to static routing information.

The DCN monitoring channel is used to send the third private common packet to obtain the key alarm information of the remote network element, and locate the remote management unit's disconnection fault according to the alarm information.

In a preferred embodiment, modifying the description information of the remote network element by sending a private configuration message includes:

The command to modify the Layer 2 and Layer 3 attributes of the remote NE is configured to be encapsulated into the first private configuration packet and sent to the remote NE through the DCN monitoring channel.

The command to modify the network element attribute of the remote NE is formed according to the networking plan, and is encapsulated into a second private configuration packet and sent to the remote network element through the DCN monitoring channel.

The DCN monitoring channel is used to send a third private configuration packet to power down and reset the specified board of the remote NE.

In one embodiment, the DCN monitoring channel of the packet optical transport network POTN device is used to transmit configuration query information of the remote pipe network element, and the process includes:

The DCN monitoring channel is used to send the first private common packet to obtain the Layer 2 and Layer 3 attributes of the remote network element.

The Layer 2 and Layer 3 attributes of the remote NE are modified according to the networking plan, and are encapsulated into the first private configuration packet and sent to the remote NE through the DCN monitoring channel.

The remote network element modifies the Layer 2 and Layer 3 attributes of the remote network element according to the received first private configuration packet.

The DCN monitoring channel is used to send the second private ordinary packet to obtain the network element attribute of the remote network element.

The network element attribute of the remote NE is modified according to the network planning, and the second private configuration packet is encapsulated into the second CNN to be sent to the remote NE.

The remote network element modifies the network element attribute of the remote network element according to the received configuration packet.

The DCN monitoring channel is used to send the third private common packet to obtain the key alarm information of the remote network element, and locate the disconnection fault of the remote network element according to the alarm information.

The DCN monitoring channel is used to send the third private configuration packet to power down and reset the specified board of the remote NE.

The remote NE is powered off and resets the specified board according to the received third private configuration packet.

By maintaining the remote network element by this method, the maintenance efficiency of the device is greatly improved, a large amount of labor and financial costs are saved, and customer satisfaction is improved.

In an application scenario, in a packet optical transport network POTN network, when a non-access network element is removed from the network management, the technology provided by the present disclosure may be used to remove network management, access network elements, and physical connection faults, as shown in FIG. Show that this includes:

In step 301, it is checked whether the network element management device works normally, and the device fault caused by the failure of the server or client of the element management system (EMS) is excluded.

Step 302: Check whether the access network element is working properly, including whether the hardware of the device is damaged, whether the software works abnormally, and the remote network element management fault caused by the access network element failure is excluded;

Step 303: Check the physical connection between the access network element and the non-access network element, and generally use an instrument to check whether the received light of the optical fiber is faulty.

After the network management, the access network element, and the physical connection are faulty, the example of the present disclosure is used to maintain the remote network element:

Step 304: Determine whether the remote network element is disconnected due to an abnormality of the Layer 2 and Layer 3 attributes or an abnormality of the IP attribute of the network element. If yes, go to step 305, otherwise go to step 306.

Use the DCN monitoring channel to send private ordinary packets. The private packets are encapsulated in Ethernet. The specific format is shown in Figure 4.

Query the Layer 2 and Layer 3 attributes of the remote NE, including the remote NE port IP address, subnet mask, MAC address, connection type (PPP/ETH), VlanID, and bandwidth information. The IP address of the NE, including the IP address of the remote NE, subnet mask, and MAC address. Compare the configuration information with the network planning information to check whether there is abnormal configuration information.

In step 305, the private message is still sent by the DCN monitoring channel, and the configuration information is modified according to the network plan to solve the fault.

Step 306, the second and third layer attributes of the remote network element are normal. The information of the static route and the OSPF area is queried through the DCN monitoring channel to determine whether other configuration information of the NE has abnormal information. If yes, go to step 307.

In step 307, the remote network element is disconnected from the network through the static route of the network element and the OSPF area. Then, the configuration information is sent by the DCN monitoring channel, and the configuration information is modified according to the network plan to solve the fault.

Step 308: If no abnormality is found in the configuration information, the DCN monitoring channel is used to query the key alarm information of the remote NE, and the fault location of the remote NE and the fault cause are confirmed according to the critical alarm information.

In step 309, if the board in which the fault is located is determined, and the fault is not solved, the board can be powered off and reset by the DCN monitoring channel, and the faulty board is powered off and reset.

In step 310, after the faulty board is reset and restarted, the fault is rectified through the DCN monitoring channel. The normal service abnormality and the disconnection fault can be removed by power failure and reset. The remote NE can be managed by the NE management device. .

The present disclosure provides an element management device for monitoring a remote network element, including:

The network element information acquiring unit is configured to use the DCN monitoring channel to send a private ordinary packet to obtain description information of the remote network element.

The network element control unit is configured to send a private configuration packet to modify the description information of the remote network element when the remote network element needs to be controlled.

The technology for maintaining the remote network element provided by the example of the present disclosure is used to multiplex the DCN channel between the network elements, and the private message is used to transmit the query and configuration information. As long as the physical channel between the network elements is not faulty, the remote end can be completed. Fault location and recovery of network elements.

In one embodiment, the description information of the remote network element includes: Layer 2 and Layer 3 attributes of the remote network element, network element attributes of the remote network element, and key alarm information of the remote network element, and designation of the remote network element. Power-down and reset information of the board.

In an embodiment, the network element information obtaining unit includes:

a layer attribute obtaining module, configured to use the DCN monitoring channel to send the first private ordinary packet to obtain the second and third layer attributes of the remote network element;

The network element attribute obtaining module is configured to use the DCN monitoring channel to send a second private common message to obtain a network element attribute of the remote network element, where the network element attribute includes a static route and an OSPF area information;

The out-of-pipe acquisition module is configured to use the DCN monitoring channel to send a third private common packet to obtain key alarm information of the remote network element, and locate the disconnection fault of the remote network element according to the alarm information.

In an embodiment, the network element control unit includes:

The layer attribute configuration module is configured to modify a second and third layer attribute of the remote network element according to the networking plan, and encapsulate the The first private configuration packet is sent to the remote network element through the DCN monitoring channel.

The network element attribute configuration module is configured to: according to the network planning, form a command to modify the network element attribute of the remote network element, and encapsulate the second private configuration message into the remote network element through the DCN monitoring channel;

The detachment configuration module is configured to use the DCN monitoring channel to send a third private configuration packet to power down and reset the specified board of the remote NE.

In one embodiment, the method further includes:

The encapsulating unit is configured to encapsulate the first private common message, the second private common message, the third private common message, the first private configuration message, the second private configuration message, and the third private configuration message in Ethernet Form a message.

The present disclosure provides a system for monitoring a remote network element, as shown in FIG. 5, including an access network element A, a non-access network element B, and an element management device for monitoring a remote network element;

The access network element A and the non-access network element B are connected by a fiber link, and the network element management device is electrically connected to the access network element A.

In an embodiment, as shown in FIG. 1 , the access network element is a network element directly connected to the network element management apparatus, and the non-access network element generally refers to directly or indirectly connected with the access network element, and passes through the access network. A network element managed by a network element management device.

To solve the fault location of the remote disconnection device, the network element management device manages the remote non-access NE B through access network element A. When the non-access NE B is disconnected from the management of the network management system due to some fault, it is maintained. The process of remotely accessing the network element B may refer to the embodiment described in FIG. 3, including:

Step 501: Check whether the server client-network element management device of the network element management system works normally, and excludes the non-access network element from being disconnected due to the failure of the access network element. The specific method includes: viewing the routing information of the access network element. The working status of the board and the alarm recovery situation; use the meter to check whether the optical fiber receiving power between the access network element A and the non-access network element B is normal.

Step 502: After the network element management device is faulty, the access network element is faulty, and the physical connection is faulty, the private CNN is sent to the non-access NE B through the DCN monitoring channel to view the Layer 2 and Layer 3 attributes of the non-access NE B. Yes:

Optical port IP: 50.50.50.160

Optical port mask: 255.255.255.0

Optical port MAC: 0011-5a5a-4bc8

Optical port connection type: PPP

Compare the Layer 2 and Layer 3 attributes of the non-access NE B with the networking plan, and combine the Layer 2 and Layer 3 attributes of the access NE A:

Optical port IP: 50.50.50.121

Optical port mask: 255.255.255.0

Optical port MAC: 0011-1cd2-144c

Optical port connection type: eth

The positioning comparison found that the connection types of the two interconnected gates were inconsistent. Change the connection type of the optical interface of the non-access NE to the eth type.

In step 503, the private common packet is sent to the non-access NE B through the DCN monitoring channel, and the attributes such as the IP address of the non-access NE B are as follows:

NE IP: 192.43.43.43

NE IP mask: 255.255.255.255

NE MAC: 0011-2198-f54d

NE OSPF area: 2.0.0.0

Compare the NE attributes of the non-access NEs with the networking plan, and combine the NE attributes of the access NE A:

NE IP: 191.21.21.22

NE IP mask: 255.255.255.255

Network element MAC: 0011-8f97-4545

NE OSPF area: 0.0.0.0

The OSPF area number of the non-access NE and the access NE A is inconsistent. The OSPF area number of the non-access NE B is modified by the DCN monitoring channel. 0.0.0.0.

Step 504: Send a private common message to the non-access NE B through the DCN monitoring channel to view the alarm information on the non-access NE B. The alarm information includes the board abnormality information of the board where the optical port used by the non-access NE is monitored. The area where the non-access NE is located is far from the area where the NE management device is located, and the fault cannot be located on the board. However, the fault can be removed by inserting and removing the board.

Step 505: The private CNN is sent to the non-access NE B through the DCN monitoring channel, and the abnormal board of the non-access NE B is powered off and reset. After the board is reset and restarted, the NE management device can manage the NEs normally.

The advantage of using this solution is that the DCN monitoring channel of the POTN device is used to transmit the Layer 2 and Layer 3 attributes of the remotely-secured network element, the NE configuration information, and the key alarm information, and the remote control commands can be used to control the main control board and services. The board performs operations such as power-down and reset, and finally achieves the purpose of maintaining the remote network element and solving the fault; improving the maintenance cost of the remotely-detached network element and improving the efficiency of fault location and resolution, so as to reduce the cost of fault location and improve efficiency. the goal of.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. It should be considered as the scope of protection of this disclosure.

Claims (12)

A method for monitoring a remote network element, the method comprising: The DCN monitoring channel is used to send private ordinary packets to obtain description information of the remote network element. When the remote network element needs to be controlled, the private configuration packet is sent to modify the description information of the remote network element. The method of claim 1 wherein The description of the remote NE includes the Layer 2 and Layer 3 attributes of the remote NE, the NE attributes of the remote NE, and the key alarms of the remote NE. Reset the information. The method of claim 1, wherein the using the DCN monitoring channel to send the private common message to obtain the description information of the remote network element comprises: The DCN monitoring channel is used to send the first private common packet to obtain the Layer 2 and Layer 3 attributes of the remote network element. The DCN monitoring channel is used to send the second private common packet to obtain the network element attribute of the remote network element, where the network element attribute includes a static route and an open shortest path priority area information; The DCN monitoring channel is used to send the third private common packet to obtain the key alarm information of the remote network element, and locate the disconnection fault of the remote network element according to the alarm information. The method of claim 1, wherein the modifying the description information of the remote network element by sending the private configuration message comprises: The command to modify the Layer 2 and Layer 3 attributes of the remote NE is configured to be encapsulated into the first private configuration packet and sent to the remote NE through the DCN monitoring channel. The command to modify the network element attribute of the remote NE is formed according to the networking plan, and is encapsulated into a second private configuration packet and sent to the remote network element through the DCN monitoring channel. The DCN monitoring channel is used to send a third private configuration packet to power down or reset the specified board of the remote NE. The method of claim 1, wherein the first private normal message, the second private normal message, the third private normal message, the first private configuration message, and the second private configuration message are encapsulated by using an Ethernet format. And a third private configuration message; Supporting the remote network element port IP, subnet mask, MAC address, connection type, VlanID, and bandwidth information of the remote network element; and supporting the IP attribute of the network element of the remote network element, where the IP attribute of the network element includes Remote NE IP, subnet mask, and MAC address. A device for monitoring a remote network element, including: The network element information acquiring unit is configured to use the DCN monitoring channel to send a private ordinary packet to obtain description information of the remote network element. The network element control unit is configured to send a private configuration packet to modify the description information of the remote network element when the remote network element needs to be controlled. The apparatus according to claim 6, wherein The description information of the remote NE includes the Layer 2 and Layer 3 attributes of the remote NE, the NE attributes of the remote NE, and the remote NE. The key alarm information is the power-down and reset information of the specified board of the remote NE. The device according to claim 6, wherein the network element information acquiring unit comprises: a layer attribute obtaining module, configured to use the DCN monitoring channel to send the first private ordinary packet to obtain the second and third layer attributes of the remote network element; The network element attribute obtaining module is configured to use the DCN monitoring channel to send a second private common message to obtain a network element attribute of the remote network element, where the network element attribute includes a static route and an open shortest path priority area information; The out-of-pipe acquisition module is configured to use the DCN monitoring channel to send a third private common packet to obtain key alarm information of the remote network element, and locate the disconnection fault of the remote network element according to the alarm information. The apparatus according to claim 6, wherein the network element control unit comprises: The layer attribute configuration module is configured to, according to the network planning, form a command to modify the Layer 2 and Layer 3 attributes of the remote network element, and encapsulate the first private configuration message to the remote network element through the DCN monitoring channel; The network element attribute configuration module is configured to: according to the network planning, form a command to modify the network element attribute of the remote network element, and encapsulate the second private configuration message into the remote network element through the DCN monitoring channel; The detachment configuration module is configured to use the DCN monitoring channel to send a third private configuration packet to power down or reset the specified board of the remote NE. The apparatus of claim 6 further comprising: The encapsulating unit is configured to encapsulate the first private common message, the second private common message, the third private common message, the first private configuration message, the second private configuration message, and the third private configuration report by using an Ethernet format Supporting the remote network element port IP, subnet mask, MAC address, connection type, VlanID, and bandwidth information of the remote network element; and supporting the IP attribute of the network element of the remote network element, the network element IP The attributes include the remote NE IP, subnet mask, and MAC address. A system for monitoring configuration query information of a remote network element, including an access network element, a non-access network element, and an element management device for monitoring a remote network element; The access network element and the non-access network element are connected by a fiber link, and the network element management device is electrically connected to the access network element. A computer storage medium storing execution instructions for performing the method of any one of claims 1 to 5.

Images