CN115296987A

CN115296987A - SDH device network element automatic tube loading method and system

Info

Publication number: CN115296987A
Application number: CN202210884491.5A
Authority: CN
Inventors: 李爱平; 钟君; 陈智勇; 刘睿
Original assignee: Fiberhome Telecommunication Technologies Co Ltd; Wuhan Fiberhome Technical Services Co Ltd
Current assignee: Fiberhome Telecommunication Technologies Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-04
Anticipated expiration: 2042-07-25
Also published as: CN115296987B

Abstract

The application relates to a method and a system for automatically installing a network element of SDH equipment, which comprises the following steps: determining a unique physical interface in the network element to open a network element management port and an Ethernet channel to realize data forwarding; the network element which has been up-connected interacts message with the network element which has not been up-connected through DCCR channel and communicates with the network management system through Ethernet channel, so as to drive the network element which has not been up-connected in the same subnet to automatically up-connect. The method can solve the problems that newly opened equipment is difficult to match with complex route planning and is difficult to automatically open in the related technology.

Description

SDH device network element automatic tube loading method and system

Technical Field

The present invention relates to the field of SDH device and management network technology, and in particular, to an automatic network element pipe installing method and system for an SDH device.

Background

The management network of the conventional SDH (Synchronous Digital Hierarchy) device is implemented by using a DCC Channel (Data Communication Channel), which provides a physical basis for Communication for SDH network management.

With the development of SDH technology, a control plane is introduced in an SDH optical transport network, and the introduction of the control plane requires that a device provide a channel for constructing a control plane network, the channel is usually carried by a multiplex section data path byte (DCCM), so that information for transmitting OAM is usually carried by a regeneration section data path byte (DCCR), and the bandwidth provided is only 192kbit/s. However, the new SDH device has a high concentration and a large cross capacity, and needs to transmit more OAM information such as configuration, alarm, performance, status, and the like. The above bandwidth has not been able to meet the requirements of new SDH devices.

In the related technology, an EMS (Element Management System) accesses a client DCN network through a backbone three-layer switch, a gateway network Element of an SDH device is connected with the client DCN through a bone trunk three-layer switch, and a client allocates a DCN IP to the gateway network Element. In addition, in order to reduce the difficulty of engineering opening, newly-opened equipment needs to automatically learn the management network parameter information of the neighbor network element in the related technology, and because complex routing protocol configuration needs to be performed on the network element upper pipe and the flexibility of the routing protocol is based, the newly-added equipment cannot be matched with complex routing planning by learning the network parameter generated by the neighbor management network information, and automatic opening is difficult to achieve.

Disclosure of Invention

The embodiment of the invention provides an automatic network element management method and system for SDH equipment, which aim to solve the problems that newly opened equipment is difficult to match with complex route planning and difficult to automatically open in the related technology.

The embodiment of the invention provides an automatic network element tube installing method of SDH equipment, which is characterized by comprising the following steps:

determining a unique physical interface in the network element to open a network element management port and an Ethernet channel to realize data forwarding;

the network element which has been up-connected interacts message with the network element which has not been up-connected through DCCR channel and communicates with the network management system through Ethernet channel, so as to drive the network element which has not been up-connected in the same subnet to automatically up-connect.

In some embodiments, the determining a unique physical interface in a network element to open a network element management port and an ethernet channel to implement data forwarding includes:

calculating the cost value of each interface in the network element according to the slot position information, the interface type and the port number of the network element;

and selecting the interface with the minimum cost value as the unique physical interface.

In some embodiments, the method for automatically switching a network element on a non-pipe network in a same subnet includes:

the network element to be uploaded performs message interaction with the uploaded neighbor network element through a DCCR channel to determine an uploaded proxy network element and forwards equipment information of the network element through the uploaded neighbor network element;

the network management system receives the equipment information of the network element to be managed forwarded by the upper reporting generation network element through an Ethernet channel, then determines the network configuration information of each station between the gateway network element and the network element to be managed and issues the network configuration information to the corresponding network element, wherein the network configuration information is used for getting through the Ethernet channel between the network element to be managed and the gateway network element;

and the network element to be uploaded receives the corresponding network configuration information from the uploading agent network element to realize automatic uploading.

In some embodiments, the method for determining a top generation reporting network element and forwarding device information of a self network element through a top neighbor network element by performing message interaction between the to-be-top network element and a top neighbor network element through a DCCR channel includes:

the managed network element floods network parameter information of the managed network element to a neighbor network element through a DCCR channel;

the network element to be uploaded determines a neighbor network element which is uploaded as an uploading generation network element according to the network parameter information and generates the network parameter information of the network element to be uploaded so that the network element to be uploaded and the uploading generation network element are in the same subnet;

and the network element to be managed sends the equipment information containing the network parameter information of the network element to be managed to the upper generation reporting network element through the DCCR channel.

In some embodiments, the network management system determines network configuration information of each site between a gateway network element and a network element to be managed after receiving device information of the network element to be managed forwarded by the network element to be managed through an ethernet channel, and issues the network configuration information to a corresponding network element, and includes:

selecting two VC12 time slots as time slots bound by the VCG port of the network element to be installed according to the board card information in the equipment information, and determining the VCG port configuration information and the cross configuration information of the network element to be installed;

sequentially selecting two VC12 time slots respectively bound by corresponding VCG ports of a gateway network element and each intermediate network element, and determining corresponding VCG port configuration information and cross configuration information;

the VCG port configuration information and the cross configuration information of the network element to be managed are sent to the corresponding upper proxy network element;

and correspondingly and directly issuing the VCG port configuration information and the cross configuration information of the gateway network element and each intermediate network element to the corresponding network element.

In some embodiments, the selecting two VC12 time slots as the time slot bound to the VCG port of the network element to be managed according to the board information in the device information includes:

calculating the VC12 time slot cost value to be selected according to the slot position information, the port rate, the VC4 time slot cost value and the VC12 time slot cost value in the board card information;

and taking the two VC12 time slots with the minimum cost value of the VC12 time slots to be selected as the time slots bound by the VCG ports of the network element to be managed.

In a second aspect, an embodiment of the present invention provides an automatic network element tube installing system for an SDH device, where the automatic tube installing system is characterized in that the automatic tube installing system includes:

a network element for determining a unique physical interface in the network element to open the network element management port and the ethernet channel for data forwarding, and,

the network elements which are already installed in the network elements are used for interacting messages with network elements which are not already installed through the DCCR channel and communicating with the network management system through the Ethernet channel so as to drive the network elements which are not already installed in the same subnet to automatically install the tubes.

In some embodiments, the network element is further configured to:

In some embodiments, a to-be-managed network element in the non-managed network elements is configured to:

performing message interaction with an upper-tube neighbor network element through a DCCR channel to determine an upper-tube proxy network element and forwarding equipment information of the network element by the upper-tube neighbor network element;

the network management system is used for:

after receiving the device information of the network element to be uploaded forwarded by the uploading agent network element through an Ethernet channel, determining network configuration information of each station between a gateway network element and the network element to be uploaded and issuing the network configuration information to the corresponding network element, wherein the network configuration information is used for getting through the Ethernet channel between the network element to be uploaded and the gateway network element;

and the network element to be uploaded is also used for receiving corresponding network configuration information from the uploading agent network element to realize automatic uploading.

In some embodiments, the managed network element is further configured to flood network parameter information of the managed network element itself to a neighbor network element through a DCCR channel;

the network element to be installed is further configured to:

determining a neighbor network element which is already uploaded as an uploading generation network element according to the network parameter information and generating network parameter information of a network element to be uploaded so that the network element to be uploaded and the uploading generation network element are in the same subnet;

and sending the equipment information containing the network parameter information of the equipment to the upper proxy network element through a DCCR channel.

In some embodiments, the network management system is further configured to:

sequentially selecting two VC12 time slots respectively bound by a gateway network element and a VCG port corresponding to each intermediate network element, and determining corresponding VCG port configuration information and cross configuration information;

In some embodiments, the network management system is further configured to:

and taking the two VC12 time slots with the minimum cost value of the VC12 time slots to be selected as the time slots bound by the VCG ports of the network element to be managed. The technical scheme provided by the invention has the beneficial effects that:

through the matching of the EOS board card of the network element and the DCC channel of the SDH equipment, the gateway network element can be communicated with the EMS to realize the tube loading only by configuring the IP of one subnet with the EMS or one IP of the DCN network. For the non-gateway network element, the network element which has a neighbor relation with the gateway network element is used for loading the tube, and after the network element is loaded with the tube, the neighbor network element is driven to load the tube, so that the cyclic linear expansion is carried out, all the network elements are driven to load the tube automatically, and the new tube loading equipment can be supported to automatically join the existing network without complex routing configuration.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic flowchart of a method for automatically installing a network element of an SDH device according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a conventional SDH device management network according to an embodiment of the present invention

Fig. 3 is a schematic diagram of an automatic network element tube installing system of an SDH device according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a network element internal private protocol according to an embodiment of the present invention;

fig. 5 is a schematic diagram of network parameter information content of a network element flooding scheme provided in the embodiment of the present invention;

fig. 6 is a schematic diagram of a state machine operation of the DCCR communication sub-module according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides an automatic network element pipe installing method for an SDH device, which includes the steps of:

s1OO, determining a unique physical interface in a network element to open a network element management port and an Ethernet channel to realize data forwarding;

and S2OO, the network element which is already installed is communicated with the network element which is not installed through the DCCR channel and the network management system through the Ethernet channel so as to drive the network element which is not installed in the same subnet to automatically install the network.

It can be understood that, the data of the network management message is transmitted and received through the management port of the network element, and the determination of the unique physical interface in the network element means that one physical panel port of the EOS disk is selected to be connected with the management port through a network cable, so that the data received by the EOS disk can be forwarded to the management port. Meanwhile, the management port of the main control panel of the equipment network element can be connected with the FE port of the Ethernet terminal board by opening the network element management port and the Ethernet channel. And the main control board card two-layer switch realizes data forwarding in the VLAN of the terminal board port corresponding to the network element management port and the elected EOS FE port.

It is understood that the managed network elements include managed gateway network elements and managed non-gateway network elements, where the gateway network elements are network elements that manage ethernet interfaces of port-direct EMS or ethernet ports connected to DCN network switching devices. Whether the gateway network element is directly connected or connected to the EMS through the DCN network, the gateway network element only needs to configure the IP of one subnet of the gateway network element with the EMS or only needs to configure one IP of the DCN network element to be communicated with the EMS so as to realize the tube management. For the non-gateway network element, the network needs to be added by the method in the embodiment of the invention, firstly, the network element and the gateway network element are positioned on the same subnet, and after the network element is positioned on the same subnet, other network elements positioned on the same subnet are driven to operate on the network, so that the cycle linear expansion is carried out, and the whole network element is driven to operate on the network.

It should be noted that, as shown in fig. 2, in the conventional SDH device management network, an EMS of a network management system is connected to an FE port of a management port of a gateway network element through an FE port (Fast Ethernet interface ), the network element and the network element are connected through a DCC channel, the network element connected through the DCC channel is located in different subnets, and a routing protocol such as an OSPF (Open Shortest Path First) protocol is run on the DCC channel to complete routing from the EMS to the network element. Wherein, the data information for OAM (operation, administration, maintenance) function is transmitted through D1-D12 bytes in VCG frame and transmitted on SDH network by VCG-N signal. Bytes D1-D12 provide a general data communication path accessible to all SDH network elements, which serves as a physical layer of an Embedded control path (ECC) to transmit operation, management, and maintenance information (OAM information) between the network elements, thereby constituting a transport path of an SDH Management Network (SMN). Meanwhile, D1-D3 are regeneration section data path bytes (DCCR), have a rate of 3 × 64kbit/s =192kbit/s, and are used for transmitting OAM information between regeneration section terminals; D4-D12 are multiplex section data path bytes (DCCM), 9 × 64kbit/s =576kbit/s in total, and are used for transmitting OAM information between multiplex section terminals. The DCC channel rate is 768kbit/s in total. Because the network elements of the DCCR networking require the network elements to be in different networks, the management network needs to run a routing protocol, complex routing configuration is needed for opening the management network, and the newly added network elements are very difficult to automatically add into the existing network. Meanwhile, the SDH device is usually accessed to the EMS system through the client DCN network, and cannot be directly accessed to the client DCN through the DCCR networking.

For the above-mentioned problems existing in the conventional SDH device management network, as shown in fig. 3, in the embodiment of the present invention, the DCC channel is not used in the management network, but used for transmitting messages (managing network parameter information, etc.) between network elements, so that the purpose of the existing DCC channel is changed, the management network can be directly interfaced with the DCN network, and the requirement that OAM information penetrates through the client DCN network is satisfied. Meanwhile, when the network element is used for tube loading, the tube loaded network element and the tube unloaded network element are in one subnet through message interaction between the tube loaded network element and the tube unloaded network element, complex route configuration is not needed, the new tube loading device can be supported to automatically add the existing network, and engineering operation and maintenance are greatly facilitated.

In some embodiments, S100 comprises the steps of:

s110, calculating the cost value of each interface in the network element according to the slot position information, the interface type and the port number of the network element;

and S120, selecting the interface with the minimum cost value as the unique physical interface.

It should be noted that each network element needs to configure an EOS board, and the board may have an FE port or a GE port. Each network element is simultaneously configured with an Ethernet terminal board. The non-gateway network element connects the management port with the first port of the Ethernet terminal board.

The main control selects a port of a proper EOS board card as a unique physical interface (management network port) through an intelligent algorithm, the intelligent algorithm comprises the steps of calculating the cost value of each interface in a network element according to slot position information, interface types and port numbers of the network element, and selecting an interface with the minimum cost value as the unique physical interface. Intelligent algorithm to ensure that a uniquely determined interface in the network element is proposed, it is preferable to select the low rate ethernet first to protect the high rate interface resources.

The intelligent algorithm takes the interface type, the slot position where the EOS board card is located, the interface type, the port number and the maximum slot position of the network element as algorithm factors, and the algorithm specifically comprises the following steps:

the algorithm factor is as follows: SLOT (SLOT), interface type (INERFACE TYPE): FE/GE, port number: PORT _ NUMBER;

maximum slot number of network element: max (SLOT);

COST value assignment: SLOT (SLOT), SLOT, FE:1, GE Max (SLOT), PORT _ NUMBER:1;

interface COST = COST (SLOT) + COST (INERFACEPY) + COST (PORT _ NUMBER)

And selecting the interface with the minimum COST value as an Ethernet physical port added into the management network.

It can be understood that, after the ethernet physical port added to the management network is selected, the main control switch adds the main control management port, the ethernet physical port of the management network, and the first port of the terminal board to the same VLAN, which is responsible for forwarding the management data.

In some embodiments, S200 includes the steps of:

s210, the network element to be uploaded performs message interaction with the uploaded neighbor network element through a DCCR channel to determine an uploaded generation network element and forwards the equipment information of the network element through the uploaded neighbor network element;

s220, the network management system receives the equipment information of the network element to be managed forwarded by the upper reporting network element through an Ethernet channel, then determines the network configuration information of each station between the gateway network element and the network element to be managed and sends the network configuration information to the corresponding network element, wherein the network configuration information is used for getting through the Ethernet channel between the network element to be managed and the gateway network element;

and S230, the network element to be managed receives the corresponding network configuration information from the management agent network element to realize automatic management.

It should be noted that, the gateway network element can actively push the gateway network element management information to the EMS network management system, the network management system and the gateway network element establish heartbeat connection, and the first-station gateway network element implements the tube loading on the EMS network management system; after the network element of the gateway is installed, other network elements to be installed realize automatic installation through S210, S220 and S230.

In some embodiments, S210 includes the steps of:

s211, the managed network element floods the network parameter information of the managed network element to the neighbor network element through a DCCR channel;

s212, the network element to be uploaded determines a neighbor network element which is uploaded as an uploading generation network element of the network element to be uploaded according to the network parameter information and generates network parameter information of the network element to be uploaded so that the network element to be uploaded and the uploading generation network element are in the same subnet;

s213, the network element to be uploaded sends the device information containing the network parameter information of the network element to be uploaded to the uploading agent network element through the DCCR channel.

It should be noted that the network parameter information includes a network element IP address, a subnet mask, subnet address information, and the like. In a preferred embodiment, the information content of the network parameters of the network element flood is shown in fig. 5, wherein each network element presets KEY1, KEY2, and KEY3 information at the time of factory shipment. The device information includes network parameter information, board card information, and the like.

It can be understood that, in order to enable the newly added network element to generate its own network parameter, the managed network element diffuses its own network parameter information to the neighboring network element according to a certain frequency. After the network element to be managed acquires the IP address through the neighbor managed network element, an own IP address (a subnet IP address that is not repeated with other managed network elements) can be generated according to the IP address to ensure that the network element is in the same subnet as the neighbor managed network element.

In a specific embodiment, the master controller floods network parameter information to all DCCR ports in an UP state. The main control switch and the PHY port of the FGPA of the SDH service board card establish a LINK relationship, and run a network element internal private protocol in the format shown in fig. 4 on the ethernet channel. Wherein, the MAC of the master control is determined as ID1-ID2-ID3-R-10-S (ID 1-ID3 is manufacturer ID, R is frame number, S is SLOT value); the MAC of the corresponding SDH service board FPGA port is as follows: ID1-ID2-ID3-R-01-S (ID 1-ID3 is manufacturer ID, R is frame number, S is SLOT value); corresponding to the division of the VLAN, the main control uses a certain fixed VLAND ID (the VLAN ID can not be repeated with the VLAN ID of the DCCR port of the service board card); for the service board card, 20 VLANs are allocated to each service board card, the VLAN ID corresponding to the first DCCR port of each service board card is SLOT +1, and the VLAN IDs corresponding to the other ports are SLOT +20+port ID; and using the protocol identification to identify the data content as a communication protocol ID value between the port of the master switch and the port of the FPGA. The payload of the protocol is data on SDH lines between network elements (PPP protocol is operated on the lines). The network parameter information sent by the network element is in a PPP protocol payload area, and the data is organized according to a TLV protocol. The content organization of the VALUE is shown in fig. 5, the IP address and the subnet mask are content configured for IP parameters of a network element management interface, and the EMS flag is a heartbeat flag byte of the network element and the EMS network management system. If the heartbeat of the network element and the EMS network management system is normal, the flag byte is set to be 1, otherwise, the flag byte is set to be 0. After receiving the data sent from the main control CPU, the FPGA of the network element SDH service board card analyzes the DCCR port information, peels off the internal communication protocol header of the network element, inserts the whole PPP message into the DCCR overhead time slot, and completes the sending of the management information on the line.

In a specific embodiment, the FPGA of the network element SDH service board extracts DCCR overhead content from a line, adds PPP data between network elements to the package of the service FPGA port and the main control switch port (in the format shown in fig. 5), and fills the main control MAC and its own MAC. The MAC of the master is obtained through active learning in the received data (network parameter information) sent by the master CPU of the neighbor network element. The source MAC of itself may pass the rules: IP = neighbor network element IP & neighbor network element subnet mask + (network element KEY1< <16+ network element KEY2< <8+ network element KEY 3) & (the inverse code of neighbor network element subnet mask), which ensures that the IP generated by learning the network parameters of the neighbor network element and the neighbor network element that has been loaded on the pipe are in the same subnet, and the VLAN ID can be generated according to the rule of SLOT + 20+ port of the received message.

After receiving the data sent by the service board card, the main control CPU analyzes the payload data of the PPP protocol, judges whether the EMS flag byte is 1 if the payload data is the network parameter information, and indicates that a neighbor network element does not establish heartbeat connection with a network manager if the EMS flag byte is not 1, so that the learning of the network parameter of the network element is abandoned; if the number is 1, continuing to judge whether the management network parameters of the management port of the network element are successfully generated, and if not, generating the network parameters according to the IP calculation rule.

In a specific embodiment, after the network element generates the management network parameter information, the device information of the network element is sent to the DCCR port which learns the parameters of the neighbor network element. When receiving the neighbor network parameter message with EMS state of 1 from a plurality of ports, only selecting the DCCR port with the minimum COST value as a response port. Wherein, the equipment information model is as follows:

network element KEY information: KEY1, KEY2, KEY3;

managing network parameter information: IP address, subnet mask;

frame information: frame type, frame address;

board card information: the name of the board card, the type of the board card (master control/SDH service board card/EOS service board card/PDH service board card/terminal board card/power board card/fan board card, etc.), the total number of ports and the rate of the ports;

and the network element CPU encapsulates the message data, and the TYPE identifier in the TLV in the PPP payload is the network element equipment information. And the FPGA of the SDH service board card is responsible for inputting the message into the DCCR time slot.

In some embodiments, after receiving the device information sent by the neighbor non-managed network element, the managed agent network element forwards the device information to the EMS. Preferably, the message model reported to the EMS is:

the KEY information of the network element: KEY1, KEY2, KEY3;

a DCCR port of a local network element;

applying for a DCCR port of a joined network element;

applying for the added network element KEY information: KEY1, KEY2, KEY3;

applying for the added network element management network parameter information: IP address, subnet mask;

applying for the added net element frame information: frame type, frame address;

applying for the information of the added network element board card: the name of the board card, the type of the board card (master control/SDH service board card/EOS service board card/PDH service board card/terminal board card/power board card/fan board card, etc.), the total number of ports and the rate of the ports.

In some embodiments, S220 includes the steps of:

s221, selecting two VC12 time slots as time slots bound by the VCG port of the network element to be managed according to the board card information in the equipment information, and determining the VCG port configuration information and the cross configuration information of the network element to be managed;

s222, sequentially selecting two VC12 time slots respectively bound by the corresponding VCG ports of the gateway network element and each intermediate network element and determining corresponding VCG port configuration information and cross configuration information;

s223, sending the VCG port configuration information and the cross configuration information of the network element to be managed to the corresponding network element to be managed;

and S224, directly issuing the corresponding VCG port configuration information and the cross configuration information of the gateway network element and each intermediate network element to the corresponding network element.

It should be noted that the VCG port is a logic port of the EOS board. Since the bandwidth of one VC12 slot is 2M, binding a VCG port to two VC12 slots can form a 4M management bandwidth.

The embodiment improves the management bandwidth of the SDH equipment to 4Mbit/s, can transmit more OAM information, and meets the management requirement of a scene of a large-capacity multi-service board card of the novel SDH equipment.

In some embodiments, S221 comprises the steps of:

s221a: calculating the VC12 time slot cost value to be selected according to the slot position information, the port rate, the VC4 time slot cost value and the VC12 time slot cost value in the board card information;

s221b: and taking the two VC12 time slots with the minimum cost value of the VC12 time slots to be selected as the time slots bound by the VCG ports of the network element to be managed.

In some embodiments, when the VC12 time slot is selected, a low-rate VCG port is preferentially selected as a line port, each VCG binds two VC12 time slots, allocation is preferentially started from the first VC4 time slot to the first VC12 time slot, and an STM disk with a small slot position is preferentially used. When the VC12 time slot cost value to be selected is calculated, the algorithm factors are as follows: SLOT (SLOT), VCG interface RATE (RATE), VC4 SLOT number, VC12 SLOT number, and a cost overhead value is assigned to each factor.

COST values are assigned as follows:

SLOT (SLOT) SLOT;

interface rate:

VCG－1：Max(slot)，

VCG－4:Max(slot)*2,

VCG－16：Max(slot)*3,

VCG－64:Max(slot)*4；

VC4：(N-1)*64+1；

VC12：(N-1)*64+1。

and the cost value of the VC12 time slot to be selected is the sum of the slot position cost value, the port rate cost value, the VC4 time slot cost value and the VC12 time slot cost value, and two VC12 time slots with the minimum cost value of the VC12 time slots to be selected are selected as the binding time slots of the VCG port.

The EMS acquires topology information of the whole network through local network element port information DCCR and far-end DCCR port information in information (equipment information) of requesting to install the tube, which is reported by the network element, of a neighbor network element. And acquiring the service routing information of the gateway network element and the network element requesting to manage the pipe through the topology information of the network. When two VC12 time slots are bound to VCG ports of network elements of a gateway network element and a middle site, the cost value of the VC12 time slot to be selected is calculated by adopting the same algorithm factor, the VC12 time slot is selected, and the VC12 time slot occupied by the service is required to be eliminated during selection.

In some embodiments, after the network manager completes the selection of the VC12 time slot, the network element to be managed and the gateway network element generate the configuration of the VCG interface, the high-order port, and the low-order port, and the configuration and cross configuration of the VCG interface and the binding time slot. And generating the configuration and the cross configuration of an STM interface, a high-order port and a low-order port for the intermediate site. Except the configuration of the network element to be uploaded, the configurations of other network elements are all sent to the corresponding network elements, and the configuration of the newly added network element is sent to the uploading reporting network element of the forwarding equipment information.

Preferably, the configuration model of the pipe element to be managed is:

KEY information of the target network element: KEY1, KEY2, KEY3;

receiving the KEY information of the configured network elements: KEY1, KEY2, KEY3;

data content: the data payload is configured.

After receiving the configuration of the EMS, the upper reporting network element which forwards the equipment information of the network element to be upper is compared with the KEY information of the substitute receiving configuration network element, if the KEY information of the substitute receiving configuration network element is completely matched with the KEY information of the self, the KEY information of the target network element is used for searching the corresponding local DCCR port and remote DCCR port information which receive the source equipment information, the target MAC, the source MAC and VLANID information in the network element are packaged, TYPE in TLV of PPP payload is set as configuration, and partial content of VALUE is configuration data sent by the EMS. After receiving the data, the FPGA port of the corresponding SDH service board card removes the internal protocol header of the network element, and part of the content of the PPP is injected into the DCCR time slot to finish sending the configuration data to the neighbor network element.

In some embodiments, after receiving the configuration data forwarded by the upper proxy network element, the FPGA of the SDH service board of the upper proxy network element extracts DCCR overhead data from the line, adds the protocol headers of the FPGA port and the main control CPU switch port, and then sends the configuration data forwarded by the upper proxy network element to the main control CPU. After receiving the configuration data, the master control CPU sends the data to the configuration processing assembly, the assembly completes the analysis and processing of the configuration, completes the creation of an STM interface and high and low-order logic interfaces, creates a VCG logic interface and binds in time slot, and generates in a cross mode, thereby completing the service opening of the management network opening.

The gateway network element and the intermediate network element directly receive the configuration data sent by the EMS, compare the KEY value of the target network element with the corresponding KEY value of the target network element, and directly deliver the configuration data to the configuration processing component for processing. The gateway network element completes the creation of the STM interface and the high-low order logic interface, the creation of the VCG logic interface, the time slot binding and the cross generation and the completion of the service opening of the management network, and the intermediate station completes the creation of the STM interface and the high-low order logic interface, the cross generation and the completion of the service opening of the management network. And the management channel of the gateway network element and the network element to be managed is communicated, and the network element to be managed is managed on the EMS.

As shown in fig. 2, in a specific embodiment, a management port of an NE1 of a gateway network element is directly connected to an ethernet card of an EMS network management system server through a network cable, the IP configuration of the management port of the gateway network element is (10.18.1.1/24) and the IP (10.18.1.100/24) of the EMS network management system are in the same subnet, the EMS network manager sends a heartbeat message to the IP of the gateway network element, the gateway network element responds to the heartbeat message of the network manager, and the EMS network manager receives the response heartbeat message of the gateway network element and then implements the network management of the gateway network element.

In this embodiment, the network element NE2 has already realized an ethernet channel with the management port of the gateway network element through steps S100 and S200, the management port IP is 10.18.1.2/24, and can normally communicate with the network management system, and the network element NE2 has already installed a pipe on the network management system.

In this embodiment, the main control CPU of the network element NE2 sends network parameter information to the FPGA PHY ports of the service boards at the physical positions where all the DCCR ports in the UP state are located according to a preset frequency, and the content of the network parameter is as shown in fig. 5. The IP address is the IP address 10.18.1.2 of the management port of NE2, and the subnet mask is the subnet mask 255.255.255.0 of the IP address of the management port. Since the NE2 is already installed, the EMS mark is 1, the KEY information of the network element reads KEY1-KEY3 information preset by the network element in production through an electromechanical interface, the DCCR port information is expressed in a quadruplet format of frame/slot/daughter card/port number, and the frame address, the slot address, the daughter card address and the physical port number of an SDH service board card of the DCCR port are filled. The payload content and data of the PPP protocol of the part of content are organized according to the TLV format, the network parameter information of the upper pipe network element flood is the content of TYPE 1 in the PPP TLV, and the state machine of the DCCR communication sub-module is shown in fig. 6. The main control CPU inserts the PPP data into the Ethernet encapsulation of the port of the main control CPU switch and the port of the FPGA. After receiving the data sent by the main control CPU, the SDH service board FPGA analyzes the VLAN ID to acquire the physical port information, peels off the Ethernet encapsulation head, and sends the PPP link data to the line.

In this embodiment, the FPGA of the NE3 network element SDH service board extracts, from the line, a message sent by the NE2 that has been loaded on the pipe through the DCCR channel, and adds the PPP protocol message to the ethernet packages of the service FPGA port and the main control switch port, and sends the ethernet packages to the main control CPU. The main control CPU determines that the EMS flag byte of the data packet is 1, reads that factory preset KEY1-KEY3 is 0xa,0xb,0x3 through the electromechanical interface, generates management IP 0x0a120103 through IP =0x0a120102 &0xfffffff00 + (0 xa < <16 > +0xb < < 8+3) & (0 xff), generates network parameters of the management IP 0x0a120103, generates network parameters of the management IP from NE2 mask 255.255.0, and generates network parameters of the management IP from NE3 learning NE2 in the same subnet as NE 2.

After the NE3 learns the management network parameters, the main control CPU sends the device board card information with PPP data TLV TYPE of 2 to the DCCR port which learns the NE2 network parameters. If multiple DCCR ports of NE3 receive the network parameter information of NE2, then a DCCR port of NE3 reporting message to NE2 is promoted according to the rule of slot position first and then miniport. The NE3 main control CPU adds the PPP message into the Ethernet encapsulation inside the network element. And the FPGA of the SDH service board card is responsible for sending PPP protocol message data to a line between the NE3 and the NE 2. And the FPGA of the NE2 network element SDH service board card extracts the PPP protocol message sent by the NE3 to be operated from the circuit, adds the Ethernet encapsulation of the service FPGA port and the main control switch port and sends the Ethernet encapsulation to the main control CPU. And the main control CPU judges the TYPE of TLV in the PPP protocol to be 2, identifies that the message content is NE3 network element equipment information message, and determines that the NE3 network element requests to install the tube. The path used by the message when the NE2 network element reports the network management is an Ethernet path between the network management and the NE 2.

After receiving the equipment information of the NE3 reported by the NE2 generation, the EMS network manager traverses the board card information of the whole network element, determines the calculation algorithm of the COST value of the interface, and selects two VC12 time slots with the minimum COST value in the network element as the binding time slots of the VCG port. Similarly, for the gateway network element NE1, two VC12 time slots with the minimum COST of COST are determined, except for the VC12 time slot occupied by the service and the VC12 time slot used when the management network is constructed with the network element NE 2. For the network element NE2, which establishes an intermediate network element of the management network for the gateway network elements NE1 and NE3, the two VC12 time slots with the smallest COST value, except the VC12 time slot occupied by the service and the two VC12 time slots used for establishing the management network with the gateway network element NE1, are determined in the same manner. The EMS network management directly configures and crosses interfaces under the NE1 and the NE2, sends the configuration of the NE3 to the NE2, and forwards the configuration to the NE3 through a DCC channel by the NE2, and the NE2 identifies whether the configuration is required to be forwarded by judging whether a target KEY value is matched with a self KEY value. After the NE1, the NE2 and the NE3 process the configuration issued by the EMS network management system, the Ethernet channel of the NE1 of the NE3 and the gateway network element of the new upper tube is realized, thereby getting through the management channel from the EMS network management system to the NE3 network element.

The embodiment of the present invention further provides an automatic network element installing system for an SDH device, which is characterized by comprising:

In some embodiments, the network element is further configured to:

performing message interaction with the upper-tube neighbor network element through a DCCR channel to determine an upper-tube generation network element and forwarding the equipment information of the network element by the upper-tube neighbor network element;

the network management system is used for:

and the network element to be managed is also used for receiving the corresponding network configuration information from the management agent network element to realize automatic management.

In some embodiments, the managed network element is further configured to flood the network parameter information of the managed network element itself to the neighbor network element through the DCCR channel;

the network element of the upper pipe is also used for:

In some embodiments, the network management system is further configured to:

It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices 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 performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable storage media, which may include computer readable storage media (or non-transitory media) and communication media (or transitory media).

The above embodiments are only specific embodiments of the present invention, but the scope of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the embodiments of the present invention, and these modifications or substitutions should be covered by the scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention shall be subject to the protection scope of the claims.

Claims

1. An automatic network element tube installing method for SDH equipment is characterized by comprising the following steps:

2. The method for automatically installing the network element on the SDH device according to claim 1, wherein the step of determining the unique physical interface in the network element to open the network element management port and the ethernet channel for data forwarding comprises the steps of:

3. The automatic pipe-loading method for network elements of SDH equipment according to claim 1, wherein said loaded network element interacts message with un-loaded network element through DCCR channel and communicates with network management system through ethernet channel to drive the un-loaded network element in the same subnet to automatically load pipe, comprising the steps of:

the network element to be uploaded determines a neighbor network element which is uploaded according to the network parameter information as an uploading generation network element and generates the network parameter information of the network element to be uploaded so that the network element to be uploaded and the uploading generation network element are in the same subnet, and

the network element to be managed sends the equipment information containing the network parameter information of the network element to be managed to the upper generation reporting network element through a DCCR channel;

the network management system determines network configuration information of each station between a gateway network element and the network element to be managed after receiving the equipment information of the network element to be managed forwarded by the upper generation reporting network element through an Ethernet channel and then sends the network configuration information to the corresponding network element, wherein the network configuration information is used for getting through the Ethernet channel between the network element to be managed and the gateway network element;

4. The method as claimed in claim 3, wherein the network management system determines the network configuration information of each site between the gateway network element and the network element to be managed after receiving the device information of the network element to be managed forwarded by the network element to be managed through the ethernet channel, and sends the network configuration information to the corresponding network element, and the method comprises the steps of:

5. The method as claimed in claim 4, wherein said selecting two VC12 timeslots as the timeslot bound to the VCG port of the network element to be managed according to the board information in the device information comprises:

6. An automatic network element tube installing system for SDH equipment is characterized by comprising:

and the managed network element in the network element is used for interacting messages with the unmanaged network element through the DCCR channel and communicating with the network management system through the Ethernet channel so as to drive the unmanaged network element in the same subnet to automatically manage.

7. The automatic network management system for SDH device network element according to claim 6, wherein said network element is further configured to:

8. The automatic network element management system for SDH devices according to claim 6, further comprising a network management system;

the upper network element is also used for flood-testing the network parameter information of the upper network element to the neighbor network element through the DCCR channel;

the network element to be uploaded is also used for determining a neighbor network element which is uploaded and is used as an uploading generation network element according to the network parameter information and generating the network parameter information of the network element to be uploaded so that the network element to be uploaded and the uploading generation network element are in the same subnet, and

sending the equipment information containing the self network parameter information to the upper generation network element through a DCCR channel;

the network management system is used for:

after receiving the device information of the network element to be managed forwarded by the upper reporting network element through an Ethernet channel, determining network configuration information of each station between a gateway network element and the network element to be managed and issuing the network configuration information to a corresponding network element, wherein the network configuration information is used for getting through the Ethernet channel between the network element to be managed and the gateway network element;

9. The automatic network management system for SDH device network element according to claim 8, wherein said network management system is further configured to:

10. The SDH device network element automatic pipe management system according to claim 9, wherein said network management system is further configured to: