CN105337754B - Data communication network opening method and system - Google Patents
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Abstract
The invention discloses a Data Communication Network (DCN) opening method, which comprises the following steps: the access network element and the non-access network element respectively generate network element management IP addresses according to preset management address generation rules, the network element management IP addresses are configured on a management loopback interface, and an OSPF routing example of the DCN is established; when the Ethernet interface state is determined to meet the preset condition, an Ethernet subinterface is established, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol; the EMS analyzes the network element information sent by the access network element, creates a logic network element corresponding to the non-access network element, and establishes connection between the non-access network element and the EMS. The invention also discloses a DCN opening system.
Description
Technical Field
The present invention relates to a related technology for Data Communication Network (DCN) provisioning in a Packet Transport Network (PTN), and in particular, to a DCN provisioning method and system.
Background
For a newly-opened PTN equipment network, after all the equipment physical layer connections are successful, a DCN needs to be opened at first, so that maintenance personnel can remotely and intensively deploy and monitor telecommunication services of each network Element (NE, Net Element) through an Element Management System (EMS) of a telecommunication operator. With the increasing scale of PTN device network deployment, the labor cost for opening the DCN network is also increasing.
Currently, the industry generally employs an Interior Gateway Protocol (IGP) routing instance, such as: DCN channels among network elements are automatically established by an Open Shortest Path First (OSPF) bootstrap method, so that the DCN opening efficiency is improved, but the current DCN network cannot really realize full-automatic opening. Each network element in the DCN network must have a unique Internet Protocol (IP) address, that is, a DCN management address of the network element, for communicating with the network management server, but at present, the DCN management address usually needs to be manually specified or allocated by depending on a special device.
The latest DCN solution of equipment manufacturers is added with the function of automatic generation of IP addresses, but the generation rule of the IP of each manufacturer lacks uniform planning, IP addresses of different equipment manufacturers may conflict, the requirement of automatic opening of a DCN network mixed with equipment of different equipment manufacturers cannot be met, and the flexible planning of the operator network is influenced. In addition, the network management system is usually deployed on a high-performance computer or other visual control systems, does not participate in IGP route learning of the device network, cannot directly sense device information in the network, and needs to create a logical network element in the network management system in a manual manner.
Disclosure of Invention
In view of this, embodiments of the present invention are expected to provide a DCN provisioning method and system, which can automatically provision a data communication network, and have high efficiency and high reliability.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a method for opening a data communication network DCN, which comprises the following steps:
an access network element and a non-access network element respectively generate a network element management Internet Protocol (IP) address according to a preset management address generation rule, the network element management IP address is configured to a management loopback interface, and an Open Shortest Path First (OSPF) routing example of a DCN is established;
when the Ethernet interface state is determined to meet the preset condition, an Ethernet subinterface is established, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol;
the EMS analyzes the network element information sent by the access network element, creates a logic network element corresponding to the non-access network element, and establishes connection between the non-access network element and the logic network element.
In the foregoing solution, before the access network element and the non-access network element generate the network element management IP address according to the preset management address generation rule, the method further includes: the access network element and the non-access network element establish a DCN network management instance and a management loopback interface.
In the foregoing solution, the management address generation rule includes: judging whether the network element supports the mapping of the network element identity NEID to the network element management IP address, if so, mapping the NEID to the network element management IP address; and if not, mapping the MAC address of the network element medium access control into the network element management IP address.
In the foregoing solution, the creating an ethernet subinterface and generating an IP address routing table of the DCN includes: creating a point-to-point type Ethernet subinterface, binding the Ethernet subinterface to a Virtual Local Area Network (VLAN), configuring the Ethernet subinterface to an OSPF routing protocol, and generating an IP address routing table of the DCN according to the OSPF routing protocol; and the IP address of the Ethernet subinterface adopts a mode of renting a DCN management address.
In the foregoing solution, after configuring the network element information to the OSPF routing protocol, the method further includes: configuring the route between the access network element and the EMS, reissuing the route to an OSPF routing protocol, and assigning the route from the EMS side to each network element.
In the above solution, before the EMS analyzes information of each network element sent by the access network element, the method further includes: and creating a logic network element corresponding to an access network element, establishing connection between EMS and the access network element, and sending information of each network element to the EMS by the access network element.
The embodiment of the present invention further provides a DCN provisioning system, where the system includes: an access network element, a non-access network element and an EMS; wherein,
the access network element and the non-access network element are respectively used for generating a network element management IP address according to a preset management address generation rule, configuring the network element management IP address to a management loopback interface, and creating an OSPF routing example of the DCN;
when the Ethernet interface state is determined to meet the preset condition, an Ethernet subinterface is established, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol;
the EMS is used for analyzing each network element information sent by the access network element, creating a logic network element corresponding to the non-access network element and establishing the connection between the non-access network element and the EMS.
In the above solution, the access network element and the non-access network element are further used to create a DCN network management instance and a management loopback interface, respectively.
In the foregoing solution, the management address generation rule includes: judging whether the network element supports NEID mapping to be a network element management IP address or not, if so, mapping the NEID to be the network element management IP address; and if not, mapping the network element MAC address into a network element management IP address.
In the above solution, the creating ethernet subinterfaces respectively for the access network element and the non-access network element, and the generating an IP address routing table of the DCN includes: the access network element and the non-access network element respectively establish point-to-point type Ethernet subinterfaces, bind the Ethernet subinterfaces to the VLAN, configure the Ethernet subinterfaces to an OSPF routing protocol, and generate an IP address routing table of the DCN according to the OSPF routing protocol; and the IP address of the Ethernet subinterface adopts a mode of renting a DCN management address.
In the above solution, the access network element is further configured to configure a route between the access network element and the EMS, and reissue the route to an OSPF routing protocol;
correspondingly, the system also comprises a gateway;
the EMS further for specifying a route for the EMS to the gateway;
the gateway is used for appointing the route from the gateway to each network element.
In the above solution, the EMS is further configured to create a logic network element corresponding to an access network element, and establish a connection between the EMS and the access network element;
the access network element is further configured to send information of each network element to the EMS.
In the DCN opening method and system provided by the embodiment of the present invention, the access network element and the non-access network element generate network element management IP addresses according to preset management address generation rules, respectively, configure the network element management IP addresses to the management loopback interfaces, and create an OSPF routing instance of the DCN; when the Ethernet interface state is determined to meet the preset condition, an Ethernet subinterface is established, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol; the EMS analyzes the network element information sent by the access network element, creates a logic network element corresponding to the non-access network element, and establishes connection between the non-access network element and the EMS. Therefore, the data communication network can be automatically opened, a large amount of labor and financial cost are saved, the user satisfaction is improved, and the method is high in efficiency and high in reliability.
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Fig. 1 is a schematic flow chart of a DCN activation method according to an embodiment of the present invention;
FIG. 2 is a network topology diagram of a DCN according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a second DCN activation method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a DCN provisioning system according to an embodiment of the present invention.
Detailed Description
In the embodiment of the invention, an access network element and a non-access network element respectively generate network element management IP addresses according to preset management address generation rules, the network element management IP addresses are configured on a management loopback interface, and an OSPF routing example of a DCN is established; when the Ethernet interface state is determined to meet the preset condition, an Ethernet subinterface is established, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol; EMS analyzes each network element information sent by the access network element, creates a logic network element corresponding to the non-access network element, and establishes connection between the non-access network element and the EMS;
the network element information comprises network element information of an access network element and a non-access network element.
Fig. 1 is a schematic flow diagram of a DCN provisioning method according to an embodiment of the present invention, and as shown in fig. 1, the DCN provisioning method according to the embodiment includes:
step 101: the access network element and the non-access network element respectively generate network element management IP addresses according to preset management address generation rules, the network element management IP addresses are configured on a management loopback interface, and an OSPF routing example of the DCN is established;
before this step, the method further comprises: the access network element and the non-access network element respectively create a DCN network management example and a management loopback interface;
here, the DCN network management instance refers to a dedicated DCN Virtual Route Forwarding (VRF) instance created for the DCN network, and may isolate a management route and a service route of the PTN network to avoid mutual interference.
Further, the managing the address generation rule includes: judging whether the network element supports the mapping of the Network Element Identity (NEID) to the network element management IP address, if so, mapping the NEID to the network element management IP address; if not, mapping a Media Access Control (MAC) address of the network element into an IP address of the network element management;
correspondingly, the step of generating the network element management IP address by the access network element and the non-access network element according to the preset management address generation rule respectively comprises: the access network element and the non-access network element respectively judge whether the access network element and the non-access network element support themselves to generate a network element management IP address, and if the access network element and the non-access network element support themselves, the self NEID is directly mapped into the network element management IP address; if not, mapping the MAC address of the user into a network element management IP address;
the NEID is a unique digital identifier of the network element, has a length of 4 bytes, and is written by each manufacturer when the equipment generates shipment, and the NEID definition rule in the embodiment of the present invention is as follows:
the NEID of the device is defined as 4 bytes and 32 BIT serial number, the NEID is currently defined to use 24 BITs, wherein BIT [ 20-27 ] is reserved, the first 4 BITs of the 1 st byte are used for identifying the type of the device, and the 20 BITs of the rest bytes are used for identifying the hardware serial number of the device. The NEID supports nonvolatile storage, and for the equipment with storage space on the backboard, the NEID requirement can be stored in the nonvolatile storage of the backboard; for the device with no storage space in the backboard, storing the device in the nonvolatile storage space of the device main control board;
the network element management IP address is planned into three sections from high order to low order according to bytes:
a first section: the equipment manufacturer number occupies the first byte of the IPv4 address, and operators appoint fixed numbers for different telecommunication equipment manufacturers according to network requirements;
a second section: the equipment model occupies 4 bits of the second byte of the IPv4 address, and equipment manufacturers distribute PTN equipment with different models;
a third section: the IP address sequence number occupies the lower four bits, the third byte and the fourth byte of the second byte of the IPv4 address. Theoretically, for the same PTN device of the same manufacturer, the network can support 0xfffff at most, that is, 1048575 devices, and can completely meet the network requirements of the telecom operator.
Further, when the network element supports the NEID to generate the network element management IP address, and the NEID is mapped to the network element management IP address, the network element management IP address is, according to the generation rule of the NEID:
network element management IP address first section: fixed values defined for telecommunication operators for equipment manufacturers;
network element management IP address second section: the equipment serial number in the NEID;
network element management IP address third section: a 20Bit valid device sequence number which is the lower order of the NEID;
when the network element does not support the NEID to generate the network element management IP address and the network element MAC address is mapped into the network element management IP address, the network element management IP address comprises the following generation rules according to the network element MAC address:
network element management IP address first section: fixed values defined by the telecommunications carrier for each equipment vendor;
network element management IP address second section: the fixed fill of the segment is 0 to distinguish the generation of NEID;
network element management IP address third section: ignoring the vendor number part of the MAC address, i.e. the first 3 bytes, only the last three bytes of the MAC address are used for mapping, the last 3 bytes representing the vendor number internal hardware number, which is unique within the vendor. Because each device usually needs to continuously occupy a plurality of MAC addresses, the last three bytes of the MAC addresses are shifted to the right by N bits according to the binary system, and then copied to the third section by 24 bits. The bit number N of the right shift is log2(M), and M is the shift number of the MAC address occupied by the device.
Further, an OSPF routing instance of the DCN is created, and then the management loopback interface can be configured to an OSPF routing protocol, and routing negotiation between network elements is started;
wherein the management loopback interface adopts 32-bit mask.
Step 102: when the Ethernet interface state is determined to meet the preset condition, an Ethernet subinterface is established, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol;
here, the preset condition means that the ethernet interface state is UP;
the method specifically comprises the following steps: an access Network element and a non-access Network element respectively detect the state of an Ethernet interface at regular time, when the state of the Ethernet interface is UP, a point-to-point type Ethernet subinterface is established, the Ethernet subinterface is bound to a Virtual Local Area Network (VLAN) and configured to an OSPF routing protocol, and an IP address routing table of DCN is generated according to the OSPF routing protocol, so that the routing between the Network elements can be communicated; the IP address of the Ethernet subinterface adopts a mode of renting a DCN management address;
configuring the network element information to an OSPF routing protocol so as to flood an extended Link State configuration (LSA) containing the network element information in a DCN domain when the OSPF routing protocol works normally, thereby enabling an access network element to obtain the network element information of each network element in the DCN domain in an OSPF database of the access network element;
wherein the network element information includes: the network management method comprises the following steps of (1) NEID, a network element MAC address, a network element management IPv4 address, a network element equipment manufacturer identifier and a network element type;
the OSPF routing protocol uses special type10 Opaque LSA to carry network element information for flooding; here, LSA ID is defined as 200.255.238.0, where 200 is opaque type and 255.238.0(ffee00) is instance information
The following network element information is carried in the Opaque LSA through TLV format:
network element equipment manufacturer identification: type (2): 0x 8000; length: identifying a name string length;
the network element model is as follows: type (2): 0x 8001; length: a model name string length;
network element MAC: type (2): 0x 8002; length: 6 bytes;
NEID: type (2): 0x 8003; length: 4 bytes;
NEIP IPv 4: type (2): 0x 8004; length: 4 bytes.
Further, after configuring the network element information to the OSPF routing protocol, the method further includes: configuring a route between an access network element and an EMS, reissuing the route to an OSPF routing protocol, and assigning the route from the EMS side to each network element; thus, the routing between the EMS and the whole PTN network element is opened;
wherein, the EMS side comprises an EMS and a gateway;
the routing from the designated EMS side to each network element comprises: and assigning the routing from the EMS to the gateway and the routing from the gateway to each network element.
Step 103: EMS analyzes each network element information sent by the access network element, creates a logic network element corresponding to the non-access network element, and establishes connection between the non-access network element and the EMS;
before this step, the method further comprises: creating a logic network element corresponding to an access network element, establishing connection between EMS and the access network element, and sending information of each network element to EMS by the access network element;
here, the establishing of the connection between the EMS and the access network element specifically includes: establishing TCP/IP connection between EMS and the access network element;
the step of the access network element sending the information of each network element to the EMS comprises the following steps: the access network element actively sends information of each network element of the whole DCN network to the EMS; or, the access network element receives the network element information request sent by the EMS, and sends the information of each network element of the whole DCN network to the EMS.
Further, the method specifically comprises the following steps: EMS analyzes each network element information sent by the access network element, obtains the network element management IP address, the network element type, the network element MAC address or the NEID of each network element, creates a logic network element corresponding to the non-access network element, and establishes the connection with the non-access network element according to the standard TCP/IP protocol, namely establishes the TCP/IP connection with the non-access network element; thus, the EMS may implement management of all network elements.
Fig. 2 is a network topology diagram of a DCN according to an embodiment of the present invention, and as shown in fig. 2, the network topology diagram includes five network elements, i.e., an EMS, a gateway, and NE a to E, where NE a is an access network element, and NE B to E are non-access network elements, and in practical applications, one or more access network elements may be used, and one or more non-access network elements may be used.
Fig. 3 is a schematic flow diagram of a second DCN provisioning method according to an embodiment of the present invention, and with reference to fig. 2 and fig. 3, the DCN provisioning method according to the embodiment of the present invention includes:
step 301: the access network element and the non-access network element respectively create a DCN network management example and a management loopback interface;
here, the DCN network management instance refers to a dedicated DCN VRF instance created for a DCN network, and can isolate a management route and a service route of a PTN network to avoid mutual interference;
in this embodiment, after the access network element and the non-access network element are powered on and run, a DCN VRF instance is automatically created, a management loopback interface loopback1023 is created, and the management loopback interface is bound to a DCN VPN.
Step 302: generating a network element management IP address according to a preset management address generation rule, configuring the network element management IP address to a management loopback interface, and creating an OSPF routing example of the DCN;
here, the management address generation rule includes: judging whether the network element supports NEID mapping to be a network element management IP address or not, if so, mapping the NEID to be the network element management IP address; if not, mapping the network element MAC address into a network element management IP address;
correspondingly, the step of generating the network element management IP address by the access network element and the non-access network element according to the preset management address generation rule respectively comprises: the access network element and the non-access network element respectively judge whether the access network element and the non-access network element support themselves to generate a network element management IP address, and if the access network element and the non-access network element support themselves, the NEID is directly mapped into the network element management IP address; if not, mapping the MAC address of the user into a network element management IP address;
in this embodiment, NE a to NE C support NEID mapping to network element management IP addresses, and NE D and NEE do not support NEID mapping to network element management IP addresses; the network element management IP first byte value allocated by the operator is 131 (decimal), the manufacturer allocates 4 bits of the identifier for NE a to be 0001 (binary), the identifiers for NE B to be 0002 (binary), each network element allocates 8 MAC addresses continuously, at this time, the network element management IP addresses generated by each network element are respectively:
NE A: 131.17.1.1, according to the NEID;
NE B: 131.33.1.5, according to the NEID;
NE C: 131.33.1.4, according to the NEID;
NE D: generating 131.0.36.32 according to the network element MAC address;
NE E: generating 131.0.38.32 according to the network element MAC address;
further, an OSPF routing instance of the DCN is created, and then the management loopback interface can be configured to an OSPF routing protocol, and routing negotiation between network elements is started;
wherein the management loopback interface adopts 32-bit mask.
Step 303: detecting the state of an Ethernet interface, judging whether the state of the Ethernet interface meets a preset condition, and executing a step 304 when the state of the Ethernet interface meets the preset condition; when the preset condition is not met, executing step 303;
here, the detecting the state of the ethernet interface is detecting the state of the ethernet interface at regular time;
the preset condition indicates that the state of the Ethernet interface is UP, and the condition that the Ethernet interface does not conform to the preset condition indicates that the state of the Ethernet interface is DOWN.
Step 304: creating an Ethernet subinterface and generating an IP address routing table of the DCN;
the method specifically comprises the following steps: the access network element and the non-access network element respectively establish point-to-point Ethernet subinterfaces, bind the Ethernet subinterfaces to a VLAN and configure the VLAN to an OSPF routing protocol, and generate an IP address routing table of a DCN according to the OSPF routing protocol so that routing between the network elements can be communicated; the IP address of the Ethernet subinterface adopts a mode of renting a DCN management address;
in this embodiment, when the ethernet interface state is UP, a 4094 point-to-point type ethernet subinterface is automatically created, and a VLAN 4094 is bound, which is specifically created as follows:
the Ethernet subinterfaces gei _1/1.4094, gei _1/3.4094 are created on NE A by default;
ethernet subinterfaces gei _1/3.4094, gei _1/2.4094 are created on NE B by default;
the Ethernet subinterface gei _1/2.4094 is created by default on NE C;
ethernet subinterfaces gei _1/1.4094, gei _1/2.4094 are created on NE D by default;
the Ethernet subinterface gei _1/2.4094 is created by default on NE E;
binding the created Ethernet subinterface to DCNVPN and configuring the Ethernet subinterface to an OSPF routing protocol, and performing routing learning by an access network element and a non-access network element according to the OSPF routing protocol to generate an IP address routing table of the DCN; thus, the route between network elements is enabled.
Step 305: configuring the network element information to an OSPF routing protocol to carry out DCN full-network flooding;
here, the access network element and the non-access network element respectively configure the network element information to an OSPF routing protocol, so that when the OSPF routing protocol normally works, an extended LSA containing the network element information is flooded in the DCN domain, and the access network element can obtain the network element information of each network element in the DCN domain in its own OSPF database;
wherein the network element information includes: the network management method comprises the following steps of (1) NEID, a network element MAC address, a network element management IPv4 address, a network element equipment manufacturer identifier and a network element type;
in this embodiment, the network element information configured by each network element to the OSPF routing protocol is as follows:
NE A：
and (3) manufacturer identification: XXX
Network element identification: NE A
Network element MAC address: 00d0.d001.1101
NEID：16.1.1.1
And (4) network element management IP: 131.17.1.1
NE B：
And (3) manufacturer identification: XXX
Network element identification: NE B
Network element MAC address: 00d0.d001.5101
NEID：32.1.1.5
And (4) network element management IP: 131.33.1.5
NE C：
And (3) manufacturer identification: XXX
Network element identification: NE C
Network element MAC address: 00d0.d001.4101
NEID：0.0.0.0
And (4) network element management IP: 131.33.1.4
NE D：
And (3) manufacturer identification: XXX
Network element identification: NE D
Network element MAC address: 00d0.d001.2101
NEID：0.0.0.0
And (4) network element management IP: 131.0.36.32
NE E：
And (3) manufacturer identification: XXX
Network element identification: NE E
Network element MAC address: 00d0.d001.3101
NEID：0.0.0.0
And (4) network element management IP: 131.0.38.32
Where a NEID of 0.0.0.0 indicates that this type of device does not yet support NEID, this value is invalid.
It should be noted that the sequence of the operations of step 305 and step 303-step 304 can be interchanged.
Step 306: configuring a route between an access network element and an EMS, reissuing the route to an OSPF routing protocol, and assigning the route from the EMS side to each network element;
here, configuring the route between the access network element and the EMS, redistributing the route to an OSPF routing protocol through OSPF routing redistribution, and assigning the route from the EMS side to each network element; thus, the routing between the EMS and the whole PTN network element is opened; wherein, the EMS side comprises an EMS and a gateway;
in this embodiment, the EMS is in the 10.8.0.0/255.255.0.0 network segment, and is not directly connected to the DCN network, and a static route needs to be added; configuring a static route with a target network segment of 10.8.0.0 mask 255.255.0.0 next hop of 194.194.194.1, and reissuing the static route to an OSPF routing protocol;
appointing routing from EMS and gateway equipment to each network element, wherein the first bytes of the network element management IP address generated by the network element are appointed, the routing configuration on the EMS is simplified, and the routing is appointed according to the following mode:
EMS: a destination network segment 131.0.0.0, a mask 255.0.0.0, and a next hop being a gateway device 10.8.63.144;
a gateway device: the destination network segment 131.0.0.0, the mask 255.0.0.0, and the next hop is the access port 194.194.194.123 of the access network element.
Step 307: creating a logic network element corresponding to an access network element, and establishing connection between EMS and the access network element;
here, the establishing of the connection between the EMS and the access network element specifically includes: and establishing TCP/IP connection between the EMS and the access network element.
Step 308: the access network element sends information of each network element to the EMS;
the method specifically comprises the following steps: the access network element actively sends the information of each network element of the whole DCN network to the EMS, or the access network element receives the network element information request sent by the EMS and sends the information of each network element of the whole DCN network to the EMS.
Step 309: EMS analyzes each network element information sent by the access network element, creates a logic network element corresponding to the non-access network element, and establishes connection between the non-access network element and the EMS;
the method specifically comprises the following steps: EMS analyzes each network element information sent by the access network element, obtains the network element management IP address, the network element type, the network element MAC address or the NEID of each network element, creates a logic network element corresponding to the non-access network element, and establishes the connection with the non-access network element according to the standard TCP/IP protocol, namely establishes the TCP/IP connection with the non-access network element; thus, the EMS may implement management of all network elements.
Step 310: and ending the processing flow.
Fig. 4 is a schematic structural diagram of a DCN provisioning system according to an embodiment of the present invention, and as shown in fig. 4, the DCN provisioning system according to the embodiment of the present invention includes: an access network element 41, a non-access network element 42, and an EMS 43; the number of the access network elements 41 may be one or more, and the number of the non-access network elements 42 may be one or more; wherein,
the access network element 41 and the non-access network element 42 are respectively configured to generate a network element management IP address according to a preset management address generation rule, configure the network element management IP address to a management loopback interface, and create an OSPF routing instance of the DCN;
when the Ethernet interface state is determined to meet the preset condition, an Ethernet subinterface is established, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol;
the EMS43 is configured to parse network element information sent by the access network element 41, create a logical network element corresponding to the non-access network element 42, and establish a connection between the non-access network element 42.
Further, the access network element 41 and the non-access network element 42 are further configured to create a DCN network management instance and a management loopback interface, respectively;
here, the DCN network management instance refers to a dedicated DCN VRF instance created for a DCN network, and can isolate a management route and a service route of a PTN network to avoid mutual interference.
Further, the managing the address generation rule includes: judging whether the network element supports NEID mapping to be a network element management IP address or not, if so, mapping the NEID to be the network element management IP address; if not, mapping the network element MAC address into a network element management IP address;
correspondingly, the generating network element management IP addresses by the access network element 41 and the non-access network element 42 according to the preset management address generation rule includes: the access network element 41 and the non-access network element 42 respectively judge whether the network element supports the NEID generation of the network element management IP address, and if the network element supports the NEID generation of the network element management IP address, the NEID is directly mapped into the network element management IP address; if not, mapping the MAC address of the user into a network element management IP address;
the access network element 41 and the non-access network element respectively create an OSPF routing instance of the DCN, and further configure the management loopback interface to an OSPF routing protocol, and start routing negotiation between network elements;
wherein the management loopback interface adopts 32-bit mask.
Further, the preset condition indicates that the state of the ethernet interface is UP;
the access network element 41 and the non-access network element 42 respectively create ethernet subinterfaces, and generating an IP address routing table of the DCN includes: the access network element 41 and the non-access network element 42 respectively create a point-to-point type ethernet subinterface, bind the ethernet subinterface to the VLAN, configure to the OSPF routing protocol, and generate an IP address routing table of the DCN according to the OSPF routing protocol; the IP address of the Ethernet subinterface adopts a mode of renting a DCN management address;
the access network element 41 and the non-access network element 42 respectively configure the network element information to the OSPF routing protocol, so that when the OSPF routing protocol normally works, the extended LSA containing the network element information is flooded in the DCN domain, and the access network element can obtain the network element information of each network element in the DCN domain in its own OSPF database;
wherein the network element information includes: the network management system comprises the following components of an NEID, a network element MAC address, a network element management IPv4 address, a network element equipment manufacturer identifier and a network element type.
Further, the access network element 41 is further configured to configure a route between the access network element and the EMS, and reissue the route to the OSPF routing protocol;
accordingly, the system further comprises a gateway 44;
the EMS43, further configured to specify a route for the EMS43 to the gateway 44;
the gateway 44 is configured to specify a route from the gateway 44 to each network element.
Further, the EMS43 is further configured to create a logical network element corresponding to the access network element 41, and establish a TCP/IP connection between the EMS43 and the access network element 41;
the access network element 41 is further configured to send information of each network element to the EMS 43.
Further, the EMS43 analyzes each network element information sent by the access network element 41, creates a logical network element corresponding to the non-access network element 42, and establishing a connection between the non-access network element 42 includes: the EMS43 analyzes each network element information sent by the access network element 41, obtains a network element management IP address, a network element type, a network element MAC address or a NEID of each network element, creates a logical network element corresponding to the non-access network element 42, and establishes a connection with the non-access network element 42 according to a standard TCP/IP protocol, that is, establishes a TCP/IP connection with the non-access network element 42; in this manner, the EMS43 may enable management of all network elements.
In this embodiment of the present invention, both the access network element 41 and the non-access network element 42 may be PTN devices.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A DCN opening method for a data communication network is characterized by comprising the following steps:
an access network element and a non-access network element respectively generate network element management Internet Protocol (IP) addresses according to preset management address generation rules, the network element management IP addresses are configured to a management loopback interface, an Open Shortest Path First (OSPF) routing instance of a DCN is established, and the management loopback interface is configured to the OSPF routing instance to start routing negotiation between the network elements;
the access network element and the non-access network element respectively establish an Ethernet subinterface when the Ethernet interface state is determined to meet the preset condition, an IP address routing table of the DCN is generated, and the network element information is configured to an OSPF routing protocol so that the OSPF routing protocol works normally;
the EMS analyzes each network element information which is sent by the access network element and is obtained under the condition of starting routing negotiation and normal work of a routing protocol, creates a logic network element corresponding to the non-access network element and establishes connection between the non-access network element and the EMS;
the management address generation rule includes: judging whether the network element supports the mapping of the network element identity NEID to the network element management IP address, if so, mapping the NEID to the network element management IP address; if not, mapping the MAC address of the network element medium access control into a network element management IP address;
the preset conditions include: the ethernet interface state is UP.
2. The method of claim 1, wherein before the access network element and the non-access network element generate the network element management IP addresses according to preset management address generation rules, the method further comprises: the access network element and the non-access network element establish a DCN network management instance and a management loopback interface.
3. The method according to claim 1 or 2, wherein the creating the ethernet subinterface and the generating the IP address routing table of the DCN comprises: creating a point-to-point type Ethernet subinterface, binding the Ethernet subinterface to a Virtual Local Area Network (VLAN), configuring the Ethernet subinterface to an OSPF routing protocol, and generating an IP address routing table of the DCN according to the OSPF routing protocol; and the IP address of the Ethernet subinterface adopts a mode of renting a DCN management address.
4. The method according to claim 1 or 2, wherein after configuring the network element information to the OSPF routing protocol, the method further comprises: configuring a route between an access network element and an Element Management System (EMS), re-issuing the route to an OSPF (open shortest path first) routing protocol, and designating the route from the EMS side to each network element.
5. The method according to claim 1 or 2, wherein before the EMS analyzes information of each network element sent by the access network element and obtained under the condition that the routing negotiation and routing protocol are started to work normally, the method further comprises: and establishing a logic network element corresponding to an access network element, establishing connection between an Element Management System (EMS) and the access network element, and transmitting each network element information to the EMS by the access network element.
6. A DCN provisioning system for a data communication network, said system comprising: an access network element, a non-access network element and an element management system EMS; wherein,
the access network element and the non-access network element are respectively used for generating a network element management IP address according to a preset management address generation rule, configuring the network element management IP address to a management loopback interface, and creating an OSPF routing instance of the DCN, wherein the management loopback interface is configured to the OSPF routing instance to start routing negotiation between the network elements;
the access network element and the non-access network element are respectively used for creating an Ethernet subinterface when the Ethernet interface state is determined to meet the preset condition, generating an IP address routing table of the DCN, and configuring the network element information to an OSPF routing protocol so as to enable the OSPF routing protocol to work normally;
the EMS is used for analyzing each network element information which is sent by the access network element and is obtained under the condition of starting routing negotiation and normal work of a routing protocol, creating a logic network element corresponding to the non-access network element and establishing connection between the non-access network element and the EMS;
the management address generation rule includes: judging whether the network element supports the mapping of the network element identity NEID to the network element management IP address, if so, mapping the NEID to the network element management IP address; if not, mapping the MAC address of the network element medium access control into a network element management IP address;
the preset conditions include: the ethernet interface state is UP.
7. The system of claim 6, wherein the access network element and the non-access network element are further configured to create a DCN network management instance and a management loopback interface, respectively.
8. The system according to claim 6 or 7, wherein the access network element and the non-access network element are further configured to create an ethernet subinterface and generate an IP address routing table of the DCN when it is determined that the ethernet interface status meets the preset condition, respectively, and include: the access network element and the non-access network element respectively establish point-to-point type Ethernet subinterfaces, bind the Ethernet subinterfaces to the VLAN, configure the Ethernet subinterfaces to an OSPF routing protocol, and generate an IP address routing table of the DCN according to the OSPF routing protocol; and the IP address of the Ethernet subinterface adopts a mode of renting a DCN management address.
9. The system according to claim 6 or 7, wherein said access network element is further configured to configure a route between the access network element and the EMS, and to reissue said route to the OSPF routing protocol;
correspondingly, the system also comprises a gateway;
the EMS further for specifying a route for the EMS to the gateway;
the gateway is used for appointing the route from the gateway to each network element.
10. The system according to claim 6 or 7, wherein the EMS is further configured to create a logical network element corresponding to an access network element, and establish a connection between the EMS and the access network element;
the access network element is further configured to send information of each network element to the EMS.
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| CN201410387464.2A CN105337754B (en) | 2014-08-07 | 2014-08-07 | Data communication network opening method and system |
| PCT/CN2014/090462 WO2016019645A1 (en) | 2014-08-07 | 2014-11-06 | Method and system for turning on a data communication network, and storage medium |
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| CN201410387464.2A CN105337754B (en) | 2014-08-07 | 2014-08-07 | Data communication network opening method and system |
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| CN105721324A (en) * | 2016-05-04 | 2016-06-29 | 重庆金美通信有限责任公司 | Routing protocol self-adaption method |
| CN107769939B (en) * | 2016-08-17 | 2020-03-20 | 华为技术有限公司 | Network element management method, network management, gateway network element and system in data communication network |
| CN106972884A (en) * | 2017-04-12 | 2017-07-21 | 东华大学 | A kind of DCN tests and guard method based on optical transfer network |
| CN108134705B (en) * | 2017-12-29 | 2021-07-09 | 北京华为数字技术有限公司 | DCN management method, network element and computer storage medium |
| CN110784329B (en) * | 2018-07-30 | 2022-04-12 | 成都鼎桥通信技术有限公司 | Method and system for routing terminal equipment of LTE network |
| CN110351141B (en) * | 2019-07-12 | 2022-05-17 | Ut斯达康通讯有限公司 | Flexe interface management method, device and network element |
| CN113726916B (en) * | 2020-05-25 | 2023-02-03 | 华为技术有限公司 | Method for configuring IP address of network equipment and related equipment |
| CN112333014B (en) * | 2020-10-26 | 2022-08-02 | 中国联合网络通信集团有限公司 | Device management method and communication apparatus |
| CN114553831B (en) * | 2020-11-25 | 2023-09-08 | 华为技术有限公司 | Method and system related to sending management IP address |
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| US7187653B2 (en) * | 2002-12-13 | 2007-03-06 | Bellsouth Intellectual Property Corporation | Method and system for performing a logical loopback test |
| CN101141281A (en) * | 2006-09-06 | 2008-03-12 | 中兴通讯股份有限公司 | Network management and non-gateway network element communicating method |
| CN101984581A (en) * | 2010-11-04 | 2011-03-09 | 中兴通讯股份有限公司 | Method and system for opening data communication network |
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| US7187653B2 (en) * | 2002-12-13 | 2007-03-06 | Bellsouth Intellectual Property Corporation | Method and system for performing a logical loopback test |
| CN101141281A (en) * | 2006-09-06 | 2008-03-12 | 中兴通讯股份有限公司 | Network management and non-gateway network element communicating method |
| CN101984581A (en) * | 2010-11-04 | 2011-03-09 | 中兴通讯股份有限公司 | Method and system for opening data communication network |
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