CN105812168B - A kind of method and apparatus for drawing network topological diagram - Google Patents
A kind of method and apparatus for drawing network topological diagram Download PDFInfo
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Abstract
The invention discloses a kind of method and apparatus for drawing network topological diagram.Method of the invention is applied to the environment of Simple Network Management Protocol SNMP network management operation；The described method includes: each network node for target network configures a management information bank MIB；It is accessed by application layer protocol to each management information bank MIB, acquires Intermediate System-to-Intermediate System IS-IS configuration data information；The IS-IS network topological diagram of each network node of the target network is drawn according to the collected IS-IS configuration data information.The present invention is realizes that Intermediate System to Intermediate System identification based on SNMP, Topology Discovery, fault location provide implementation, it can be found automatically according to IS-IS network configuration cases and generate IS-IS topological diagram, to provide visualization IS-IS information, the visualization for realizing Intermediate System to Intermediate System management, provides a kind of effective management means for network management operation.
Description
Technical field
The present invention relates to frequent IS-IS (Intermediate System to is used in current network
Intermediate System Routing Protocol: Intermediate System-to-Intermediate System) routing protocol management skill
Art, in particular to a kind of method and apparatus for drawing IS-IS network topological diagram.
Background technique
IS-IS routing protocol is a kind of Interior Gateway Protocol (Interior Gateway Protocols, IGP),
Since it supports VLSM (Variable Length Subnet Masking: variable length subnet mask) and fast convergence, have
Scalability can support large scale network, such as can support more than 1000 routers, therefore be that telecom operators are universal
One of Interior Gateway Protocol of use.
IS-IS network is designed to provide the routing in domain or in a region.IS-IS network contain terminal system,
Intermediate system, region (Area) and domain (Domain).Terminal system refers to that user equipment, intermediate system refer to router.Router shape
At local group be referred to as " region ", multiple regions form one " domain ".IS-IS routing uses two layers of routing architecture.Level 1
Router only knows the topology in their one's respective area L1, including all router and host, without knowing other than L1 layer region
Router and destination.All flows for going to other regions are forwarded to one in one's respective area by 1 router of Level
Platform Level 1-2 router, then the routing of the Level 1-2 in L2 layer region is forwarded the traffic to by the Level 1-2 router
Device, then 2 router of Level is transmitted to by the Level 1-2 router in L2 layer region, complete data forwarding.
Traditional network management is by ifTable and ipAddrTable in management information bank RFC-1213 and factory
Family privately owned SNMP (Simple Network Management Protocol: Simple Network Management Protocol) information carries out pipe
Reason, biases toward physical layer, lacks the means for Intermediate System to Intermediate System management.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of method and apparatus for drawing network topological diagram, with
The visualization for realizing Intermediate System to Intermediate System management, provides effective management means for network management operation.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The present invention provides a kind of methods for drawing network topological diagram, are applied to Simple Network Management Protocol SNMP network pipe
Manage the environment of operation；This method comprises:
A management information bank MIB is configured for each network node of target network；
It is accessed by application layer protocol to each management information bank MIB, acquires Intermediate System-to-Intermediate System
IS-IS configuration data information；
The IS- of each network node of the target network is drawn according to the collected IS-IS configuration data information
IS network topological diagram.
Wherein, described to be accessed by application layer protocol to each management information bank MIB, acquisition IS-IS configuration
Data information specifically includes:
The management information bank MIB acquisition IS-IS example information table configured on each network node；
Judge whether the IS-IS example information table collects data, if it is not, termination；
If so, then acquiring IS-IS configuration data information, the IS-IS configuration data packet to each network node
It includes: configuration domain addresses table, is-is interface circuit table, is-is neighbor relation table, is-is neighbor relation domain address table and IS-IS
Neighborhood IP address table.
Wherein, each network that the target network is drawn according to the collected IS-IS configuration data information
The IS-IS network topological diagram of node, specifically includes:
General bureau's topological diagram is created according to the IS-IS example information table in the collected IS-IS configuration data information, is sentenced
The IS-IS device type of each network node of disconnected target network；
According to the device type of network node and IS-IS configuration domain addresses table and is-is interface circuit table described total
L1 layer region figure or L2 layer region figure are created in office's topological diagram, and establishes the equipment drawing of the network node in these administrative division maps
Mark；
The neighborhood that the network node is obtained according to the is-is neighbor relation table, passes through every neighborhood
Is-is neighbor relations I P address table obtains the IP address of the neighbours of this neighborhood, determines that this neighbour is closed by IP address
The neighbor device of system, then to this neighborhood according to is-is neighbor relation domain address table in corresponding L1 layer region figure or L2
Layer region figure creates the icon of the neighbor device；And
The line between the appliance icon of the network node and neighbor device icon is established, the network node is completed
The drafting of IS-IS network topological diagram.
Further, described that domain addresses table and is-is interface are configured according to the device type and IS-IS of network node
Circuit table creates L1 layer region figure or L2 layer region figure in general bureau's topological diagram, and the network is established in these administrative division maps
The appliance icon of node, specifically includes:
Whether the device type for judging network node is the routing device of L2 layer region or is L1 layer region and L2 floor area
It is responsible for the routing device of forwarding between domain, L2 layer region figure is if it is created below general bureau's topological diagram of the network node,
And the icon of the network node is established in the L2 layer region figure, while the expression L2 floor area is established in general bureau's topological diagram
The icon of domain figure；
Whether the device type for judging the network node is the routing device of L1 layer region or is L1 layer region and L2 layers
It is responsible for the routing device of forwarding between region, L1 layer region is if it is created below general bureau's topological diagram of the network node
Figure, and when create the L1 layer region figure, according to the every of IS-IS configuration domain addresses table and is-is interface circuit table
Row data are recycled, and are one L1 layer region figure of each domain addresses creation in general bureau's topological diagram, and in the L1 floor area
The icon of the network equipment is established in the figure of domain, while the icon for indicating the L1 layer region figure is established in general bureau's topological diagram.
Further, the neighborhood that the network node is obtained according to the is-is neighbor relation table, to every
Neighborhood obtains the IP address of the neighbours of this neighborhood by is-is neighbor relations I P address table, passes through IP address
Determine the neighbor device of this neighborhood, then to this neighborhood according to is-is neighbor relation domain address table corresponding
L1 layer region figure or L2 layer region figure create the icon of the neighbor device, and, establish the appliance icon of the network node
With the line between neighbor device icon, the drafting of the IS-IS network topological diagram of the network node is completed, is specifically included:
The neighborhood of the network node is judged according to the is-is neighbor relation table；
It is adjacent by the is-is neighbor relation domain address table lookup if neighborhood region is L1 layer region
The region for occupying equipment, in the built-in vertical equipment room line in the region of neighbor device；
If neighborhood region is L2 layer region, the network node directly is established in the L2 layer region
Line between appliance icon and neighbor device icon；
If neighborhood region is L1 layer region and L2 layer region, by the is-is neighbor relation domain
The region that location table searches neighbor device stops handling if do not found；
It such as finds, then establishes the icon of L2 layer region and the figure of L1 layer region in general bureau's topological diagram of the network node
Target line；
The region where the neighbor device of the network node is further judged according to the is-is neighbor relation table,
If it is L1 layer region, then the company with L1 layer region icon is established by the network node in L2 layer region figure
Line；If not L1 layer region, then established and L1 layer region figure in L2 layer region figure by the neighbor device of the network node
Target line；Also, if the network node establishes appliance icon in L1 layer region figure, in the L1 layer region figure
Line between the middle appliance icon for establishing the network node and neighbor device icon.
The present invention also provides a kind of devices for drawing network topological diagram, are applied to Simple Network Management Protocol SNMP network
The environment of management operating；The device includes:
Information configuration unit, for configuring a management information bank MIB for each network node of target network；
Acquisition unit acquires intermediate system for accessing by application layer protocol to each management information bank MIB
It unites to intermediate system IS-IS configuration data information；
Drawing unit, for drawing each of described target network according to the collected IS-IS configuration data information
The IS-IS network topological diagram of network node.
Wherein, the acquisition unit specifically includes:
Example acquisition module, the management information bank MIB acquisition IS-IS example information configured on each network node
Table；
Data judgment module, for judging whether the IS-IS example information table collects data, if it is not, eventually
Only handle；
Acquisition module, for acquiring IS- to each network node when the IS-IS example information table collects data
IS configuration data information, the IS-IS configuration data information include: configuration domain addresses table, is-is interface circuit table, IS-IS neighbour
Occupy relation table, is-is neighbor relation domain address table and is-is neighbor relations I P address table.
Wherein, the drawing unit is specifically used for,
General bureau's topological diagram is created according to the IS-IS example information table in the collected IS-IS configuration data information, is sentenced
The IS-IS device type of each network node of disconnected target network；
According to the device type of network node and IS-IS configuration domain addresses table and is-is interface circuit table described total
L1 layer region figure or L2 layer region figure are created in office's topological diagram, and establishes the equipment drawing of the network node in these administrative division maps
Mark；
The neighborhood that the network node is obtained according to the is-is neighbor relation table, passes through every neighborhood
Is-is neighbor relations I P address table obtains the IP address of the neighbours of this neighborhood, determines that this neighbour is closed by IP address
The neighbor device of system, then to this neighborhood according to is-is neighbor relation domain address table in corresponding L1 layer region figure or L2
Layer region figure creates the icon of the neighbor device；And
The line between the appliance icon of the network node and neighbor device icon is established, the network node is completed
The drafting of IS-IS network topological diagram.
Further, the drawing unit specifically includes:
First judgment module, for judging whether the device type of network node is the routing device of L2 layer region or is
It is responsible for the routing device of forwarding between L1 layer region and L2 layer region, if it is below general bureau's topological diagram of the network node
L2 layer region figure is created, and establishes the icon of the network node in the L2 layer region figure, while in general bureau's topological diagram
Establish the icon for indicating the L2 layer region figure；
Second judgment module, for judge the network node device type whether be L1 layer region routing device or
It is responsible for the routing device of forwarding between L1 layer region and L2 layer region, if it is under general bureau's topological diagram of the network node
Face creates L1 layer region figure, and when creating the L1 layer region figure, configures domain addresses table and IS-IS according to the IS-IS
The each row of data of interface circuit table is recycled, and is that each domain addresses creates a L1 layer region in general bureau's topological diagram
Scheme, and establish the icon of the network equipment in the L1 layer region figure, while establishing the expression L1 in general bureau's topological diagram
The icon of layer region figure.
Further, the drawing unit is specifically used for,
The neighborhood of the network node is judged according to the is-is neighbor relation table；
It is adjacent by the is-is neighbor relation domain address table lookup if neighborhood region is L1 layer region
The region for occupying equipment, in the built-in vertical equipment room line in the region of neighbor device；
If neighborhood region is L2 layer region, the network node directly is established in the L2 layer region
Line between appliance icon and neighbor device icon；
If neighborhood region is L1 layer region and L2 layer region, by the is-is neighbor relation domain
The region that location table searches neighbor device stops handling if do not found；
It such as finds, then establishes the icon of L2 layer region and the figure of L1 layer region in general bureau's topological diagram of the network node
Target line；
The region where the neighbor device of the network node is further judged according to the is-is neighbor relation table,
If it is L1 layer region, then the company with L1 layer region icon is established by the network node in L2 layer region figure
Line；If not L1 layer region, then established and L1 layer region figure in L2 layer region figure by the neighbor device of the network node
Target line；Also, if the network node establishes appliance icon in L1 layer region figure, in the L1 layer region figure
Line between the middle appliance icon for establishing the network node and neighbor device icon.
Beneficial effects of the present invention: a kind of method and apparatus for drawing network topological diagram provided by the invention, to realize base
Implementation is provided in the Intermediate System to Intermediate System identification of SNMP, Topology Discovery, fault location, by establishing SNMP network management fortune
Capable environment acquires IS-IS configuration data information, so to the management information bank MIB of each network node configuration of target network
The result of acquisition is handled afterwards, completes the drafting of the IS-IS network topological diagram of target network；The present invention can be according to IS-
IS network configuration cases find automatically and generate IS-IS topological diagram, to provide visualization IS-IS information, realize Intermediate System to Intermediate System
The visualization of management promotes O&M efficiency, provides a kind of effective management means for network management operation.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of method for drawing network topological diagram provided by the invention；
Fig. 2 is the flow diagram of present invention acquisition IS-IS configuration data information；
Fig. 3 is the structural schematic diagram for the ISISInfo object that the present invention is formed according to the acquisition information of each network node；
Fig. 4 is the drafting flow diagram of IS-IS network topological diagram of the present invention；
Fig. 5 is a kind of structural schematic diagram for the device for drawing network topological diagram of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment to the present invention
Technical solution further elaborate.
For the visualization for realizing Intermediate System to Intermediate System management, a kind of method for drawing network topological diagram provided by the invention, the party
Method is applied to the environment of Simple Network Management Protocol SNMP network management operation.
Wherein, Simple Network Management Protocol SNMP is application layer protocol, is a part of TCP/IP protocol suite, passes through use
User data packet protocol (UDP) operates.SNMP is made of the standard of one group of network management, includes an application layer protocol
(Application Layer Protocol), database model (Database Schema) and one group of data object, such as net
Network equipment and physical link etc..The agreement can support Network Management System, whether to monitor the equipment being connected on network
Have and any causes the case where managing concern.
It should be noted that needing to establish SNMP network management operation before executing following each steps of the invention
Environment, but be not that all must be set up running environment before configuring or draw every time.
As shown in Figure 1, for a kind of flow diagram for the method for drawing network topological diagram provided in this embodiment, it is main to wrap
Include following steps:
Step 101, a management information bank MIB is configured for each network node of target network.
Management information bank MIB (Management Information Base), is accessed by Simple Network Management Protocol SNMP
Management object database, it includes that can act on behalf of the variable that be configured by the snmp management of the network equipment.Management information
Structure SMI (Structure of Management Information) can be visited for defining by Simple Network Management Protocol
The rule for the object asked.SMI is defined on title or expression of the data type and Internet resources used in MIB in MIB.
ISIS-MIB is exactly a specific MIB, and equipment can support many specific MIB, be respectively used to obtain different configurations
Information.Management information bank MIB specifies the maintained variable of network element, can be managed the letter of process inquiry and setting
Breath.
In the present invention, the management information bank MIB configured on each network node of target network is included at least: IS-
IS example information table (isisSysTable), IS-IS configure domain addresses table (isisManAreaAddrTable), is-is interface
Circuit table (isisCircTable), is-is neighbor relation table (isisISAdjTable), is-is neighbor relation domain address table
(isisISAdjAreaAddrTable) and is-is neighbor relations I P address table (isisISAdjIPAddrTable).
Wherein, is-is interface circuit table isisCircTable according to isisISAdjTable for establishing between equipment
Line when judge interface used in the network equipment of this line, that is, isisCircTable table
IsisCircIfIndex, this value are exactly the index of equipment interface.
Wherein, is-is neighbor relation domain address table isisISAdjAreaAddrTable is used in basis
IP used in the neighbor device of this line is judged when the line that isisISAdjTable is established between equipment, that is,
The isisISAdjIPAddress of isisISAdjAreaAddrTable table, further according to the ipAddrTable table number of neighbor device
According to it is known that this ip corresponding interface, can thus find the interface of this line opposite end.
Step 102, it is accessed by application layer protocol to each management information bank MIB, acquisition IS-IS configuration data letter
Breath.
In the present invention, step 102 specifically includes:
The management information bank MIB acquisition IS-IS example information table isisSysTable configured on each network node；
Judge whether IS-IS example information table isisSysTable collects data, if it is not, termination；Such as
Fruit has, then acquires IS-IS configuration data information to each network node, which includes: configuration domain addresses
Table isisManAreaAddrTable, is-is interface circuit table isisCircTable, is-is neighbor relation table
IsisISAdjTable, is-is neighbor relation domain address table isisISAdjAreaAddrTable and is-is neighbor relations I P
Location table isisISAdjIPAddrTable.
In practical applications, the IS-IS configuration data information that can be acquired according to each network node forms IS-IS example
Example is packaged into an ISISInfo object by an example in information table.
Wherein, IS-IS configuration data refers to the data of collected above-mentioned each table from equipment by SNMP, ISISInfo
Object, which refers to, is packaged together these data in program, a data structure convenient to use.
It is described in detail below with reference to process of the Fig. 2 to acquisition IS-IS configuration data information of the invention, such as Fig. 2 institute
Show, includes the following steps:
Step 201 and step 202: by that whether can be collected from collected network node (such as routing device)
The data of isisSysTable table judge whether the network node is configured with Intermediate System-Intermediate System, to not acquiring
The network node of isisSysTable table data no longer does subsequent acquisition operation.
Step 203~step 207: IS-IS is acquired respectively and configures domain addresses table isisManAreaAddrTable, IS-IS
Interface circuit table isisCircTable, is-is neighbor relation table isisISAdjTable, is-is neighbor relation domain address table
IsisISAdjAreaAddrTable and is-is neighbor relations I P address table isisISAdjIPAddrTable, these information are
IS-IS topology is presented and provides foundation.
Step 208: an ISISInfo object is formed according to the acquisition information of each network node.
The structure of the ISISInfo object of formation is as shown in figure 3, each ISISInfo object includes such as following table information :-
isisSysTable、-isisManAreaAddrTable、-isisCircTable、-isisISAdjTable、-
isisISAdjAreaAddrTable、-isisISAdjIPAddrTable。
Step 103, each network node of the target network is drawn according to collected IS-IS configuration data information
IS-IS network topological diagram.
In the present invention, step 103 specifically includes:
General bureau is created according to the IS-IS example information table isisSysTable in collected IS-IS configuration data information
Topological diagram judges the IS-IS device type of each network node of target network；
Domain addresses table isisManAreaAddrTable and IS- is configured according to the device type of network node and IS-IS
IS interface circuit table isisCircTable creates L1 layer region figure or L2 layer region figure in general bureau's topological diagram, and in these areas
The appliance icon of the network node is established in the figure of domain；
The neighborhood that the network node is obtained according to is-is neighbor relation table isisISAdjTable, to every neighbours
Relationship is with obtaining the IP of the neighbours of this neighborhood by is-is neighbor relations I P address table isisISAdjIPAddrTable
Location determines the neighbor device of this neighborhood by IP address, then according to is-is neighbor relation domain to this neighborhood
Location table isisISAdjAreaAddrTable creates the figure of the neighbor device in corresponding L1 layer region figure or L2 layer region figure
Mark；And
The line between the appliance icon of the network node and neighbor device icon is established, the IS- of the network node is completed
The drafting of IS network topological diagram.
Wherein, device type, which refers to, judges equipment by the isisSysType field of example information table isisSysTable
It is (1) level1IS, it is any in level2IS (2), level1l2IS (3).Domain addresses refers to
IsisManAreaAddr field in isisManAreaAddrTable table, shows device configuration domain addresses.Neighborhood can
Be it is trans-regional, be also possible in the same domain.The relationship of this three is: the equipment of level1IS (1) type only has one
A address field, and neighbours are also this domains；The equipment of level2IS (2) type has multiple address fields, and neighborhood is all
It is between level2IS (2) and level1l2IS (3) equipment；The equipment of level1l2IS (3) type has multiple addresses
Domain, neighborhood include certainly between level1IS (1) type equipment, also certainly comprising and level2IS (2) or
Between level1l2IS (3) two types equipment (can also be simultaneously).
On the basis of above-mentioned embodiment illustrated in fig. 2, in step 103 " according to the device type and IS- of network node
IS configures domain addresses table isisManAreaAddrTable and is-is interface circuit table isisCircTable in general bureau's topological diagram
Middle creation L1 layer region figure or L2 layer region figure, and the appliance icon of the network node is established in these administrative division maps ", it is specific to wrap
It includes:
Whether the device type for judging network node is the routing device of L2 layer region or is L1 layer region and L2 floor area
It is responsible for the routing device of forwarding between domain, L2 layer region figure is if it is created below general bureau's topological diagram of the network node,
And the icon of the network node is established in the L2 layer region figure, while the expression L2 layer region figure is established in general bureau's topological diagram
Icon；
Whether the device type for judging the network node is the routing device of L1 layer region or is L1 layer region and L2 layers
It is responsible for the routing device of forwarding between region, L1 layer region is if it is created below general bureau's topological diagram of the network node
Figure, and when creating L1 layer region figure, domain addresses table isisManAreaAddrTable and IS-IS is configured according to IS-IS and is connect
The each row of data of mouth circuit table isisCircTable is recycled, and is that each domain addresses creates a L1 in general bureau's topological diagram
Layer region figure, and establish in the L1 layer region figure icon of the network equipment, while establishing in general bureau's topological diagram that indicate should
The icon of L1 layer region figure.
On the basis of above-mentioned embodiment illustrated in fig. 2, in step 103 " according to is-is neighbor relation table
IsisISAdjTable obtains the neighborhood of the network node, passes through is-is neighbor relations I P address to every neighborhood
Table isisISAdjIPAddrTable obtains the IP address of the neighbours of this neighborhood, determines that this neighbour is closed by IP address
The neighbor device of system, then to this neighborhood according to is-is neighbor relation domain address table isisISAdjAreaAddrTable
The icon of the neighbor device is created in corresponding L1 layer region figure or L2 layer region figure, and, establish setting for the network node
Line between standby icon and neighbor device icon, completes the drafting of the IS-IS network topological diagram of the network node ", it is specific to wrap
It includes:
The neighborhood of the network node is judged according to is-is neighbor relation table isisISAdjTable；
If neighborhood region is L1 layer region, pass through is-is neighbor relation domain address table
IsisISAdjAreaAddrTable searches the region of neighbor device, in the built-in vertical equipment room line in the region of neighbor device；
If neighborhood region is L2 layer region, setting for the network node directly is established in the L2 layer region
Line between standby icon and neighbor device icon；
If neighborhood region is L1 layer region and L2 layer region, pass through is-is neighbor relation domain address table
The region that isisISAdjAreaAddrTable searches neighbor device stops handling if do not found；
It such as finds, then establishes the icon of L2 layer region and the icon of L1 layer region in general bureau's topological diagram of the network node
Line；
Where further judging the neighbor device of the network node according to is-is neighbor relation table isisISAdjTable
Region,
If it is L1 layer region, then the company with L1 layer region icon is established by the network node in L2 layer region figure
Line；If not L1 layer region, then established and L1 layer region figure in L2 layer region figure by the neighbor device of the network node
Target line；Also, if the network node establishes appliance icon in L1 layer region figure, in the L1 layer region figure
Line between the middle appliance icon for establishing the network node and neighbor device icon.
It is described in detail below with reference to drafting process of the Fig. 4 to IS-IS network topological diagram of the invention, as shown in figure 4,
Include the following steps:
Step 401, it is accessed by application layer protocol to each management information bank MIB, collects acquisition process
As a result, obtain the ISISInfo object of certain network node (such as routing device), into following process flow:
Step 402, isisSysTable table data are traversed, each row of data indicates an ISIS example
(isisSysInstance), general bureau's topological diagram is created for each example isisSysInstance.
For example, the title of general bureau's topological diagram can be ISIS.+isisSysInstance+.map.
Following processing step is carried out both for single ISIS example (isisSysInstance).
Step 403: judge whether isisSysType is level2IS (2) or level1L2IS (3), if it is into
Enter step 404, otherwise enters step 405.
Wherein, isisSysType is the field of isisSysTable table, for identifying IS-IS equipment at this
Character types in isisSysInstance.According to the description in ISIS-MIB to isisSysType field value, value can be with
It is: level1IS (1), level2IS (2) or level1L2IS (3).Level1IS (1) refers to that the routing of L1 layer region is set
Standby, level2IS (2) refers to that the routing device of L2 layer region, level1L2IS (3) refer between L1 layer region and L2 layer region
It is responsible for the routing device of forwarding.
Step 404: creating L2 layer region figure below general bureau's topological diagram above, and establish the net in L2 layer region figure
The icon of network node.Icon said herein is the icon in topological diagram, and general each icon can correspond to an equipment, that is, set
Standby icon.The line drawn in topological diagram is all that line is drawn between icon.
Step 405: judge whether isisSysType is level1IS (1) or level1L2IS (3), if it is into
Enter step 406, otherwise enters step 407.
Step 406: L1 layer region figure is created below general bureau's topological diagram above, needs pair when creating L1 layer region figure
The each row of data of IS-IS configuration domain addresses table isisManAreaAddrTable is recycled, should for being in
Each isisManAreaAddr under isisSysInstance creates a L1 layer region figure, and establishes in L1 layer region figure
The icon of the network node.
Wherein, isisManAreaAddr is the field of isisSysTable table, for identifying the domain addresses of IS-IS equipment.
Step 407: 408~step 416 of below step is carried out for each data of is-is neighbor relation table isisISAdjTable
Line processing judgement.Set to handle with other according to the data of the neighborhood table isisISAdjTable of this equipment
Line between standby.
Step 408: judge whether isisISAdjUsage is (1) level1, if yes then enter step 417, otherwise into
Enter step 409.
Wherein, isisISAdjUsage is the field in isisISAdjTable table, is used for identifying IS-IS equipment
Neighborhood situation.According to the description of the field value in ISIS-MIB, value may is that level1 (1), level2 (2) or
Person level1and2 (3).Level1 (1) refers to that the neighborhood region used is L1 layer region, and level2 (2) is to instigate
Neighbours region is L2 layer region, and level1and2 (3) refers to that the neighbours region used is L1 layer region and L2 layer region.
Step 417: neighbor device is searched by is-is neighbor relation domain address table isisISAdjAreaAddrTable
Region, and in the built-in vertical equipment room line in the region of neighbor device.Neighbours mentioned here refer to according to neighborhood table
The neighbor device of a line represented by every data of isisISAdjTable, and local terminal is exactly to collect setting for this table
It is standby.
Step 409: judge whether isisISAdjUsage is (2) level2, if yes then enter step 418, otherwise into
Enter step 410.
Step 418: line between the network equipment and neighbor device is established in L2 layer region.
Step 410: judge whether isisISAdjUsage is (3) level1and2, it is no if yes then enter step 411
Then terminate the processing of this isisISAdjTable data.
Step 411: neighbor device is searched by is-is neighbor relation domain address table isisISAdjAreaAddrTable
Region terminates the processing of this isisISAdjTable data if it can not find, otherwise enters step 412.
Illustrate: terminating the processing to this isisISAdjTable data, is because not knowing its neighborhood at which
In a L1 layer region, therefore it can not determine the region that L2 layer region should connect.
Step 412: establishing L2 layer region icon and L1 layer region icon in the isisSysInstance general bureau topological diagram
Line.
Step 413: judging whether Neighbor Types isisISAdjNeighSysType is L1, if yes then enter step
414, otherwise enter step 415.
Wherein, isisISAdjNeighSysType is the field of is-is neighbor relation table isisISAdjTable table, is used
In the region of the neighbor device of mark IS-IS equipment.According in ISIS-MIB to isisISAdjNeighSysType field value
Description, value may is that L1, L2, respectively refer to L1 layer region and L2 layer region.
Step 414: the line with L1 layer region icon being established by the network node in L2 layer region figure.
Step 415: the company with L1 layer region icon being established by the neighbor device of the network node in L2 layer region figure
Line.
Step 416: if the routing device has established appliance icon in the L1 layer region figure in a step 406,
Then the line between the network node and neighbor device is established in the L1 layer region figure.
Using the method for above-mentioned drafting network topological diagram of the invention, can be sent out automatically according to IS-IS network configuration cases
Now and IS-IS topological diagram is generated, realize the visualization of Intermediate System to Intermediate System management, known to realize the Intermediate System to Intermediate System based on SNMP
Not, Topology Discovery, fault location provide a kind of effective management means for network management operation.
For the visualization for realizing Intermediate System to Intermediate System management, the present invention also provides one kind to be applied to Simple Network Management Protocol
The device of the drafting network topological diagram of the environment of SNMP network management operation.
As shown in figure 5, for a kind of structural schematic diagram for the device for drawing network topological diagram provided by the invention, the device
500 specifically include that
Information configuration unit 510, for configuring a management information bank MIB for each network node of target network.
Acquisition unit 520, for being accessed by application layer protocol to each management information bank MIB, acquisition IS-IS matches
Set data information.
Drawing unit 530, for drawing each network section of target network according to collected IS-IS configuration data information
The IS-IS network topological diagram of point.
Wherein, acquisition unit 520 specifically includes:
Example acquisition module, for according to the management information bank MIB acquisition IS-IS example letter configured on each network node
Cease table isisSysTable；
Data judgment module, for judging whether IS-IS example information table isisSysTable collects data, if do not had
Have, then termination；
Acquisition module, for when IS-IS example information table isisSysTable collects data, to each network node
IS-IS configuration data information is acquired, which includes: configuration domain addresses table
IsisManAreaAddrTable, is-is interface circuit table isisCircTable, is-is neighbor relation table
IsisISAdjTable, is-is neighbor relation domain address table isisISAdjAreaAddrTable and is-is neighbor relations I P
Location table isisISAdjIPAddrTable.
Wherein, drawing unit 530 is specifically used for, and is believed according to the IS-IS example in collected IS-IS configuration data information
It ceases table isisSysTable and creates general bureau's topological diagram, judge the IS-IS device type of each network node of target network；
Domain addresses table isisManAreaAddrTable and IS- is configured according to the device type of network node and IS-IS
IS interface circuit table isisCircTable creates L1 layer region figure or L2 layer region figure, and these regions in general bureau's topological diagram
The appliance icon of the network node is established in figure；
The neighborhood that the network node is obtained according to is-is neighbor relation table isisISAdjTable, to every neighbours
Relationship is with obtaining the IP of the neighbours of this neighborhood by is-is neighbor relations I P address table isisISAdjIPAddrTable
Location determines the neighbor device of this neighborhood by IP address, then according to is-is neighbor relation domain to this neighborhood
Location table isisISAdjAreaAddrTable creates the figure of the neighbor device in corresponding L1 layer region figure or L2 layer region figure
Mark；And
The line between the appliance icon of the network node and neighbor device icon is established, the IS- of the network node is completed
The drafting of IS network topological diagram.
Using the device of above-mentioned drafting network topological diagram of the invention, can be sent out automatically according to IS-IS network configuration cases
Now and IS-IS topological diagram is generated, realize the visualization of Intermediate System to Intermediate System management, known to realize the Intermediate System to Intermediate System based on SNMP
Not, Topology Discovery, fault location provide a kind of effective management means for network management operation.
In a preferred embodiment of the invention, on the basis of implementation shown in above-mentioned Fig. 5, drawing unit 540 is specifically included:
First judgment module, for judging whether the device type of network node is the routing device of L2 layer region or is
It is responsible for the routing device of forwarding between L1 layer region and L2 layer region, if it is below general bureau's topological diagram of the network node
L2 layer region figure is created, and establishes the icon of the network node in the L2 layer region figure, while establishing in general bureau's topological diagram
Indicate the icon of the L2 layer region figure；
Second judgment module, for judge the network node device type whether be L1 layer region routing device or
It is responsible for the routing device of forwarding between L1 layer region and L2 layer region, if it is under general bureau's topological diagram of the network node
Face creates L1 layer region figure, and when creating the L1 layer region figure, configures domain addresses table according to IS-IS
The each row of data of isisManAreaAddrTable and is-is interface circuit table isisCircTable are recycled, and are opened up in general bureau
Flutterring in figure is that each domain addresses creates a L1 layer region figure, and the icon of the network equipment is established in the L1 layer region figure,
The icon for indicating the L1 layer region figure is established in general bureau's topological diagram simultaneously.
In another preferred embodiment of the invention, on the basis of implementation shown in above-mentioned Fig. 5, drawing unit 540 is specifically used
In judging the neighborhood of the network node according to is-is neighbor relation table isisISAdjTable；
If neighborhood region is L1 layer region, pass through is-is neighbor relation domain address table
IsisISAdjAreaAddrTable searches the region of neighbor device, in the built-in vertical equipment room line in the region of neighbor device；
If the neighborhood region used is L2 layer region, the network section is directly established in the L2 layer region
Line between the appliance icon and neighbor device icon neighbor device of point；
If neighborhood region is L1 layer region and L2 layer region, pass through is-is neighbor relation domain address table
The region that isisISAdjAreaAddrTable searches neighbor device stops handling if do not found；
It such as finds, then establishes the icon of L2 layer region and the icon of L1 layer region in general bureau's topological diagram of the network node
Line；The neighbor device institute of the network node is further judged according to the is-is neighbor relation table isisISAdjTable
Region,
If it is L1 layer region, then the company with L1 layer region icon is established by the network node in L2 layer region figure
Line；If not L1 layer region, then established and L1 layer region figure in L2 layer region figure by the neighbor device of the network node
Target line；Also, if the network node establishes appliance icon in L1 layer region figure, in the L1 layer region figure
The line between line neighbor device icon between the middle appliance icon for establishing the network node and neighbor device icon.
In conclusion a kind of method and apparatus for drawing network topological diagram provided by the invention, to realize based on SNMP's
Intermediate System to Intermediate System identification, Topology Discovery, fault location provide implementation, by establishing the environment of SNMP network management operation,
To the management information bank MIB of each network node configuration of target network, IS-IS configuration data information is acquired, then to acquisition
Result handled, complete the drafting of the IS-IS network topological diagram of target network；The present invention can match according to IS-IS network
Situation is set to find automatically and generate IS-IS topological diagram, thus provide visualization IS-IS information, realize Intermediate System to Intermediate System management can
Depending on changing, O&M efficiency is promoted, provides a kind of effective management means for network management operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of method for drawing network topological diagram, which is characterized in that be applied to Simple Network Management Protocol SNMP network management
The environment of operation；This method comprises:
A management information bank MIB is configured for each network node of target network, the management letter configured on each network node
Breath library MIB can acquire IS-IS example information table；
It is accessed by application layer protocol to each management information bank MIB, acquires Intermediate System-to-Intermediate System IS-IS
Configuration data information, the IS-IS configuration data information include: configuration domain addresses table, is-is interface circuit table, is-is neighbor
Relation table, is-is neighbor relation domain address table and is-is neighbor relations I P address table；
The IS-IS net of each network node of the target network is drawn according to the collected IS-IS configuration data information
Network topological diagram；
The IS- of each network node that the target network is drawn according to the collected IS-IS configuration data information
IS network topological diagram includes:
General bureau's topological diagram is created according to the IS-IS example information table in the collected IS-IS configuration data information, judges mesh
Mark the IS-IS device type of each network node of network；
It is opened up according to the device type of network node and IS-IS configuration domain addresses table and is-is interface circuit table in the general bureau
It flutters and creates L1 layer region figure or L2 layer region figure in figure, and establish the appliance icon of the network node in these administrative division maps；
It is described that domain addresses table and is-is interface circuit table are configured described total according to the device type and IS-IS of network node
L1 layer region figure or L2 layer region figure are created in office's topological diagram, and establishes the equipment drawing of the network node in these administrative division maps
Mark includes:
Judge network node device type whether be the routing device of L2 layer region or be L1 layer region and L2 layer region it
Between be responsible for forwarding routing device, if it is below general bureau's topological diagram of the network node create L2 layer region figure, and
The icon of the network node is established in the L2 layer region figure, while the expression L2 layer region figure is established in general bureau's topological diagram
Icon.
2. the method according to claim 1, wherein it is described by application layer protocol to each management information
Library MIB accesses, and acquires IS-IS configuration data information, specifically further include:
The management information bank MIB acquisition IS-IS example information table configured on each network node；
Judge whether the IS-IS example information table collects data, if it is not, termination；
If so, then acquiring IS-IS configuration data information to each network node.
3. according to the method described in claim 2, it is characterized in that, described believe according to the collected IS-IS configuration data
Breath draws the IS-IS network topological diagram of each network node of the target network, specifically further include:
The neighborhood that the network node is obtained according to the is-is neighbor relation table passes through IS-IS to every neighborhood
Neighborhood IP address table obtains the IP address of the neighbours of this neighborhood, and the neighbour of this neighborhood is determined by IP address
Occupy equipment, then to this neighborhood according to is-is neighbor relation domain address table in corresponding L1 layer region figure or L2 layer region
Figure creates the icon of the neighbor device；And
The line between the appliance icon of the network node and neighbor device icon is established, the IS- of the network node is completed
The drafting of IS network topological diagram.
4. according to the method described in claim 3, it is characterized in that, the device type and IS-IS according to network node
Configuration domain addresses table and is-is interface circuit table create L1 layer region figure or L2 layer region figure in general bureau's topological diagram, and
The appliance icon of the network node is established in these administrative division maps, specifically further include:
Whether the device type for judging the network node is the routing device of L1 layer region or is L1 layer region and L2 layer region
Between be responsible for forwarding routing device, if it is below general bureau's topological diagram of the network node create L1 layer region figure, and
And when creating the L1 layer region figure, each row of data of domain addresses table and is-is interface circuit table is configured according to the IS-IS
It is recycled, is one L1 layer region figure of each domain addresses creation in general bureau's topological diagram, and in the L1 layer region figure
The icon of the network node is established, while establishing the icon for indicating the L1 layer region figure in general bureau's topological diagram.
5. according to the method described in claim 3, it is characterized in that, described according to is-is neighbor relation table acquisition
The neighborhood of network node obtains this neighborhood by is-is neighbor relations I P address table to every neighborhood
The IP address of neighbours determines the neighbor device of this neighborhood by IP address, then to this neighborhood according to IS-IS neighbour
The icon that relation domain address table creates the neighbor device in corresponding L1 layer region figure or L2 layer region figure is occupied, and, it establishes
Line between the appliance icon and neighbor device icon of the network node, the IS-IS network for completing the network node are opened up
The drafting for flutterring figure, specifically includes:
The neighborhood of the network node is judged according to the is-is neighbor relation table；
If neighborhood region is L1 layer region, set by the is-is neighbor relation domain address table lookup neighbours
Standby region, in the built-in vertical equipment room line in the region of neighbor device；
If neighborhood region is L2 layer region, the equipment of the network node is directly established in the L2 layer region
Line between icon and neighbor device icon；
If neighborhood region is L1 layer region and L2 layer region, pass through the is-is neighbor relation domain address table
The region for searching neighbor device stops handling if do not found；
It such as finds, then establishes the icon of L2 layer region and the icon of L1 layer region in general bureau's topological diagram of the network node
Line；
The region where the neighbor device of the network node is further judged according to the is-is neighbor relation table,
If it is L1 layer region, then the line with L1 layer region icon is established by the network node in L2 layer region figure；Such as
Fruit is not L1 layer region, then establishes the company with L1 layer region icon by the neighbor device of the network node in L2 layer region figure
Line；Also, it if the network node establishes appliance icon in L1 layer region figure, is established in the L1 layer region figure
Line between the appliance icon and neighbor device icon of the network node.
6. a kind of device for drawing network topological diagram, which is characterized in that be applied to Simple Network Management Protocol SNMP network management
The environment of operation；The device includes:
Information configuration unit, for configuring a management information bank MIB, each network section for each network node of target network
The management information bank MIB configured on point can acquire IS-IS example information table；
Acquisition unit, for being accessed by application layer protocol to each management information bank MIB, acquisition intermediate system is arrived
Intermediate system IS-IS configuration data information, the IS-IS configuration data information include: configuration domain addresses table, is-is interface electricity
Road table, is-is neighbor relation table, is-is neighbor relation domain address table and is-is neighbor relations I P address table；
Drawing unit, for drawing each network of the target network according to the collected IS-IS configuration data information
The IS-IS network topological diagram of node；
The drawing unit is used for,
General bureau's topological diagram is created according to the IS-IS example information table in the collected IS-IS configuration data information, judges mesh
Mark the IS-IS device type of each network node of network；
It is opened up according to the device type of network node and IS-IS configuration domain addresses table and is-is interface circuit table in the general bureau
It flutters and creates L1 layer region figure or L2 layer region figure in figure, and establish the appliance icon of the network node in these administrative division maps；
The drawing unit includes: first judgment module,
The first judgment module, for judging whether the device type of network node is the routing device of L2 layer region or is
It is responsible for the routing device of forwarding between L1 layer region and L2 layer region, if it is below general bureau's topological diagram of the network node
L2 layer region figure is created, and establishes the icon of the network node in the L2 layer region figure, while in general bureau's topological diagram
Establish the icon for indicating the L2 layer region figure.
7. device according to claim 6, which is characterized in that the acquisition unit specifically includes:
Example acquisition module, the management information bank MIB acquisition IS-IS example information table configured on each network node；
Data judgment module, for judging whether the IS-IS example information table collects data, if it is not, termination
Reason；
Acquisition module, for matching to each network node acquisition IS-IS when the IS-IS example information table collects data
Data information is set, the IS-IS configuration data information includes: configuration domain addresses table, is-is interface circuit table, is-is neighbor pass
It is table, is-is neighbor relation domain address table and is-is neighbor relations I P address table.
8. device according to claim 7, which is characterized in that the drawing unit is specifically also used to,
The neighborhood that the network node is obtained according to the is-is neighbor relation table passes through IS-IS to every neighborhood
Neighborhood IP address table obtains the IP address of the neighbours of this neighborhood, and the neighbour of this neighborhood is determined by IP address
Occupy equipment, then to this neighborhood according to is-is neighbor relation domain address table in corresponding L1 layer region figure or L2 layer region
Figure creates the icon of the neighbor device；And
The line between the appliance icon of the network node and neighbor device icon is established, the IS- of the network node is completed
The drafting of IS network topological diagram.
9. device according to claim 8, which is characterized in that the drawing unit further include:
Second judgment module, for judging whether the device type of the network node is the routing device of L1 layer region or is L1
It is responsible for the routing device of forwarding between layer region and L2 layer region, is if it is created below general bureau's topological diagram of the network node
L1 layer region figure is built, and when creating the L1 layer region figure, domain addresses table and is-is interface are configured according to the IS-IS
The each row of data of circuit table is recycled, and is one L1 layer region figure of each domain addresses creation in general bureau's topological diagram, and
The icon of the network node is established in the L1 layer region figure, while the expression L1 layer region is established in general bureau's topological diagram
The icon of figure.
10. device according to claim 8, which is characterized in that the drawing unit is specifically used for,
The neighborhood of the network node is judged according to the is-is neighbor relation table；
If neighborhood region is L1 layer region, set by the is-is neighbor relation domain address table lookup neighbours
Standby region, in the built-in vertical equipment room line in the region of neighbor device；
If neighborhood region is L2 layer region, the equipment of the network node is directly established in the L2 layer region
Line between icon and neighbor device icon；
If neighborhood region is L1 layer region and L2 layer region, pass through the is-is neighbor relation domain address table
The region for searching neighbor device stops handling if do not found；
It such as finds, then establishes the icon of L2 layer region and the icon of L1 layer region in general bureau's topological diagram of the network node
Line；
The region where the neighbor device of the network node is further judged according to the is-is neighbor relation table,
If it is L1 layer region, then the line with L1 layer region icon is established by the network node in L2 layer region figure；Such as
Fruit is not L1 layer region, then establishes the company with L1 layer region icon by the neighbor device of the network node in L2 layer region figure
Line；Also, it if the network node establishes appliance icon in L1 layer region figure, is established in the L1 layer region figure
Line between the appliance icon and neighbor device icon of the network node.
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