CN109617729A - A kind of PTN network element switches to the method and system of SPTN network element - Google Patents
A kind of PTN network element switches to the method and system of SPTN network element Download PDFInfo
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- CN109617729A CN109617729A CN201811548002.9A CN201811548002A CN109617729A CN 109617729 A CN109617729 A CN 109617729A CN 201811548002 A CN201811548002 A CN 201811548002A CN 109617729 A CN109617729 A CN 109617729A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
- H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
This application provides the method and systems that a kind of PTN network element switches to SPTN network element, which comprises when the network equipment is PTN network element, updating software release is the software version that SPTN network element is supported；Data will be locally configured and be converted to and meet the configuration data of SPTN standard, and for the business model that business datum generation group list item and flow entry form；When receiving the request of query traffic data and equipment management data that the SPTN controller issues, the corresponding data of Xiang Suoshu SPTN controller report make the SPTN controller carry out data recovery；When the data that the recovery for receiving the transmission of SPTN controller is completed, the configuration data being locally stored is deleted, and stores the SPTN controller and restores the data completed, switches to SPTN network element.This method can realize the switching of PTN network to SPTN network element automatically.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of Packet Transport Network (Packet Transport
Network, PTN) network element switch to software definition Packet Transport Network (SPTN) network element method and system.
Background technique
At present there are many PTN network elements in PTN network, these network elements are managed by each manufacturer's network management system.
With the SDNization of PTN network element, SPTN network element will be will appear in subsequent PTN network, by having unified standardization interface
SPTN controller management.
SPTN controller can greatly facilitate opening and managing for business.How the PTN network element in existing net to be also switched to
SPTN network element is then internalized by the range of management of SPTN controller, will also become a kind of demand.
Summary of the invention
In view of this, the application provides the method and system that a kind of PTN network element switches to SPTN network element, can realize automatically
Switching of the PTN network to SPTN network element.
In order to solve the above technical problems, the technical solution of the application is achieved in that
A kind of method that PTN network element switches to SPTN network element, applied to the system including the network equipment and SPTN controller
In, which comprises
When the network equipment is PTN network element, updating software release is the software version that SPTN network element is supported；To locally it match
It sets data and is converted to the configuration data for meeting SPTN standard, and for the business that business datum generation group list item and flow entry form
Model；Wherein, configuration data includes business datum and equipment management data；
When receiving the request of query traffic data and equipment management data that the SPTN controller issues, to institute
The corresponding data of SPTN controller report are stated, the SPTN controller is made to carry out data recovery；
When the data that the recovery for receiving the transmission of SPTN controller is completed, the configuration data being locally stored is deleted, and
It stores the SPTN controller and restores the data completed, switch to SPTN network element.
A kind of system that PTN network element switches to SPTN network element, the system include: the network equipment and SPTN controller；
The network equipment, when as PTN network element, updating software release is the software version that SPTN network element is supported；It incite somebody to action this
Ground configuration data is converted to the configuration data for meeting SPTN standard, and formed for business datum generation group list item and flow entry
Business model；Wherein, configuration data includes business datum and equipment management data；Receive that the SPTN controller issues looks into
When the request of inquiry business datum and equipment management data, the corresponding data of Xiang Suoshu SPTN controller report make the SPTN
Controller carries out data recovery；When the data that the recovery for receiving the transmission of SPTN controller is completed, the configuration that will be locally stored
Data are deleted, and are stored the SPTN controller and restored the data completed, and SPTN network element is switched to；
The SPTN controller, for issuing query traffic data and equipment management data to the network equipment
Request；When receiving the business datum and equipment management data that the network equipment reports, data recovery is carried out respectively, and
To restore the data distributing completed to the network equipment.
As can be seen from the above technical solution, PTN is realized by the upgrading of software version and the recovery of data in the application
Switching of the network element to SPTN network element.The program can realize the switching of PTN network to SPTN network element automatically.
Detailed description of the invention
Fig. 1 is the flow diagram that PTN network element switches to SPTN network element in the embodiment of the present application；
Fig. 2 is VPWS business model schematic diagram in the embodiment of the present application；
Fig. 3 is the message format schematic diagram of flow table acquisition of information in the embodiment of the present application；
Fig. 4 is the message format schematic diagram that table acquisition of information is organized in the embodiment of the present application；
Fig. 5 is the get interface message form schematic diagram of netconf agreement in the embodiment of the present application；
Fig. 6 is to carry out data for corresponding group of list item of business datum and flow entry in the embodiment of the present application to restore signal
Figure；
Fig. 7 is the system schematic for being applied to above-mentioned technology in the embodiment of the present application.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and examples,
Technical solution of the present invention is described in detail.
A kind of method that PTN network element switches to SPTN network element is provided in the embodiment of the present application, is applied to include the network equipment
In the system of SPTN controller, realize PTN network element to SPTN network element by the upgrading of software version and the recovery of data
Switching.The program can realize the switching of PTN network to SPTN network element automatically.
With reference to the accompanying drawing, it is shown in detail in the embodiment of the present application and realizes that PTN network element switches to the process of SPTN network element.
Referring to Fig. 1, Fig. 1 is the flow diagram that PTN network element switches to SPTN network element in the embodiment of the present application.Specific steps
Are as follows:
Step 101, when the network equipment is PTN network element, updating software release is the software version that SPTN network element is supported.
Step 102, which, which will be locally configured data and be converted to, meets the configuration data of SPTN standard, and is directed to industry
The business model of business data generation group list item and flow entry composition.
Wherein, configuration data includes: business datum and equipment management data.
The network equipment matches PTN network element in accordance with " China Mobile's miniaturization access SPTN southbound interface technical requirements " standard
It sets data and is all converted to the configuration data for complying with standard interface.
In " China Mobile's miniaturization access SPTN southbound interface technical requirements ", provided for different business scenarios
Corresponding group of table and flow table model.Including common virtual private line service (VPWS) business, with operation and maintenance management (OAM) configuration
VPWS business, the VPWS business of tape label switching path (LSP) protection, VPWS business and band with service quality (QOS) configuration
The VPWS business of performance statistics.These business models are all made of fixed flow table and group table.
For the business model of business datum generation group list item and flow entry composition in configuration data in this step, specifically
Include:
First according to PTN business configuration, determine corresponding group list item and flow entry in the corresponding business model of SPTN standard；?
That is determining it in " China Mobile's miniaturization access SPTN southbound interface technical requirements " corresponding business model, as commonly
VPWS business.
Secondly, extracting the key message of PTN configuration；The content of key message is determined according to the difference of business.
Finally, generating openflow association according to open flows (openflow) agreement and SPTN table type fashion (TTP) model
Discuss and decide the flow entry and group contents in table of justice.
Referring to fig. 2, Fig. 2 is VPWS business model schematic diagram in the embodiment of the present application.The relation information of VPWS business in Fig. 2
As shown in the frame with oblique line in Fig. 2: network-side port downlink information, LSP/PW enter direction label information, user-side port downlink
Information；User-side port uplink information, PW go out direction label information, LSP goes out direction label information, next hop information.According to
Openflow agreement and SPTN TTP (table type-scheme) model generate the flow entry and group of Openflow1.3.4 protocol definition
Contents in table.Specific format defers to flow entry statistical framework body ofp_flow_stats and group table in Openflow1.3.4 agreement
Item description scheme ofp_group_desc.
For in configuration data business datum generation group list item and flow entry composition business model when, the method into
One step includes: that the flow table of same business model is identified using the same word segment value of same preset field；In order to make SPTN controller
When end carries out data recovery, so that there are certain relationships between flow table.
Such as common VPWS business, need to generate uplink and downlink VLAN flow entry, bis- layers of port flow entry of MPLS, MPLS flow table
Item, MPLS two-layer VPN set of tags list item, MPLS tunnel label group list item, MPLS interface group list item, two layer interface group list items etc. close
The stream of key/group list item.In order to which the flow table of uniform service model is associated, in generating process, the stream of same business model
Table is needed with identical field identification.
Here use is that pad2 fills field, 4 bytes in ofp_flow_stats structural body.The field is used to identify category
In the flow table of identical services model.
It needs to establish connection between SPT controller and the network equipment, it is specific to connect are as follows:
SPTN controller receives address Internet Protocol (IP) of the network equipment of user's input, username and password；And
Storage；So that the network equipment is added on SPTN controller.
Openflow and configuration (netconf) connection are established between SPTN controller and the network equipment, for carrying out
The transmission of data.
Step 103, which receives the query traffic data and equipment management that the SPTN controller issues
When the request of data, the corresponding data of Xiang Suoshu SPTN controller report make the SPTN controller carry out data recovery.
SPTN controller issues the request of query traffic data by openflow connection；When specific implementation, pass through
OFPT_MULTIPART_REQUEST message in Openflow1.3.4 agreement issues inquiry request.
The network equipment reports corresponding group of list item of business datum and flow entry by openflow connection；When specific implementation,
By OFPT_MULTIPART_REPLY in Openflow1.3.4 agreement by business datum corresponding all group list item and flow table
Item is reported to SPTN controller.It is OFPMP_FLOW=1 that group list item, which reports type field, and type field of giving the correct time in flow entry is
OFPMP_GROUP_DESC=7.
SPTN controller issues the request that query facility manages data by netconf connection；When specific implementation, pass through
The get interface polls of netconf agreement.
The network equipment manages data by netconf connection reporting equipment.
It is the message format schematic diagram of flow table acquisition of information in the embodiment of the present application referring to Fig. 3, Fig. 3.It is each in specific format
The visible Openflow1.3.4 of meaning represented by field, in the embodiment of the present application in agreement relevant field using different are as follows:
Field value is filled in pad2 in ofp_flow_stats structural body, for identifying which business mould is flow table belong to
Type.Type field of giving the correct time in flow entry is OFPMP_GROUP_DESC=7.
Referring to fig. 4, Fig. 4 is the message format schematic diagram that table acquisition of information is organized in the embodiment of the present application.It is each in specific format
The visible Openflow1.3.4 of meaning represented by field.It is OFPMP_FLOW=1 that group list item, which reports type field,.
It is the get interface message form schematic diagram of netconf agreement in the embodiment of the present application referring to Fig. 5, Fig. 5.It is each in Fig. 5
The meaning of field is referring to netconf agreement.
When SPTN controller carries out data recovery, restored respectively for business datum and equipment management data, specifically
It is as follows:
For the recovery process of business datum:
According to the logical relation between group table, and between group table and flow table, it is based on current group/flow table, is found next
Grade group table or flow table；
The flow table for belonging to same business model is determined according to the field value in preset field.
Since every kind of business scenario includes multiple flow tables and group table, need to associate these flow tables and group table, ability
Recover complete business.
It is provided according to openflow agreement, it, can be along there are logical relation between group table and between group table and flow table
Current group/flow table, searches out next stage group table by action GROUP.But there is no associated logical relation between flow table,
When business recovery, need that the group table of same VPWS business and flow table associate by certain mode.To understand
The certainly problem, using in the embodiment of the present application is that pad2 fills field, 4 bytes in ofp_flow_stats structural body.The word
Section is used to identify the flow table for belonging to identical services model, and the incidence relation between Lai Jinhang flow table carries out convenient for SPTN controller
Data are restored.
Referring to Fig. 6, Fig. 6 is extensive for corresponding group of list item of business datum and flow entry progress data in the embodiment of the present application
Multiple schematic diagram.
According to the service identification classification flow entry filled in pad2 between flow table, according to the movement GROUP's in flow entry
Group ID acquisition group list item；Group table obtains next stage group list item according to the group ID of the movement GROUP of current group list item.
For the recovery of equipment management data, specifically: the YANG data model defined according to SPTN standard, to equipment pipe
Reason data are restored.
SPTN controller will restore finishing service data and be handed down to the network equipment by openflow connection；
The equipment management data for restoring to complete is handed down to the network equipment by netconf connection.
Step 104, which will be locally stored when the data that the recovery for receiving the transmission of SPTN controller is completed
Configuration data delete, and store the SPTN controller and restore the data completed, switch to SPTN network element.
Also provide that a kind of PTN network element switches to SPTN network element based on same inventive concept, in the embodiment of the present application is
System.Referring to Fig. 7, Fig. 7 is the system schematic for being applied to above-mentioned technology in the embodiment of the present application.The system includes: the network equipment
With SPTN controller；
The network equipment, when as PTN network element, updating software release is the software version that SPTN network element is supported；To locally it match
It sets data and is converted to the configuration data for meeting SPTN standard, and for the business that business datum generation group list item and flow entry form
Model；Wherein, configuration data includes business datum and equipment management data；Receive the inquiry industry that the SPTN controller issues
When the request of data of being engaged in and equipment management data, the corresponding data of Xiang Suoshu SPTN controller report control the SPTN
Device carries out data recovery；When the data that the recovery for receiving the transmission of SPTN controller is completed, the configuration data that will be locally stored
It deletes, and stores the SPTN controller and restore the data completed, switch to SPTN network element；
SPTN controller, for issuing the request of query traffic data and equipment management data to the network equipment；
When receiving the business datum and equipment management data that the network equipment reports, data recovery is carried out respectively, and will restore
The data distributing of completion gives the network equipment.
Preferably,
SPTN controller, the IP address of the network equipment for receiving input, username and password；And it is set with the network
Openflow is established between standby to connect with netconf.
Preferably,
SPTN controller issues the request of query traffic data by openflow connection；
The network equipment reports corresponding group of list item of business datum and flow entry by openflow connection；
SPTN controller issues the request that query facility manages data by netconf connection；
The network equipment manages data by netconf connection reporting equipment.
Preferably,
The network equipment is further used for the industry for business datum generation group list item and flow entry composition in configuration data
When business model, the method further includes: the flow table of same business model uses the same word segment value mark of same preset field
Know；
SPTN controller, when being further used for being restored for corresponding group of list item of business datum and flow entry, according to
Between group table, and the logical relation between group table and flow table, it is based on current group/flow table, finds next stage group table or flow table；
The flow table for belonging to same business model is determined according to the field value in preset field.
In conclusion the application is by using OFPT_MULTIPART_REQUEST/OFPT_ in openflow agreement
MULTIPART_REPLY message obtains the configuration data of underlying device, and using the filling of structural body ofp_flow_stats
Field pad2 identifies all flow tables of same business model, the flow table of onrelevant is associated, extensive convenient for subsequent data
It is multiple.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of method that Packet Transport Network PTN network element switches to the Packet Transport Network SPTN network element of software definition is applied to packet
In the system for including the network equipment and SPTN controller, which is characterized in that the described method includes:
When the network equipment is PTN network element, updating software release is the software version that SPTN network element is supported；Number will be locally configured
According to being converted to the configuration data for meeting SPTN standard, and for the business mould that business datum generation group list item and flow entry form
Type；Wherein, configuration data includes business datum and equipment management data；
When receiving the request of query traffic data and equipment management data that the SPTN controller issues, Xiang Suoshu
The corresponding data of SPTN controller report make the SPTN controller carry out data recovery；
When the data that the recovery for receiving the transmission of SPTN controller is completed, the configuration data being locally stored is deleted, and stores
The SPTN controller restores the data completed, and switches to SPTN network element.
2. the method according to claim 1, wherein the method further includes:
SPTN controller receives the IP address of the network equipment of user's input, username and password；And it stores；
It establishes between SPTN controller and the network equipment and is assisted based on open flow agreement openflow and network configuration netconf
The connection of view.
3. according to the method described in claim 2, it is characterized in that,
The SPTN controller issues the request of query traffic data by openflow connection；
The network equipment reports corresponding group of list item of business datum and flow entry by openflow connection；
The SPTN controller issues the request that query facility manages data by netconf connection；
The network equipment manages data by netconf connection reporting equipment.
4. the method according to claim 1, wherein the business datum generation group table in configuration data
The business model of item and flow entry composition, comprising:
According to PTN business configuration, determine corresponding group list item and flow entry in the corresponding business model of SPTN standard；
Extract the key message of PTN configuration；
The flow entry and group table of openflow protocol definition are generated according to openflow agreement and SPTN table type fashion TTP model
Item content.
5. according to the method described in claim 4, it is characterized in that, the business datum generation group table in configuration data
When the business model of item and flow entry composition, the method further includes: the flow table of same business model uses same default
The same word segment value of field identifies；
When the SPTN controller is restored for corresponding group of list item of business datum and flow entry, according between group table, with
And the logical relation between group table and flow table, it is based on current group/flow table, finds next stage group table or flow table；According to predetermined word
Field value in section determines the flow table for belonging to same business model.
6. method according to claim 1-5, which is characterized in that the SPTN controller restorer manages number
According to, comprising:
The YANG data model defined according to SPTN standard, restores equipment management data.
7. the system that a kind of Packet Transport Network PTN network element switches to the Packet Transport Network SPTN network element of software definition, feature exist
In the system includes: the network equipment and SPTN controller；
The network equipment, when as PTN network element, updating software release is the software version that SPTN network element is supported；To locally it match
It sets data and is converted to the configuration data for meeting SPTN standard, and for the business that business datum generation group list item and flow entry form
Model；Wherein, configuration data includes business datum and equipment management data；Receive the inquiry industry that the SPTN controller issues
When the request of data of being engaged in and equipment management data, the corresponding data of Xiang Suoshu SPTN controller report control the SPTN
Device carries out data recovery；When the data that the recovery for receiving the transmission of SPTN controller is completed, the configuration data that will be locally stored
It deletes, and stores the SPTN controller and restore the data completed, switch to SPTN network element；
The SPTN controller, for issuing the request of query traffic data and equipment management data to the network equipment；
When receiving the business datum and equipment management data that the network equipment reports, data recovery is carried out respectively, and will restore
The data distributing of completion gives the network equipment.
8. system according to claim 7, which is characterized in that
The SPTN controller, the IP address of the network equipment for receiving input, username and password；And it is set with the network
The connection based on open flows openflow agreement and network configuration protocol netconf is established between standby.
9. system according to claim 8, which is characterized in that
The SPTN controller issues the request of query traffic data by openflow connection；
The network equipment reports corresponding group of list item of business datum and flow entry by openflow connection；
The SPTN controller issues the request that query facility manages data by netconf connection；
The network equipment manages data by netconf connection reporting equipment.
10. according to the described in any item systems of claim 7-9, which is characterized in that
The network equipment is further used for the industry for business datum generation group list item and flow entry composition in configuration data
When business model, the method further includes: the flow table of same business model uses the same word segment value mark of same preset field
Know；
The SPTN controller, when being further used for being restored for corresponding group of list item of business datum and flow entry, according to
Between group table, and the logical relation between group table and flow table, it is based on current group/flow table, finds next stage group table or flow table；
The flow table for belonging to same business model is determined according to the field value in preset field.
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| CN201811548002.9A CN109617729B (en) | 2018-12-18 | 2018-12-18 | Method and system for switching PTN network element into SPTN network element |
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| CN110365549B (en) * | 2019-06-10 | 2021-09-24 | 烽火通信科技股份有限公司 | Processing method and processing system of SPTN (shortest Path bridging) network |
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