CN107749873A - The session backup method and device of a kind of multichannel agreement - Google Patents
The session backup method and device of a kind of multichannel agreement Download PDFInfo
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- CN107749873A CN107749873A CN201710936760.7A CN201710936760A CN107749873A CN 107749873 A CN107749873 A CN 107749873A CN 201710936760 A CN201710936760 A CN 201710936760A CN 107749873 A CN107749873 A CN 107749873A
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- session
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/146—Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/148—Migration or transfer of sessions
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer And Data Communications (AREA)
Abstract
This application provides a kind of session backup method of multichannel agreement and device.First master session is backed up, when the session characteristics for detecting that the data corresponding to multichannel agreement gone out based on control connection negotiation are connected produce, the identification information of master session is backed up jointly together with the session characteristics, standby equipment finds the master session of foregoing backup according to the identification information of master session, and the session characteristics are associated with master session.Standby equipment will be finally backuped to from session, and based on the incidence relation between master session and session characteristics, by master session with being associated from session.
Description
Technical field
The application is related to computer communication field, more particularly to the session backup method and dress of a kind of multichannel agreement
Put.
Background technology
In order to improve the reliability of network, generally dispose two or multiple devices in the key point of network, these equipment it
Between backup each other.In order to realize that main equipment is delayed after machine, when stand-by equipment takes over the task of main equipment, it can rapidly recover every
Business, stand-by equipment conversate according to the session information on main equipment and backed up into necessary means.
, it is necessary to the address and port of follow-up data passage first in control passage when using multichannel session
Hold consultation, then creating multiple data channel according to negotiation result connects.Control connection is mainly used in the transmission of control information,
Data connect the transmission for being mainly used in data.During data transfer, control connection is constantly in connection status.If pin
To the master session of control connection in the aging before session connected for data, bust this can be caused, therefore, generally will be main
Session is controlling master session not allow aging, to ensure that data can be passed normally with getting up from session association before conversation aging
It is defeated.
The problem of prior art can produce is：Session not can determine that the master session connected for control and be directed to when backing up
Data connection the master session after session, backup can not be associated with from session, may because of master session from session it
Preceding aging and cause bust this.
The content of the invention
In order to solve the above technical problems, this application provides a kind of switch ports themselves security protection based on ICP/IP protocol
Method and apparatus, technical scheme are as follows：
A kind of session backup method of multichannel agreement, the network that methods described is applied to main equipment and standby equipment composition are pacified
Full device systems, the session list of the Network Security Device system include：What is pre-established corresponds to the multichannel agreement
The master session of control connection, the data corresponding to the multichannel agreement that are associated with the master session be connected from session,
Methods described includes：
Master session is backuped to standby equipment by main equipment；
The session characteristics that main equipment detection is connected based on the data corresponding to multichannel agreement that control connection negotiation goes out, when
When the session characteristics produce, the identification information of master session is backuped into standby equipment jointly together with the session characteristics；
After standby equipment receives identification information and the session characteristics of the master session, according to the identification information of master session
The master session of foregoing backup is found, the session characteristics are associated with master session；
Main equipment will backup to standby equipment from session, standby equipment based on the incidence relation between master session and session characteristics,
By master session with being associated from session.
A kind of session backup method of multichannel agreement, the network that methods described is applied to main equipment and standby equipment composition are pacified
Full device systems, methods described include：
When monitoring that the session in session list changes, judge whether itself is in session backup connection status；
If itself being in session backup connection status, whether the session for judging to change is by batch backup；
If the session to change by batch backup, is become using foregoing session backup method by described
The session of change backs up to standby equipment.
A kind of session back-up device of multichannel agreement, the network that described device is applied to main equipment and standby equipment composition are pacified
Full device systems, the session list of the Network Security Device system include：What is pre-established corresponds to the multichannel agreement
The master session of control connection, the data corresponding to the multichannel agreement that are associated with the master session be connected from session,
Described device includes：
First backup module：Master session is backuped into standby equipment for main equipment；
Second backup module：The data corresponding to multichannel agreement gone out for main equipment detection based on control connection negotiation
The session characteristics of connection, it is when the session characteristics produce, the identification information of master session is jointly standby together with the session characteristics
Part arrives standby equipment；
First relating module：After identification information and the session characteristics of the master session being received for standby equipment, root
The master session of foregoing backup is found according to the identification information of master session, the session characteristics are associated with master session；
Second relating module：Standby equipment will be backuped to from session for main equipment, it is special with session that standby equipment is based on master session
Incidence relation between sign, by master session with being associated from session.
A kind of session back-up device of multichannel agreement, the network that described device is applied to main equipment and standby equipment composition are pacified
Full device systems, described device include：
First judge module：When session for monitoring in session list changes, judge whether itself is in meeting
Talk about backup connection status；
Second judge module：For the session that when itself is in session backup connection status, judges to change whether
By batch backup；
3rd backup module：For when the session to change by batch backup when, it is standby using foregoing session
The session to change is backed up to standby equipment by part device.
The application proposes a kind of session backup method of multichannel agreement, first backs up master session, and control is based on when detecting
When the session characteristics that the data corresponding to multichannel agreement that connection negotiation processed goes out connect produce, the identification information of master session is connected
Backed up jointly with the session characteristics, standby equipment finds the master session of foregoing backup according to the identification information of master session, by institute
Session characteristics are stated to associate with master session.Standby equipment will be finally backuped to from session, and based between master session and session characteristics
Incidence relation, by master session with being associated from session.
The application can in backup by corresponding to the master session that connects of control with corresponding to that data are connected from session
Associate, the incidence relation of multichannel service conversation is consistent before and after backup, after avoiding backup, master session is from meeting
Bust this caused by aging before words.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of flow chart of the session backup method of the embodiment of the present application multichannel agreement；
Fig. 2 is another flow chart of the session backup method of the embodiment of the present application multichannel agreement；
Fig. 3 is a kind of schematic diagram of the session back-up device of the embodiment of the present application multichannel agreement；
Fig. 4 is another schematic diagram of the session back-up device of the embodiment of the present application multichannel agreement；
Fig. 5 is a kind of schematic diagram of session batch backup order of the embodiment of the present application multichannel agreement.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, implement below in conjunction with the present invention
Accompanying drawing in example, the technical scheme in the embodiment of the present invention is described in detail.
In network communications, for multichannel agreement, such as the agreement such as FTP, RTSP and SIP, when transmitting data, typically
The connection of two classes can be established, one kind is control connection, and one kind connects for data, and communicating pair can be based on a control connection association
Business goes out multiple ports and IP address, connects and uses for more datas.Control connection is mainly used in the transmission of control information, and control connects
Port information for establishing data connection etc. can be negotiated by connecing；Data are connected to data transfer.In data transmission procedure, control
Connection processed is constantly in connection status.If for control connection master session for data connect before session it is old
Change, Network Security Device may should cause the service disconnection between communicating pair from session packet loss.
In order to improve the reliability of network, two or multiple devices generally are disposed in the key point of network, by those equipment
In a wherein equipment be arranged to main equipment, miscellaneous equipment is then standby equipment.In order to realize that main equipment is delayed after machine, stand-by equipment
When taking over the task of main equipment, it can rapidly recover every business, main equipment can send session information to standby equipment, by
Standby equipment conversates backup.
In the prior art, can by Network Security Device be directed to control connection master session with for data connect from
Session association gets up, so as to control master session will not be in the aging before session.But prior art can only be standby when session is backed up
Incidence relation in itself, will not be backed up by part session.Therefore the session after backing up is likely to occur ageing time again not unite
One the problem of.
For this problem, this application provides a kind of session backup method of multichannel agreement, can be backed up in session
When by corresponding to control connect master session with correspond to data be connected from session association, make multichannel service conversation
Incidence relation be consistent before and after backup, after avoiding backup, master session transmits mistake caused by the aging before session
Lose.
Referring to accompanying drawing 1, accompanying drawing 1 is a kind of flow chart of the session backup method of the embodiment of the present application multichannel agreement.Such as
Shown in accompanying drawing 1, the flow may include following steps：
Master session is backuped to standby equipment by step S101, main equipment；
Interactive information between conversation recording in communication technology transport layer message, including source IP address, source port, mesh
IP address, destination interface, the VPN instance belonging to protocol type and source/destination IP address.Interactive information identical message belongs to
One stream a, it is generally the case that session corresponds to positive and negative two stream, and a stream corresponds to a session on a direction.
Master session, refer to the meeting that the session characteristics of the control connection based on multichannel agreement are established in Network Security Device
Words, wherein the relevant information of control connection is contained, such as IP address, port numbers etc. of the communicating pair of control connection, and net
Address information of control connection etc. is stored in network safety means.
For from sequencing, Network Security Device first establishes master session based on control connection, then control connection association
Business goes out the session characteristics used for data connection, then dialogue-based feature establishes data connection.As can be seen that master session is established
And when backing up, follow-up session characteristics and do not established also from session.Master session and the incidence relation from session in the host
Do not produce yet.The only master session oneself that can now back up.
On the premise of batch backup is needed, this step is except needing master session backuping to standby equipment, it is also necessary to will be right
Standby equipment should be backuped in the session of the connection of non-multi channel protocol.Backup sequence reference accompanying drawing 5.
Under normal circumstances, batch backup is the order according to ID marks from small to large, and the session information in conversational list is entered
Row backup, backup process is divided into Liang Ge branches by the present embodiment when carrying out batch backup.Branch one：Identified according to ID suitable
Sequence backs up master session and the session that should be connected in non-multi channel protocol successively, when running into from session, skips and is not backed up；Branch
One：According to ID marks order back up successively from session, when run into master session with should be in the session that non-multi channel protocol is connected when,
Skip and be not backed up.
Step S102, main equipment are persistently detected, until what is gone out based on control connection negotiation corresponds to multichannel agreement
Data connection session characteristics produce；
The session characteristics connected corresponding to the data of multichannel agreement refer to：Come out, be used for by control connection negotiation
Establish the session characteristics of data connection.The session characteristics of data connection just correspond to the data connection of the multichannel agreement
From the feature of session, wherein containing from the IP address of session and port number information etc..It is appreciated that：Obtain session characteristics
Afterwards, it becomes possible to information searching in dialogue-based feature to corresponding to this session characteristics from session.
In actual applications, session characteristics are usually ALG list items.
ALG (Application Level Gateway, ALG) is mainly used in completing the place to application layer message
Reason.For some multichannel agreements, it is necessary to be connected by data and controlled connection is common to complete, data establishment of connection dynamically by
Payload field information in control connection determines that ALG is responsible for completing the conversion of payload field information, to ensure that follow-up data connects
Correct foundation.Establishment of connection process is：Control connection-ALG-data connection.
The identification information of session characteristics and master session is backuped to standby equipment by step S103, main equipment；
In the present embodiment, the session characteristics that the identification information of master session is connected with corresponding to data are packed and sent out by main equipment
It is sent to standby equipment.The identification information of master session can be understood as the peculiar information of master session, and these peculiar information can be used for looking into
Look for corresponding master session.
In actual applications, usually using identification information of the five-tuple information as master session.
Step S104, standby equipment find the master session of foregoing backup according to the identification information of master session, it will words feature
Associated with master session；
Step S105, main equipment will backup to standby equipment from session；
Step S106, standby equipment is based on the incidence relation between master session and session characteristics, by master session with entering from session
Row association.
Session characteristics are contained from the IP address of session and port number information etc., and standby equipment can be according to these information searchings
It is corresponding from session, and it is foregoing session characteristics are associated with master session, therefore, this step can will with dialogue-based feature
Master session and get up from session association.
Referring to accompanying drawing 2, accompanying drawing 2 is another flow chart of the session backup method of the embodiment of the present application multichannel agreement.
As shown in Figure 2, the flow may include following steps：
Step S201, when monitoring that the session in session list changes, judge whether itself backs up in session
Connection status, if being not at session backup connection status, do not deal with, if being in session backup connection status, perform
Step S202；
Monitoring process can be provided with main equipment, whether the session information that the monitoring process is used to monitor in conversational list is sent out
Changing.It " session information changes " mentioned here, can be updated including session information, increase session information etc. newly.
Step S202, whether the session for judging to change is by batch backup, if performing step by batch backup
Rapid S203, if also not performing step S204 by batch backup；
Step S203, the session to change is backed up into standby equipment；
Wherein, it is necessary to using foregoing backup method, that is, accompanying drawing when the session to change being backed up into standby equipment
Backup method shown by 1 is backed up, so that session is backed up to for remaining to maintain the incidence relation of script after equipment.
Step S204, batch backup process is waited to carry out batch backup to the session to change.
In step S202 into step S204, it can be determined that whether the session to change is by batch backup, specifically,
Main equipment can get present batch and back up ID mark of the backuped to session in internal memory, and, it is generally the case that batch
Amount backup is the order according to ID marks from small to large, and the session information in conversational list is backed up, then can be according to hair
Whether the ID marks of the session for changing, judge to draw session information that this changes by batch backup.
Wherein, it is necessary to using foregoing backup side when backup process carries out batch backup to the session that changes
Method, that is, attached backup method illustrated in fig. 1 are backed up, so that session is backed up to for remaining to maintain the pass of script after equipment
Connection relation.
Referring to accompanying drawing 3, accompanying drawing 3 is a kind of schematic diagram of the session back-up device of the embodiment of the present application multichannel agreement.Such as
Shown in accompanying drawing 3, the device includes：First backup module 310, the second backup module 320, the first relating module 330, the second association
Module 340.
First backup module 310：Master session is backuped into standby equipment for main equipment；
Second backup module 320：Correspond to multichannel agreement based on what control connection negotiation went out for main equipment detection
The session characteristics of data connection, when the session characteristics produce, the identification information of master session is total to together with the session characteristics
It is same to backup to standby equipment；
First relating module 330：After identification information and the session characteristics of the master session being received for standby equipment,
The master session of foregoing backup is found according to the identification information of master session, the session characteristics are associated with master session；
Second relating module 340：Standby equipment will be backuped to from session for main equipment, standby equipment is based on master session and session
Incidence relation between feature, by master session with being associated from session.
Further, the first backup module 310 is specifically used for：By master session and the connection corresponding to non-multi channel protocol
Session backups to standby equipment.
Further, in the first relating module 330, based on the data corresponding to multichannel agreement for controlling connection negotiation to go out
The session characteristics of connection are the ALG list items that the data corresponding to multichannel agreement gone out based on control connection negotiation are connected.
Referring to accompanying drawing 4, accompanying drawing 4 is a kind of schematic diagram of the session back-up device of the embodiment of the present application multichannel agreement.Such as
Shown in accompanying drawing 4, the device includes：First judge module 410, the second judge module 420, the 3rd backup module 430.
First judge module 410：When session for monitoring in session list changes, judge whether itself is in
Session backup connection status；
Second judge module 420：For when itself is in session backup connection status, the session for judging to change to be
It is no by batch backup；
3rd backup module 430：For when the session to change by batch backup when, changed described
Session back up to standby equipment.
Wherein, the session to change is backed up into standby equipment and has used device described in accompanying drawing 3, so that session is standby
Remain to maintain the incidence relation of script after part to standby equipment.
Further, the session back-up device is specifically additionally operable to:If the session to change not by batch backup,
Batch backup process is then waited to carry out batch backup to the session to change.Wherein, batch backup process uses accompanying drawing 3
Described device carries out batch backup to the session to change, so that session remains to maintain originally after backing up to standby equipment
Incidence relation.
Each embodiment in the application is described by the way of progressive, identical similar part between each embodiment
Mutually referring to what each embodiment stressed is the difference with other embodiment.Implement especially for device
For example, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to embodiment of the method
Part illustrates.Device embodiment described above is only schematical, illustrates wherein described as separating component
Module can be or may not be physically separate, can be as the part that module is shown or may not be thing
Manage unit, you can with positioned at a place, or can also be distributed on multiple NEs.It can select according to the actual needs
Some or all of module therein is selected to realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying wound
In the case that the property made is worked, you can to understand and implement.
The preferred embodiment of the application is the foregoing is only, not limiting the application, all essences in the application
God any modification, equivalent substitution and improvements done etc., should be included within the scope of the application protection with principle.
Claims (10)
1. a kind of session backup method of multichannel agreement, it is characterised in that methods described is applied to main equipment and standby equipment group
Into Network Security Device system, the session list of the Network Security Device system includes：Corresponding to for pre-establishing is described
The master session of the control connection of multichannel agreement, the data corresponding to the multichannel agreement associated with the master session are connected
Include from session, methods described：
Master session is backuped to standby equipment by main equipment；
The session characteristics that main equipment detection is connected based on the data corresponding to multichannel agreement that control connection negotiation goes out, when described
When session characteristics produce, the identification information of master session is backuped into standby equipment jointly together with the session characteristics；
After standby equipment receives identification information and the session characteristics of the master session, searched according to the identification information of master session
To the master session of foregoing backup, the session characteristics are associated with master session；
Main equipment will backup to alternate device from session, and standby equipment, will based on the incidence relation between master session and session characteristics
Master session from session with being associated.
2. according to the method for claim 1, it is characterised in that described to correspond to multichannel based on what control connection negotiation went out
The session characteristics of the data connection of agreement are the ALG that the data corresponding to multichannel agreement gone out based on control connection negotiation are connected
List item.
3. according to the method for claim 1, it is characterised in that described backup to master session includes for equipment：
Standby equipment is backuped to by master session and corresponding to the session of the connection of non-multi channel protocol.
4. a kind of session backup method of multichannel agreement, it is characterised in that methods described is applied to main equipment and standby equipment group
Into Network Security Device system, methods described includes：
When monitoring that the session in session list changes, judge whether itself is in session backup connection status；
If itself being in session backup connection status, whether the session for judging to change is by batch backup；
If by batch backup, the method described in usage right requirement 1 changes described for the session to change
Session back up to standby equipment.
5. according to the method for claim 4, it is characterised in that methods described also includes：If the session to change
Not by batch backup, then the method described in batch backup process usage right requirement 1 is waited to enter the session to change
Row batch backup.
6. a kind of session back-up device of multichannel agreement, it is characterised in that described device is applied to main equipment and standby equipment group
Into Network Security Device system, the session list of the Network Security Device system includes：Corresponding to for pre-establishing is described
The master session of the control connection of multichannel agreement, the data corresponding to the multichannel agreement associated with the master session are connected
Include from session, described device：
First backup module：Master session is backuped into standby equipment for main equipment；
Second backup module：Connected for main equipment detection based on the data corresponding to multichannel agreement that control connection negotiation goes out
Session characteristics, when the session characteristics produce, the identification information of master session is backuped to jointly together with the session characteristics
Standby equipment；
First relating module：After receiving identification information and the session characteristics of the master session for standby equipment, according to master
The identification information of session finds the master session of foregoing backup, and the session characteristics are associated with master session；
Second relating module：To backup to standby equipment from session for main equipment, standby equipment be based on master session and session characteristics it
Between incidence relation, by master session with being associated from session.
7. device according to claim 6, it is characterised in that described to correspond to multichannel based on what control connection negotiation went out
The session characteristics of the data connection of agreement are the ALG that the data corresponding to multichannel agreement gone out based on control connection negotiation are connected
List item.
8. device according to claim 6, it is characterised in that first backup module, be specifically used for：
Standby equipment is backuped to by master session and corresponding to the session of the connection of non-multi channel protocol.
9. a kind of session back-up device of multichannel agreement, it is characterised in that described device is applied to main equipment and standby equipment group
Into Network Security Device system, described device includes：
First judge module：When session for monitoring in session list changes, judge whether itself is standby in session
Part connection status；
Second judge module：For the session that when itself is in session backup connection status, judges to change whether by
Batch backup；
3rd backup module：For when the session to change by batch backup when, usage right requirement 6 described in dress
Put and the session to change is backed up into standby equipment.
10. device according to claim 9, it is characterised in that described device is specifically additionally operable to：
If the session to change by batch backup, does not wait the dress described in batch backup process usage right requirement 6
Put and batch backup is carried out to the session to change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710936760.7A CN107749873A (en) | 2017-10-10 | 2017-10-10 | The session backup method and device of a kind of multichannel agreement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710936760.7A CN107749873A (en) | 2017-10-10 | 2017-10-10 | The session backup method and device of a kind of multichannel agreement |
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| CN107749873A true CN107749873A (en) | 2018-03-02 |
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| CN201710936760.7A Pending CN107749873A (en) | 2017-10-10 | 2017-10-10 | The session backup method and device of a kind of multichannel agreement |
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| CN109743384A (en) * | 2018-12-29 | 2019-05-10 | 杭州迪普科技股份有限公司 | A kind of method and apparatus of test session no-load speed |
| CN111935060A (en) * | 2019-12-26 | 2020-11-13 | 长扬科技（北京）有限公司 | Method for aggregating network communication session |
| CN114024998A (en) * | 2021-11-11 | 2022-02-08 | 瑞斯康达科技发展股份有限公司 | Method and device for supporting multiple sessions based on netconf protocol |
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| US20140040466A1 (en) * | 2011-04-19 | 2014-02-06 | Huawei Technologies Co., Ltd. | Method and router for packet processing during server failure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109743384A (en) * | 2018-12-29 | 2019-05-10 | 杭州迪普科技股份有限公司 | A kind of method and apparatus of test session no-load speed |
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| CN114024998A (en) * | 2021-11-11 | 2022-02-08 | 瑞斯康达科技发展股份有限公司 | Method and device for supporting multiple sessions based on netconf protocol |
| CN114024998B (en) * | 2021-11-11 | 2023-05-23 | 瑞斯康达科技发展股份有限公司 | Method and device for supporting multiple sessions based on netconf protocol |
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