CN112332906A - Link switching method and device based on satellite communication - Google Patents
Link switching method and device based on satellite communication Download PDFInfo
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- CN112332906A CN112332906A CN202011233200.3A CN202011233200A CN112332906A CN 112332906 A CN112332906 A CN 112332906A CN 202011233200 A CN202011233200 A CN 202011233200A CN 112332906 A CN112332906 A CN 112332906A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L47/00—Traffic control in data switching networks
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- H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
- H04L47/765—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions triggered by the end-points
- H04L47/767—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions triggered by the end-points after changing the attachment point, e.g. after hand-off
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Abstract
The invention provides a link switching method and device based on satellite communication. The method comprises the following steps: determining the state information of a core switch hot standby group and a data management server hot standby group in a main center; under the condition that the state information meets the switching condition of the working link in the main center, switching from the failed working link to a normal working link of the main center except the failed working link according to the state information, wherein the main center comprises a plurality of working links; and under the condition that the state information does not meet the switching condition of the working link in the main center, switching from the main center to the standby center is performed, so that the internal link switching of the main center and the switching of the main and standby centers are automatically realized, manual operation is not needed, and the safety and the reliability of the safety data management center are improved.
Description
Technical Field
The invention relates to the field of satellite communication, in particular to a link switching method and device based on satellite communication.
Background
The safety data management center is responsible for safely storing the satellite communication data.
Under normal conditions, the safety data management center works in a main safety data management center (called the main center for short) working mode. In the mode, all services are processed in the main center, and the Ka and Ku satellite communication master stations mirror the service data to the main safety data management center through the optical fiber private network for storage. When the failure of the main center causes that all 4 working links can not work normally, the standby center takes over the work of the main center. Under the working mode of the standby center, all data services are mirrored to the standby center by Ka and Ku satellite communication master stations through the optical fiber private network for storage. The operation management server is responsible for monitoring the equipment parameters of the main center and the standby center and judging whether the equipment normally operates according to the parameters.
At present, for the switching of the link, a worker needs to manually switch, and needs to manually check which equipment fails according to parameters, and determine how to switch the link based on the failed equipment, so that the operation is complex and the switching error is easy.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects of the prior art are overcome, and a link switching method and a link switching device based on satellite communication are provided.
In order to solve the above technical problem, the present invention provides a link switching method based on satellite communication, wherein the method includes:
determining the state information of a core switch hot standby group and a data management server hot standby group in a main center;
under the condition that the state information meets the switching condition of the working link in the main center, switching from the failed working link to a normal working link of the main center except the failed working link according to the state information, wherein the main center comprises a plurality of working links;
and under the condition that the state information does not meet the switching condition of the working link in the main center, switching from the main center to the standby center.
Optionally, the master center includes a first working link, a second working link, a third working link, and a fourth working link, and when the state information satisfies a switching condition of a working link inside the master center, the step of switching from the failed working link to a normal working link of the master center other than the failed working link according to the state information includes:
when the status information indicates a failure of a p1p1 network card of a primary data management server of the primary center or a failure of a primary core switch, causing the first working link to fail, and the second working link, the third working link and the fourth working link are all normal, the first working link is switched to the second working link, wherein the priority of the second working link is higher than that of the third working link, the priority of the third working link is higher than that of the fourth working link, the first working link is data interaction between a main core switch of the main center and a main data management server of the main center, the second working link is the data interaction between the main data management server of the main center and the standby core switch of the main center, the third working link is data interaction between a main core switch of the main center and a standby data management server of the main center; the fourth working link is data interaction between the standby core switch of the main center and the standby data management server of the main center.
Optionally, when the state information satisfies a switching condition of an internal working link of the main center, the step of switching from the failed working link to a normal working link of the main center other than the failed working link according to the state information includes:
and when the state information indicates that the main data management server of the main center fails, so that both the first working link and the second working link fail, switching to a third working link.
Optionally, when the state information satisfies a switching condition of an internal working link of the main center, the step of switching from the failed working link to a normal working link of the main center other than the failed working link according to the state information includes:
and when the state information indicates that the communication faults occur in the main core switch of the main center and the main data management server of the main center, and the first working link, the second working link and the third working link are all in faults, switching to a fourth working link.
Optionally, the step of switching from the main center to the standby center when the state information does not satisfy the switching condition of the working link inside the main center includes:
if the state information meets the preset condition, determining that the state information does not meet the switching condition of the working link in the main center;
switching from a main center to a standby center, wherein the switching condition of the working link in the main center is not met comprises the following steps: and when any one of the server of the core switch hot standby group of the main center is not normally operated, the network card of the data management server hot standby group of the main center cannot be used, the server of the data management server hot standby group of the main center is not normally operated, the 8080 port of the data management server hot standby group of the main center cannot be connected, the server of the database server hot standby group cannot be normally operated and the application port of the database server hot standby group cannot be connected, switching the main center to the standby center.
In order to solve the above technical problem, the present invention further provides a link switching apparatus based on satellite communication, including:
the determining module is used for determining the state information of the core switch hot standby group and the data management server hot standby group in the main center;
the first switching module is used for switching the working link with the fault to a normal working link of the main center except the working link with the fault according to the state information under the condition that the state information meets the switching condition of the working link in the main center, wherein the main center comprises a plurality of working links;
and the second switching module is used for switching the main center to the standby center under the condition that the state information does not meet the switching condition of the working link in the main center.
Optionally, the master center includes a first working link, a second working link, a third working link, and a fourth working link, and the first switching module includes:
the first switching submodule is used for switching from the first working link to the second working link when the state information indicates that a p1p1 network card of a main data management server of the main center fails or a main core switch fails and the first working link fails and the second working link, the third working link and the fourth working link are all normal, wherein the priority of the second working link is higher than that of the third working link, and the priority of the third working link is higher than that of the fourth working link; the first working link is data interaction between a main core switch of the main center and the main data management server of the main center; the second working link is data interaction between the main data management server of the main center and a standby core switch of the main center; the third working link is data interaction between a main core switch of the main center and a standby data management server of the main center; the fourth working link is data interaction between the standby core switch of the main center and the standby data management server of the main center.
Optionally, the first switching module comprises:
and the second switching submodule is used for switching to a third working link when the state information indicates that the main data management server of the main center fails, so that both the first working link and the second working link fail.
Optionally, the first switching module comprises:
and the third switching submodule is used for switching to a fourth working link when the state information indicates that the communication faults occur in the main core switch of the main center and the main data management server of the main center, and the first working link, the second working link and the third working link are all in faults.
Optionally, the second switching module includes:
the determining submodule is used for determining that the state information does not meet the switching condition of the working link in the main center when the state information meets the preset condition;
a fourth switching submodule, configured to switch from a master center to a standby center, where a switching condition that does not satisfy an internal working link of the master center includes: and when any one of the server of the core switch hot standby group of the main center is not normally operated, the network card of the data management server hot standby group of the main center cannot be used, the server of the data management server hot standby group of the main center is not normally operated, the 8080 port of the data management server hot standby group of the main center cannot be connected, the server of the database server hot standby group cannot be normally operated and the application port of the database server hot standby group cannot be connected, switching the main center to the standby center.
Compared with the prior art, the invention has the advantages that: according to the scheme provided by the embodiment of the invention, the state information of the core switch hot standby group and the data management server hot standby group in the main center is determined; under the condition that the state information meets the switching condition of the working link in the main center, switching from the failed working link to a normal working link of the main center except the failed working link according to the state information, wherein the main center comprises a plurality of working links; and under the condition that the state information does not meet the switching condition of the working link in the main center, switching from the main center to the standby center to realize automatic link switching and improve the safety and reliability of the safety data management center.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for switching a link based on satellite communication according to an embodiment of the present invention;
FIG. 2 is a diagram of a master center operating mode provided by an embodiment of the present invention;
fig. 3 is a schematic diagram of a network card fault of a master data management server p1p1 in the master center according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a master core switch failure in a master hub according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a link switch according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating that a network card of a master data management server of a master center is unavailable according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the abnormal operation of the master data management server of the master center according to the embodiment of the present invention;
FIG. 8 is a schematic diagram of a master data management server 8080 port failure in the master center according to an embodiment of the present invention;
FIG. 9 is a second schematic diagram illustrating link switching according to the second embodiment of the present invention;
fig. 10 is a schematic diagram illustrating a failure of a primary core switch of a primary center and unavailability of a network card of a primary data management server of the primary center according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a primary core switch failure at a primary center and a primary data management server failure at the primary center according to an embodiment of the invention;
fig. 12 is a schematic diagram of a failure of a primary core switch of a primary center and a failure of a primary data management server 8080 port of the primary center according to an embodiment of the present invention;
FIG. 13 is a third exemplary link switching diagram according to the present invention;
FIG. 14 is a schematic diagram illustrating an embodiment of switching a master center to a standby center;
fig. 15 is a block diagram of a link switching apparatus based on satellite communication according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flowchart illustrating steps of a method for switching a link based on satellite communication according to an embodiment of the present invention is shown, and as shown in fig. 1, the method may specifically include the following steps:
the master center includes a first working link, a second working link, a third working link, and a fourth working link.
The core equipment of the main center comprises a main core switch, a main data management server, a standby core switch and a standby data management server.
Step 110: and determining the state information of the core switch hot standby group and the data management server hot standby group in the main center.
The core switch hot standby group in the main center comprises a main core switch and a standby core switch, and the data management server hot standby group in the main center comprises a main data management server and a standby data management server.
The link switching method is applied to a satellite communication system including a main center and a backup center, and fig. 2 shows a main center operation mode diagram.
Step 120: and under the condition that the state information meets the switching condition of the working link in the main center, switching from the failed working link to a normal working link of the main center except the failed working link according to the state information.
Wherein the master center comprises a plurality of working links.
In a specific implementation manner of the present invention, the step 120 may include:
substep A1: when the state information indicates that a p1p1 network card of a master data management server of the master center fails or a master core switch fails (indicating that the first working link fails), and the second working link, the third working link and the fourth working link are all normal, switching from the first working link to the second working link, wherein the priority of the second working link is higher than that of the third working link, and the priority of the third working link is higher than that of the fourth working link. The first working link is data interaction between a main core switch of the main center and the main data management server of the main center; the second working link is data interaction between the main data management server of the main center and a standby core switch of the main center; the third working link is data interaction between a main core switch of the main center and a standby data management server of the main center; the fourth working link is data interaction between the standby core switch of the main center and the standby data management server of the main center.
Five working links, namely a first working link, a second working link, a third working link, a fourth working link and a fifth working link, namely L1, L2, L3, L4 and L5 are formed between the main center and the standby center, wherein L1-L4 are located at the main center, and L5 is located at the standby center. The connection situation is shown in fig. 3, where s1-s12 represents mirror image sessions, p1p1 and p1p2 represent network cards, PING represents whether the server is operating normally, and PORT represents whether the PORT is operating normally. And preferentially judging whether the switching conditions of the working links L1-L4 in the main center are met or not according to the state information of the core switch hot standby group and the data management server hot standby group in the monitoring main center, and if so, switching the system to the corresponding working link to realize the switching in the main center. If not, the switching between the main center and the standby center is executed.
The normal working link inside the main center is L1, and when the hot standby group of the core switch and the hot standby group of the data management server fail, the service flow cannot reach the inside of the secure data management center. At this time, the main center should execute the following switching strategy on the service data;
if the p1p1 network card of the main data management server of the main center fails or the main core switch of the main center fails, other ports and servers are normal, as shown in fig. 3 and 4. The system performs a handover of the working link to L2, the result of which is shown in fig. 5.
Substep B1: and when the state information indicates that the main data management server of the main center fails, so that both the first working link and the second working link fail, switching to a third working link.
If the master data management server of the master center fails (e.g. none of p1p1, p1p2 is available, server, 8080 port fails) and the other ports, the server is normal, as shown in fig. 6, 7, 8. The system executes the handover to working link L3 policy, the result of which is shown in fig. 9.
Substep C1: and when the state information indicates that the communication faults occur in the main core switch of the main center and the main data management server of the main center, and the first working link, the second working link and the third working link are all in faults, switching to a fourth working link.
If the communication failure occurs between the main core switch of the main center and the main data management server of the main center, and the other ports and servers are normal, as shown in fig. 10, 11 and 12, the switching is performed to the working link L4, and the switching result is shown in fig. 13.
Step 130: and under the condition that the state information does not meet the switching condition of the working link in the main center, switching from the main center to the standby center.
In a specific implementation manner of the present invention, the step 130 may include:
substep D1: and when the state information meets the preset condition, determining that the state information does not meet the switching condition of the working link in the main center.
Substep D2: switching from the main center to the standby center. When any one of the following conditions occurs, switching from the main center to the standby center:
the server of the core switch hot standby group of the main center does not normally operate;
network cards of the data management server hot standby group of the main center cannot be used;
the server of the data management server hot standby group of the main center does not normally operate;
the 8080 ports of the data management server hot standby group of the main center cannot be connected;
the server of the database server hot standby group does not normally operate;
the application ports of the database server hot standby group cannot be connected.
When the failure of the main center causes that all 4 working links can not work normally, the standby center takes over the work of the main center. Under the working mode of the standby center, all data services are mirrored to the standby center by Ka and Ku satellite communication master stations through the optical fiber private network for storage. The operation management server is responsible for monitoring the equipment parameters of the main center and the standby center and judging whether the equipment normally operates according to the parameters.
Fig. 14 is a schematic diagram illustrating the result of the active/standby switching.
According to the scheme provided by the embodiment of the invention, the state information of the core switch hot standby group and the data management server hot standby group in the main center is determined; under the condition that the state information meets the switching condition of the working link in the main center, switching from the failed working link to a normal working link of the main center except the failed working link according to the state information, wherein the main center comprises a plurality of working links; and under the condition that the state information does not meet the switching condition of the working link in the main center, switching from the main center to the standby center to realize automatic link switching and improve the safety and reliability of the safety data management center.
Referring to fig. 15, a link switching apparatus based on satellite communication according to an embodiment of the present invention is shown.
As shown in fig. 15, the link switching apparatus based on satellite communication includes: a determining module 201, configured to determine state information of a core switch hot standby group and a data management server hot standby group inside a main center;
a first switching module 202, configured to switch, according to the state information, from a failed working link to a normal working link of a master center except the failed working link when the state information meets a switching condition of a working link inside the master center, where the master center includes multiple working links;
and a second switching module 203, configured to switch the main center to the standby center when the state information does not satisfy the switching condition of the working link inside the main center.
Optionally, the master center includes that the master center includes a first working link, a second working link, a third working link, and a fourth working link, and the first switching module includes:
and a first switching submodule, configured to switch, when the state information indicates that a p1p1 network card of a master data management server of the master center fails or a master core switch fails (that is, the first working link fails), and the second working link, the third working link, and the fourth working link are all normal, from the first working link to the second working link, where a priority of the second working link is higher than a priority of the third working link, and a priority of the third working link is higher than a priority of the fourth working link. The first working link is data interaction between a main core switch of the main center and a main data management server of the main center, the second working link is data interaction between the main data management server of the main center and a standby core switch of the main center, and the third working link is data interaction between the main core switch of the main center and the standby data management server of the main center; the fourth working link is data interaction between the standby core switch of the main center and the standby data management server of the main center.
Optionally, the first switching module comprises:
and the second switching submodule is used for switching to a third working link when the state information indicates that the main data management server of the main center fails to cause that both the first working link and the second working link fail.
Optionally, the first switching module comprises:
and the third switching submodule is used for switching to a fourth working link when the state information indicates that the communication faults occur in the main core switch of the main center and the main data management server of the main center, and the first working link, the second working link and the third working link are all in faults.
Optionally, the second switching module includes:
the determining submodule is used for determining that the state information does not meet the switching condition of the working link in the main center when the state information meets the preset condition;
the fourth switching submodule is used for switching from the main center to the standby center, and when any one of the following conditions occurs, switching from the main center to the standby center is carried out:
(1) the server of the core switch hot standby group of the main center does not normally operate;
(2) network cards of the data management server hot standby group of the main center cannot be used;
(3) the server of the data management server hot standby group of the main center does not normally operate;
(4) the 8080 ports of the data management server hot standby group of the main center cannot be connected;
(5) the server of the database server hot standby group does not normally operate;
(6) the application ports of the database server hot standby group cannot be connected.
According to the scheme provided by the embodiment of the invention, the state information of the core switch hot standby group and the data management server hot standby group in the main center is determined; under the condition that the state information meets the switching condition of the working link in the main center, switching from the failed working link to a normal working link of the main center except the failed working link according to the state information, wherein the main center comprises a plurality of working links; and under the condition that the state information does not meet the switching condition of the working link in the main center, switching from the main center to the standby center to realize automatic link switching and improve the safety and reliability of the safety data management center.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (10)
1. A method for switching a link based on satellite communication, the method comprising:
determining the state information of a core switch hot standby group and a data management server hot standby group in a main center;
under the condition that the state information meets the switching condition of the working link in the main center, switching from the failed working link to a normal working link of the main center except the failed working link according to the state information, wherein the main center comprises a plurality of working links;
and under the condition that the state information does not meet the switching condition of the working link in the main center, switching from the main center to the standby center.
2. The method according to claim 1, wherein the master center includes a first working link, a second working link, a third working link and a fourth working link, and in the case that the status information satisfies a switching condition of the working link inside the master center, the step of switching from the failed working link to the normal working link of the master center except the failed working link according to the status information includes:
when the state information indicates that a p1p1 network card of a main data management server of the main center fails or a main core switch fails, the first working link fails, and the second working link, the third working link and the fourth working link are all normal, switching from the first working link to the second working link, wherein the priority of the second working link is higher than that of the third working link, and the priority of the third working link is higher than that of the fourth working link; the first working link is data interaction between a main core switch of the main center and the main data management server of the main center; the second working link is data interaction between the data management server of the main center and a standby core switch of the main center; the third working link is data interaction between a main core switch of the main center and a standby data management server of the main center; the fourth working link is data interaction between the standby core switch of the main center and the standby data management server of the main center.
3. The method according to claim 2, wherein in case that the status information satisfies a switching condition of the working link inside the main center, the step of switching from the failed working link to the normal working link of the main center except the failed working link according to the status information comprises:
and when the state information indicates that the main data management server of the main center fails, so that the first working link and the second working link both fail, switching to a third working link.
4. The method according to claim 2, wherein in case that the status information satisfies a switching condition of the working link inside the main center, the step of switching from the failed working link to the normal working link of the main center except the failed working link according to the status information comprises:
and when the state information indicates that the communication faults occur in the main core switch of the main center and the main data management server of the main center, and the first working link, the second working link and the third working link are all in faults, switching to a fourth working link.
5. The method according to any one of claims 1 to 4, wherein in the case that the status information does not satisfy the switching condition of the working link inside the main center, the step of switching from the main center to the standby center includes:
if the state information meets the preset condition, determining that the state information does not meet the switching condition of the working link in the main center;
switching from a main center to a standby center, wherein the switching condition of the working link in the main center is not met comprises the following steps: the method comprises the following steps that a server of a core switch hot standby group of a main center does not normally operate, a network card of a data management server hot standby group of the main center cannot be used, a server of the data management server hot standby group of the main center does not normally operate, a 8080 port of the data management server hot standby group of the main center cannot be connected, a server of a database server hot standby group does not normally operate, and an application port of the database server hot standby group cannot be connected.
6. A link switching apparatus based on satellite communication, the apparatus comprising:
the determining module is used for determining the state information of the core switch hot standby group and the data management server hot standby group in the main center;
the first switching module is used for switching the working link with the fault to a normal working link of the main center except the working link with the fault according to the state information under the condition that the state information meets the switching condition of the working link in the main center, wherein the main center comprises a plurality of working links;
and the second switching module is used for switching the main center to the standby center under the condition that the state information does not meet the switching condition of the working link in the main center.
7. The apparatus of claim 6, wherein the master center comprises a first working link, a second working link, a third working link, and a fourth working link, and wherein the first switching module comprises:
a first switching sub-module, configured to, when the state information indicates that a p1p1 network card of a primary data management server of the primary center fails or a primary core switch fails, cause the first working link to fail, and the second working link, the third working link, and the fourth working link are all normal, switch from the first working link to the second working link, where a priority of the second working link is higher than a priority of the third working link, a priority of the third working link is higher than a priority of the fourth working link, the first working link is data interaction between the primary core switch of the primary center and the primary data management server of the primary center, the second working link is data interaction between the data management server of the primary center and a backup core switch of the primary center, and the third working link is the number of the primary core switch of the primary center and the backup data management server of the primary center According to the interaction; the fourth working link is data interaction between the standby core switch of the main center and the standby data management server of the main center.
8. The apparatus of claim 7, wherein the first switching module comprises:
and the second switching submodule is used for switching to a third working link when the state information indicates that the main data management server of the main center fails to cause that both the first working link and the second working link fail.
9. The apparatus of claim 7, wherein the first switching module comprises:
and the third switching submodule is used for switching to a fourth working link when the state information indicates that the communication faults occur in the main core switch of the main center and the main data management server of the main center, and the first working link, the second working link and the third working link are all in faults.
10. The apparatus of claim 6, wherein the second switching module comprises:
the determining submodule is used for determining that the state information does not meet the switching condition of the working link in the main center when the state information meets the preset condition;
a fourth switching submodule, configured to switch from a master center to a standby center, where a switching condition that does not satisfy an internal working link of the master center includes: and when any one of the server of the core switch hot standby group of the main center is not normally operated, the network card of the data management server hot standby group of the main center cannot be used, the server of the data management server hot standby group of the main center is not normally operated, the 8080 port of the data management server hot standby group of the main center cannot be connected, the server of the database server hot standby group cannot be normally operated and the application port of the database server hot standby group cannot be connected, switching the main center to the standby center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011233200.3A CN112332906A (en) | 2020-11-06 | 2020-11-06 | Link switching method and device based on satellite communication |
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