CN113507383A - Route management method, device, equipment and machine readable storage medium - Google Patents
Route management method, device, equipment and machine readable storage medium Download PDFInfo
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- CN113507383A CN113507383A CN202110659180.4A CN202110659180A CN113507383A CN 113507383 A CN113507383 A CN 113507383A CN 202110659180 A CN202110659180 A CN 202110659180A CN 113507383 A CN113507383 A CN 113507383A
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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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- 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
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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- 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
- H04L45/58—Association of routers
- H04L45/586—Association of routers of virtual routers
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Abstract
The present disclosure provides a route management method, apparatus, device and machine-readable storage medium, the method comprising: establishing VRRP connection with the standby equipment, and generating a virtual IP address according to the election result as the main equipment; sending hello message with source IP address as virtual IP address, and establishing OSPF neighbor associated with virtual IP address with opposite terminal equipment according to response associated with hello message; and learning the routing information associated with the virtual IP address according to an OSPF routing protocol, and distributing the routing information to the associated equipment. According to the technical scheme, the main device establishes an OSPF neighbor with the associated device through the hello message with the source IP address as the virtual IP address, and the network system uses the virtual IP address to calculate the routing information, so that when the main device fails and the standby device continues to use the virtual IP address to process services, the upstream device and the downstream device do not need to recalculate the routing path.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a machine-readable storage medium for route management.
Background
OSPF (Open short Path First) is an Interior Gateway Protocol (IGP) used for routing decision in an Autonomous System (AS). The method is an implementation of a link state routing protocol, which belongs to an Interior Gateway Protocol (IGP), and therefore operates in an autonomous system. OSPF supports load balancing and service type based routing, as well as multiple forms of routing, such as specific host routing and subnet routing.
VRRP (Virtual Router Redundancy Protocol) is a selective Protocol that can dynamically allocate responsibility of a Virtual Router to one of the VRRP routers on the local area network. The VRRP router that controls the virtual router IP addresses is called the master router, which is responsible for forwarding packets to these virtual IP addresses. This selection process provides a dynamic failover mechanism once the primary router is unavailable, which allows the IP address of the virtual router to act as the default first hop router for the end host. Is a backup protocol of LAN access equipment. All hosts in a local area network are provided with default gateways, so that messages sent by the hosts and having destination addresses which are not in the network segment are sent to the three-layer switch through the default gateways, and communication between the hosts and an external network is realized.
When VRRP networking, the main equipment device A and the standby equipment device B are used as a virtual network device, and a virtual IP is provided for upstream and downstream equipment as a gateway. However, the OSPF routing protocol can only establish OSPF neighbors with upstream and downstream devices through the main IP address of the device interface, and cannot establish neighbors through the provided virtual IP address, which may cause the next hop of the route learned by the upstream and downstream devices to be the device interface IP instead of the virtual IP of the VRRP. When devcie a fails, the upstream and downstream devices can only perform the routing calculation again and switch to device B, which may cause service interruption during the routing calculation.
Disclosure of Invention
In view of the above, the present disclosure provides a route management method, a route management apparatus, an electronic device, and a machine-readable storage medium, so as to solve the problem of service interruption caused by route switching when the main device fails.
The specific technical scheme is as follows:
the present disclosure provides a routing management method, which is applied to a master device of a dual-machine backup system, and the method includes: establishing VRRP connection with the standby equipment, and generating a VRRP virtual IP address according to the election result as the main equipment; sending hello message with source IP address as VRRP virtual IP address, and establishing OSPF neighbor associated with VRRP virtual IP address with opposite terminal equipment according to response associated with hello message; and learning the routing information associated with the VRRP virtual IP address according to an OSPF routing protocol, and distributing the routing information to the associated equipment.
As a technical solution, the creating an OSPF neighbor associated with a VRRP virtual IP address with an opposite end device according to a hello packet whose source IP address is the VRRP virtual IP address and an answer associated with the hello packet includes: and adding a VRRP virtual IP address to the management unit, and distributing the related MAC address and the related VRRP main interface for the VRRP virtual IP address.
As a technical solution, the creating an OSPF neighbor associated with a VRRP virtual IP address with an opposite end device according to a hello packet whose source IP address is the VRRP virtual IP address and an answer associated with the hello packet includes: and exchanging DD message and LSR message related to VRRP virtual IP address with opposite terminal equipment for establishing OSPF neighbor.
As a technical scheme, the data is synchronized with the standby equipment of the dual-computer backup system, so that the standby equipment uses the VRRP virtual IP address to process services when the main equipment fails.
The present disclosure also provides a routing management device, which is applied to a master device of a dual-machine backup system, and the device includes: the address unit is used for establishing VRRP connection with the standby equipment and generating a VRRP virtual IP address according to the election result of the main equipment; the message unit is used for sending a hello message with a source IP address being a VRRP virtual IP address, and establishing an OSPF neighbor associated with the VRRP virtual IP address with opposite-end equipment according to a response associated with the hello message; and the routing unit is used for learning the routing information associated with the VRRP virtual IP address according to the OSPF routing protocol and distributing the routing information to the associated equipment.
As a technical solution, the creating an OSPF neighbor associated with a VRRP virtual IP address with an opposite end device according to a hello packet whose source IP address is the VRRP virtual IP address and an answer associated with the hello packet includes: and adding a VRRP virtual IP address to the management unit, and distributing the related MAC address and the related VRRP main interface for the VRRP virtual IP address.
As a technical solution, the creating an OSPF neighbor associated with a VRRP virtual IP address with an opposite end device according to a hello packet whose source IP address is the VRRP virtual IP address and an answer associated with the hello packet includes: and exchanging DD message and LSR message related to VRRP virtual IP address with opposite terminal equipment for establishing OSPF neighbor.
As a technical scheme, the data is synchronized with the standby equipment of the dual-computer backup system, so that the standby equipment uses the VRRP virtual IP address to process services when the main equipment fails.
The present disclosure also provides an electronic device including a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor executing the machine-executable instructions to implement the aforementioned route management method.
The present disclosure also provides a machine-readable storage medium having stored thereon machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement the aforementioned route management method.
The technical scheme provided by the disclosure at least brings the following beneficial effects:
the main device establishes OSPF neighbors with the associated devices through hello messages with source IP addresses being VRRP virtual IP addresses, and enables a network system to calculate routing information by using the VRRP virtual IP addresses, so that when the main device fails and the standby device continues to use the VRRP virtual IP addresses to process services, the upstream device and the downstream device do not need to recalculate routing paths, and service interruption caused by routing recalculation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present disclosure or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings can be obtained by those skilled in the art according to the drawings of the embodiments of the present disclosure.
FIG. 1 is a flow chart of a method of route management in one embodiment of the present disclosure;
FIG. 2 is a block diagram of a route management device in one embodiment of the present disclosure;
fig. 3 is a hardware configuration diagram of an electronic device in an embodiment of the present disclosure.
Detailed Description
The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein is meant to encompass any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. Depending on the context, moreover, the word "if" as used may be interpreted as "at … …" or "when … …" or "in response to a determination".
In a network environment, the transmission quantity of network information gradually increases, a higher stability requirement is also provided for network equipment, redundancy backup is generally carried out on the equipment as a common solution, when a host fails, a service is switched to a standby machine to prevent service interruption, and the VRRP technology not only provides a virtual IP gateway for an intranet user to serve as a default gateway to realize dynamic and timely sensing of equipment link conditions.
The main equipment and the standby equipment elect the main equipment as a master to undertake the forwarding task through VRRP election, the standby equipment serves as a backup, the main equipment and the standby equipment serve as a virtual router to provide a virtual IP as a default gateway of other associated equipment, and when the main equipment fails, the standby equipment is lifted to the master to use the same virtual IP as a gateway of a private network to undertake the forwarding task so as to ensure that the service is not interrupted.
With the continuous update of network topology, there is a higher requirement for VRRP networking, and not only needs to be used as a default gateway for a local area network user, but also more applications are applied to other locations in network transmission to ensure the reliability of links, for example, often applied to network exit locations. And at the network exit position, gateway IP is provided for the public network and the private network simultaneously, at the moment, the Device A is elected as a master to take on a forwarding task through VRRP for ensuring the reliability of the link, the Device B is used as a backup, and virtual IP is provided for the private network and the public network as gateways. At this time, the network uplink and downlink may need accurate routing direction for the network device, the workload of manually configuring static routes one by one to assign the routes is too large because only the default gateway is configured to be unable to completely meet the service requirement, and the network topology may change frequently and need to perform routing calculation quickly, and OSPF dynamic routes are usually used for routing distribution. The service which needs to be directed to the public network can be quickly distributed to the network equipment of the private network through the routing distribution.
When VRRP networking, the main equipment device A and the standby equipment device B are used as a virtual network device, and a virtual IP is provided for upstream and downstream equipment as a gateway. However, the OSPF routing protocol can only establish OSPF neighbors with upstream and downstream devices through the main IP address of the device interface, and cannot establish neighbors through the provided virtual IP address, which may cause the next hop of the route learned by the upstream and downstream devices to be the device interface IP instead of the virtual IP of the VRRP. When devcie a fails, the upstream and downstream devices can only perform the routing calculation again and switch to device B, which may cause service interruption during the routing calculation.
In view of the above, the present disclosure provides a route management method, a route management apparatus, an electronic device, and a machine-readable storage medium, so as to solve the problem of service interruption caused by route switching when the main device fails.
The specific technical scheme is as follows.
In an embodiment, the present disclosure provides a routing management method applied to a primary device of a dual-machine backup system, where the method includes: establishing VRRP connection with the standby equipment, and generating a VRRP virtual IP address according to the election result as the main equipment; sending hello message with source IP address as VRRP virtual IP address, and establishing OSPF neighbor associated with VRRP virtual IP address with opposite terminal equipment according to response associated with hello message; and learning the routing information associated with the VRRP virtual IP address according to an OSPF routing protocol, and distributing the routing information to the associated equipment.
Specifically, as shown in fig. 1, the method comprises the following steps:
step S11, establishing VRRP connection with the standby equipment, and generating a VRRP virtual IP address according to the election result as the main equipment;
step S12, sending hello message with source IP address as VRRP virtual IP address, according to the response of hello message, establishing OSPF neighbor associated with VRRP virtual IP address with opposite terminal equipment;
step S13, learning the routing information associated with the VRRP virtual IP address according to the OSPF routing protocol, and distributing the routing information to the associated device.
The main device establishes OSPF neighbors with the associated devices through hello messages with source IP addresses being VRRP virtual IP addresses, and enables a network system to calculate routing information by using the VRRP virtual IP addresses, so that when the main device fails and the standby device continues to use the VRRP virtual IP addresses to process services, the upstream device and the downstream device do not need to recalculate routing paths, and service interruption caused by routing recalculation is avoided.
In an embodiment, the creating, by the hello packet with the source IP address being the VRRP virtual IP address, an OSPF neighbor associated with the VRRP virtual IP address with the peer device according to an answer associated with the hello packet includes: and adding a VRRP virtual IP address to the management unit, and distributing the related MAC address and the related VRRP main interface for the VRRP virtual IP address.
In an embodiment, the creating, by the hello packet with the source IP address being the VRRP virtual IP address, an OSPF neighbor associated with the VRRP virtual IP address with the peer device according to an answer associated with the hello packet includes: and exchanging DD message and LSR message related to VRRP virtual IP address with opposite terminal equipment for establishing OSPF neighbor.
In one embodiment, data is synchronized with the standby device of the dual-machine backup system, so that the standby device processes services by using the VRRP virtual IP address when the main device fails.
The main device DeviceA and the standby device DeivceB establish VRRP, the master DeviceA is selected as master DeviceB and is selected as backup, a virtual IP address 2.1.1.4 is provided as a gateway from network public to an internal network, meanwhile, the virtualized DeviceA and D eivceB establish OSPF neighbors with downlink devices, the private network segment route is issued to a public network through OSPF route, and the public network route is issued to the private network. When deviceA fails, the service can be quickly switched to deviceB, and the next hop of the switched route is still 2.1.1.4 without recalculating the route path.
The master device master adds the VRRP virtual IP to an address management module of the device and allocates a mac address, and the associated interface is a VRRP main interface and is marked as a VRRP virtual IP address. And judging whether the OSPF area is associated with the VRRP backup group or not through configuration. And judging whether the current VRRP backup group is in a master state, if so, not sending an OSPF hello message, and if so, carrying out the next processing. When the OSPF area is associated with the VRRP backup group and the VRRP state is active, the equipment periodically sends hello message source IP address in a multicast form to be VRRP. And establishing a neighbor relation with opposite terminal equipment through the virtual IP address, and exchanging the DD message and the LSA to establish an adjacency relation after forming the neighbor relation. DD packet: describing abstract information of a local LSDBD, and being used for synchronizing databases of two devices; LSR message: the LSR message is used for sending LSA required by the request to the opposite side, and the equipment sends LSR message after the DD message is successfully exchanged. Establishing contact with the VRRP backup group through OSPF, and encapsulating the exchange message source IP address as a VRRP virtual IP address when confirming that OSPF domain needs to establish understanding through VRRP virtual IP. And respectively issuing the learned route issues to the upstream and downstream devices through an OSPF routing protocol.
In an embodiment, the present disclosure also provides a routing management apparatus, as shown in fig. 2, applied to a master device of a dual-machine backup system, where the apparatus includes: the address unit 21 is configured to establish a VRRP connection with the standby device, and generate a VRRP virtual IP address according to an election result of the master device; a message unit 22, configured to send a hello message with a source IP address being a VRRP virtual IP address, and establish an OSPF neighbor associated with the VRRP virtual IP address with an opposite end device according to a response associated with the hello message; and the routing unit 23 is configured to learn, according to the OSPF routing protocol, routing information associated with the VRRP virtual IP address, and distribute the routing information to the associated device.
In an embodiment, the creating, by the hello packet with the source IP address being the VRRP virtual IP address, an OSPF neighbor associated with the VRRP virtual IP address with the peer device according to an answer associated with the hello packet includes: and adding a VRRP virtual IP address to the management unit, and distributing the related MAC address and the related VRRP main interface for the VRRP virtual IP address.
In an embodiment, the creating, by the hello packet with the source IP address being the VRRP virtual IP address, an OSPF neighbor associated with the VRRP virtual IP address with the peer device according to an answer associated with the hello packet includes: and exchanging DD message and LSR message related to VRRP virtual IP address with opposite terminal equipment for establishing OSPF neighbor.
In one embodiment, data is synchronized with the standby device of the dual-machine backup system, so that the standby device processes services by using the VRRP virtual IP address when the main device fails.
The device embodiments are the same or similar to the corresponding method embodiments and are not described herein again.
In one embodiment, the present disclosure provides an electronic device, which includes a processor and a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions executable by the processor, and the processor executes the machine-executable instructions to implement the foregoing routing management method, and from a hardware level, a schematic diagram of a hardware architecture may be shown in fig. 3.
In one embodiment, the present disclosure provides a machine-readable storage medium having stored thereon machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement the aforementioned route management method.
Here, a machine-readable storage medium may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and so forth. For example, the machine-readable storage medium may be: a RAM (random Access Memory), a volatile Memory, a non-volatile Memory, a flash Memory, a storage drive (e.g., a hard drive), a solid state drive, any type of storage disk (e.g., an optical disk, a dvd, etc.), or similar storage medium, or a combination thereof.
The systems, devices, modules or units described in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. A typical implementation device is a computer, which may take the form of a personal computer, laptop computer, cellular telephone, camera phone, smart phone, personal digital assistant, media player, navigation device, email messaging device, game console, tablet computer, wearable device, or a combination of any of these devices.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the various elements may be implemented in the same one or more software and/or hardware implementations in practicing the disclosure.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Furthermore, these computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (which may include, but is not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above description is only an embodiment of the present disclosure, and is not intended to limit the present disclosure. Various modifications and variations of this disclosure will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the scope of the claims of the present disclosure.
Claims (10)
1. A route management method is applied to a main device of a dual-machine backup system, and comprises the following steps:
establishing VRRP connection with the standby equipment, and generating a VRRP virtual IP address according to the election result as the main equipment;
sending hello message with source IP address as VRRP virtual IP address, and establishing OSPF neighbor associated with VRRP virtual IP address with opposite terminal equipment according to response associated with hello message;
and learning the routing information associated with the VRRP virtual IP address according to an OSPF routing protocol, and distributing the routing information to the associated equipment.
2. The method of claim 1, wherein the sending source IP address is a hello packet of the VRRP virtual IP address, and an OSPF neighbor associated with the VRRP virtual IP address is established with the peer device according to an acknowledgement associated with the hello packet, including:
and adding a VRRP virtual IP address to the management unit, and distributing the related MAC address and the related VRRP main interface for the VRRP virtual IP address.
3. The method of claim 1, wherein the sending source IP address is a hello packet of the VRRP virtual IP address, and an OSPF neighbor associated with the VRRP virtual IP address is established with the peer device according to an acknowledgement associated with the hello packet, including:
and exchanging DD message and LSR message related to VRRP virtual IP address with opposite terminal equipment for establishing OSPF neighbor.
4. The method of claim 1, wherein data is synchronized with a standby device of a dual-machine backup system, so that the standby device processes traffic using the VRRP virtual IP address when a primary device fails.
5. A routing management apparatus, applied to a master device of a dual-machine backup system, the apparatus comprising:
the address unit is used for establishing VRRP connection with the standby equipment and generating a VRRP virtual IP address according to the election result of the main equipment;
the message unit is used for sending a hello message with a source IP address being a VRRP virtual IP address, and establishing an OSPF neighbor associated with the VRRP virtual IP address with opposite-end equipment according to a response associated with the hello message;
and the routing unit is used for learning the routing information associated with the VRRP virtual IP address according to the OSPF routing protocol and distributing the routing information to the associated equipment.
6. The apparatus of claim 5, wherein the hello packet with the source IP address being the VRRP virtual IP address establishes the OSPF neighbor associated with the VRRP virtual IP address with the peer device according to the response associated with the hello packet, comprising:
and adding a VRRP virtual IP address to the management unit, and distributing the related MAC address and the related VRRP main interface for the VRRP virtual IP address.
7. The apparatus of claim 5, wherein the hello packet with the source IP address being the VRRP virtual IP address establishes the OSPF neighbor associated with the VRRP virtual IP address with the peer device according to the response associated with the hello packet, comprising:
and exchanging DD message and LSR message related to VRRP virtual IP address with opposite terminal equipment for establishing OSPF neighbor.
8. The apparatus of claim 5, wherein data is synchronized with a standby device of the dual-machine backup system, so that the standby device processes traffic using the VRRP virtual IP address when the primary device fails.
9. An electronic device, comprising: a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor to perform the method of any one of claims 1 to 4.
10. A machine-readable storage medium having stored thereon machine-executable instructions which, when invoked and executed by a processor, cause the processor to implement the method of any of claims 1-4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115941582A (en) * | 2022-10-19 | 2023-04-07 | 北京航天晨信科技有限责任公司 | Route switching method and device of communication equipment, communication equipment and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494675A (en) * | 2018-02-07 | 2018-09-04 | 华为技术有限公司 | Realize the method, apparatus and routing device of Virtual Router Redundacy Protocol backup group |
| CN112511435A (en) * | 2020-12-17 | 2021-03-16 | 四川灵通电讯有限公司 | Method for realizing OSPF quick convergence in internal gateway protocol |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494675A (en) * | 2018-02-07 | 2018-09-04 | 华为技术有限公司 | Realize the method, apparatus and routing device of Virtual Router Redundacy Protocol backup group |
| CN112511435A (en) * | 2020-12-17 | 2021-03-16 | 四川灵通电讯有限公司 | Method for realizing OSPF quick convergence in internal gateway protocol |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115941582A (en) * | 2022-10-19 | 2023-04-07 | 北京航天晨信科技有限责任公司 | Route switching method and device of communication equipment, communication equipment and storage medium |
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Application publication date: 20211015 |