CN107948063B - Method for establishing aggregation link and access equipment - Google Patents
Method for establishing aggregation link and access equipment Download PDFInfo
- Publication number
- CN107948063B CN107948063B CN201711285611.5A CN201711285611A CN107948063B CN 107948063 B CN107948063 B CN 107948063B CN 201711285611 A CN201711285611 A CN 201711285611A CN 107948063 B CN107948063 B CN 107948063B
- Authority
- CN
- China
- Prior art keywords
- server
- aggregation
- system installation
- common port
- link
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H04L45/24—Multipath
- H04L45/245—Link aggregation, e.g. trunking
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Computer And Data Communications (AREA)
Abstract
The embodiment of the invention provides a method for establishing an aggregation link and access equipment, wherein the method comprises the following steps: judging that the server is in a system installation state; exiting the member port from the first aggregation group and converting the member port into a common port; configuring forwarding configuration information in the configuration information of the first aggregation group to the common port; forwarding a request message sent by the server to a remote server in the system installation process through the common port so that the server can complete system installation; after the server completes system installation, detecting that at least two ports connected with the access equipment on the server initiate aggregation link negotiation, and adding the at least two ports connected with the server and the at least two ports connected with the access equipment on the server into a second aggregation group so as to establish link aggregation between the access equipment and the server. And the reliability of server deployment is improved.
Description
Technical Field
The present invention relates to the field of data communications, and in particular, to a method for establishing an aggregated link and an access device.
Background
Link aggregation is a technique for improving high reliability data communication between network devices. Link aggregation techniques form a logical port (called an aggregation port or aggregation group) by bundling multiple physical ports, each physical link in an aggregated link being called an aggregated member link. The flow is transmitted and received by a plurality of member links in the aggregation link together, so that the link bandwidth is improved; and the reliability of the link is improved, and the whole link cannot be interrupted due to the failure of a single physical link.
In a network application scenario, in order to improve reliability, a server generally has multiple network cards, and the multiple network cards are bundled into an aggregation link, and are connected with an access device through the aggregation link to access a network, so that link bandwidth is improved, and mutual backup can be performed; there are many ways of Aggregation, and one of the more common ways is to use Link Aggregation Control Protocol (LACP). Each aggregation member link needs to negotiate through LACP protocol message interaction, and a successfully negotiated physical link (called a selected port and in a selected state) is allowed to participate in the flow forwarding of the aggregation link and is in a forwarding state; if the physical link which cannot be negotiated or fails to negotiate (called as the unselected port and is in the unselected state) cannot participate in the forwarding of the aggregated link, the aggregated link is in the blocked state. According to the LACP protocol, when a certain member link does not receive the LACP message within a period of time, negotiation fails, the member link is in the unselected state, and the port cannot participate in forwarding.
In a data center application scenario, a server is usually deployed at last, and is configured in an empty state or even has no operating system when accessing a network, and the server needs to be installed and configured in batches by a remote management server (hereinafter, referred to as an installation process) to work normally. However, at this time, the access device has already been deployed and configured with an LACP, and the network card of the server is not configured with an LACP, and does not send out an LACP protocol message.
As shown in fig. 1A, a server 1-N uses dual network cards to establish a link 1 and a link 2 respectively, and accesses an access device after aggregating the two links, is connected with a remote management server through an internet network connected with the access equipment, in addition, as shown in fig. 1B, two links formed by connecting the internet access 1 and the internet access 2 on the server with the port 1 and the port 2 of the access device respectively are bound into an aggregate link, the access device is connected with the remote management server through the port 3 and is connected with other network devices through other ports, when the server 1-N is in the installed state, the network ports 1 and 2 do not start the LACP protocol, do not send the LACP protocol message, the port 1 and the port 2 of the access device which are connected with the port 1 and the port 2 can not perform LACP negotiation and are in a blocking state, and messages can not be forwarded, so that the installation of the server 1-N can not be realized.
The common solution in the industry at present is that,
in the first scheme, when the access device does not receive the LACP message, the aggregation LINK is converted from the LACP aggregation mode to the static aggregation mode, and the static aggregation mode refers to that the member LINK can negotiate into the selected state only through LINK UP without receiving the LACP message, so that the problem that the server cannot be forwarded in the installation process is solved. When the server is installed (the network card is configured with the LACP), the aggregation member port of the access equipment receives the LACP protocol message, and then the aggregation mode is converted into the LACP aggregation.
And a second scheme is similar to the first scheme, only one member link is converted into static aggregation (the member link is called an aggregation preferred port) when the LACP aggregation is converted into the static aggregation mode, the selected state is forcibly changed, and other member links are kept unchanged.
However, the above schemes all have defects, in the process of installing the server, different servers may behave differently and are divided into a single-active state and a multi-active state, the single-active state means that only one network card (called a main network card) of the server is accessed to the network for installation, other network cards (called standby network cards) are in a standby state and are not accessed to the network, and the standby network card is started to access the network only when the main network card fails. The network cards of the servers are all connected to the network, and any network card can be connected with a remote management server to complete installation.
For the first scheme, it is not feasible when the server is single-live, because one characteristic of the aggregation link is that the messages are distributed in a balanced manner, that is, the messages on the aggregation link on the access device may be sent out on a certain physical link randomly, and when the server sends out the installation request message and the response message is sent out on the access device by selecting the physical link connected with the server standby network card, the message cannot be processed by the server, thereby causing the installation failure. Even if the servers are live, the same risk exists, some servers may also require a request message sent from a certain network card, a response message must be received from the network card, and if the response message is received by other network cards, the processing may fail. According to the balanced characteristic of the aggregation port, the access device cannot guarantee the consistency of the message receiving and sending of the network card.
For the second scheme, the second scheme is possible in the case that the server is multi-active, but there is a risk in the case that the server is single-active, the requirement on deployment personnel is relatively high, when the server is deployed, an active main network card must be connected to the access device aggregation preferred port, and if the access device aggregation preferred port is wrongly connected to a member port in an unselected state, the configuration management server cannot be connected. And general deployment personnel do not necessarily know which network card of the server is the main network card (the network card is not marked), so that the difficulty of correct deployment is increased.
Disclosure of Invention
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
a method for establishing an aggregation link is applied to an access device which establishes physical connection with a server, at least two ports of the access device which are connected with the server are member ports of a first aggregation group, and the method comprises the following steps:
judging that the server is in a system installation state;
exiting the member port from the first aggregation group and converting the member port into a common port;
configuring forwarding configuration information in the configuration information of the first aggregation group to the common port;
forwarding a request message sent by the server to a remote management server in the system installation process through the common port so that the server can complete system installation;
after the server completes system installation, detecting that at least two ports connected with the access equipment on the server initiate aggregation link negotiation, and adding the at least two ports connected with the server and the at least two ports connected with the access equipment on the server into a second aggregation group so as to establish link aggregation between the access equipment and the server.
Optionally, the step of determining that the server is in the system installation state specifically includes:
and when the aggregation link negotiation with the server fails, judging that the server is in a system installation state.
Optionally, when the aggregation link negotiation with the server fails,
the step of judging that the server is in a system installation state specifically comprises the following steps:
and when the aggregation link negotiation with the server fails, setting a period T, and when the aggregation link negotiation message of the server is not received or a system installation request message sent by the server is received in the period T, judging that the server is in a system installation state.
Optionally, the forwarding configuration information at least includes virtual local area network configuration information.
Optionally, the step of forwarding, through the common port, the request packet sent by the server to the remote management server in the system installation process further includes:
when a first common port and a second common port in the common ports are both in a working state, an access control list is set so as to prevent a message sent by a server and received from the first common port from being sent to the server through the second common port.
An embodiment of the present invention further provides an access device for establishing an aggregation link, where the access device is physically connected to a server, and at least two ports of the access device, which are connected to the server, are member ports of a first aggregation group, and the access device includes:
the judging module is used for judging that the server is in a system installation state;
a switching module, configured to exit the member port from the first aggregation group and convert the member port into a common port;
a configuration module, configured to configure forwarding configuration information in the configuration information of the first aggregation group to the common port;
the sending module is used for forwarding a request message sent by the server to a remote management server in the system installation process through the common port so that the server can complete system installation;
the detection module is used for detecting that at least two ports connected with the access equipment on the server initiate aggregation link negotiation after the server completes system installation;
and the aggregation establishing module is used for adding at least two ports connected with the server and at least two ports connected with the access equipment on the server into a second aggregation group so as to establish link aggregation between the access equipment and the server.
Optionally, the determining module is specifically configured to:
and when the aggregation link negotiation with the server fails, judging that the server is in a system installation state.
Alternatively to this, the first and second parts may,
the judgment module is specifically configured to:
and when the aggregation link negotiation with the server fails, setting a period T, and when the aggregation link negotiation message of the server is not received or a system installation request message sent by the server is received in the period T, judging that the server is in a system installation state.
Optionally, the forwarding configuration information at least includes virtual local area network configuration information.
Optionally, the sending module is further configured to:
when a first common port and a second common port in the common ports are both in a working state, an access control list is set so as to prevent a message sent by a server and received from the first common port from being sent to the server through the second common port.
The embodiment of the invention has the beneficial effects that: the method has the advantages that the method is flexible, the port is separated from the limitation of the aggregation group after exiting the aggregation group, a flexible forwarding mode is provided, various servers can finish automatic installation under any connection condition by issuing appropriate configuration, the reliability of server deployment is greatly improved, the deployment difficulty is reduced, and the development cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1A is a diagram of a server access deployment in the prior art;
fig. 1B is a schematic connection diagram of a server network card for implementing aggregation access in the prior art;
FIG. 2 is a flow chart of a method according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method according to an embodiment of the present invention;
FIG. 4 is a flow chart of a method according to an embodiment of the present invention;
FIG. 5 is a flow chart of a method according to an embodiment of the present invention;
fig. 6 is a diagram illustrating an apparatus 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
An embodiment of the present invention provides a method for establishing an aggregation link, which is applied to an access device that establishes a physical connection with a server, where at least two ports of the access device connected with the server are member ports of a first aggregation group, as shown in fig. 2, and includes the following steps:
s101, judging that the server is in a system installation state;
s103, the member port exits the first aggregation group and is converted into a common port;
s105, configuring the forwarding configuration information in the configuration information of the first aggregation group to the common port;
s107, forwarding a request message sent by the server to a remote management server in the system installation process through the common port so that the server can complete the system installation;
s109, after the server completes system installation, detecting that at least two ports connected with the access device on the server initiate aggregation link negotiation, and adding the at least two ports connected with the server and the at least two ports connected with the access device on the server into a second aggregation group, so as to establish link aggregation between the access device and the server.
Optionally, as shown in fig. 3, the step S101 specifically includes:
s1011, when the aggregation link negotiation with the server fails, determining that the server is in a system installation state.
Optionally, as shown in fig. 4, the step S1011 specifically includes:
and when the aggregation link negotiation with the server fails, setting a period T, and when the aggregation link negotiation message of the server is not received or a system installation request message sent by the server is received in the period T, judging that the server is in a system installation state.
Optionally, the forwarding configuration information at least includes virtual local area network configuration information.
Optionally, as shown in fig. 5, before the step S107, the method further includes:
s1071, when both the first common port and the second common port of the common ports are in a working state, setting an access control list so as to prevent a message sent from the server and received from the first common port from being sent to the server through the second common port.
The embodiment of the invention has the beneficial effects that: the method has the advantages that the method is flexible, the port is separated from the limitation of the aggregation group after exiting the aggregation group, a flexible forwarding mode is provided, various servers can finish automatic installation under any connection condition by issuing appropriate configuration, the reliability of server deployment is greatly improved, the deployment difficulty is reduced, and the development cost is saved.
An embodiment of the present invention further provides an access device for establishing an aggregation link, where the access device is physically connected to a server, and at least two ports of the access device, which are connected to the server, are member ports of a first aggregation group, as shown in fig. 6, where the access device includes:
a judging module 201, configured to judge that the server is in a system installation state;
a switching module 203, configured to exit the member port from the first aggregation group and convert the member port into a common port;
a configuration module 205, configured to configure forwarding configuration information in the configuration information of the first aggregation group to the common port;
a sending module 207, configured to forward, through the common port, a request packet sent by the server to a remote management server in a system installation process, so that the server completes system installation;
a detecting module 209, configured to detect that at least two ports on the server connected to the access device initiate an aggregated link negotiation after the server completes system installation;
an aggregation establishing module 211, configured to add at least two ports connected to the server and at least two ports connected to the access device on the server into a second aggregation group, so as to establish link aggregation between the access device and the server.
Optionally, the determining module 201 is specifically configured to:
and when the aggregation link negotiation with the server fails, judging that the server is in a system installation state.
Alternatively to this, the first and second parts may,
the determining module 201 is specifically configured to:
and when the aggregation link negotiation with the server fails, setting a period T, and when the aggregation link negotiation message of the server is not received or a system installation request message sent by the server is received in the period T, judging that the server is in a system installation state.
Optionally, the forwarding configuration information at least includes virtual local area network configuration information.
Optionally, the sending module 207 is further configured to:
when a first common port and a second common port in the common ports are both in a working state, an access control list is set so as to prevent a message sent by a server and received from the first common port from being sent to the server through the second common port.
The embodiment of the invention has the beneficial effects that: the method has the advantages that the method is flexible, the port is separated from the limitation of the aggregation group after exiting the aggregation group, a flexible forwarding mode is provided, various servers can finish automatic installation under any connection condition by issuing appropriate configuration, the reliability of server deployment is greatly improved, the deployment difficulty is reduced, and the development cost is saved.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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.
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.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for establishing an aggregation link is applied to an access device for establishing a physical connection with a server, wherein at least two ports of the access device connected with the server are member ports of a first aggregation group, and the method comprises the following steps:
judging that the server is in a system installation state;
exiting the member port from the first aggregation group and converting the member port into a common port;
configuring forwarding configuration information in the configuration information of the first aggregation group to the common port;
forwarding a request message sent by the server to a remote management server in the system installation process through the common port so that the server can complete system installation;
after the server completes system installation, detecting that at least two ports connected with the access equipment on the server initiate aggregation link negotiation, and adding the at least two ports connected with the server and the at least two ports connected with the access equipment on the server into a second aggregation group so as to establish link aggregation between the access equipment and the server.
2. The method according to claim 1, wherein the step of determining that the server is in a system installation state specifically comprises:
and when the aggregation link negotiation with the server fails, judging that the server is in a system installation state.
3. The method of claim 2, wherein when an aggregated link negotiation with the server fails,
the step of judging that the server is in a system installation state specifically comprises the following steps:
and when the aggregation link negotiation with the server fails, setting a period T, and when the aggregation link negotiation message of the server is not received or a system installation request message sent by the server is received in the period T, judging that the server is in a system installation state.
4. The method of claim 1, wherein the forwarding configuration information comprises at least virtual local area network configuration information.
5. The method of claim 1, wherein the step of forwarding the request message sent by the server to the remote management server during the system installation process through the common port further comprises:
when a first common port and a second common port in the common ports are both in a working state, an access control list is set so as to prevent a message sent by a server and received from the first common port from being sent to the server through the second common port.
6. An access device for establishing an aggregated link, wherein the access device is physically connected to a server, and at least two ports of the access device connected to the server are member ports of a first aggregation group, the access device comprising:
the judging module is used for judging that the server is in a system installation state;
a switching module, configured to exit the member port from the first aggregation group and convert the member port into a common port;
a configuration module, configured to configure forwarding configuration information in the configuration information of the first aggregation group to the common port;
the sending module is used for forwarding a request message sent by the server to a remote management server in the system installation process through the common port so that the server can complete system installation;
the detection module is used for detecting that at least two ports connected with the access equipment on the server initiate aggregation link negotiation after the server completes system installation;
and the aggregation establishing module is used for adding at least two ports connected with the server and at least two ports connected with the access equipment on the server into a second aggregation group so as to establish link aggregation between the access equipment and the server.
7. The access device of claim 6, wherein the determining module is specifically configured to:
and when the aggregation link negotiation with the server fails, judging that the server is in a system installation state.
8. The access device of claim 7,
the judgment module is specifically configured to:
and when the aggregation link negotiation with the server fails, setting a period T, and when the aggregation link negotiation message of the server is not received or a system installation request message sent by the server is received in the period T, judging that the server is in a system installation state.
9. The access device of claim 6, wherein the forwarding configuration information comprises at least virtual local area network configuration information.
10. The access device of claim 6, wherein the sending module is further to:
when a first common port and a second common port in the common ports are both in a working state, an access control list is set so as to prevent a message sent by a server and received from the first common port from being sent to the server through the second common port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285611.5A CN107948063B (en) | 2017-12-07 | 2017-12-07 | Method for establishing aggregation link and access equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285611.5A CN107948063B (en) | 2017-12-07 | 2017-12-07 | Method for establishing aggregation link and access equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107948063A CN107948063A (en) | 2018-04-20 |
| CN107948063B true CN107948063B (en) | 2021-01-15 |
Family
ID=61946084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711285611.5A Active CN107948063B (en) | 2017-12-07 | 2017-12-07 | Method for establishing aggregation link and access equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107948063B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602022A (en) * | 2018-06-12 | 2019-12-20 | 中兴通讯股份有限公司 | Access authentication method of port, terminal and storage medium |
| CN109450788B (en) * | 2018-10-31 | 2021-08-06 | 新华三云计算技术有限公司 | Virtual server initialization method and device and electronic equipment |
| CN112087378B (en) * | 2020-08-18 | 2022-03-22 | 浪潮思科网络科技有限公司 | Method, device and medium for realizing LACP forceup function |
| CN112988187B (en) * | 2021-02-23 | 2022-08-30 | 新华三大数据技术有限公司 | Equipment upgrading method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483593A (en) * | 2009-02-13 | 2009-07-15 | 中兴通讯股份有限公司 | Method and apparatus for distributing cache based on aggregated links in switch device |
| CN103401707A (en) * | 2013-07-26 | 2013-11-20 | 杭州华三通信技术有限公司 | Link aggregation method and access equipment |
| CN104079424A (en) * | 2013-03-29 | 2014-10-01 | 国际商业机器公司 | Device and method for asymmetrical link aggregation |
| CN105791257A (en) * | 2014-12-26 | 2016-07-20 | 上海斐讯数据通信技术有限公司 | Method for acquiring aggregation port authentication configuration through port |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8819235B2 (en) * | 2010-10-20 | 2014-08-26 | International Business Machines Corporation | Multi-adapter link aggregation for adapters with hardware based virtual bridges |
| US9413602B2 (en) * | 2013-06-12 | 2016-08-09 | Alcatel Lucent | System, method, and apparatus for network fabric configuration in data communication networks |
-
2017
- 2017-12-07 CN CN201711285611.5A patent/CN107948063B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483593A (en) * | 2009-02-13 | 2009-07-15 | 中兴通讯股份有限公司 | Method and apparatus for distributing cache based on aggregated links in switch device |
| CN104079424A (en) * | 2013-03-29 | 2014-10-01 | 国际商业机器公司 | Device and method for asymmetrical link aggregation |
| CN103401707A (en) * | 2013-07-26 | 2013-11-20 | 杭州华三通信技术有限公司 | Link aggregation method and access equipment |
| CN105791257A (en) * | 2014-12-26 | 2016-07-20 | 上海斐讯数据通信技术有限公司 | Method for acquiring aggregation port authentication configuration through port |
Non-Patent Citations (1)
| Title |
|---|
| 以太网链路聚合的研究与实现;郑涛;《中国优秀硕士学位论文全文数据库》;20110515;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107948063A (en) | 2018-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107948063B (en) | Method for establishing aggregation link and access equipment | |
| CN102882704B (en) | Link protection method in the soft reboot escalation process of a kind of ISSU and equipment | |
| CN106911648B (en) | Environment isolation method and equipment | |
| WO2016095344A1 (en) | Link switching method and device, and line card | |
| CN106533736A (en) | Network device reboot method and apparatus | |
| CN110768840A (en) | Control method, device, equipment and storage medium of communication equipment | |
| CN109560835B (en) | Power communication multi-channel monitoring method and device, computer equipment and storage medium | |
| WO2017000096A1 (en) | Link recovery method and network device | |
| CN111010319B (en) | VSF-based link detection method and device | |
| US11258666B2 (en) | Method, device, and system for implementing MUX machine | |
| CN106487598B (en) | The more examples of isomery redundancy Snmp agreements realize system and its implementation | |
| CN105933271B (en) | Data processing method and device based on encryption machine | |
| CN108667640B (en) | Communication method and device, and network access system | |
| CN104536853B (en) | A kind of device ensureing dual controller storage device resource continuous availability | |
| CN105763442A (en) | PON system and method avoiding interruption of LACP aggregation link in main-standby switching process | |
| CN102811153A (en) | VLAN state negotiating method and edge device | |
| CN107968718B (en) | Method, device and equipment for confirming main standby state | |
| CN115152192B (en) | PCE controlled network reliability | |
| CN104869118A (en) | Method and system for achieving DDoS defense based on technology of dynamic tunnels | |
| CN115665035A (en) | Information processing method and device, first node and storage medium | |
| CN117135029A (en) | Communication fault processing method, system and equipment | |
| CN106992878B (en) | Multicast detection method and device | |
| CN104580434B (en) | The method and system that a kind of firmware is downloaded | |
| US20220137604A1 (en) | Coordination Device and Method for Providing Control Applications via a Communication Network for Transmitting Time-Critical Data | |
| CN108616461B (en) | Policy switching method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |