CN103200110A - Data multicasting method and device applied to intelligent substation local area network - Google Patents
Data multicasting method and device applied to intelligent substation local area network Download PDFInfo
- Publication number
- CN103200110A CN103200110A CN2013101097601A CN201310109760A CN103200110A CN 103200110 A CN103200110 A CN 103200110A CN 2013101097601 A CN2013101097601 A CN 2013101097601A CN 201310109760 A CN201310109760 A CN 201310109760A CN 103200110 A CN103200110 A CN 103200110A
- Authority
- CN
- China
- Prior art keywords
- multicast
- identifier
- registered
- port
- unregistered
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 102
- 238000012806 monitoring device Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Landscapes
- Small-Scale Networks (AREA)
Abstract
The invention discloses a data multicasting method and device applied to an intelligent substation local area network. In a virtual local area network (VLAN) of an intelligent substation, the VLAN receives a monitoring port configuration request, wherein the monitoring port configuration request carries a multicasting port identification; a multicasting port represented by the multicasting port identification is enabled to be confirmed as a monitoring port, a corresponding relation between the identification of the monitoring port and identifications of all multicasting flows which are registered is constructed, and a corresponding relation between the identification of the monitoring port and identifications of multicasting flows which are not registered is constructed; after the multicasting flows are received by the VLAN, the multicasting flows are transmitted according to the two constructed corresponding relations, and accordingly the multicasting flows which are registered and the multicasting flows which are not registered are enabled to be transmitted to the monitoring port by the VLAN; and when a monitoring device is connected with the lower end of the monitoring port, the monitoring device can receive the multicasting flows which are registered and the multicasting flows which are not registered in the VLAN, and accordingly effective multicast statistics can be carried out.
Description
Technical Field
The invention relates to the technical field of transformer substations, in particular to a data multicast method and device applied to an intelligent transformer substation local area network.
Background
In a Local Area Network (LAN) formed by an intelligent substation or a digital substation, the LAN may be divided into a plurality of logical Virtual Local Area Networks (VLANs), and each VLAN includes a plurality of Network devices. Each VLAN forms a multicast domain, devices in the VLAN can communicate, and devices between the VLANs cannot directly communicate.
Fig. 1 shows a data multicast scenario in an existing intelligent substation local area network, in the scenario, devices P0, P1, P2, and P3 form a VLAN, P0 is an ingress port of multicast data, P1, P2, and P3 are egress ports of multicast data, a device connected below P1 registers known multicast traffic (that is, a device connected below P1 statically configures multicast traffic), and neither P2 nor P3 registers known multicast traffic. When the P0 receives the multicast traffic, searching a pre-configured multicast forwarding table according to the identifier of the multicast traffic, if an equipment identifier corresponding to the identifier of the multicast traffic is recorded in the multicast forwarding table, forwarding the multicast traffic to the searched equipment, for example, P1 registers the multicast traffic identified as X, when the P0 receives the multicast traffic, matching the identifier X in the multicast forwarding table, searching that P1 registers the multicast traffic, and forwarding the multicast traffic identified as X to P1. For unregistered unknown multicast traffic, P0 forwards the received unregistered multicast traffic in a flooding manner to each multicast data egress port in the VLAN, i.e., to P1, P2, and P3.
However, in the scenario shown in fig. 1, there are two problems, firstly, since P0 performs flooding processing on unregistered multicast traffic, that is, P0 copies the unregistered multicast traffic and sends the copied multicast traffic to each egress port, data traffic in a VLAN is increased, and network transmission pressure is increased; second, for an Intelligent Electronic Device (IED) such as a policing Device under P2 or P3, the policing Device expects to receive all traffic transmitted in the VLAN, including registered multicast traffic and unregistered multicast traffic, to perform network traffic statistics in the VLAN, but in the scenario shown in fig. 1, the network devices under P2 and P3 cannot receive registered multicast traffic.
In view of the above problems in the scenario shown in fig. 1, a solution is proposed as shown in fig. 2, in the scenario shown in fig. 2, P0 forwards the received registered multicast traffic according to the multicast forwarding table, and discards all the received unregistered multicast traffic, so that the network transmission pressure in the VLAN can be reduced. However, for the monitoring devices under the P2 or P3, the unregistered multicast traffic and the registered multicast traffic cannot be received, and thus the monitoring devices cannot perform statistical processing.
Therefore, in the existing intelligent substation local area network, the problem that the monitoring equipment cannot perform effective multicast statistics on multicast traffic exists.
Disclosure of Invention
In view of this, embodiments of the present invention provide a data multicast method and apparatus applied to an intelligent substation local area network, so as to solve a problem that a monitoring device in an existing intelligent substation local area network cannot perform effective multicast statistics on multicast traffic.
The technical scheme of the embodiment of the invention is as follows:
a data multicast method applied to an intelligent substation local area network comprises the following steps: in the intelligent substation local area network, a Virtual Local Area Network (VLAN) receives a monitoring port configuration request comprising an identifier of a multicast output port; determining the multicast output port represented by the identifier of the multicast output port as a monitoring port; establishing a corresponding relation between the identifier of the monitoring port and the identifier of each registered multicast flow in the established registered multicast forwarding table, and establishing a corresponding relation between the identifier of the monitoring port and the identifier of the unregistered multicast flow in the established unregistered multicast forwarding table; and the VLAN forwards the registered multicast traffic to the monitoring port corresponding to the identifier of the registered multicast traffic and forwards the unregistered multicast traffic to the monitoring port corresponding to the identifier of the unregistered multicast traffic according to the registered multicast forwarding table and the unregistered multicast forwarding table.
A data multicast device applied to an intelligent substation local area network comprises: a receiving module, configured to receive a monitor port configuration request including an identifier of a multicast output port in a virtual local area network VLAN; the establishing module is used for determining the multicast output port represented by the identifier of the multicast output port received by the receiving module as a monitoring port; establishing a corresponding relation between the identifier of the monitoring port and the identifier of each registered multicast flow in the established registered multicast forwarding table, and establishing a corresponding relation between the identifier of the monitoring port and the identifier of the unregistered multicast flow in the established unregistered multicast forwarding table; and the forwarding module is used for forwarding the registered multicast traffic to the monitoring port corresponding to the identifier of the registered multicast traffic and forwarding the unregistered multicast traffic to the monitoring port corresponding to the identifier of the unregistered multicast traffic according to the registered multicast forwarding table and the unregistered multicast forwarding table.
In the embodiment of the invention, in the VLAN of the intelligent substation, the VLAN receives a monitoring port configuration request which carries the identifier of a multicast output port requested to be configured, the multicast output port represented by the identifier of the multicast output port is determined as the monitoring port, the corresponding relation between the identifier of the monitoring port and each registered multicast flow identifier is established, and the corresponding relation between the identifier of the monitoring port and the unregistered multicast flow is established, so that the multicast flow is forwarded according to the established corresponding relations after the multicast flow is received by an input port of the multicast flow, the registered multicast flow and the unregistered multicast flow in the VLAN can be forwarded to the monitoring port, when the monitoring device is connected below the monitoring port, the monitoring device can receive the registered multicast flow and the unregistered multicast flow in the VLAN, thereby carrying out effective multicast statistics, and then can solve the problem that the supervisory equipment in the current intelligent substation LAN can't carry out effectual multicast statistics to the multicast flow.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a schematic diagram of a data multicast scenario in an existing intelligent substation local area network;
fig. 2 is another schematic diagram of a data multicast scenario in an existing intelligent substation lan;
fig. 3 is a flowchart of a data multicast method applied to an intelligent substation lan according to an embodiment of the present invention;
fig. 4 is a block diagram of a data multicasting apparatus applied to an intelligent substation lan according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.
The embodiment of the invention provides a data multicast method and device applied to an intelligent substation local area network, aiming at the problems that monitoring equipment in the existing intelligent substation local area network cannot perform effective multicast statistics on multicast flow, and devices which do not support multicast protocol equipment to receive unknown multicast flow and known multicast flow and relieve multicast transmission pressure. In the embodiment of the invention, in the VLAN of the intelligent substation, the VLAN receives a monitoring port configuration request which carries the identifier of a multicast output port, a monitoring management unit determines the multicast output port represented by the identifier of the multicast output port as a monitoring port, establishes the corresponding relation between the identifier of the monitoring port and each registered multicast flow identifier and establishes the corresponding relation between the identifier of the monitoring port and the unregistered multicast flow, so that after the VLAN receives the multicast flow, the VLAN forwards the multicast flow according to the established two corresponding relations, can forward the registered multicast flow and the unregistered multicast flow to the monitoring port, and when the monitoring port is connected with monitoring equipment, the monitoring equipment can receive the registered multicast flow and the unregistered multicast flow in the VLAN, thereby carrying out effective multicast statistics, and then can solve the problem that the monitoring equipment in the current intelligent substation local area network can not carry out effective multicast statistics on the multicast flow, and does not support the multicast protocol equipment to receive unknown multicast flow and known multicast flow and relieve the multicast transmission pressure.
Fig. 3 shows a workflow of a data multicasting method applied to an intelligent substation local area network according to an embodiment of the present invention, where the method includes:
specifically, in a specific application scenario, the monitor port configuration request may be implemented by adding a type identifier to an existing multicast on-demand request or multicast join request, that is, adding an identifier indicating that the multicast on-demand request or multicast join request is a monitor port configuration request to the multicast on-demand request or multicast join request;
specifically, a monitoring management unit may be configured, and the monitoring management unit receives a monitoring port configuration request from multiple maintenance levels, for example, the monitoring management unit receives a monitoring port configuration request from any multicast output port in the same VLAN, that is, the monitoring port configuration request may be from any multicast output port in the VLAN, and the multicast output port that sends the monitoring port configuration request carries an identifier of the multicast output port in the request; furthermore, the monitoring port configuration request sent by the multicast output port may also be a monitoring port configuration request sent by a network device connected downstream from the multicast output port, and the multicast output port forwards the monitoring port configuration request; or, the monitoring management unit can also receive a monitoring port configuration request input by a user on a human-computer interface;
specifically, the time for receiving the monitoring port configuration request by the monitoring management unit may be in the process of initializing the intelligent substation local area network or in the process of optimizing the intelligent substation local area network;
specifically, in a registered multicast forwarding table, a monitoring management unit writes an identifier of a monitoring port into a multicast output port identifier set corresponding to an identifier of each registered multicast flow, and in an unregistered multicast forwarding table, writes an identifier of the monitoring port into the unregistered multicast forwarding table;
in an actual application scenario, a registered multicast forwarding table and an unregistered forwarding table may be merged in the same table, that is, a multicast forwarding table, where a part of a registered multicast forwarding identifier and a multicast output port identifier set corresponding to the registered multicast forwarding identifier is recorded in the multicast forwarding table, and may be regarded as a registered multicast forwarding table, a default configuration table entry in the multicast forwarding table except for the registered multicast forwarding table entry may be regarded as an unregistered multicast forwarding table, and only an identifier of a multicast output port requesting configuration is recorded in the default configuration table entry;
specifically, after receiving the multicast traffic, the ingress port of the multicast traffic in the VLAN queries the registered multicast forwarding table and the unregistered multicast forwarding table, and forwards the multicast traffic according to the correspondence between the two tables, that is, forwards both the registered multicast traffic and the unregistered multicast traffic to the monitor port.
Through the processing process, the VLAN can forward the registered multicast flow and the unregistered multicast flow to the monitoring port according to the registered multicast forwarding table and the unregistered multicast forwarding table, and when the monitoring port is connected with monitoring equipment, the monitoring equipment can receive the registered multicast flow and the unregistered multicast flow in the VLAN, so that effective multicast statistics, flow monitoring or auditing can be carried out, and the problem that the monitoring equipment in the existing intelligent substation local area network cannot carry out effective multicast statistics on the multicast flow can be solved.
Further, when a multicast output port exits from a previously ordered registered multicast flow, a VLAN (also called a monitoring management unit) deletes an identifier of the multicast output port from an identifier set of the multicast output port corresponding to the identifier of the registered multicast flow in a registered multicast forwarding table, when all multicast output ports except the multicast output port configured as the monitoring port exit from the registered multicast flow, only an identifier of the monitoring port is left in the multicast output port identifier corresponding to the registered multicast flow identifier in the registered multicast forwarding table, and if the multicast input port still performs multicast flow forwarding according to the registered multicast forwarding table, a service logic error may be caused; in this case, the corresponding relationship between the identifier of the monitor port and the identifier of the registered multicast traffic should be deleted, that is, in the registered multicast forwarding table, when there is a corresponding relationship between the identifier of the registered multicast traffic and the identifier of the monitor port, the corresponding relationship between the identifier of the registered multicast traffic and the identifier of the monitor port is deleted.
Further, in the case that a VLAN (that is, a monitoring management unit) does not receive a monitoring port configuration request, a corresponding relationship between an identifier of each multicast egress port in the same VLAN and an identifier of unregistered multicast traffic is established in an unregistered multicast forwarding table, which is the same as the scenario shown in fig. 1. This situation is used as a supplementary solution to the above processing procedure, so as to avoid the problem that the actual monitor port cannot receive any multicast traffic because the VLAN cannot configure the registered multicast forwarding table and the unregistered multicast forwarding table because the VLAN does not receive the monitor port configuration request.
Based on the same inventive concept, an embodiment of the present invention further provides a data multicasting apparatus applied to an intelligent substation lan, where the apparatus has a structure as shown in fig. 4, and includes:
a receiving module 41, configured to receive a monitor port configuration request including an identifier of a multicast output port in a VLAN;
specifically, the receiving module 41 is specifically configured to: receiving a monitoring port configuration request from a multicast output port in the VLAN; or, receiving a monitoring port configuration request input by a user;
an establishing module 42, connected to the receiving module 41, configured to determine a multicast output port represented by the identifier of the multicast output port received by the receiving module 41 as a monitor port; establishing a corresponding relation between an identifier of a monitoring port and an identifier of each registered multicast flow in an established registered multicast forwarding table, and establishing a corresponding relation between the identifier of the monitoring port and the identifier of the unregistered multicast flow in an established unregistered multicast forwarding table, wherein the registered multicast forwarding table comprises a corresponding relation between the identifier of the registered multicast flow and an identifier of a multicast outlet port which requests the registered multicast flow, and the unregistered multicast forwarding table comprises a corresponding relation between the identifier of the unregistered multicast flow and an identifier of a multicast outlet port which receives the unregistered multicast flow;
specifically, the establishing module 42 writes the identifier of the monitor port into a multicast output port identifier set corresponding to the identifier of each registered multicast traffic in the registered multicast forwarding table; writing the identifier of the monitoring port into an unregistered multicast forwarding table;
the establishing module 42 is further configured to delete the corresponding relationship between the registered multicast traffic identifier and the identifier of the monitor port when, in the registered multicast forwarding table, there is a corresponding relationship between the registered multicast traffic identifier and the identifier of the monitor port only;
preferably, the establishing module 42 is further configured to establish, in the unregistered multicast forwarding table, a correspondence between an identifier of each multicast egress port in the VLAN and an identifier of unregistered multicast traffic, in a case that the receiving module 41 does not receive the monitor port configuration request.
A forwarding module 43, connected to the establishing module 42, configured to forward the registered multicast traffic to the monitor port corresponding to the identifier of the registered multicast traffic and forward the unregistered multicast traffic to the monitor port corresponding to the identifier of the unregistered multicast traffic according to the registered multicast forwarding table and the unregistered multicast forwarding table established by the establishing module 42.
According to the device, the registered multicast flow and the unregistered multicast flow can be forwarded to the monitoring port by the input port of the multicast flow in the VLAN according to the registered multicast forwarding table and the unregistered multicast forwarding table, and when the monitoring port is connected with monitoring equipment, the monitoring equipment can receive the registered multicast flow and the unregistered multicast flow in the VLAN, so that effective multicast statistics, flow monitoring or auditing can be carried out, and the problem that the monitoring equipment in the existing intelligent substation local area network cannot carry out effective multicast statistics on the multicast flow can be solved.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention 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, optical storage, and the like) having computer-usable program code embodied therein.
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.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A data multicast method applied to an intelligent substation local area network is characterized by comprising the following steps:
in an intelligent substation local area network, a virtual local area network VLAN receives a monitoring port configuration request comprising an identifier of a multicast output port in the VLAN;
determining the multicast output port represented by the identifier of the multicast output port as a monitoring port; and,
establishing a corresponding relation between the identifier of the monitoring port and the identifier of each registered multicast flow in the established registered multicast forwarding table, and establishing a corresponding relation between the identifier of the monitoring port and the identifier of the unregistered multicast flow in the established unregistered multicast forwarding table;
and the VLAN forwards the registered multicast traffic to the monitoring port corresponding to the identifier of the registered multicast traffic and forwards the unregistered multicast traffic to the monitoring port corresponding to the identifier of the unregistered multicast traffic according to the registered multicast forwarding table and the unregistered multicast forwarding table.
2. The method according to claim 1, wherein the VLAN receiving the monitor port configuration request specifically comprises:
the VLAN receives the monitor port configuration request from the multicast output port in the VLAN; or,
and the VLAN receives the monitoring port configuration request input by a user.
3. The method according to claim 1, wherein establishing, in a registered multicast forwarding table, a correspondence between the identifier of the monitor port and the identifier of each registered multicast traffic specifically includes:
in the registered multicast forwarding table, writing the identifier of the monitoring port into a multicast output port identifier set corresponding to the identifier of each registered multicast flow;
in the unregistered multicast forwarding table, establishing a correspondence between the identifier of the monitoring port and the unregistered multicast traffic identifier, which specifically includes:
and writing the identifier of the monitoring port into the unregistered multicast forwarding table.
4. The method of claim 1, further comprising:
and in the registered multicast forwarding table, when the identifier of one registered multicast flow only has a corresponding relation with the identifier of the monitoring port, the VLAN deletes the corresponding relation between the identifier of the registered multicast flow and the identifier of the monitoring port.
5. The method of claim 1, further comprising:
and under the condition that the VLAN does not receive the monitoring port configuration request, establishing a corresponding relation between the identifier of each multicast output port in the VLAN and the identifier of the unregistered multicast flow in an unregistered multicast forwarding table.
6. The utility model provides a data multicast device for intelligent substation LAN which characterized in that includes:
a receiving module, configured to receive a monitor port configuration request including an identifier of a multicast output port in a virtual local area network VLAN;
the establishing module is used for determining the multicast output port represented by the identifier of the multicast output port received by the receiving module as a monitoring port; establishing a corresponding relation between the identifier of the monitoring port and the identifier of each registered multicast flow in the established registered multicast forwarding table, and establishing a corresponding relation between the identifier of the monitoring port and the identifier of the unregistered multicast flow in the established unregistered multicast forwarding table;
and the forwarding module is used for forwarding the registered multicast traffic to the monitoring port corresponding to the identifier of the registered multicast traffic and forwarding the unregistered multicast traffic to the monitoring port corresponding to the identifier of the unregistered multicast traffic according to the registered multicast forwarding table and the unregistered multicast forwarding table.
7. The apparatus of claim 6, wherein the receiving module is specifically configured to:
receiving the monitor port configuration request from the multicast egress port in the VLAN; or,
and receiving the monitoring port configuration request input by a user.
8. The apparatus of claim 6, wherein the establishing module is specifically configured to:
in the registered multicast forwarding table, writing the identifier of the monitoring port into a multicast output port identifier set corresponding to the identifier of each registered multicast flow;
and writing the identifier of the monitoring port into the unregistered multicast forwarding table.
9. The apparatus of claim 6, wherein the establishing module is further configured to:
and deleting the corresponding relation between the registered multicast traffic identification and the identification of the monitoring port under the condition that the registered multicast traffic identification only has the corresponding relation with the identification of the monitoring port in the registered multicast forwarding table.
10. The apparatus of claim 6, wherein the establishing module is further configured to:
and under the condition that the receiving module does not receive the monitoring port configuration request, establishing a corresponding relation between the identifier of each multicast output port in the VLAN and the identifier of the unregistered multicast flow in an unregistered multicast forwarding table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109760.1A CN103200110B (en) | 2013-03-29 | 2013-03-29 | A kind of data multicast method and apparatus being applied to intelligent substation local area network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109760.1A CN103200110B (en) | 2013-03-29 | 2013-03-29 | A kind of data multicast method and apparatus being applied to intelligent substation local area network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103200110A true CN103200110A (en) | 2013-07-10 |
| CN103200110B CN103200110B (en) | 2016-03-30 |
Family
ID=48722473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310109760.1A Active CN103200110B (en) | 2013-03-29 | 2013-03-29 | A kind of data multicast method and apparatus being applied to intelligent substation local area network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103200110B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457749A (en) * | 2013-08-29 | 2013-12-18 | 国家电网公司 | Method for restraining multicast flooding in intelligent substation |
| CN104660509A (en) * | 2013-11-19 | 2015-05-27 | 中国科学院声学研究所 | Forward processing method of data message in access gateway |
| WO2015071914A3 (en) * | 2013-11-14 | 2016-09-09 | Hewlett-Packard Development Company, L.P. | Multicast data management |
| CN106789131A (en) * | 2016-12-27 | 2017-05-31 | 国电南瑞南京控制系统有限公司 | A kind of new energy power station control method based on VLAN multicasting technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2318413C (en) * | 1998-01-13 | 2003-12-30 | Cabletron Systems, Inc. | Virtual local area network with multicast protection |
| CN101068248A (en) * | 2007-06-07 | 2007-11-07 | 杭州华三通信技术有限公司 | Long-distance mirror image method, image source equipment and image destination equipment |
| CN101667966A (en) * | 2009-06-11 | 2010-03-10 | 中兴通讯股份有限公司 | Method and system for realizing far-end mirror image of router |
| CN101707561A (en) * | 2009-11-06 | 2010-05-12 | 中兴通讯股份有限公司 | Network security-based mirror method and system |
| CN102664456A (en) * | 2012-04-25 | 2012-09-12 | 广东电网公司珠海供电局 | Multicast management method and device for intelligent substation process level |
-
2013
- 2013-03-29 CN CN201310109760.1A patent/CN103200110B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2318413C (en) * | 1998-01-13 | 2003-12-30 | Cabletron Systems, Inc. | Virtual local area network with multicast protection |
| CN101068248A (en) * | 2007-06-07 | 2007-11-07 | 杭州华三通信技术有限公司 | Long-distance mirror image method, image source equipment and image destination equipment |
| CN101667966A (en) * | 2009-06-11 | 2010-03-10 | 中兴通讯股份有限公司 | Method and system for realizing far-end mirror image of router |
| CN101707561A (en) * | 2009-11-06 | 2010-05-12 | 中兴通讯股份有限公司 | Network security-based mirror method and system |
| CN102664456A (en) * | 2012-04-25 | 2012-09-12 | 广东电网公司珠海供电局 | Multicast management method and device for intelligent substation process level |
Non-Patent Citations (1)
| Title |
|---|
| 李馥娟: "《SMON技术在交换式网络管理中的应用研究》", 《计算机时代》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457749A (en) * | 2013-08-29 | 2013-12-18 | 国家电网公司 | Method for restraining multicast flooding in intelligent substation |
| WO2015071914A3 (en) * | 2013-11-14 | 2016-09-09 | Hewlett-Packard Development Company, L.P. | Multicast data management |
| CN104660509A (en) * | 2013-11-19 | 2015-05-27 | 中国科学院声学研究所 | Forward processing method of data message in access gateway |
| CN104660509B (en) * | 2013-11-19 | 2017-11-21 | 中国科学院声学研究所 | The method for processing forwarding of data message in a kind of access gateway |
| CN106789131A (en) * | 2016-12-27 | 2017-05-31 | 国电南瑞南京控制系统有限公司 | A kind of new energy power station control method based on VLAN multicasting technology |
| CN106789131B (en) * | 2016-12-27 | 2019-10-22 | 国电南瑞南京控制系统有限公司 | A kind of new energy power station control method based on virtual LAN multicasting technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103200110B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5715185B2 (en) | Packet processing method, apparatus and system | |
| CN103200110B (en) | A kind of data multicast method and apparatus being applied to intelligent substation local area network | |
| CN104317638A (en) | Application stretching management method and device | |
| WO2018137384A1 (en) | Method, device, and system for adjusting a forwarding path | |
| CN104969222A (en) | Method and system for using a recursive event listener on a node in hierarchical data structure | |
| WO2021098425A1 (en) | Qos policy method, device, and computing device for service configuration | |
| CN104065571B (en) | A kind of broadcasting packet processing method, apparatus and system | |
| CN111970195B (en) | Data transmission method and streaming data transmission system | |
| CN104852869B (en) | A kind of port convergence method and device | |
| CN110474842A (en) | A kind of communication means, customer terminal equipment and transmission network | |
| WO2020078381A1 (en) | Data aggregation method, device, equipment, storage medium and system | |
| CN108924203B (en) | Data copy self-adaptive distribution method, distributed computing system and related equipment | |
| CN112152996A (en) | Data transmission method, device, equipment and storage medium based on gateway cascade | |
| US11700189B2 (en) | Method for performing task processing on common service entity, common service entity, apparatus and medium for task processing | |
| CN106790411B (en) | The non-polymeric port cascade system and method for virtual switch and physical switches | |
| CN104283801A (en) | Method and system for processing service data | |
| CN101959087B (en) | Multicast processing method and device | |
| CN109743250B (en) | Transmission method of multicast message, first network equipment and second network equipment | |
| EP3691210B1 (en) | Flexible ethernet message forwarding method and apparatus | |
| CN103490964A (en) | Method and device for flexibly configuring number of access terminals | |
| CN111131479A (en) | Flow processing method and device and flow divider | |
| TW201743587A (en) | Management and control system to manage and control virtual overlay network by controller for generating tenant virtual network, and management and control method thereof comprising a multi-tenant virtual network structure and management-control subsystem, a virtual overlay network structure subsystem, and a multi-tenant virtual network controller subsystem for complete isolation among tenants | |
| CN105516276A (en) | Message processing method and system based on bionic hierarchical communication | |
| CN105677454B (en) | The integration method of computing resource, device and system | |
| CN110309225B (en) | Data processing method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |