CN101119208A - Switchboard, service processing board and switching board - Google Patents
Switchboard, service processing board and switching board Download PDFInfo
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- CN101119208A CN101119208A CNA2007101208632A CN200710120863A CN101119208A CN 101119208 A CN101119208 A CN 101119208A CN A2007101208632 A CNA2007101208632 A CN A2007101208632A CN 200710120863 A CN200710120863 A CN 200710120863A CN 101119208 A CN101119208 A CN 101119208A
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Abstract
The present invention relates to an exchanger, an service processing single board and an exchanging single board. Wherein, the exchanger comprises at least a main controlling board and at least an service processing single board; wherein, the main controlling board comprises a main exchanging unit, a main processing unit s and a main service processing unit which are all mutually connected; the service processing single board comprises a mutual connected exchanging unit and a processing unit with the exchanging unit and the main exchanging unit mutually connected and the processing unit and the main processing unit mutually connected. The service processing single board also comprises an assistant service processing unit which is respectively connected with the exchanging unit and the processing unit for processing the service flow which is transferred to the exchanging unit by the main exchanging unit. The present invention shares the processing of partial services by importing the assistant service processing unit, thus sharing partial burthen of the main service processing unit and further elevating the whole service processing ability of the exchanger.
Description
Technical Field
The invention relates to a switch, a service processing single board and a switch single board, belonging to the field of data communication.
Background
With the rapid development of network scale and the continuous expansion of application field, network operators face huge pressure on the upgrade and maintenance of network devices. To meet the increasing demands of network services, network devices need to be upgraded continuously.
Device upgrades typically include two aspects, software upgrades and hardware upgrades. The software is simple, convenient and flexible to upgrade and low in cost. However, the actual performance of the network device, and whether it can meet the emerging traffic demands, often depends on the hardware capabilities being upgraded. If the hardware upgrading capability of the network equipment used in the early-stage construction of the network is limited and cannot meet the requirements of new services, the network equipment needs to be integrally replaced, and the network construction and operation cost is seriously increased. Therefore, the scalability of hardware is one of the important indicators of network devices.
In view of the reduction of operation cost and the improvement of device maintainability, the conventional network device with single service function is gradually replaced by the network device integrating multiple service functions. However, the centralization of multiple services places high demands on the processing capacity of the network device. Generally, a network device only has one service processing unit, as shown in fig. 1, the service processing unit is located on a main control board, a plurality of services run on the same service processing unit at the same time, and the load of the service processing unit is heavy. With the appearance of new services or the improvement of the performance requirements of the original services, the processing capability of the original service processing unit is difficult to meet the actual requirements.
The above problems are usually solved by replacing the service processing unit with a more powerful and powerful service processing unit, but this results in a waste of investment in the original hardware, and once a new service appears again or the performance requirement of the existing service increases again, the hardware of the service processing unit may need to be replaced again. The other way is to increase the number of the service processing units, and the plurality of service processing units respectively bear different services, so as to achieve the purpose of improving the overall processing performance of the equipment. However, since the number of data channels that can be provided to the main service processing unit by the main switching unit is limited, the number of the main service processing units on the main control board is difficult to increase, and the number of the service processing units is limited by the area of the printed circuit board of the main control board.
Disclosure of Invention
The invention aims to provide a switch, a service processing single board and a switching single board aiming at the defects of heavy load of a main service processing unit and difficult expansion of a switch system caused by centralization of a plurality of services in the prior art.
In order to achieve the above object, the present invention provides an exchange, which includes at least one main control board and at least one service processing board, where the main control board includes a main switching unit, a main management unit and a main service processing unit that are interconnected with each other, and the service processing board includes a switching unit and a management unit that are interconnected with each other; the switching unit and the main switching unit are interconnected, and the management unit and the main management unit are interconnected, wherein the service processing board further includes an auxiliary service processing unit, which is connected to the switching unit and the management unit, respectively, and is configured to process a service flow forwarded to the switching unit by the main switching unit.
In the above technical solution, since the service processing board including the auxiliary service processing unit is arranged in the switch, processing of part of services is shared, thereby reducing load of the main service processing unit on the main control board; and with the improvement of the original service performance, under the condition that the processing capacity of the main service processing unit is limited, the partial load of the main service processing unit is shared, so that the overall service processing capacity of the switch is improved.
In order to achieve the above object, the present invention further provides a service processing board, which includes a switching unit and a management unit that are interconnected with each other, and further includes an auxiliary service processing unit that is connected to the switching unit and the management unit, respectively.
In the above technical solution, since the service processing board includes the auxiliary service processing unit, compared with the existing switching board, the service processing board has the service processing capability, so that in the switch formed after being connected with the main control board, part of the service processing can be shared, thereby reducing the load of the main service processing unit on the main control board; and with the improvement of the original service performance, under the condition that the processing capacity of the main service processing unit is limited, the partial load of the main service processing unit can be shared, so that the overall service processing capacity of the switch is improved.
In order to achieve the above object, the present invention further provides an exchange board, which includes an exchange unit and a management unit interconnected with each other, and further includes a reserved interface, connected to the exchange unit and the management unit, respectively, for hooking the auxiliary service processing unit.
In the above technical solution, as the reserved interface is added in the switch board, with the increase of the number of services of the switch or the improvement of the service performance requirement, under the condition that the service processing capability of the switch is limited, the auxiliary service processing unit can be hooked on the reserved interface, so as to improve the service processing capability of the whole switch and enhance the expansion capability of the service processing of the switch.
Drawings
Fig. 1 is a schematic structural diagram of a conventional switch;
FIG. 2 is a schematic structural diagram of a first embodiment of a switch according to the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of the switch according to the present invention;
fig. 4 is a schematic structural diagram of a third embodiment of the switch of the present invention;
fig. 5 is a schematic structural diagram of an embodiment of a service processing board according to the present invention;
fig. 6 is a schematic structural diagram of an embodiment of a switch board according to the present invention.
Detailed Description
The invention provides a switch, which comprises at least one main control board and at least one service processing single board, and aims to overcome the defects of heavy load of a main service processing unit and difficulty in expansion of a switch system caused by centralization of a plurality of services in the prior art. Wherein,
the main control board is responsible for managing each service processing board/switch board (service processing board and/or switch board), performing message exchange between each service processing board/switch board, and processing multiple service flows sent by the service processing board/switch board. The main control board comprises a main exchange unit, a main management unit and a main service processing unit which are mutually interconnected. The main exchange unit exchanges the message sent by each service processing single board/exchange single board, and sends the service stream to be processed to the main service processing unit. The main management unit carries out working parameter configuration and working state monitoring on the main exchange unit and the main service processing unit of the main control board, and simultaneously configures and monitors each service processing single board/exchange single board through the management channel between the boards. The main service processing unit is responsible for processing various service messages and can send the processed service messages back to the main switching unit according to the service requirements.
The service processing single board/the switching single board performs message switching between the physical ports of the local board and is interconnected with the main control board through an exclusive inter-board data channel and an exclusive inter-board management channel. The service processing single board/switching single board comprises a switching unit, a management unit and at least two physical ports. The switching unit is used for switching messages between physical ports of the board, or forwarding the messages to the main control board through an exclusive inter-board data channel, wherein the messages include general data messages which need to be forwarded to other service processing single boards/switching single boards and service messages which need to be processed by the main service processing unit. The management unit receives the configuration information from the main management unit of the main control board, performs working parameter configuration on the exchange unit, and returns the working state of the exchange unit to the main control board through the inter-board management channel.
In addition, the service processing board further includes an auxiliary service processing unit, which is connected to the switching unit and the management unit, respectively, and is configured to process the service flow forwarded to the switching unit by the main switching unit. If the auxiliary service processing unit is connected with the switching unit through the on-board data channel, and is connected with the management unit through the on-board management channel. The service data stream is sent to the auxiliary service processing unit through the data channel. The management unit of the service processing single board receives the configuration information from the main control board, performs working parameter configuration on the auxiliary service processing unit, and monitors the working state of the auxiliary service processing unit.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Fig. 2 is a schematic structural diagram of a first embodiment of the switch of the present invention. In this embodiment, the switch includes: a main control board 100 and a service processing board 200. The main control board includes a main switching unit 101, a main management unit 102, and a main service processing unit 103, which are interconnected with each other. The service processing board 200 includes a switching unit 201 and a management unit 202 interconnected with each other.
The switching unit 201 is connected to the main switching unit 101, e.g. via an exclusive inter-board data channel. The management units 202 are respectively connected to the master management unit 102, such as through exclusive inter-board management channels.
The service processing board 200 further comprises two physical interfaces 203 connected to the switching unit 201.
The service processing board 200 further includes an auxiliary service processing unit 204, which is connected to the switching unit 201 and the management unit 202, respectively, and is configured to process the service flow forwarded to the switching unit 201 by the main switching unit 101.
In this embodiment, since the service processing board including the auxiliary service processing unit is set in the switch, processing of part of services is shared, thereby reducing load of the main service processing unit on the main control board; and with the improvement of the original service performance, under the condition that the processing capacity of the main service processing unit is limited, the partial load of the main service processing unit is shared, so that the overall service processing capacity of the switch is improved.
Fig. 3 is a schematic structural diagram of a second embodiment of the switch according to the present invention. The difference between this embodiment and the previous embodiment is that the switch further includes a switch board 300, and the switch board 300 includes a switch unit 301 and a management unit 303 interconnected with each other. Switch board 300 also includes two physical interfaces 303 connected to switch unit 301.
When a plurality of service processing units exist in the switch at the same time, because the service types that can be processed by each service processing unit are different, different service flows need to be distributed, and each service flow is sent to a designated service processing unit for processing. The distribution and processing flow of the traffic flow on the switch according to the present invention will be described with reference to fig. 3 in the following embodiment two.
1. The service flow enters the switching unit 301 from the physical port 303 of the switching board 300;
2. the switching unit 301 classifies the service flows according to the control information issued by the main management unit 102 of the main control board. The different types of traffic streams are labeled with different labels by the switching unit 301 and then sent to the main switching unit 101 of the main control board 100.
3. The main switching unit 101 determines to distribute the service flow to the main service processing unit 103 of the main control board 100 or the service processing board 200 according to the label of the service flow.
4. The service flow distributed to the service processing board 200:
1) firstly, the service flow arrives at the switching unit 201 of the service processing board 200, and the switching unit 201 still sends the service flow to the auxiliary service processing unit 204 of the service processing board 200 for processing according to the label of the service flow;
2) after being processed by the auxiliary service processing unit 204, if the service flow still needs to be forwarded, the service flow is marked with the egress information and sent back to the switching unit 201 of the service processing board 200;
3) the switching unit 201 of the service processing board 200 sends the service flow out from a physical port of the service processing board 200 according to the outlet information of the service flow, or sends the service flow to the main switching unit 101 of the main control board 100, and the service flow is sent to the switching unit of another switching board/service processing board.
5. The traffic flow distributed to the main service processing unit 103 of the main control board 100:
1) after being processed by the main service processing unit 103, if the service flow needs to be forwarded, the service flow is marked with the exit information and sent back to the main switching unit 101 on the main control board;
2) the main switching unit 101 sends the service flow to a switching unit of a certain switching board/service processing board according to the outlet information of the service flow;
3) the switching unit of a certain switching board/service processing board sends out the service flow from a certain physical port of the board according to the outlet information of the service flow.
In practical use, the switch of the invention can work normally without a service processing single board. The equipment manager can upgrade one or more switch boards with reserved interfaces to a service processing board according to requirements. Fig. 4 is a schematic structural diagram of a third embodiment of the switch according to the present invention. This embodiment differs from the first embodiment in that the switch does not comprise a traffic handling board, but comprises one or more switching boards 300 with reserved interfaces. The switch board 300 includes a switch unit 301 and a management unit 302 interconnected with each other, and includes two physical ports 303 connected to the switch unit 301, so that the switch board has the same function as the existing switch board, and also includes a reserved interface 304 connected to the switch unit 301 and the management unit 302, respectively, for hooking the auxiliary service processing unit, so that the auxiliary service processing unit has an expansion capability of service processing.
Fig. 5 is a schematic structural diagram of an embodiment of a service processing board of the present invention. In this embodiment, the service processing board includes, in addition to the switching unit 201 and the management unit 202 which are interconnected with each other, and two physical ports 203 connected to the switching unit 201, so that the service processing board has a function of a switching board, an auxiliary service processing unit 204 which is connected to the switching unit 201 and the management unit 202, respectively, so that the service processing board has a service processing capability.
In this embodiment, since the service processing board includes the auxiliary service processing unit, compared with the existing switching board, the service processing board has the service processing capability, so that in the switch formed after being connected with the main control board, the processing of part of services can be shared, thereby reducing the load of the main service processing unit on the main control board; and with the improvement of the original service performance, under the condition that the processing capacity of the main service processing unit is limited, the partial load of the main service processing unit can be shared, so that the overall service processing capacity of the switch is improved.
Fig. 6 is a schematic structural diagram of an embodiment of a switch board according to the present invention. In this embodiment, the switch board 300 includes a switch unit 301 and a management unit 302 interconnected with each other, and includes two physical ports 303 connected to the switch unit 301, so that the switch board has the same function as an existing switch board, and further includes a reserved interface 304 connected to the switch unit 301 and the management unit 302, respectively, for hooking the auxiliary service processing unit, so that the auxiliary service processing unit has an expansion capability of service processing.
In this embodiment, because the reserved interface is added in the switch board, with the increase of the number of services of the switch or the improvement of the service performance requirement, the auxiliary service processing unit can be hooked on the reserved interface under the condition that the service processing capability of the switch is limited, so as to improve the overall service processing capability of the switch and enhance the expansion capability of the service processing of the switch.
The reserved interface further comprises: a data channel interface connected with the switching unit and used for providing a connection interface between the auxiliary service processing unit and the switching unit; and a management channel interface connected with the management unit and used for providing a connection interface between the auxiliary service processing unit and the management unit.
It should be understood by those skilled in the art that the main service processing unit and the auxiliary service processing unit are different in the location of the service processing unit, and when the service processing unit is located on the main control board, the service processing unit is referred to as the main service processing unit, and when the service processing unit is mounted on the switch board or located on the service processing board, the service processing unit is referred to as the auxiliary service processing unit. The main service processing unit and the auxiliary service processing unit may be formed by a CPU, an ASIC (Application-Specific integrated Circuit), or an NP (Network Processor). Different service processing units can process different service types or simultaneously process a combination of multiple services according to specific internal design.
The services that the switch of the invention can process at least comprise the following items:
MPLS (Multi-Protocol Label Switching) Protocol processing and packet forwarding;
PBR (Policy Based Routing) protocol processing;
NAT (Network Address Translation) message forwarding;
filtering various messages based on a filtering rule;
classifying, sampling and assembling the message based on an IPFIX (IP Flow Information eXport, IP data Flow Information output) protocol;
PBB/PBT (Provider Backbone Bridge/Provider Backbone Transport) protocol handling and message forwarding.
In actual requirements, the service processing board may not provide a physical port.
It should be understood by those skilled in the art that the switch described in the foregoing embodiment may be a routing switch, or may also be a switch such as a two-layer switch, a three-layer switch, or a four-layer switch, that is, a service processing board with an auxiliary service processing unit disposed in the switch such as the routing switch, the two-layer switch, the three-layer switch, or the four-layer switch, or a switching board with a reserved interface for hooking the auxiliary service processing unit extended thereto may be disposed.
In conclusion, the invention has the following beneficial effects:
(1) the switch of the invention adopts the multi-service parallel processing technology, i.e. the processing of the multi-service is dispersed to each service processing unit. The problem that the overall performance of equipment is reduced along with the increase of the number of the types of the carried services in a common switch is solved well.
(2) The auxiliary service processing unit can be directly mounted on the exchange single board, which brings two benefits: firstly, as many mounting positions as possible are provided for the service processing unit in the switch, and each switch board can mount the auxiliary service processing unit, so that the service expansion capability and the hardware upgrading capability of the equipment are improved to the maximum extent. And secondly, after the service processing unit is added, the physical ports with the maximized number can still be provided for the user. In a conventional switch, a service processing unit is not mounted on a switch board, but an independent board, and a slot of the switch needs to be monopolized, for example, one switch capable of providing 8 slots is provided, usually 2 slots are used for placing 2 main control boards (2 main control boards are backup for each other), and the remaining 6 slots are used for placing the switch board. If a service processing unit is to be added, the service processing board needs to replace the switch board, which results in fewer physical ports available to the user.
(3) The mount interface of the service processing unit uses a consistent generic design. That is, the data channels between the main service processing unit and the main switching unit on the main control board, and the data channels between the auxiliary service processing unit and the switching unit on each switching board/service processing board use a consistent general design; similarly, the management channels between the main service processing unit and the main management unit on the main control board, and the management channels between the auxiliary service processing unit and the management unit on each switch board/service processing board also use a consistent general design. In this way, it is ensured that the service processing units can be flexibly arranged in the switch. The consistency design of the channel also ensures that the future new service processing unit can be seamlessly and directly connected with the switch.
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 (9)
1. A switch comprises at least one main control board and at least one service processing single board, wherein the main control board comprises a main switching unit, a main management unit and a main service processing unit which are mutually interconnected, and the service processing single board comprises a switching unit and a management unit which are mutually interconnected; the switching unit and the main switching unit are interconnected, and the management unit and the main management unit are interconnected, characterized in that the service processing board further comprises an auxiliary service processing unit, which is respectively connected with the switching unit and the management unit and is used for processing the service flow forwarded to the switching unit by the main switching unit.
2. The switch of claim 1, further comprising: the system comprises a switch single board and a management unit, wherein the switch single board comprises a switch unit and a management unit which are mutually connected.
3. The switch according to claim 2, wherein the switch board further includes a reserved interface, which is connected to the switching unit and the management unit, respectively, and is configured to attach an auxiliary service processing unit.
4. The switch board of claim 3, wherein the reserved interface comprises:
the data channel interface is connected with the switching unit and is used for connecting the switching unit and the auxiliary service processing unit;
and the management channel interface is connected with the management unit and is used for connecting the management unit and the auxiliary service processing unit.
5. A service processing single board comprises a switching unit and a management unit which are mutually connected, and is characterized by also comprising an auxiliary service processing unit which is respectively connected with the switching unit and the management unit.
6. The service processing board according to claim 5, further comprising at least two physical ports, connected to the switching unit.
7. An exchange single board includes an exchange unit and a management unit which are interconnected, and is characterized by also including a reserved interface which is respectively connected with the exchange unit and the management unit and is used for connecting an auxiliary service processing unit.
8. The switch board according to claim 7, further comprising at least two physical ports, connected to the switch unit.
9. The switch board according to claim 7 or 8, wherein the reserved interface comprises:
the data channel interface is connected with the switching unit and is used for connecting the switching unit and the auxiliary service processing unit;
and the management channel interface is connected with the management unit and is used for connecting the management unit and the auxiliary service processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101208632A CN101119208A (en) | 2007-08-28 | 2007-08-28 | Switchboard, service processing board and switching board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101208632A CN101119208A (en) | 2007-08-28 | 2007-08-28 | Switchboard, service processing board and switching board |
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| CN101119208A true CN101119208A (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101208632A Pending CN101119208A (en) | 2007-08-28 | 2007-08-28 | Switchboard, service processing board and switching board |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101882097A (en) * | 2010-06-18 | 2010-11-10 | 福建星网锐捷网络有限公司 | Main control board, embedded system and backup method for embedded system |
| CN102006223A (en) * | 2010-11-17 | 2011-04-06 | 福建星网锐捷网络有限公司 | Data transmission method, device and system between cards, board card and distributed system |
| CN102231710A (en) * | 2011-07-06 | 2011-11-02 | 中兴通讯股份有限公司 | Method for carrying out message interaction between single boards in network equipment and network equipment |
| CN101588299B (en) * | 2009-07-07 | 2012-01-04 | 杭州华三通信技术有限公司 | Message forwarding method of distributed apparatus and distributed apparatus and single board thereof |
| CN102789399A (en) * | 2012-07-06 | 2012-11-21 | 苏州汉明科技有限公司 | Inter-process communication method of multi-core distribution system |
| CN103117923A (en) * | 2013-01-18 | 2013-05-22 | 杭州华三通信技术有限公司 | Process management method and process management equipment |
| WO2016177187A1 (en) * | 2015-07-27 | 2016-11-10 | 中兴通讯股份有限公司 | Service processing method and device |
| CN107071086A (en) * | 2011-08-17 | 2017-08-18 | Nicira股份有限公司 | Logic L3 is route |
| CN111586331A (en) * | 2019-02-18 | 2020-08-25 | 浙江宇视科技有限公司 | Video processing equipment |
| CN112217670A (en) * | 2020-09-29 | 2021-01-12 | 北京东土军悦科技有限公司 | Network device and message processing method thereof |
| WO2025011029A1 (en) * | 2023-07-11 | 2025-01-16 | 华为技术有限公司 | Single board, network device, and management method |
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| CN101588299B (en) * | 2009-07-07 | 2012-01-04 | 杭州华三通信技术有限公司 | Message forwarding method of distributed apparatus and distributed apparatus and single board thereof |
| CN101882097A (en) * | 2010-06-18 | 2010-11-10 | 福建星网锐捷网络有限公司 | Main control board, embedded system and backup method for embedded system |
| CN102006223A (en) * | 2010-11-17 | 2011-04-06 | 福建星网锐捷网络有限公司 | Data transmission method, device and system between cards, board card and distributed system |
| CN102006223B (en) * | 2010-11-17 | 2013-06-19 | 福建星网锐捷网络有限公司 | Data transmission method, device and system between cards, board card and distributed system |
| CN102231710A (en) * | 2011-07-06 | 2011-11-02 | 中兴通讯股份有限公司 | Method for carrying out message interaction between single boards in network equipment and network equipment |
| CN102231710B (en) * | 2011-07-06 | 2017-12-19 | 甘肃甲骨文信息技术有限公司 | The method and the network equipment of message interaction are carried out in the network equipment between veneer |
| CN107071086A (en) * | 2011-08-17 | 2017-08-18 | Nicira股份有限公司 | Logic L3 is route |
| US11695695B2 (en) | 2011-08-17 | 2023-07-04 | Nicira, Inc. | Logical L3 daemon |
| US10868761B2 (en) | 2011-08-17 | 2020-12-15 | Nicira, Inc. | Logical L3 daemon |
| CN107071086B (en) * | 2011-08-17 | 2020-06-05 | Nicira股份有限公司 | Logical L3 routing |
| CN102789399A (en) * | 2012-07-06 | 2012-11-21 | 苏州汉明科技有限公司 | Inter-process communication method of multi-core distribution system |
| CN102789399B (en) * | 2012-07-06 | 2015-10-21 | 苏州汉明科技有限公司 | Inter-process communication methods in multinuclear distributed system |
| CN103117923B (en) * | 2013-01-18 | 2016-06-29 | 杭州华三通信技术有限公司 | A kind of process management method and equipment |
| CN103117923A (en) * | 2013-01-18 | 2013-05-22 | 杭州华三通信技术有限公司 | Process management method and process management equipment |
| CN106411544A (en) * | 2015-07-27 | 2017-02-15 | 中兴通讯股份有限公司 | Business processing method and device |
| WO2016177187A1 (en) * | 2015-07-27 | 2016-11-10 | 中兴通讯股份有限公司 | Service processing method and device |
| CN111586331A (en) * | 2019-02-18 | 2020-08-25 | 浙江宇视科技有限公司 | Video processing equipment |
| CN112217670A (en) * | 2020-09-29 | 2021-01-12 | 北京东土军悦科技有限公司 | Network device and message processing method thereof |
| WO2025011029A1 (en) * | 2023-07-11 | 2025-01-16 | 华为技术有限公司 | Single board, network device, and management method |
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