CN2669500Y - Loop exchanger stacking device - Google Patents
Loop exchanger stacking device Download PDFInfo
- Publication number
- CN2669500Y CN2669500Y CNU2003201137846U CN200320113784U CN2669500Y CN 2669500 Y CN2669500 Y CN 2669500Y CN U2003201137846 U CNU2003201137846 U CN U2003201137846U CN 200320113784 U CN200320113784 U CN 200320113784U CN 2669500 Y CN2669500 Y CN 2669500Y
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- CN
- China
- Prior art keywords
- control information
- exchanger
- stacking
- switch
- port
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- Expired - Fee Related
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Abstract
The utility model discloses a loop exchanger stacking device, which comprises at least two exchangers. The exchangers are connected via the two stacking ports of the inside stacking units in the form of daisy chain. The inside stacking unit of the exchanger comprises a storage unit specially for caching the control information message and a storage unit specially for caching the data information message, and the two storage units are connected with the stocking ports. The staking port of the exchanger also comprises a retransmission unit that can preferentially retransmit the control information of the stacking port. With the retransmission unit arranged in the exchanger, the control information transmitted between the exchangers has a higher priority than the dada information, so the control information is preferentially transmitted at any time, thus ensuring the high manageability of the stacking system. The utility model can ensure that the control channel is still reliable and expedite when the transmission bandwidth of the data information transmitted between the exchangers is large, and thus the master exchanger can manage and control the slave exchanger.
Description
Technical field:
The utility model relates to a kind of communication processing apparatus, relates in particular to a kind of annular exchange piling device.
Background technology:
(Stack) technology of piling up links together several platform boxlike switches with piling up cable, increased switch ports themselves density, realize inter-exchange high-speed interconnect and unified management, from in logic, they belong to same equipment, as long as sign in on wherein any switch, just can all switches in piling up be managed and dispose, very convenient user uses.Star and ring topology are the stack manners of using always, and the center of star-shaped stack is a single point failure point, that is to say when center switch breaks down, and whole transmission network just will be paralysed, huge potential safety hazard is arranged, so generally adopt daisy chain ring topology stack manner.As shown in Figure 1, switch has included between two stack ports of 1,2,3 switches of two stack ports and has connected it successively with piling up cable.
A significant advantage of piling up technology is exactly the switch that is stacked can be managed as a logical device, thereby reduced maintenance management workload widely to many boxlike switches, also strengthened the unified control of these equipment and the ability of management, this safeguards significant for real network.
Information transmitted was divided into pile system control and management information between stacked switch was mutual, was called for short control plane information; The user data package informatin of switch-spanning is called for short datum plane information.These two kinds of communications all need by piling up cable transmission, that is to say that they pass through cable transmission simultaneously, and, the data message flow is big more, and the available bandwidth of control information transmission is just few more, when the data message flow between the control information stacked switch meets or exceeds the bandwidth of stack port, control information between the switch is flooded by data message, it is unreliable to transmit, and pile system begins collapse, can not manage.As seen, existing annular exchange piling device performance also is not very stable.
The utility model content:
At the existing problem and shortage of above-mentioned existing annular exchange piling device, the purpose of this utility model provides a kind of annular exchange piling device that can divide branchs priority to transmit control and state information, general data.
The utility model is achieved in that a kind of annular exchange piling device, include at least 2 switches, two stack ports of described switch by stackable unit in it connect in the mode of daisy chain, the inside stackable unit of described switch comprises the memory cell of special buffer memory control information message and the memory cell of special data cached infomational message, and this two memory cell is connected with described stack port.
Further, described exchange piling port also comprises and can preferentially transmit the retransmission unit of described stack port control information.
Further, described control information is specially the state and the control information of described switch.
Further, specifically cable connects by piling up between the described switch.
The utility model is by being provided with the retransmission unit in the switch, and the control information of transmitting between the stacked switch has higher priority than data message, whenever preferential communicating control information, thus guaranteed the high manageability of pile system.When the utility model can guarantee that the data information transfer bandwidth is very big between switch, control channel is still reliable, and was unimpeded, thereby the master switch can be managed control slave switch.
Description of drawings:
Below in conjunction with accompanying drawing, the utility model is made detailed description.
Fig. 1 uses schematic diagram for existing stacked structure;
Fig. 2 is a stack module structural representation of the present utility model.
Embodiment:
As shown in Figure 2, the utility model adopts special-purpose stack module to pile up connection, and stack module has three ports, and 1,2 ports wherein are as the stack port that is connected with other switches; Another internal port 0 connects exchange logic module of this switch and the General Physics port communication of this switch.
The transmit queue that stack module provides 2 classes can set priority on stack port, every kind of formation has the buffer unit of oneself, and is as shown in the table:
| Priority | Information type | Use | Characteristics |
| A | Control information | Stack arrangement, topology information | High priority |
| B | Data message | The general data bag | Normal priority |
Because the priority of category-A formation is higher than category-B, as long as therefore category-A information arranged, retransmission unit of the present utility model will be transmitted the category-A formation, at first transmit some states and the control information of stacked switch, in the time of can guaranteeing that the data information transfer bandwidth is very big between switch, control channel is still reliable, and is unimpeded, thereby assurance master switch can be managed control slave switch all the time; The category-B formation is used to transmit general data information, even some general data bag is dropped, whole pile system is still stablized available.
The buffer unit of two formations of stack port is used for depositing A and category-B infomational message respectively, need all deposit one of two formations earlier from the message that this stack port sends out; When the retransmission unit of stack port sends message, all from the A formation, get earlier message at every turn and send, send the message that sends again behind the message of A formation in the B formation.
Adopt the switch of the utility model exchanged form to be no less than 2, but generally can surpass 10, utilize simple Topology Discovery agreement and algorithm just can realize piling up the setting of transmitting, simple and practical in the extreme.
Claims (4)
1. annular exchange piling device, include at least 2 switches, two stack ports of described switch by stackable unit in it connect in the mode of daisy chain, it is characterized in that, the inside stackable unit of described switch comprises the memory cell of special buffer memory control information message and the memory cell of special data cached infomational message, and this two memory cell is connected with described stack port.
2. annular exchange piling device as claimed in claim 1 is characterized in that, described exchange piling port also comprises can preferentially transmit the retransmission unit of described stack port control information.
3. annular exchange piling device as claimed in claim 1 is characterized in that described control information is specially the state and the control information of described switch.
4. annular exchange piling device as claimed in claim 1 is characterized in that, specifically cable connects by piling up between the described switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201137846U CN2669500Y (en) | 2003-12-31 | 2003-12-31 | Loop exchanger stacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201137846U CN2669500Y (en) | 2003-12-31 | 2003-12-31 | Loop exchanger stacking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669500Y true CN2669500Y (en) | 2005-01-05 |
Family
ID=34438883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201137846U Expired - Fee Related CN2669500Y (en) | 2003-12-31 | 2003-12-31 | Loop exchanger stacking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2669500Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393070C (en) * | 2005-06-14 | 2008-06-04 | 杭州华三通信技术有限公司 | Method for message redirection in stacking equipment |
| CN101645850A (en) * | 2009-09-25 | 2010-02-10 | 杭州华三通信技术有限公司 | Forwarding route determining method and equipment |
| CN101702678B (en) * | 2009-11-19 | 2012-01-04 | 杭州华三通信技术有限公司 | Star-shaped stack system and method thereof |
| CN109167739A (en) * | 2018-09-19 | 2019-01-08 | 盛科网络（苏州）有限公司 | Message processing method and system in a kind of switchboard stacked system |
| CN113179228A (en) * | 2021-04-15 | 2021-07-27 | 浪潮思科网络科技有限公司 | Method, device, equipment and medium for improving switch stacking reliability |
-
2003
- 2003-12-31 CN CNU2003201137846U patent/CN2669500Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393070C (en) * | 2005-06-14 | 2008-06-04 | 杭州华三通信技术有限公司 | Method for message redirection in stacking equipment |
| CN101645850A (en) * | 2009-09-25 | 2010-02-10 | 杭州华三通信技术有限公司 | Forwarding route determining method and equipment |
| CN101645850B (en) * | 2009-09-25 | 2013-01-30 | 杭州华三通信技术有限公司 | Forwarding route determining method and equipment |
| CN101702678B (en) * | 2009-11-19 | 2012-01-04 | 杭州华三通信技术有限公司 | Star-shaped stack system and method thereof |
| CN109167739A (en) * | 2018-09-19 | 2019-01-08 | 盛科网络（苏州）有限公司 | Message processing method and system in a kind of switchboard stacked system |
| CN113179228A (en) * | 2021-04-15 | 2021-07-27 | 浪潮思科网络科技有限公司 | Method, device, equipment and medium for improving switch stacking reliability |
| CN113179228B (en) * | 2021-04-15 | 2022-12-23 | 浪潮思科网络科技有限公司 | Method, device, equipment and medium for improving switch stacking reliability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUAWEI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GANGWAN NETWORK CO., LTD. Effective date: 20060922 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060922 Address after: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee after: Huawei Technologies Co., Ltd. Address before: 100089, No. 21 West Third Ring Road, Beijing, Haidian District, Long Ling Building, 13 floor Patentee before: Harbour Networks Holdings Limited |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050105 Termination date: 20111231 |