CN105227463B - A kind of communication means in distributed apparatus between business board - Google Patents
A kind of communication means in distributed apparatus between business board Download PDFInfo
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- CN105227463B CN105227463B CN201410264274.1A CN201410264274A CN105227463B CN 105227463 B CN105227463 B CN 105227463B CN 201410264274 A CN201410264274 A CN 201410264274A CN 105227463 B CN105227463 B CN 105227463B
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Abstract
The present invention provides the communication means between business board in a kind of distributed apparatus, including：Issue list item and ACL between plate；Incoming interface matches the message received according to ACL, obtains and corresponding executes action；The network interface that message is sent to corresponding business board is acted according to execution；Each business board carries out the message that network interface enters the CPU that corresponding business board is sent to using processing and by the message that network interface enters according to from list item between body；Next business board corresponding to message is not found according to list item between plate in current business board, then the outgoing interface found using the business board of forward mode forwards the packet out distributed apparatus.It to make business board that the message be handled and be forwarded according to list item between plate, is forwarded using channel between inner panel when being forwarded to next business board, so as to improve the problem of networking complexity.
Description
Technical field
The present invention relates to field of communication technology, more particularly to the communication means in a kind of distributed apparatus between business board.
Background technology
With the development of information technology, demand of the enterprise to network equipment safety service is higher and higher.Distributed apparatus can
To add the safety service board of different mode according to own service demand.Wherein, the safety service board of different mode is dividing
Use in cloth equipment specifically includes the forward mode and transparent service board of forwarding service board there is also various modes
Transparent mode.
The polylith different business board mixed insertion in distributed apparatus on forwarding service plate in use, configure in the prior art
Route table items or forwarded list item, configure transparent interface pair on transparent service plate, forwarding service plate and transparent service plate it
Between be attached with external cable, in distributed apparatus, message is according to forwarded list item and transparent interface in difference
Business board between forwarded by external cable.
However, the scheme of the prior art, a large amount of forwarded list item is needed to configure in each business board, to network pipe
Reason personnel requirement is higher, to the problem for causing networking excessively complicated.
Invention content
In view of this, the present invention provides the communication means between business board in a kind of distributed apparatus, to solve the prior art
The problem of middle networking complexity.
An embodiment of the present invention provides the communication means between business board in a kind of distributed apparatus, which is characterized in that distribution
Formula equipment includes channel between master control board card, at least one business board and inner panel, wherein master control board card and business board are equal
Including CPU, business board further include shunt hardware and with the network interface that is connected of shunting hardware, at least one business board
Include the business board of a forward mode；
The CPU of master control board card is issued to the CPU of each business board between the plate that management-side is configured according to flow control policy
List item issues access control list ACL to the incoming interface of distributed apparatus；
Incoming interface receives and preserves the ACL that the CPU of master control board card is issued, and the message progress according to ACL to receiving
Match, acquisition message identical with feature in ACL is corresponding to execute action, and the message to receiving carries out corresponding execution
Action；When the message received is in the case of being sent to corresponding business board by execution action, then will receive
Message is sent to the network interface of corresponding business board；
The CPU of each business board receives list item between the plate that master control board card issues, and list item between plate is stored in itself
It shunts in hardware, according to from list item between body, the message that network interface enters is carried out using processing and the message for entering network interface
It is sent to the CPU of corresponding business board；
Next business board corresponding to message is not found according to list item between plate in current business board, then utilizes and turns
The outgoing interface that the business board of hair pattern is found forwards the packet out distributed apparatus.
Preferably, the flow control policy includes traffic characteristic and corresponding inter-process path；At the inside
Line of reasoning diameter includes multiple path points, includes at least one business board in each path point；List item includes flow spy between the plate
Sign and corresponding next path point.
Preferably, the message entered to network interface be sent to accordingly using processing and by the message that network interface enters
Business board CPU, do not finding next business board corresponding to message, then utilize forward mode business board
The outgoing interface found forwards the packet out distributed apparatus, specifically includes：
The CPU of business board carries out using processing the message that network interface enters according to list item between the plate of itself；
Using after treatment, it is corresponding next that the CPU of business board according to list item between plate judges whether the message has
Path point, if so, the CPU for the business board message being sent to by channel between inner panel in next path point, if
It is no, then according to the forwarded entry lookup in the business board of forward mode to outgoing interface, and according to the outgoing interface by the report
Text transfers distributed apparatus.
Preferably, the method further includes：
The CPU of master control board card configures at least one business board to bypass mode according to the instruction of management-side；
The CPU of business board is in the case where the operating mode of itself is bypass mode, in the CPU roots of the business board
The message that network interface enters is carried out according to list item between the plate of itself, using after processing, to abandon the message.
Preferably, in the case where at least one business board includes the business board of transparent mode, the side
Method further comprises：
In the inter-process path, it is located at the business board of all transparent modes before the business board of forward mode
In card, the traffic characteristic of list item is incoming interface between plate；The industry of all transparent modes after the business board of forward mode
It is engaged in board, the traffic characteristic of list item is outgoing interface between plate.
Preferably, the next business board not found according to list item between plate in current business board corresponding to message
Card, the then outgoing interface found using the business board of forward mode are forwarded the packet out distributed apparatus, specifically included：
Current business board be forward mode business board in the case of, current business board according to list item between plate not
Next business board corresponding to message is found, then the forwarded table learnt in advance for utilizing current business board to preserve
, the outgoing interface corresponding to message is searched, and the message is transferred by distributed apparatus according to the outgoing interface；
Current business board be transparent mode business board in the case of, current business board according to list item between plate not
Next business board corresponding to message is found, then the outgoing interface information entrained by the message, utilizes the outgoing interface
The message is transferred into distributed apparatus.
Preferably, in the case where distributed apparatus further includes exchanging board, the method further includes：
The CPU of master control board card issues list item between plate to board is exchanged；
List item between the plate that the shunting hardware acceptance of exchange board and the CPU for preserving the master control board card are issued；
Wherein, which includes the exchange chip as shunting hardware.
An embodiment of the present invention provides the communication means between business board in a kind of distributed apparatus, and the CPU of master control board card is certainly
The CPU of each business board of trend issues list item between plate, and issues accesses control list to the incoming interface of distributed apparatus
In ACL, the ACL corresponding to the message that incoming interface receives execution action for be sent to corresponding business board in the case of,
The message is sent to corresponding business board, to make business board that the message be handled and be turned according to list item between plate
Hair, is forwarded when being forwarded to next business board using channel between inner panel, so as to improve the problem of networking complexity.
Description of the drawings
Fig. 1 is method flow diagram provided in an embodiment of the present invention；
Fig. 2 is apparatus structure schematic diagram provided in an embodiment of the present invention.
Specific implementation mode
According to the prior art, the polylith different business board mixed insertion in distributed apparatus is in use, on forwarding service plate
Route table items or forwarded list item are configured, transparent interface pair, forwarding service plate and transparent service are configured on transparent service plate
Be attached with external cable between plate, in distributed apparatus, message according to forwarded list item and transparent interface to
It is forwarded by external cable between different business boards.
However, the scheme of the prior art, a large amount of forwarded list item is needed to configure in each business board, to network pipe
Reason personnel requirement is higher, to the problem for causing networking excessively complicated.
As shown in Figure 1, in view of the above-mentioned problems, an embodiment of the present invention provides logical between business board in a kind of distributed apparatus
Letter method, distributed apparatus include channel between master control board card, at least one business board and inner panel, wherein master control board card
Include CPU with business board, business board further include shunt hardware and with the network interface that is connected of shunting hardware, described at least one
A business board includes the business board of a forward mode；
Step 101：The CPU of master control board card issues management-side to the CPU of each business board and is matched according to flow control policy
List item between the plate set issues access control list ACL to the incoming interface of distributed apparatus；
Step 102：Incoming interface receives and preserves the ACL that the CPU of master control board card is issued, and according to ACL to the report that receives
Text is matched, and acquisition message identical with feature in ACL is corresponding to execute action, and the message to receiving carries out relatively
That answers executes action；In the case that the message received is is sent to corresponding business board by execution action, then will
The message received is sent to the network interface of corresponding business board；
Step 103：The CPU of each business board receives list item between the plate that master control board card issues, and list item between plate is preserved
In the shunting hardware of itself, according to from list item between body, to the message that network interface enters carry out using processing and by network interface into
The message entered is sent to the CPU of corresponding business board；
Step 104：And forward the packet out distributed apparatus using the outgoing interface that the business board of forward mode is found.
According to said program, the CPU of CPU from each business board of trend of master control board card issues list item between plate, Yi Jixiang
The incoming interface of distributed apparatus issues access control list ACL, and the execution in the ACL corresponding to the message that incoming interface receives is dynamic
In the case of being sent to corresponding business board, which is sent to corresponding business board, to make business board
The message is handled and forwarded according to list item between plate, is carried out using channel between inner panel when being forwarded to next business board
Forwarding, so as to improve the problem of networking complexity.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 2, in distributed apparatus provided in an embodiment of the present invention, including master control board card, at least one business board
Channel between card and inner panel, wherein master control board card and business board are including CPU, memory and nonvolatile memory, industry
Business board further includes the network interface for shunting hardware and being connected with shunting hardware, and at least one business board includes one and turns
The business board of hair pattern.
Wherein, can also include exchanging board in distributed apparatus provided in an embodiment of the present invention.
Each board in distributed apparatus is connected by internal switching network (Fabric).Wherein, board is exchanged not
It is necessary component, when the network equipment has more networks access demand, exchange board can be introduced.
Wherein, shunting hardware major function is that message flow is distributed to specified industry according to the rule that master control board card is specified
It is handled on business board.Taking cost into account, exchange chip is a kind of more satisfactory shunting hardware.It is most typical in exchange chip
It is Ethernet switching chip, relative inexpensiveness is also propped up in addition to supporting diverter function as ACL (accesses control list)
It holds and two layers or three layers forwarding is carried out to message.Other realization methods are not precluded in certain embodiment of the present invention, for example use
ASIC (Application Specific Integrated Circuit, integrated circuit) or logical device realize that this takes
Certainly the considering for shunting flexibility ratio, efficiency and cost in developer；Only come so that exchange chip is realized as an example below
Explanation.
In embodiments of the present invention, the CPU of master control board card is carried out for managing other boards, such as to other each boards
Configuration.The CPU of master control board card also have an important task be by various procotols be each business board generate plate between
List item, say by OSPF (Open Shortest Path First, ospf) agreements and ARP
The study of (Address Resolution Protocol, address resolution protocol) agreement generates forwarded list item, or passes through
MPLS (Multi-Protocol Label Switching, multiprotocol label switching) agreement learns label forwarding list item, then
List item between plate is issued on each business board.Unlike existing frame loosely coupled devices, the embodiment of the present invention
List item is uniformly issued by master control borad between plate.In existing frame loosely coupled devices, in a network due to each business board card
Be an independent network node, possess independent management IP address, that is to say, that from network management system it will be clear that
This board is a network equipment on network；At this time each board usually oneself come by various procotols come generate from
List item between oneself plate.Wherein, master control borad also needs to the business board Configuration network forwarding-table item for forward mode, so that message exists
The outgoing interface of forwarded entry lookup to message is utilized in the business board of forward mode.
Since list item is the unified generation of master control board card, the design fusion of control plane between plate in the embodiment of the present invention
The advantages of traditional distributed network equipment, the shortcomings that having avoided loosely coupled devices.
After the incoming interface of distributed apparatus receives protocol massages, according to the ACL table item that itself is preserved, to agreement report
Text is matched, and acquisition message identical with feature in ACL is corresponding to execute action.As shown in table 1, enter for distributed apparatus
The ACL table item that interface preserves.
Table 1：
| Traffic characteristic | Correspondence executes action |
| a | It abandons |
| b | On send to business board 1 |
| c | On send to business board 2 |
| d | Directly transfer equipment |
| …… | …… |
Wherein, distributed apparatus may include multiple incoming interfaces, the above-mentioned ACL preserved according to the incoming interface of distributed apparatus
List item, when the traffic characteristic that incoming interface receives be a, then by the packet loss；When the traffic characteristic that incoming interface receives be b,
Then by the message up sending to business board 1；When the traffic characteristic that incoming interface receives be c, then by the message up sending to business board 2；
When the traffic characteristic that incoming interface receives be d, then the message is directly transferred into equipment.Etc..
Wherein, which can be multiple traffic characteristics including source IP address, incoming interface serial number etc..
Wherein, each business board is for protocol massages, can in the way of the prior art on send at control plane
Reason, also having a small amount of protocol massages certainly is handled on the CPU for can stay in business board, and the business board of being equivalent to is shared
The task of seldom a part of procotol study.The business board and the traditional distributed network equipment of certain embodiment of the present invention
In so-called business board be essentially different again, first, the business board described in the present invention carries two tasks, one
It is the business processing to application of electronic report grade, another is the business processing that forwarded grade is carried out to message；So-called application layer
Business processing refers to the business processing on covering network layer from the point of view of open seven layer model, such as FW (FireWall, fire prevention
Wall), IPS (Intrusion Prevention System, intrusion prevention system) and UAG (forefront Unified
Access Gateway, remote access service) processing etc. to message.
Referring to FIG. 2, the present invention allows network administrator to carry out flexibly rational planning to the process flow of message.Management
Member can be by network management interface to CPU (namely software view) sending flow rate control strategy of master control board card, this flow control
System strategy includes the traffic characteristic (characterizing specific message flow) of message and corresponding inter-process path, one it is internal at
Line of reasoning diameter includes one or more path points, includes at least one business board in each path point.It is management-side as shown in table 2
The flow control policy issued.
Table 2：
Example in table 2, it is to belong to this network segment of 119.207.210.0/24 that manager, which can define source IP address (SIP),
Message distributed apparatus is entered by incoming interface after, first pass through business board 1, then pass through business board 3, next again
By business board 4, finally pass through business board 6.It is 202.200.221.0/24 that administrator, which can equally define source IP address,
Message successively pass through business board 2, business board 3, business board 5 and business board 7.
In embodiments of the present invention, the business board in the processing path in table 2 has and only there are one the industry of forward mode
Business board, other are all the business boards of transparent mode.
After the CPU of master control board card receives the flow control policy from administrator, first according to the flow control policy
List item is issued on the shunting hardware of each board between generating plate, and is issued in the incoming interface of distributed apparatus.Wherein should
List item includes next path point in traffic characteristic and corresponding inter-process path between plate.Shunting hardware can be by multiple plate
Between list item be stored between the plate of itself in table.Such as the message of SIP=119.207.210.0/24 enters by incoming interface
It when distributed apparatus, is matched according to message, the correspondence execution action got is by the message up sending to business board 1.Therefore,
The message is sent on business board 1 and is handled.Herein it should be noted that below unless otherwise noted, passing through and inquiring plate
Between list item and determine the message for being sent to business board and be destined to the CPU of business board.
In embodiments of the present invention, traffic characteristic in the ACL table item preserved in incoming interface can be the source IP of message
Location；The traffic characteristic of list item can be that message enters entering for distributed apparatus between the plate preserved in shunting hardware in business board
Interface serial number.As shown in table 3, by taking table between the plate preserved in the shunting hardware of business board 1 as an example.Between plate in business board
List item includes incoming interface serial number and corresponding next path point.
Table 3：
| Incoming interface serial number | Next path point |
| 1 | Business board 2 |
| 2 | Business board 3 |
| …… | …… |
For the business board in each path point, list item itself includes mainly that two parts are anticipated between the plate of its own
Justice：First, the message of what traffic characteristic needs in this board apply to handle, and second, after having handled the message, under
One will carry out the message using the board (namely next path point in table 3) of processing which is.If business board
Then illustrate that next path point of the message is usually sky including list item between the corresponding plate of the message in table between plate.Such as 3 institute of table
Show, if business board 1 receives the message of incoming interface serial number 8, and between the plate of itself the shunting hardware in table do not include into
List item between the plate of interface serial number 8, then the message does not include next business board.
In embodiments of the present invention, since processing path includes and only includes the business board of a forward mode, because
This, in the processing sequence of the business board of processing path, the industry of all transparent modes before the business board of forward mode
It is engaged in board, list item is message incoming interface serial number and corresponding next path point between the plate of preservation；In the business of forward mode
In the business board of all transparent modes after board, between the plate of preservation list item be message outgoing interface serial number with it is corresponding next
A path point.Wherein, the outgoing interface of message is, the business board of forward mode carries out using after processing message, using pre-
Interface corresponding to the message of the forwarded entry lookup first learnt.
And in the case where current business board is the business board of forward mode, current business board is according to list item between plate
Next business board corresponding to message is not found, then the forwarded learnt in advance for utilizing current business board to preserve
List item searches the outgoing interface corresponding to message, and the message is transferred distributed apparatus according to the outgoing interface；
Current business board be transparent mode business board in the case of, current business board according to list item between plate not
Next business board corresponding to message is found, then the outgoing interface information entrained by the message, utilizes the outgoing interface
The message is transferred into distributed apparatus.
By taking source IP address is the message of 119.207.210.0/24 as an example.The message enters the incoming interface sequence of distributed apparatus
Number it is 1, wherein business board 1, business board 3, business board 6 in table 2 are the business board of transparent mode, and business board 4 is forwarding
The business board of pattern.
The incoming interface of distributed apparatus receives the message, is matched to the message, obtains holding corresponding to the message
Action is used as and above send business board 1.The message is sent to business board 1 by the incoming interface of distributed apparatus；Business board 1 is by net
Mouth receives the message, the application processing between the plate preserved according to itself shunting hardware corresponding to the list item incoming interface 1, to the message
It carries out using processing, and finds next path point corresponding to the incoming interface, and the message is sent to next path
Put corresponding business board 3.The network interface of business board 3 receives the message, and list item should between the plate preserved according to itself shunting hardware
Application processing corresponding to incoming interface 1, carries out using processing the message, and find next road corresponding to the incoming interface
Diameter, and the message is sent to the corresponding business board of the next path point 4.Business board 4 is the business board of forward mode
Card, therefore the application between the plate preserved according to itself shunting hardware corresponding to list item incoming interface 1 is handled, and is applied to the message
Processing, and two or three layers of forwarding are carried out to the message according to the forwarded list item learnt in advance, it is corresponding to find the message
Outgoing interface 2.Next path point of the business board 4 corresponding to list item incoming interface between the plate of itself shunting hardware preservation,
And the message is sent to the corresponding business board of the next path point 6.The network interface of business board 6 receives the message, root
Application processing between the plate preserved according to itself shunting hardware corresponding to the list item outgoing interface 2, carries out using processing the message, and
Next path point corresponding to the message is searched, however the incoming interface 1 does not include corresponding next in this business board 6
Path point, then it includes next business board to illustrate the message not.Then business board 6 sends out the message from the outgoing interface 2 found
Send out distributed apparatus.
Here it is worth noting that：Since the upper network interface of each board in the present invention is all that master control borad is visible, if
Outgoing interface is not in this business board, and channel forwards message from the outgoing interface between business board 6 again may be by plate.
Assuming that outgoing interface is a network interface on business board 4, message is sent to by the CPU of business board 6 by channel between plate at this time
Business board 4, at this time message need not move through the CPU of business board 4, shunting hardware can be directed through and sent out from corresponding network interface
It goes, shunting hardware does not need to matching distributing strategy table for the message of outgoing direction at this time certainly.
According to the above process, for any one message in other message flows, processing procedure is similar, only message
Incoming interface, processing path and outgoing interface it is different, no longer carefully state one by one herein.
In another embodiment, the network equipment of the invention can be used as a bypass equipment, at this time
The CPU of master control board card can configure business board to bypass mode according to the instruction of management-side, and business board is operated in bypass
When pattern, after completing the application processing of message, the message can be directly abandoned, without carrying out forwarded processing.
Bypass mode is commonly available to various audit class applications, main target be to entered by mirror-image fashion the message of this equipment into
Row audit obtains abandoning after auditing result.Be the equal of normal forwarded over because message is all that mirror image enters at this time
A copy of message in journey, therefore abandoned immediately after audit can be completed.
In another embodiment, for the business board board of transparent mode, business board enters specified entrance
Message, according to preconfigured stationary exit the message is sent after the application processing for completing the message.It is transparent
Pattern can use under the scenes such as IPS or online audit.It can be seen that the network equipment of the present invention can use user various
Networking requirements can configure corresponding operating mode as needed in different networkings.
In embodiments of the present invention, further include channel between plate between business board, the material in channel can be light between the plate
Fiber material, or other similar devices with high speed transmission data function, channel is distributed apparatus poly- between the plate
It establishes, need not be connected using external cable, therefore be not in the man-made fault of wiring error when conjunction.
The CPU of the CPU of master control board card from each business board of trend issues list item between plate, and entering to distributed apparatus
Interface issues access control list ACL, and the execution action in the ACL corresponding to the message that incoming interface receives is to be sent to correspondence
Business board in the case of, which is sent to corresponding business board, to make business board according to list item pair between plate
The message is handled and is forwarded, and is forwarded using channel between inner panel when being forwarded to next business board, so as to improve
The problem of networking complexity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (6)
1. the communication means in a kind of distributed apparatus between business board, which is characterized in that distributed apparatus includes master control board card, extremely
Few channel between a business board and inner panel, wherein including CPU, business board also wraps for master control board card and business board
The network interface for including shunting hardware and being connected with shunting hardware, at least one business board includes the industry of a forward mode
Business board；
The CPU of master control board card issues list item between the plate that management-side is configured according to flow control policy to the CPU of each business board,
Access control list ACL is issued to the incoming interface of distributed apparatus；
Incoming interface receives and preserves the ACL that the CPU of master control board card is issued, and is matched to the message received according to ACL, obtains
Take message identical with feature in ACL is corresponding to execute action, and the message to receiving carries out corresponding execution action；
In the case that the message received is is sent to corresponding business board by execution action, then the message received is sent out
It send to the network interface of corresponding business board；
The CPU of each business board receives list item between the plate that master control board card issues, and list item between plate is stored in the shunting of itself
In hardware, according to from list item between body, the message for the message that network interface enters using processing and by network interface enter is sent
To the CPU of corresponding business board；
In the case where current business board is the business board of forward mode, current business board is not searched according to list item between plate
To next business board corresponding to message, then the forwarded list item learnt in advance for utilizing current business board to preserve,
The outgoing interface corresponding to message is searched, and the message is transferred by distributed apparatus according to the outgoing interface；
In the case where current business board is the business board of transparent mode, current business board is not searched according to list item between plate
To next business board corresponding to message, then the outgoing interface information entrained by the message should using the outgoing interface
Message transfers distributed apparatus.
2. according to the method described in claim 1, it is characterized in that, the flow control policy includes traffic characteristic and correspondence
Inter-process path；The inter-process path includes multiple path points, includes at least one business board in each path point
Card；List item includes traffic characteristic and corresponding next path point between the plate.
3. according to the method described in claim 2, it is characterized in that, it is described to network interface enter message carry out using processing and
The message that network interface enters is sent to the CPU of corresponding business board, is not finding next business board corresponding to message
Card, the then outgoing interface found using the business board of forward mode are forwarded the packet out distributed apparatus, specifically included：
The CPU of business board carries out using processing the message that network interface enters according to list item between the plate of itself；
Judge whether the message has corresponding next path according to list item between plate in the CPU using after treatment, business board
Point, if so, the CPU for the business board message being sent to by channel between inner panel in next path point, if it is not, then
According to the forwarded entry lookup in the business board of forward mode to outgoing interface, and the message is forwarded according to the outgoing interface
Go out distributed apparatus.
4. according to the method described in claim 3, it is characterized in that, the method further includes：
The CPU of master control board card configures at least one business board to bypass mode according to the instruction of management-side；
The CPU of business board the operating mode of itself be bypass mode in the case of, the business board CPU according to oneself
List item carries out the message that network interface enters, using after processing, to abandon the message between the plate of body.
5. according to the method described in claim 3, it is characterized in that, including transparent mode at least one business board
Business board in the case of, the method further includes：
In the inter-process path, it is located at the business board of all transparent modes before the business board of forward mode
In, the traffic characteristic of list item is incoming interface between plate；The business of all transparent modes after the business board of forward mode
In board, the traffic characteristic of list item is outgoing interface between plate.
6. according to the method described in claim 1, it is characterized in that, distributed apparatus further include exchange board in the case of,
The method further includes：
The CPU of master control board card issues list item between plate to board is exchanged；
List item between the plate that the shunting hardware acceptance of exchange board and the CPU for preserving the master control board card are issued；
Wherein, which includes the exchange chip as shunting hardware.
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| CN201410264274.1A CN105227463B (en) | 2014-06-13 | 2014-06-13 | A kind of communication means in distributed apparatus between business board |
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| CN201410264274.1A CN105227463B (en) | 2014-06-13 | 2014-06-13 | A kind of communication means in distributed apparatus between business board |
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| CN106330553A (en) * | 2016-08-30 | 2017-01-11 | 杭州迪普科技有限公司 | Message forwarding method and device |
| CN106341338B (en) * | 2016-09-09 | 2019-09-17 | 杭州迪普科技股份有限公司 | A kind of retransmission method and device of message |
| CN106789536B (en) * | 2016-12-29 | 2019-11-12 | 杭州迪普科技股份有限公司 | The method and system of protocol massages are sent in a kind of VSM system |
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