CN108989085A - Message forwarding configuration method and device based on distributed network - Google Patents
Message forwarding configuration method and device based on distributed network Download PDFInfo
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- CN108989085A CN108989085A CN201810614413.7A CN201810614413A CN108989085A CN 108989085 A CN108989085 A CN 108989085A CN 201810614413 A CN201810614413 A CN 201810614413A CN 108989085 A CN108989085 A CN 108989085A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/54—Organization of routing tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/806—Broadcast or multicast traffic
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of, and the message based on distributed network forwards configuration method, this method comprises: the distributed network includes master control node and at least one distributed node；The described method includes: sending when master control node monitors that the member port for forming aggregation port changes and blocking instruction to all distributed nodes；Each distributed node sets the member port for itself belonging to the aggregation port to block forwarding state；If meeting preset condition, master control node sending port configuration information is forwarded configuration to all distributed nodes.Embodiment provided by the invention is able to solve the problem of message repeats transmission when aggregation port changes in the prior art.
Description
Technical field
The present invention relates to data communication field, espespecially a kind of message forwarding configuration method and dress based on distributed network
It sets.
Background technique
Distributed Ethernet switch (abbreviation distribution switch) refers mainly to more boxlikes or box exchange piling rises
The box-type equipment of the equipment or distributed forwarding come.The interchanger of this kind of deployment is a complete exchange on the user plane
The advantages such as machine, has and concentrate convenient, the easy extension of network interface in management, and maintenance cost reduces.Have two in distribution switch
Kind dominant role: master control node (such as the main management equipment stacked or box management board), distributed node (i.e. stacking slave
Or box line card).Master control node manages each distributed node for controlling, and the physical port of each distributed node can be grouped to one
A aggregation port, the physical port for forming aggregation port are known as member port.
With specific reference to Fig. 1, server has three links to connect with three distributed nodes of distribution switch respectively to build
The distributed node 1 of vertical aggregation port, PC and distribution switch connects, and here, node 1,2,3 only has one respectively in a distributed manner
It is illustrated for a member port 1,2,3.
When broadcasting packet forwards, in order to enable message balanced forwarding between three member ports, forwarding-table item can be to three
Member port poll is let pass, other two member port poll blocks.Such as a total of 300 list items, then the case where three member ports
Under, as shown in table 1 below, contents in table is as follows:
Table 1
If determining that message outlet is the aggregation port by hardware pipeline, message can be chosen according to preset balanced mode
Corresponding field carry out Hash calculation, then mould forwarding-table item sum, obtain final cryptographic Hash, for example cryptographic Hash is 3, then hits
The forwarding-table item of list item serial number 3 in table 1, that is, corresponding to message will forward from node 1.The cryptographic Hash that different messages are calculated can
Can be different, the hash of the Hash as obtained by message realizes equilibrium.
By taking Fig. 1 as an example, after topological arrangement settles out, three distributed nodes of distribution switch broadcast forwarding-table item
Table 1 as above.Assuming that broadcasting packet enters distributed node 1 from PC, due to being broadcasting packet, three distributions can be flooded to
It on node, is inquired through hardware pipeline and determines that target outlet is the aggregation port being connected with server, hit list item 3 through Hash calculation,
Distributed node 1 is let pass, distributed node 2 and 3 blocks, therefore final message is forwarded to server from distributed node 1.
At this time if the link that distributed node 3 is connect with server goes offline for some reason (LINK DOWN), three
The contents in table of a distributed node will be updated to table 2, the following state of particular content:
Table 2
However the time point that hardware is finally arranged in three distributed nodes may have nuance, may sometime tie
Point 2 has been switched to the states of 2 member port polls clearance, and what node 1 or node 3 were let pass also in 3 member port polls
State.Under this state, it is assumed that message hits list item 3 through Hash calculation, normally only should be forwarded to server from node 2, real
Border message can also forward again a to server from node 1, and such server just will receive double message.In the big number of data center
In the case where according to flow, more packet meeting occupied bandwidths may be squeezed out important message, and cause unpredictable problem.
Summary of the invention
The embodiment of the present invention provides a kind of message forwarding configuration method and device based on distributed network, existing to solve
There is the problem of message repeats transmission when aggregation port changes in technology.
A kind of message based on distributed network forwards configuration method, the distributed network includes master control node and extremely
A few distributed node；The described method includes:
When master control node monitors that the member port for forming aggregation port changes, sends and block instruction to all distributions
Node；
Each distributed node sets the member port for itself belonging to the aggregation port to block forwarding state；
If meeting preset condition, master control node sending port configuration information is to all distributed nodes to be turned
It is transported to and sets.
Further, if described meet preset condition, port configuration information is sent to described all points by master control node
Cloth node, comprising:
After the master control node sends blocking instruction to all distributed nodes, start first timer；
When the first timer then, port configuration information is sent to all distributed nodes by master control node.
Further, if described meet preset condition, port configuration information is sent to described all points by master control node
Cloth node, comprising:
After the completion of the distributed node blocks the member port for itself belonging to the aggregation port, sends to block and complete notice
Information is to master control node；
Advertised information is completed according to the blocking received when the master control node and determines that all distributed nodes hinder
After the completion of disconnected, port configuration information is sent to all distributed nodes.
Further, the port configuration information include: aggregation port all member ports and the member port it is corresponding permit
Perhaps forwarding state.
Further, the method, further includes:
All distributed nodes update broadcasting packet forwarding-table item according to the port configuration information.
A kind of message based on distributed network forwards configuration device, and described device is applied to distributed network, and described point
Cloth network includes master control node and at least one distributed node；Described device includes: that instruction sending unit, forwarding state are set
Set unit, configuration information transmission unit；Wherein,
Described instruction transmission unit；When for monitoring that the member port of composition aggregation port changes, sending and blocking instruction；
The forwarding state setting unit, for will belong in each distributed node according to the blocking instruction received
The member port of the aggregation port is set as blocking forwarding state；
The configuration information transmission unit, if sending port configuration information is for meeting preset condition to be forwarded
Configuration.
Further, the configuration information transmission unit is specifically used for sending to block in described instruction transmission unit instructing
Afterwards, start first timer；When the first timer then, sending port configuration information.
Further, the forwarding state setting unit, specifically for being blocked in the member port that will belong to the aggregation port
After the completion, it sends to block and completes advertised information；
The configuration information transmission unit, it is described all specifically for being determined according to the blocking completion advertised information received
After the completion of distributed node blocks, sending port configuration information is so that the distributed node is forwarded configuration.
Further, the port configuration information include: aggregation port all member ports and the member port it is corresponding permit
Perhaps forwarding state.
Further, described device further include: list item updating unit is used for according to the port configuration information, more
The broadcasting packet forwarding-table item of the new distributed node.
The present invention has the beneficial effect that:
Message forwarding configuration method and device provided in an embodiment of the present invention based on distributed network, when master control node is supervised
When measuring member port and changing, first sends and block instruction to all distributed nodes, so that distributed node is because of member port
The member port for first making itself before changing update broadcasting packet forwarding-table item is blocking forwarding state, and then master control node again will
Newest configuration information is sent to each distributed node, so that broadcast report of the distributed node according to the configuration information update itself
It is inconsistent since broadcasting packet turns list item to avoid multiple distributed nodes by intermediate blocking forwarding state for literary forwarding-table item
Caused message repeats transmission problem.
Detailed description of the invention
Fig. 1 is the network topology schematic diagram of distribution switch；
Fig. 2 is the flow diagram of the message forwarding configuration method in the embodiment of the present invention based on distributed network；
Fig. 3 is the network topology schematic diagram of the distribution switch of method shown in application drawing 2；
Fig. 4 is the structural schematic diagram of the message forwarding configuration device in the embodiment of the present invention based on distributed network.
Specific embodiment
Aiming at the problem that message existing in the prior art when aggregation port changes repeats to send, the embodiment of the present invention
The message based on distributed network provided forwards configuration method, applies in distributed network, which includes master
Node and at least one distributed node are controlled, central principle is become when each distributed node carries out polymerization member's variation operation
All member ports are temporarily switched between before dynamic and after changing to block forwarding state, then meet preset condition in each node
Afterwards, then by broadcasting packet forwarding-table item it is configured to final correct state.The process of the method for the present invention is as shown in Fig. 2, execute step
It is rapid as follows:
Step 201, it when master control node monitors that the member port for forming aggregation port changes, sends and blocks instruction to institute
It is distributed formula node；
In distributed network, distributed apparatus may include multiple nodes, and there are two types of main angles for the node in distributed apparatus
Color: master control node (such as management board of the main management equipment or box interchanger stacked), distributed node (i.e. stacking slave or
The line card of box interchanger).The physical port of each node can virtually form an aggregation port, form the physical port of aggregation port
It can be described as member port；When the member port of some aggregation port changes, i.e. the physical port of some node changes.
When the member port of some distributed node in distributed network changes, for example it can be the distributed node
When the link that some port is connected with server breaks down, master control node can then monitor the variation, and then to all points
Cloth node, which is sent, blocks instruction, so that other distributed nodes set itself member port to block forwarding state.
Step 202, each distributed node sets the member port for itself belonging to the aggregation port to block forwarding state；
It is after distributed node receives the blocking instruction of master control node transmission, the member port for itself belonging to the aggregation port is complete
Portion is set as blocking forwarding state.
Step 203, if meeting preset condition, master control node sending port configuration information gives all distributed nodes
To be forwarded configuration.
Here, the port configuration information include: aggregation port all member ports and the member port it is corresponding allow turn
Hair-like state.
Specifically, it is only necessary to guarantee that the member port of distributed node is disposed as after blocking forwarding state, master control node is
Sending port configuration information synchronizes update, is so synchronized with guaranteeing that the broadcasting packet forwarding-table item of each distributed node is realized
It updates, avoids the presence of the phenomenon that updating delay, message is caused repeatedly to send.
Here it is possible to passively wait or active feedback by way of ensure that the member port of distributed node is disposed as hindering
Disconnected forwarding state；Wherein, passive waiting mode refers to: distributed node sets itself member port to after blocking forwarding state,
Start first timer, when the first timer then, the member port that master control node automatically considers all distributed nodes is equal
It has been to block forwarding state, here, first timer typically 5ms；Active feedback mode refers to: distributed node will be certainly
After the completion of the member port that body belongs to the aggregation port blocks, sends to block and complete advertised information to master control node；Master control node is received
After the blocking completion advertised information for collecting all distributed node feedbacks in the distributed network, all distributed nodes are confirmed
Member port be block forwarding state.
It further, can be according to the port configuration information, more after distributed node receives port configuration information
New broadcasting packet forwarding-table item.
Below by taking the network topology of distribution switch shown in Fig. 3 as an example, the above method is specifically described.
As shown in figure 3, server has three links, (distribution is tied with three distributed nodes of distribution switch respectively
Point 1,2,3) aggregation port is established in connection, the distributed node 1 of PC and distribution switch connects, and distributed node 1 is master control knot
Point.Here, node 1,2,3 is illustrated for only having a member port 1,2,3 respectively in a distributed manner.
Assuming that polymerization member port broadcasting packet forwarding-table item capacity is 300.The distributed network topology, which is built, to be configured
The polymerization member port broadcasting packet forwarding-table item of Cheng Hou, each distributed node are as shown in table 3:
Table 3
As the link that distributed node 3 is connected with server LINK DOWN for some reason.The master of distribution switch
It controls node perception to change, issues blocking instruction to three distributed nodes.
Three distributed nodes receive the state being switched to list item after blocking instructs such as the following table 4:
Table 4
Master control node can start first timer.The duration of the first timer depends on needed for normal member variation
Time-consuming can reserve one times of time more on the basis of the time-consuming.It generally can be 5ms.The blocking that can also be fed back according to distributed node
Advertised information is completed, confirms that the member port of all distributed nodes is then master control node sending port after blocking forwarding state
Configuration information is forwarded configuration to all distributed nodes, and the distributed node receives port configuration information
Afterwards, broadcasting packet forwarding-table item, the broadcasting packet forwarding of three distributed nodes can be updated according to the port configuration information
List item is as shown in table 5 below:
Table 5
By above method, before broadcasting packet forwarding-table item is updated to latest configuration, all distributed nodes are all first located
In blocking forwarding state, it is then switched to the state of two member port polls clearance again.Accordingly even when each distributed node without
The completion broadcasting packet forwarding-table item update of method synchronization is also not related, is switched to whole resistances in 3 member port polls clearances
It is disconnected, or all block when being switched to 2 member port polls and letting pass, no matter which list item hit by Hash calculation, all only one
A port can forward.
Message provided in an embodiment of the present invention based on distributed network forwards configuration method, when master control node is monitored into
It when member's mouth changes, first sends and blocks instruction to all distributed nodes, so that distributed node changes more because of member port
The member port for first making itself before new broadcasting packet forwarding-table item is blocking forwarding state, and then master control node again will be newest
Configuration information is sent to each distributed node, so that distributed node is forwarded according to the broadcasting packet of the configuration information update itself
It is inconsistent caused since broadcasting packet turns list item to avoid multiple distributed nodes by intermediate blocking forwarding state for list item
Message repeats transmission problem.
Based on the same inventive concept, the embodiment of the present invention provides a kind of message forwarding configuration dress based on distributed network
It sets, which is applied to distributed network, and the distributed network includes master control node and at least one distributed node；It is described
Device can be set also can be set in distributed node in master control node, the class of each functional unit node according to locating for it
Type plays a role, and specific structure is as shown in Figure 4, comprising: instruction sending unit 41, forwarding state setting unit 42, configuration information
Transmission unit 43；Wherein,
Described instruction transmission unit 41；When for monitoring that the member port of composition aggregation port changes, sending blocking and referring to
It enables；
The forwarding state setting unit 42, for will belong in each distributed node according to the blocking instruction received
It is set as blocking forwarding state in the member port of the aggregation port；
The configuration information transmission unit 43, if sending port configuration information is for meeting preset condition to be turned
It is transported to and sets.
Specifically, it is only necessary to guarantee that the member port of distributed node is disposed as after blocking forwarding state, configuration information hair
43 ability sending port configuration information of unit is sent to synchronize update, so the broadcasting packet forwarding table to guarantee each distributed node
Item realizes synchronized update, avoids the presence of the phenomenon that updating delay, message is caused repeatedly to send.
Here it is possible to passively wait or active feedback by way of ensure that the member port of distributed node is disposed as hindering
Disconnected forwarding state；Wherein, passive waiting mode refers to: the configuration information transmission unit 43, is specifically used for sending out in described instruction
After sending unit 41 to send blocking instruction, start first timer；When the first timer then, sending port configuration information.
Here, first timer typically 5ms；
Active feedback mode refers to: the forwarding state setting unit 42, specifically for by the member of the aggregation port
After the completion of mouth blocks, sends to block and complete advertised information；The configuration information transmission unit 43 is received specifically for basis
After the completion of blocking completion advertised information to determine that all distributed nodes block, sending port configuration information is so that described point
Cloth node is forwarded configuration.
Further, the port configuration information include: aggregation port all member ports and the member port it is corresponding permit
Perhaps forwarding state.
Further, described device further include: list item updating unit 44, for updating according to the port configuration information
The broadcasting packet forwarding-table item of the distributed node.
It should be appreciated that the message provided in an embodiment of the present invention in distributed network forwards configuration device realization principle and mistake
Journey is similar with above-mentioned Fig. 2 and embodiment shown in Fig. 3, and details are not described herein.
Message forwarding configuration method and device provided in an embodiment of the present invention based on distributed network, when master control node is supervised
When measuring member port and changing, first sends and block instruction to all distributed nodes, so that distributed node is because of member port
The member port for first making itself before changing update broadcasting packet forwarding-table item is blocking forwarding state, and then master control node again will
Newest configuration information is sent to each distributed node, so that broadcast report of the distributed node according to the configuration information update itself
It is inconsistent since broadcasting packet turns list item to avoid multiple distributed nodes by intermediate blocking forwarding state for literary forwarding-table item
Caused message repeats transmission problem.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although alternative embodiment of the invention has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So the following claims are intended to be interpreted as include can
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of message based on distributed network forwards configuration method, which is characterized in that the distributed network includes master control
Node and at least one distributed node；The described method includes:
When master control node monitors that the member port for forming aggregation port changes, sends and block instruction to all distributed knots
Point；
Each distributed node sets the member port for itself belonging to the aggregation port to block forwarding state；
If meeting preset condition, master control node sending port configuration information is matched to all distributed nodes with being forwarded
It sets.
2. if the method according to claim 1, wherein described meet preset condition, master control node is by port
Configuration information is sent to all distributed nodes, comprising:
After the master control node sends blocking instruction to all distributed nodes, start first timer；
When the first timer then, port configuration information is sent to all distributed nodes by master control node.
3. if the method according to claim 1, wherein described meet preset condition, master control node is by port
Configuration information is sent to all distributed nodes, comprising:
After the completion of the distributed node blocks the member port for itself belonging to the aggregation port, sends to block and complete advertised information
To master control node；
Advertised information is completed according to the blocking received when the master control node and determines that all distributed nodes have blocked
Port configuration information is sent to all distributed nodes by Cheng Hou.
4. method according to any one of claims 1 to 3, which is characterized in that the port configuration information includes: aggregation port
All member ports and the corresponding permission forwarding state of the member port.
5. according to the method described in claim 4, the method, further includes:
All distributed nodes update broadcasting packet forwarding-table item according to the port configuration information.
6. a kind of message based on distributed network forwards configuration device, which is characterized in that described device is applied to distributed network
Network, the distributed network include master control node and at least one distributed node；Described device include: instruction sending unit,
Forwarding state setting unit, configuration information transmission unit；Wherein,
Described instruction transmission unit；When for monitoring that the member port of composition aggregation port changes, sending and blocking instruction；
The forwarding state setting unit, for will belong in each distributed node described according to the blocking instruction received
The member port of aggregation port is set as blocking forwarding state；
The configuration information transmission unit, if sending port configuration information is for meeting preset condition to be forwarded configuration.
7. according to the method described in claim 6, it is characterized in that, the configuration information transmission unit, is specifically used for described
After instruction sending unit sends blocking instruction, start first timer；When the first timer then, sending port match confidence
Breath.
8. according to the method described in claim 6, it is characterized in that, the forwarding state setting unit, is specifically used for belong to
After the completion of the member port of the aggregation port blocks, sends to block and complete advertised information；
The configuration information transmission unit determines described be distributed specifically for completing advertised information according to the blocking received
After the completion of formula node blocks, sending port configuration information is so that the distributed node is forwarded configuration.
9. according to device as claimed in claim 6 to 8, which is characterized in that the port configuration information includes: aggregation port
All member ports and the corresponding permission forwarding state of the member port.
10. device according to claim 9, which is characterized in that described device further include: list item updating unit, for pressing
According to the port configuration information, the broadcasting packet forwarding-table item of the distributed node is updated.
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Application publication date: 20181211 |