CN106789663A - A kind of message forwarding method and device - Google Patents
A kind of message forwarding method and device Download PDFInfo
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- CN106789663A CN106789663A CN201610102259.6A CN201610102259A CN106789663A CN 106789663 A CN106789663 A CN 106789663A CN 201610102259 A CN201610102259 A CN 201610102259A CN 106789663 A CN106789663 A CN 106789663A
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- stack equipment
- message
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- stacking
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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
- H04L45/58—Association of routers
- H04L45/583—Stackable routers
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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
- H04L45/32—Flooding
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A kind of message forwarding method and device are the embodiment of the invention provides, the first stack equipment is applied to, methods described includes:After receiving the first isolation message of the second stack equipment transmission, stacking topology is updated;Wherein, the stacking topology after renewal does not include the second stack equipment;The first isolation message is that second stack equipment to get restart after software to be upgraded and sends before;According to the stacking topology after the renewal, the first stack equipment to the forward-path of other stack equipments in addition to the second stack equipment is calculated;Forward table is updated according to the forward-path, and is E-Packeted according to the forward table after renewal.In the embodiment of the present invention, after first stack equipment receives the isolation message of the second stack equipment transmission, second stack equipment can be deleted from stacking topology, therefore, first stack equipment is when the message to receiving is forwarded, the second stack equipment will not be forwarded the message to such that it is able to reduce the packet loss in message repeating process.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of message forwarding method and device.
Background technology
ISSU (In-Service Software Upgrade, non-interrupting service upgrading) function is that one kind can be protected
The card upgrading mode that business is not interrupted or the break period is shorter during device upgrade.For example, stacking system
Any appliance in system can use ISSU functions, realize the upgrading of the equipment.Specifically, the equipment can
To be restarted, and in restarting process loading upgrading software come complete upgrading.
In for any stack equipment escalation process in pile system, guarantee business can not be interrupted, stacking
The service message that system is carried occurs without packet loss, it is necessary to take stacking aggregated links Zero packet loss technique.
Shown in system architecture such as Fig. 1 (a) of existing stacking aggregated links Zero packet loss technique, pile system can
With including multiple stack equipments:Stack equipment 1, stack equipment 2 and stack equipment 3;Also, opposite end
The port trunking being connected with each stack equipment in pile system in equipment, constitutes aggregation group.Set with stacking
The process of stack equipment upgrading is illustrated as a example by standby 2.When stack equipment 2 completes upgrading software download, restart
Before coming into force, the first message notifying opposite equip. 1 and opposite equip. 2 can be sent, by correspondence stacking in aggregation group
The member port of equipment 2 is deleted.As shown in dotted line in Fig. 1 (b), when opposite equip. 1 and opposite equip. 2
After the member port of correspondence stack equipment 2 is deleted, the member port will not again share aggregation group traffic messages.
Afterwards, stack equipment 2 starts to restart, loading upgrading software.After the completion of restarting, stack equipment 2
The 3rd message notifying opposite equip. 1 and opposite equip. 2 are sent, the member port of correspondence stack equipment 2 is added
Enter aggregation group, the member port can undertake the flow forwarding of aggregation group afterwards.Because stacking sets in pile system
During standby upgrading, opposite equip. can by should the member port of stack equipment delete, opposite equip. will be by will
Flow switch to correspondence other stack equipments member port, zero packet loss during upgrading so as to realize stack equipment.
As shown in Fig. 2 (a), between opposite equip. when message forwarding is carried out, such as message forwarding path is right
End equipment 1 arrives opposite equip. 2.Opposite equip. 1 carries out aggregation group load balancing, and message is stacked from correspondence
The member port of equipment 3 sends;After stack equipment 3 receives message, determine that the message needs to be forwarded to
Opposite equip. 2, stack equipment 3 is by Hash calculation, if the path calculated is by stack equipment 1
Opposite equip. 2 is forwarded to, then as the path as shown in Fig. 2 (a), stack equipment 3 stacks message by it
Mouth is sent to stack equipment 2, and message is sent to stack equipment 1 by stack equipment 2 by its stacking opening again, then
Opposite equip. 2 is forwarded to by stack equipment 1.
But as shown in Fig. 2 (b), stack equipment 2 is when being upgraded, it is impossible to carry out message forwarding.Cause
This, when stack equipment 3 is forwarded to the message that it is received, and forward-path is needed by stack equipment
When 2, can be by the message dropping.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of message forwarding method and device, to reduce message forwarding
During packet loss.Concrete technical scheme is as follows:
In a first aspect, the embodiment of the invention provides a kind of message forwarding method, methods described is applied to first
Stack equipment, methods described includes:
After receiving the first isolation message of the second stack equipment transmission, stacking topology is updated;Wherein, update
Stacking topology afterwards does not include second stack equipment;The first isolation message is that second stacking sets
It is standby get software to be upgraded after restart what is sent before;
According to the stacking topology after the renewal, the first stack equipment is calculated in addition to the second stack equipment
The forward-path of other stack equipments;
Forward table is updated according to the forward-path, and is E-Packeted according to the forward table after renewal.
Second aspect, the embodiment of the invention provides a kind of apparatus for forwarding message, and described device is applied to first
Stack equipment, described device includes:
First update module, for after the first isolation message for receiving the transmission of the second stack equipment, updating heap
Folded topology;Wherein, the stacking topology after renewal does not include second stack equipment;First isolation disappears
Breath is that second stack equipment to get restart after software to be upgraded and sends before;
First computing module, for according to the stacking topology after the renewal, calculating the first stack equipment to removing
The forward-path of other stack equipments outside the second stack equipment;
Performing module, for updating forward table according to the forward-path, and turns according to the forward table after renewal
Transmit messages text.
A kind of message forwarding method and device are the embodiment of the invention provides, methods described is applied to the first stacking
Equipment, methods described includes:After receiving the first isolation message of the second stack equipment transmission, stacking is updated
Topology;Wherein, the stacking topology after renewal does not include second stack equipment;The first isolation message
Second stack equipment to get restart after software to be upgraded and sends before;After the renewal
Stacking topology, calculates the first stack equipment to the forwarding road of other stack equipments in addition to the second stack equipment
Footpath;Forward table is updated according to the forward-path, and is E-Packeted according to the forward table after renewal.The present invention
In embodiment, the first stack equipment is received will restart the isolation message that the second stack equipment of upgrading sends
Afterwards, the second stack equipment can be deleted from stacking topology, and according to the heap deleted after the second stack equipment
Folded topology updates forward table, therefore, the first stack equipment, will not when the message to receiving is forwarded
Forward the message to the second stack equipment such that it is able to reduce the packet loss in message repeating process.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
Example or the accompanying drawing to be used needed for description of the prior art are briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 (a), Fig. 1 (b) are the system architecture of existing stacking aggregated links Zero packet loss technique;
Fig. 2 (a), Fig. 2 (b) are existing stack equipment escalation process schematic diagram;
Fig. 3 is a kind of flow chart of message forwarding method provided in an embodiment of the present invention;
Fig. 4 is a kind of flow chart of stack equipment upgrade method provided in an embodiment of the present invention;
Fig. 5 is a kind of structural representation of apparatus for forwarding message provided in an embodiment of the present invention;
Fig. 6 is a kind of another structural representation of apparatus for forwarding message provided in an embodiment of the present invention;
Fig. 7 (a) -7 (c) is the stack equipment escalation process schematic diagram of the embodiment of the present invention.
Specific embodiment
In order to reduce the packet loss in message repeating process, a kind of message forwarding side is the embodiment of the invention provides
Method and device.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment
Can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to reduce the packet loss in message repeating process, a kind of message forwarding side is the embodiment of the invention provides
Method, is applied to the first stack equipment, as shown in figure 3, the process is comprised the following steps:
S301, after receiving the first isolation message of the second stack equipment transmission, updates stacking topology;Wherein,
Stacking topology after renewal does not include second stack equipment;The first isolation message is second heap
Stacking device restarts what is sent before after getting software to be upgraded.
In actual applications, stack equipment can carry out software upgrading.Specifically, stack equipment can be first
Software to be upgraded is obtained, is then restarted, software to be upgraded is loaded in restarting process, so as to complete soft
Part is upgraded.
It is appreciated that during stack equipment restarts upgrading, the upgrading stack equipment can not be to message
Forwarded.
Therefore, in embodiments of the present invention, in order to reduce the packet loss in message repeating process, when the second heap
Stacking device is got before restart after software to be upgraded, and it can send the first isolation and disappear to the first stack equipment
Breath, to inform the first stack equipment, its own will carry out restarting upgrading.For example, above-mentioned first isolation message
In can include the second stack equipment identification information and its whether the status information that will be restarted.
After first stack equipment receives the first isolation message of the second stack equipment transmission, can be according to first
Isolation message obtains the status information that the second stack equipment will be restarted.Also, turn to reduce message
Packet loss during hair, the message that will not receive is transmitted to the second stack equipment, and the first stack equipment can
To update stacking topology, wherein, do not include the second stack equipment in the stacking topology after renewal.
It should be noted that in the embodiment of the present invention, above-mentioned second stack equipment can be in pile system
Any stack equipment.That is, before any one stack equipment in pile system restarts upgrading, all can
First is sent to the first stack equipment and isolate message, so that each the stack equipment liter in ensureing pile system
During level, the first stack equipment can all update stacking topology.
S302, according to the stacking topology after the renewal, calculates the first stack equipment to except the second stack equipment
Outside other stack equipments forward-path.
After first stack equipment updates stacking topology, it can be topological according further to the stacking after renewal,
The first stack equipment to the forward-path of other stack equipments in addition to the second stack equipment is calculated, will be connect
When the message for receiving is transmitted to other stack equipments, without the second stack equipment.
S303, updates forward table, and E-Packet according to the forward table after renewal according to the forward-path.
In actual applications, any one stack equipment is forwarded to other stack equipments in the message for being received
When, the forward table that can be preserved according to itself is forwarded to the message for receiving.Specifically, stack equipment
After it is determined that message needs to be forwarded from which stack equipment (referred to as purpose stack equipment), can be according to purpose
The identification information of stack equipment, searches in forward table and obtains corresponding with the identification information of the purpose stack equipment
Go out port numbers, and the message is forwarded from corresponding exit port.
Therefore, in embodiments of the present invention, be calculated the first stack equipment to except the second stack equipment it
After the forward-path of other outer stack equipments, the first stack equipment can be according to the forwarding road being calculated
Footpath updates forward table, and is E-Packeted according to the forward table after renewal.
Specifically, the first stack equipment can according to the forward-path being calculated, update in forward table it is each its
The corresponding go out port numbers of its stack equipment.
Message forwarding method provided in an embodiment of the present invention, the first stack equipment is received will restart upgrading
After the isolation message that second stack equipment sends, the second stack equipment can be deleted from stacking topology, and
Stacking topology according to deleting after the second stack equipment updates forward table, therefore, the first stack equipment is in docking
When the message for receiving is forwarded, the second stack equipment will not be forwarded the message to such that it is able to reduce message
Packet loss in repeating process.
In a kind of implementation of the embodiment of the present invention, when the second stack equipment sends to the first stack equipment
After first isolation message, the second stack equipment can start to restart upgrading after scheduled duration is waited.It is above-mentioned
Scheduled duration can be to ensure that the first stack equipment can complete to update the duration of forward table, for example, can be 2
Second, 3 seconds, 5 seconds etc..
In another implementation, after more the first stack equipment of accurate guarantee completes to update forward table
Second stack equipment just starts to restart upgrading, and the first stack equipment, can be to second after forward table is updated
Stack equipment sends first and isolates completion message, so that the second stack equipment is restarted and loads software to be upgraded.
Further, in embodiments of the present invention, the first stack equipment can be topological according to the stacking before renewal,
The first stack equipment to the forward-path of the second stack equipment is calculated, and according to the first stack equipment for calculating
Forward-path to the second stack equipment updates forward table.
Further, in actual applications, when each stack equipment all normally runs, stacking topology is generally
It is ring topology.Therefore, may ceaselessly be forwarded always for multicast message, that is, be likely to result in report
Text forwarding storm.In order to prevent message from forwarding storm, corresponding source mistake is preserved in each stack equipment
Filter table, defines in the source filter table of any one stack equipment and is filtered the message from which equipment,
It is blocked, accordingly it is possible to prevent message forwarding storm.
In embodiments of the present invention, after the first stack equipment deletes the second stack equipment from stacking topology,
Stacking topology after renewal has not been ring topology, therefore, be not in the problem of message forwarding storm.
Therefore, in embodiments of the present invention, the first stack equipment can be deleted after stacking topology is updated
The source filter table for preventing message forwarding storm for itself preserving.
Further, stack equipment 1 can also upgrade to itself, refer to Fig. 4, the embodiment of the present invention
The stack equipment upgrade method of offer can include:
S401, before restarting after getting software to be upgraded, to stacking outside opposite equip. send deletion disappear
Breath, to cause that the opposite equip. deletes the member port of correspondence first stack equipment in aggregation group.
In actual applications, the port trunking being connected with each stack equipment in pile system on opposite equip.,
Constitute aggregation group.When opposite equip. sends message to pile system, load balancing is carried out in aggregation group, that is, led to
Overload Sharing Algorithm, selects exit port from aggregation group, by the exit port, forwards the packet to stacking
The stack equipment being connected with the exit port in system.
It is appreciated that during the first stack equipment restarts upgrading, it can not be forwarded to message.
In this case, if the message that opposite equip. will be received is transmitted to the first stack equipment, it will cause packet loss.
Therefore, in embodiments of the present invention, in order to reduce message forwarding in the first stack equipment escalation process
Packet loss, before restarting after the first stack equipment gets software to be upgraded, can to stacking outside opposite end
Equipment sends deletes message, to cause that opposite equip. deletes the member end of the first stack equipment of correspondence in aggregation group
Mouthful.
Before the first stack equipment restarts upgrading, it is sent by the opposite equip. outside to stacking and deletes message,
So that opposite equip. deletes the member port of the first stack equipment of correspondence in aggregation group, so that opposite equip. connects
The message from the member port forwarding of the first stack equipment of correspondence will not will would not be also somebody's turn to do when receiving message
Message is transmitted to the first stack equipment, so as to packet loss will not be caused.
S402, sends second and isolates message to the 3rd stack equipment, to cause the 3rd stack equipment more
After new complete forward table, send second to first stack equipment and isolate completion message.
Message is deleted when the first stack equipment sends to opposite equip., so that right in opposite equip. deletion aggregation group
After answering the member port of the first stack equipment, it is ensured that opposite equip. does not forward the message to the first stacking and sets
It is standby.But, in actual applications, other stack equipments in pile system when being forwarded to message,
It is likely to may require that the message is forwarded by the first stack equipment.In this case, due to the first heap
Stacking device is when being upgraded, it is impossible to carry out message forwarding, therefore, this occurs by the first stack equipment
The message dropping of forwarding, causes substantial amounts of packet loss.
Therefore, in embodiments of the present invention, the first stack equipment, can also be to the 3rd before upgrading is restarted
Stack equipment sends second and isolates message, to cause the 3rd stack equipment after forward table has been updated, to first
Stack equipment sends second and isolates completion message.
It should be noted that in the embodiment of the present invention, above-mentioned 3rd stack equipment can be in pile system
Any stack equipment.That is, the first stack equipment is before upgrading is restarted, can be to every in pile system
One stack equipment sends second and isolates message, so as to each stack equipment in pile system updates turn
Deliver, and second is sent to the first stack equipment and isolate completion message.
Specifically, the first stack equipment restart upgrading before, can to the 3rd stack equipment send second every
From message, after the 3rd stack equipment receives the second isolation message of the first stack equipment transmission, can update
Stacking topology, calculates itself to the path of other stack equipments in addition to the first stack equipment, and according to meter
The routing update forward table for obtaining.Also, after the 3rd stack equipment has updated forward table, can be to first
Stack equipment sends second and isolates completion message, so that the first stack equipment can start to restart upgrading.
It should be noted that above-mentioned steps S401 and step S402 can be performed simultaneously, can also be in sequence
Perform, such as first carry out step S401, then perform step S402, or, step S402 is first carried out, then perform
Step S401, the embodiment of the present invention is without limitation.
S403, after the second isolation completion message is received, restarts and loads the software to be upgraded.
After the first stack equipment receives the second isolation completion message, may indicate that the 3rd stack equipment is complete
Into the renewal of forward table, that is to say, that the 3rd stack equipment will not forward the message to the first stack equipment,
In this case, the first stack equipment can restart and load software to be upgraded, so as to complete upgrading.
Stack equipment upgrade method provided in an embodiment of the present invention, the first stack equipment before upgrading restart,
Can to stacking outside opposite equip. send delete message so that opposite equip. delete aggregation group in correspondence the first heap
The member port of stacking device, and the second isolation message is sent to the 3rd stack equipment, so that the 3rd stack equipment
After forward table has been updated, send second to the first stack equipment and isolate completion message, the first stack equipment is
Start to restart upgrading, therefore, during the first stack equipment restarts upgrading, message is not had and is entered by itself
Row forwarding, so as to reduce the packet loss of message forwarding in stack equipment escalation process.
Further, in embodiments of the present invention, after the completion of upgrading software loading, the first stack equipment
Can be sent to opposite equip. and add message, to cause opposite equip. by the member end of the first stack equipment of correspondence
Mouth adds aggregation group.
After the member port of the first stack equipment of correspondence is added aggregation group by opposite equip., the first stack equipment is just
The flow forwarding of aggregation group can be again undertaken, the flow transfer capability of aggregation group is lifted.
Further, in embodiments of the present invention, after the second stack equipment completes software upgrading, can again
It is added in pile system, the first stack equipment can be found that the addition of the second stack equipment this pile system,
Then according to the stacking topology before renewal, the first stack equipment to the forward-path of other stack equipments is calculated,
And forward table is updated according to the forward-path of the first stack equipment for calculating to other stack equipments.Wherein,
It was found that stack equipment adds the process of pile system same as the prior art, will not be repeated here.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides corresponding device embodiment.
Fig. 5 is a kind of apparatus for forwarding message provided in an embodiment of the present invention, and described device is applied to the first stacking
Equipment, described device includes:
First update module 510, after for receiving the transmission of the second stack equipment first isolates message, more
New stacking topology;Wherein, the stacking topology after renewal does not include second stack equipment;Described first every
It is that second stack equipment to get restart after software to be upgraded and sends before from message;
First computing module 520, for according to the stacking topology after the renewal, calculating the first stack equipment
To the forward-path of other stack equipments in addition to the second stack equipment;
Performing module 530, for updating forward table according to the forward-path, and according to the forwarding after renewal
Table E-Packets.
Apparatus for forwarding message provided in an embodiment of the present invention, the first stack equipment is received will restart upgrading
After the isolation message that second stack equipment sends, the second stack equipment can be deleted from stacking topology, and
Stacking topology according to deleting after the second stack equipment updates forward table, therefore, the first stack equipment is in docking
When the message for receiving is forwarded, the second stack equipment will not be forwarded the message to such that it is able to reduce message
Packet loss in repeating process.
Further, described device also includes:
First sending module (not shown), for according to the forward-path update forward table after,
First is sent to second stack equipment and isolate completion message, so that second stack equipment is restarted and added
Carry the software to be upgraded.
Further, described device also includes:
Second computing module (not shown), for according to the stacking topology before renewal, calculating the first heap
Forward-path of the stacking device to the second stack equipment;
Second update module (not shown), for according to the first stack equipment to the second heap for calculating
The forward-path of stacking device updates forward table.
Further, described device also includes:
Removing module (not shown), for after stacking topology is updated, deleting the use of itself preservation
In the source filter table for preventing message from forwarding storm.
Further, as shown in fig. 6, apparatus for forwarding message provided in an embodiment of the present invention, can also include:
Second sending module 610, for before restarting after getting software to be upgraded, to stacking outside it is right
End equipment sends deletes message, to cause that correspondence first stacking sets during the opposite equip. deletes aggregation group
Standby member port;
3rd sending module 620, message is isolated for sending second to the 3rd stack equipment, described to cause
3rd stack equipment sends second and isolates completion message after forward table has been updated, to first stack equipment;
Upgraded module 630, for after the second isolation completion message is received, restarting and loading and be described
Software to be upgraded.
Further, described device also includes:
Module (not shown) is added, for after the completion of upgrading software loading, to the opposite equip.
Send and add message, to cause that the opposite equip. adds the member port of correspondence first stack equipment
Aggregation group.
The stack equipment upgrade method that the present invention is provided is carried out in detail with reference to a specific embodiment
Explanation.
As shown in Fig. 7 (a), the pile system in the present embodiment can include multiple stack equipments:Stacking sets
Standby 1, stack equipment 2, stack equipment 3, stack equipment 4 and stack equipment 5, constitute annular stacking;
Also, the port trunking that opposite equip. 1, opposite equip. 2 are connected with each stack equipment in pile system,
Constitute aggregation group.
The process of the stack equipment upgrading of the embodiment of the present invention is illustrated by taking stack equipment 2 as an example.When stacking sets
Standby 2 complete software download to be upgraded, restart before coming into force, and can be sent to opposite equip. 1 and opposite equip. 2
Message is deleted, after opposite equip. 1 and opposite equip. 2 receive the deletion message of the transmission of stack equipment 2, can
To delete the member port of correspondence stack equipment 2 in aggregation group.As shown in dotted line in Fig. 7 (b), work as opposite end
After equipment 1 and opposite equip. 2 delete the member port of correspondence stack equipment 2 in aggregation group, the member port
Aggregation group traffic messages will not again be shared.
Also, stack equipment 2 can be to the stack equipment of other in pile system (stack equipment 1, stacking
Equipment 3, stack equipment 4 and stack equipment 5) isolation message is sent, with stack equipment 3 in the present embodiment
Receive isolation message as a example by illustrate, when stack equipment 3 receive isolation message after, heap can be updated
Folded topology, shown in such as Fig. 7 (c), to delete the stacking topoligical equivalence figure after stack equipment 2.Then, root
Itself is calculated to the path of other stack equipments in addition to stack equipment 2, root according to the stacking topology after renewal
Itself is calculated to the path of stack equipment 2 according to the topology before renewal, and is turned according to the routing update being calculated
Deliver, and E-Packeted according to the forward table after renewal.Also, after stack equipment 3 has updated forward table,
Isolation completion message, other institutes in stack equipment 2 receives pile system can be sent to stack equipment 2
After having the isolation completion message that stack equipment sends, start to restart upgrading.
Afterwards, stack equipment 2 starts to restart, loading upgrading software.After the completion of restarting, stack equipment 2
Send and add message to opposite equip. 1 and opposite equip. 2, opposite equip. 1 and opposite equip. 2 will correspondence heaps
The member port of stacking device 2 adds aggregation group, and the member port can undertake the flow forwarding of aggregation group afterwards.
When other stack equipments (such as stack equipment 3) in pile system find that stack equipment 2 rejoins heap
After in folded system, itself is calculated to the path of other stack equipments according to the topology before renewal, and according to calculating
The routing update forward table for obtaining, E-Packets according to the forward table after renewal.
It should be noted that herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these
There is any this actual relation or order between entity or operation.And, term " including ", " bag
Containing " or any other variant thereof is intended to cover non-exclusive inclusion, so that including a series of key elements
Process, method, article or equipment not only include those key elements, but also including being not expressly set out
Other key elements, or it is this process, method, article or the intrinsic key element of equipment also to include.
In the case of there is no more limitations, the key element limited by sentence "including a ...", it is not excluded that including
Also there is other identical element in the process of the key element, method, article or equipment.
Each embodiment in this specification is described by the way of correlation, identical phase between each embodiment
As part mutually referring to what each embodiment was stressed is the difference with other embodiment.
For especially for system embodiment, because it is substantially similar to embodiment of the method, so the comparing of description
Simply, the relevent part can refer to the partial explaination of embodiments of method.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the scope of the present invention.
All any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in
In protection scope of the present invention.
Claims (12)
1. a kind of message forwarding method, it is characterised in that methods described is applied to the first stack equipment, institute
The method of stating includes:
After receiving the first isolation message of the second stack equipment transmission, stacking topology is updated;Wherein, update
Stacking topology afterwards does not include second stack equipment;The first isolation message is that second stacking sets
It is standby get software to be upgraded after restart what is sent before;
According to the stacking topology after the renewal, the first stack equipment is calculated in addition to the second stack equipment
The forward-path of other stack equipments;
Forward table is updated according to the forward-path, and is E-Packeted according to the forward table after renewal.
2. method according to claim 1, it is characterised in that turn being updated according to the forward-path
After delivering, methods described also includes:
First is sent to second stack equipment and isolate completion message, so that second stack equipment is restarted
And load the software to be upgraded.
3. method according to claim 1, it is characterised in that methods described also includes:
According to the stacking topology before renewal, the forward-path of the first stack equipment to the second stack equipment is calculated;
Forward-path according to the first stack equipment for calculating to the second stack equipment updates forward table.
4. method according to claim 1, it is characterised in that described after stacking topology is updated
Method also includes:
Delete the source filter table for preventing message forwarding storm for itself preserving.
5. according to any described methods of claim 1-4, it is characterised in that methods described also includes:
Before restarting after getting software to be upgraded, to stacking outside opposite equip. send delete message, with
So that the opposite equip. deletes the member port of correspondence first stack equipment in aggregation group;And
Second is sent to the 3rd stack equipment and isolate message, to cause that the 3rd stack equipment is updating turn
After delivering, send second to first stack equipment and isolate completion message;
After the second isolation completion message is received, the software to be upgraded is restarted and loaded.
6. method according to claim 5, it is characterised in that methods described also includes:
After the completion of upgrading software loading, sent to the opposite equip. and add message, to cause the opposite end
The member port of correspondence first stack equipment is added aggregation group by equipment.
7. a kind of apparatus for forwarding message, it is characterised in that described device is applied to the first stack equipment, institute
Stating device includes:
First update module, for after the first isolation message for receiving the transmission of the second stack equipment, updating heap
Folded topology;Wherein, the stacking topology after renewal does not include second stack equipment;First isolation disappears
Breath is that second stack equipment to get restart after software to be upgraded and sends before;
First computing module, for according to the stacking topology after the renewal, calculating the first stack equipment to removing
The forward-path of other stack equipments outside the second stack equipment;
Performing module, for updating forward table according to the forward-path, and turns according to the forward table after renewal
Transmit messages text.
8. device according to claim 7, it is characterised in that described device also includes:
First sending module, for after forward table is updated according to the forward-path, to second heap
Stacking device sends first and isolates completion message, so that second stack equipment is restarted and loaded described to be upgraded
Software.
9. device according to claim 7, it is characterised in that described device also includes:
Second computing module, for according to the stacking topology before renewal, calculating the first stack equipment to the second heap
The forward-path of stacking device;
Second update module, for the forwarding road according to the first stack equipment to the second stack equipment for calculating
Footpath updates forward table.
10. device according to claim 7, it is characterised in that described device also includes:
Removing module, for update stacking topology after, delete itself preservation for preventing message from forwarding
The source filter table of storm.
11. according to any described devices of claim 7-10, it is characterised in that described device also includes:
Second sending module, for before restarting after getting software to be upgraded, to stacking outside opposite end set
Preparation send deletion message, to cause that the opposite equip. corresponds to first stack equipment in deleting aggregation group
Member port;And
3rd sending module, message is isolated for sending second to the 3rd stack equipment, to cause the described 3rd
Stack equipment sends second and isolates completion message after forward table has been updated, to first stack equipment;
Upgraded module, described waits to rise for after the second isolation completion message is received, restarting and loading
Level software.
12. devices according to claim 11, it is characterised in that described device also includes:
Module is added, for after the completion of upgrading software loading, being sent to the opposite equip. and adding message,
To cause that the member port of correspondence first stack equipment is added aggregation group by the opposite equip..
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