CN103516620B - The moving method of a kind of VM, system and server - Google Patents
The moving method of a kind of VM, system and server Download PDFInfo
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Abstract
The invention discloses moving method, system and the server of a kind of VM, method includes: centralized servers determines CVLAN that on the Bridge Link of RB place, source, VM is used the first configuration variation information before and after VM migration, further, centralized servers determines CVLAN that on the Bridge Link of purpose RB place, VM is used the second configuration variation information before and after VM migration；Centralized servers determines the corresponding beta pruning tree of the used CVLAN of VM according to described first configuration variation information and the second configuration variation information；Described beta pruning tree is sent to each RB by the network that centralized servers consists of the control port being provided by RB.The present invention can solve the problem that due to the data surface message packet loss problem in the delayed TRILL network causing of distribution tree beta pruning.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of virtual machine (VM, Virtual Machine) moving method,
System and server.
Background technology
Multi-link transparent interconnection (TRILL, Transparent Interconnection of Lots of Links) is
A kind of two layers of interconnection technique, are mainly used to overcome Spanning-Tree Protocol (STP, Spanning Tree Protocol) in scale
Not enough.The network equipment running TRILL protocol is referred to as routing bridge (RB, Routing Bridge).
In common TRILL protocol, be stored with in each RB the topological structure constructing according to whole TRILL network, should
Topological structure is referred to as distribution tree.Each RB in TRILL network is by Link State bag (LSP, the link state of oneself
Packet) it is flooded in TRILL network, described LSP carries user VLAN (CVLAN, the Customer of this RB
Virtual Local Area Network) state, other RB in TRILL network are according to the CVLAN in the LSP flooding
Distribution tree beta pruning to self storage, obtains this CVLAN corresponding beta pruning tree.Every in other RB in described TRILL network
One RB respectively obtains this CVLAN corresponding according to the CVLAN in the LSP flooding to the distribution tree beta pruning self storing
Beta pruning tree.Obtain the RB of this CVLAN corresponding beta pruning tree according to this CVLAN corresponding beta pruning tree, forward this CVLAN corresponding
CVLAN message.CVLAN message refers to: VLAN tag is the message of CVLAN.
Generally, the migration of VM is frequent in a network, with the migration of VM, in each RB CVLAN state also with
Change.Therefore, the RB that CVLAN state changes needs to be flooded to the CVLAN state of self in network by LSP
Other RB, other RB described accordingly be distributed tree beta pruning, obtain the corresponding new beta pruning tree of CVLAN, wherein, CVLAN
State refers mainly on each RB, the upper corresponding CVLAN of Bridge-link configures and configuration variation situation.Owing to RB is by self
The speed that flooded by LSP of CVLAN state a lot of slowly relative to the speed that the data surface messages such as CVLAN message forward, described
Data surface message refers to transmit the message of user data, therefore, if the CVLAN state of oneself cannot be flooded to net by RB in time
Other RB in network, then other RB described also just cannot obtain CVLAN beta pruning tree accurately in time to distribution tree beta pruning.By
Inaccurate in CVLAN corresponding beta pruning tree, then when this CVLAN corresponding CVLAN message is forwarded by other RB described, can
Can cannot be forwarded to correct RB, cause the loss of CVLAN message.
In sum, due in TRILL network LSP flood the impact of speed, some RB may be made in network to distribution
Hedge clipper branch occurs delayed, and then causes the problem that TRILL network there will be the data surface message packet losses such as CVLAN message.
Content of the invention
In view of this, the technical problem to be solved in the present invention is to provide the moving method of a kind of VM, system and server,
Can solve the problem that due to the data surface message packet loss problem in the delayed TRILL network causing of distribution tree beta pruning.
To this end, the present invention adopts the following technical scheme that
The embodiment of the present invention provides the moving method of a kind of virtual machine VM, comprising:
Centralized servers determines user's virtual local area that on the bridge link Bridge Link of source route bridge RB place, VM is used
First configuration variation information before and after VM migration for the net CVLAN, and, centralized servers determines purpose RB place Bridge
Second configuration variation information before and after VM migration for the CVLAN that the upper VM of Link is used；
Centralized servers determines the used CVLAN of VM according to described first configuration variation information and the second configuration variation information
Corresponding beta pruning tree；
Described beta pruning tree is sent to each RB by the network that centralized servers consists of the control port being provided by RB.
The embodiment of the present invention also provides the migratory system of a kind of VM, comprising:
First determining unit, for determining the user that on the bridge link Bridge Link of source route bridge RB place, VM is used
First configuration variation information before and after VM migration for the VLAN CVLAN, and, determine purpose RB place Bridge Link
Second configuration variation information before and after VM migration for the CVLAN that upper VM is used；
According to described first configuration variation information and the second configuration variation information, second determining unit, for determining that VM is made
With CVLAN corresponding beta pruning tree；
Transmitting element, described beta pruning tree is sent to each by the network forming for the control port by being provided by RB
RB。
The present invention is directly determined the corresponding beta pruning tree of the used CVLAN of VM by centralized servers, by provided by RB
Beta pruning tree is sent to each RB by the network of control port composition, it is not necessary to is flooded by LSP and transmits CVLAN state, thus RB
Obtaining time of beta pruning tree is no longer influenced by LSP and floods the HELLO message timer of middle RB and LSP floods the shadow of timer timing
Ringing, shortening RB and obtain the time of beta pruning tree, solve due to beta pruning is delayed, the data surface message appearance in TRILL network
The problem of packet loss.
Brief description
Fig. 1 a is a kind of schematic network structure under the many RB of the embodiment of the present invention access；
Fig. 1 is the moving method schematic flow sheet of the first VM of the embodiment of the present invention；
Fig. 2 is the moving method schematic flow sheet of embodiment of the present invention the second VM；
Fig. 2 a is the schematic network structure under the many RB of the embodiment of the present invention access；
Fig. 3 is embodiment of the present invention distribution tree structural representation；
Fig. 4 is the distribution tree structural representation after embodiment of the present invention VM migrates；
Fig. 5 is the moving method schematic flow sheet of the third VM of the embodiment of the present invention；
Fig. 6 is the migration system architecture schematic diagram of a kind of VM of the embodiment of the present invention；
Fig. 7 is that the one of the embodiment of the present invention the first determining unit realizes structural representation；
Fig. 8 is the migration system architecture schematic diagram of the another kind of VM of the embodiment of the present invention.
Detailed description of the invention
In common technology, after the CVLAN information that other RB that certain RB receives flood, need waiting timer
After Chao Shi, just the CVLAN information that oneself CVLAN information and other RB receiving flood is sent out to the neighbours of oneself
Send, therefore, when CVLAN changes, RB by the CVLAN state of self by LSP flood diffusion the whole network speed relative to
The speed that the data surface messages such as CVLAN message forward is a lot of slowly.
For example, VM is linked into multiple RB by bridge (Bridge), in such as Fig. 1 a by Bridge be linked into RB1, RB2 and
RB3.If VM migrates out from RB1, RB2 and RB3, purpose RB does not limits here, then, CVLAN change is passed through by each RB
What LSP flooded concretely comprises the following steps:
(1) VM migrates out from RB1, RB2 and RB3；
(2) RB1, RB2, RB3 meet the condition deleting the CVLAN that VM is used, and delete the VM institute of configuration in self respectively
The CVLAN using；
(3), during the HELLO timer expiry of the upper setting of RB1, RB2, RB3, RB1, RB2, RB3 use HELLO message respectively
Informing neighbours RB4 and RB5, the CVLAN of oneself there occurs change；
The default interval of HELLO timer is usually 30 seconds, and some RB can receive some neighbour in 30 seconds and send
HELLO message be it is believed that this neighbor state is normal.Each RB typically can send three HELLO message in 30 seconds, also
Be exactly to send once for 10 seconds, be advertised to the neighbours of oneself, it is ensured that the state of oneself other neighbours it appear that normal.CVLAN
Being a TLV field in HELLO message, therefore, the diffusion velocity of CVLAN is just affected by HELLO timer.
(4) RB5 receives the HELLO message that RB2 and RB3 sends, and learns that the CVLAN of neighbours there occurs change, changes oneself
LSP data storehouse；When the LSP timer expiry arranging on RB5, RB5 sends the LSP updating to all of neighbours of RB5.RB4
Process similar with RB5, do not repeat here.
RB have received the HELLO message of all neighbours, obtains CVLAN, and during LSP timer expiry, RB can be sent out by LSP
Giving all other neighbours, each RB in so whole network just can know that in network to need which forwards on each RB
The message of CVLAN, each RB could carry out beta pruning to distribution tree accordingly, obtains correct beta pruning tree.It is to say, except
The time that HELLO timer takies, in LSP diffusion, LSP timer also can affect the time that RB obtains beta pruning tree.
In sum, the setting of HELLO timer and LSP timer both timers is to affect the important of speed that flood
Factor so that the flood speed of diffusion the whole network of LSP is a lot of slowly relative to the speed that the data surface message such as CVLAN message forwards:
(1) TRILL network accesses the HELLO timer expiry time of side
The time-out time of this HELLO timer determines the renewal time in LSP data storehouse on RB5, because RB5 needs RB5
Neighbours (RB2 and RB3) all have sent the HELLO message of CVLAN change and just can carry out the renewal in LSP data storehouse, update the time
Depend on time-out time the slowest in the HELLO timer of RB2 and RB3；
(2) TRILL network core side, LSP data storehouse Flooding Time
After RB5 upper formation LSP, need when LSP timer expiry, the LSP that oneself updates could be sent to oneself
All neighbours, realize that LSP floods and so forth.
Therefore, the flood setting of middle HELLO timer and LSP timer both timers of LSP is that impact floods speed
The key factor of degree, the speed that floods is slow.Owing in TRILL network, LSP floods the impact of speed so that in network some RB to point
Send out hedge clipper branch and occur delayed, and then cause the problem that TRILL network there will be the data surface message packet losses such as CVLAN message.
Based on this, the application provides moving method and the system of a kind of VM, and can solve the problem that due to distribution tree beta pruning is delayed
Data surface message packet loss problem in the TRILL network causing.
Hereinafter, it is described with reference to the accompanying drawings the moving method of embodiment of the present invention VM and the realization of system.
Fig. 1 is the moving method schematic flow sheet of embodiment of the present invention VM, sees Fig. 1, and the method includes:
Step 101: centralized servers determines that the CVLAN that the upper VM in RB place, source bridge link (Bridge Link) is used exists
The first configuration variation information before and after VM migration, and, centralized servers determines that on the Bridge Link of purpose RB place, VM is made
CVLAN VM migration before and after the second configuration variation information；
Described source RB refer to VM migrate before the access RB of TRILL network；Described purpose RB refer to VM migrate after TRILL
The access RB of network.The access RB of TRILL network, referred to as accesses RB, refers to: the message sending VM or receiving in the present invention
Carry out the RB of TRILL encapsulation or decapsulation.
Bridge Link refers to the double layer network for interconnecting RB equipment, and it is formed by one or several bridge,
Run the double layer network of STP.
Described first configuration variation information is for indicating CVLAN that on the Bridge Link of RB place, source, VM is used at VM
Configuration variation situation before and after migration；For example, the first configuration variation information can be: on the Bridge Link of RB place, source and source
The configuration of the identical CVLAN of assigned vlan on the Bridge Link of RB place does not changes, or, RB place, source Bridge
The appointment routing bridge (DRB, Designated RBridge) being configured with this CVLAN on Link deletes the CVLAN that VM is used, or
Person, DRB and RB that RB place, source Bridge Link is configured with this CVLAN deletes the CVLAN etc. that VM is used.
The CVLAN that described second configuration variation information is used for VM on the Bridge Link of indicative purpose RB place exists
Configuration variation situation before and after VM migration.For example, described second configuration variation information can be: purpose RB place Bridge
The CVLAN that DRB configuration VM on Link is used, or, the DRB on the Bridge Link of purpose RB place and at least one RB
The CVLAN etc. that configuration VM is used.
Step 102: centralized servers determines VM institute according to described first configuration variation information and the second configuration variation information
Use CVLAN corresponding beta pruning tree；
Step 103: the network that described beta pruning tree consists of the control port being provided by RB is sent by centralized servers
To each RB.
Wherein, described control port refers to: that provided by RB, special and beta pruning server communication, report CVLAN change letter
Breath, the port receiving prune message.
In method shown in Fig. 1, when determining that carrying out VM migrates, centralized servers is determined the first configuration variation information and the
Two configuration variation information, determine used CVLAN couple of VM according to described first configuration variation information and the second configuration variation information
The beta pruning tree answering, beta pruning tree is directly sent to each RB by the network consisting of the control port being provided by RB.Thus, no
Needing to be flooded transmission CVLAN state by LSP, thus RB obtains time of beta pruning tree and is no longer influenced by LSP and floods the HELLO of middle RB
Message timer and LSP flood the impact of timer timing, shorten RB and obtain the time of beta pruning tree, solve due to beta pruning
Delayed, problem that packet loss occurs in data surface message in TRILL network.
It on the basis of Fig. 1, is described in more detail by the moving method to embodiment of the present invention VM for the Fig. 2, its
In, step 201 ~ step 204 is that the one of step 101 more specifically realizes, the corresponding step 102 of step 205, step 206 is
The one of step 103 more specifically realizes.
Seeing Fig. 2, described centralized servers can be arranged in a physical equipment, it is also possible to being arranged at can phase intercommunication
In multiple physical equipments of letter.For example, described centralized servers can be realized jointly by first server and data center,
Described first server and data center can be arranged in Same Physical equipment, it is also possible to be separately positioned on and can be in communication with each other
Two physical equipments in, described physical equipment is the equipment that can carry out data process, such as computer.In the application, described
Data center is the system carrying out data process being arranged in a certain physical equipment.
As in figure 2 it is shown, the method includes:
Step 201: first server determines the specified circuit on distribution tree, each Bridge Link that TRILL network is complete
By the appointment VLAN (Designed on bridge (DRB, Designated RBridge), each Bridge Link
Virtual Local Area Network), the various net-work parameter information of the TRILL network such as the CVLAN that used of each VM；
To described distribution tree beta pruning, obtain each CVLAN corresponding beta pruning tree.
Assigned vlan on one Bridge Link refers to the CVLAN being specified by the DRB on Bridge Link.
Wherein, in this step, first server determines that the DRB on each Bridge Link and assigned vlan can include two
Plant determination mode, concrete:
1st, the first server regularly DRB on each Bridge Link or any one RB inquiry Bridge Link
Current DRB and assigned vlan.
DRB on Bridge Link is to be elected by the RB on this Bridge Link, when the net of Bridge Link
When network structure etc. changes, the election of DRB may be re-started, therefore, DRB on Bridge Link it may happen that
Change.The DRB that is stored with on this Bridge Link due to DRB and each RB on Bridge Link and assigned vlan
Information, therefore, first server can obtain Bridge Link in DRB from Bridge Link for the timing or any one RB
Upper current DRB and the information of assigned vlan, thus update the DRB on this Bridge Link of self storage and appointment
The information of VLAN.
2nd, after the DRB election on Bridge Link completes, the DRB that election obtains actively sends the information of self to first
Server；When assigned vlan on Bridge Link changes, the DRB on Bridge Link actively sends new appointment
The information of VLAN is to first server.The realization of this step may include that
First server receives the information of the DRB that the DRB of each Bridge Link sends and assigned vlan.
Understanding based on the 1st, 2, DRB information can be actively sent to first server together with the information of assigned vlan by DRB, or
Person, it is also possible to when waiting first server inquiry during DRB or RB, sent to first server by DRB or RB being queried.
First server determines that the distribution tree that TRILL network is complete can pass through SPF (Shortest Path
First, SPF) algorithm realization.SPF algorithm can calculate the overall situation tree in whole network, and overall situation tree is non-beta pruning, namely
Each RB forwards all of CVLAN, and the tree of the calculated whole network of SPF algorithm is exactly described distribution tree.
Wherein, this step is preparation process, from the point of view of long playing angle, between step 201 and follow-up step
Not there is inevitable execution sequence；But, it for certain VM once migrates, was necessarily required to first determine before VM migrates
The complete distribution tree of TRILL network, afterwards, the renewal that could carry out distribution tree according to this VM migration (sees step 203 step
205, only in the case of by obtaining CVLAN corresponding beta pruning tree to distribution tree beta pruning, carry out this renewal) and beta pruning process.
Step 202: when data center determines that carrying out a certain VM migrates, obtain source host (HOST) and purpose HOST of VM,
Source HOST and purpose HOST of VM are sent to first server；
Wherein, described source HOST refers to that VM migrates the HOST at front place, purpose HOST refer to VM migrate after the HOST at place.
Wherein, typically data center is provided the user a VM migration information inputting interface, when user is in this interface
Specifying a certain VM when some HOST moves to another HOST, data center can input in this interface according to this user
Information or the operation in this interface determine and carry out the migration of described a certain VM, and it is possible to according to user at this interface
The information of middle input or the operation in this interface get source HOST and purpose HOST of VM.
Step 203: first server determines the net-work parameter information related to VM according to source HOST and purpose HOST of VM.
Wherein, the described net-work parameter information related to VM includes: the source RB of CVLAN, VM migration that VM uses and purpose
DRB on DRB on RB, RB place, source Bridge Link and assigned vlan, purpose RB place Bridge Link and appointment
VLAN.These net-work parameter information related to VM are all pre-stored within first server, and first server is according to the source of VM
HOST and purpose HOST can find above-mentioned net-work parameter information from the information of self storage.
Step 204: first server, according to the described net-work parameter information related to VM, determines RB place, source Bridge
First configuration variation information before and after VM migration for the CVLAN that the upper VM of Link is used, and, determine purpose RB place Bridge
Second configuration variation information before and after VM migration for the CVLAN that the upper VM of Link is used；Further, first server instruction source RB institute
On Bridge Link and purpose RB place Bridge Link, corresponding DRB or DRB and RB modification VM is used
The configuration of CVLAN；
First server instruction RB place, source Bridge Link and purpose RB place Bridge Link on corresponding DRB,
Or the configuration of the CVLAN that DRB and RB modification VM is used may include that
The configuration of the CVLAN that the DRB modification VM on the Bridge Link of RB place, source is used, indicative purpose RB place
The configuration of the CVLAN that the DRB modification VM on Bridge Link is used, or first server instruction RB place, source Bridge
The configuration of the CVLAN that DRB and the RB modification VM on Link is used, DRB and RB on the Bridge Link of indicative purpose RB place
The configuration of the CVLAN that modification VM is used.
1st, first server determines CVLAN that on the Bridge Link of RB place, source, VM is used first before and after migrating
Configuration variation information includes:
First server judges whether the CVLAN that VM uses is the assigned vlan on the Bridge Link of RB place, source, if
Being assigned vlan, the first configuration variation information being determined is: with RB place, source Bridge on the Bridge Link of RB place, source
The configuration of the identical CVLAN of assigned vlan on Link does not changes.
Wherein, the CVLAN that VM uses may be one or more, needs to judge each CVLAN successively in this step.
If the CVLAN that VM uses is not the assigned vlan on the Bridge Link of RB place, source, it is judged that whether VM is this
The VM that on Bridge Link, all RB are connected uses only one VM of this CVLAN.If only one VM, determine
One configuration variation information by: the DRB being configured with this CVLAN on the Bridge Link of RB place, source deletes the CVLAN that used of VM,
Or, DRB and RB that RB place, source Bridge Link is configured with this CVLAN deletes the CVLAN that VM is used.If not
Only one VM, determines that the first configuration variation information is: the configuration of this CVLAN on the Bridge Link of RB place, source does not becomes
Change.
In actual applications, can be by value mark the first configuration variation information preset, for example, when described first configuration becomes
When the value of change information is the first value, represent that described first configuration variation information is should on the RB place Bridge Link of described source
The configuration of CVLAN does not changes；When the value of described first configuration variation information is the second value, represent that the described first configuration becomes
Change information is to be configured with the DRB of this CVLAN on the RB place Bridge Link of described source, or DRB and RB deletes what VM was used
CVLAN.Described first value is unequal with the second value, for example, can preset the first value is 1, and the second value is 0.
Accordingly, the configuration of the CVLAN that the DRB modification VM on instruction RB place, source Bridge Link is used includes:
The CVLAN using as VM is not the assigned vlan on the Bridge link of RB place, source, and VM is for using this CVLAN
Last VM when, instruction RB place, source Bridge Link on be configured with this CVLAN DRB and/or RB delete VM corresponding
CVLAN。
Corresponding with this instruction step, it is configured with this when first server indicates on the Bridge Link of RB place, source
When DRB and RB of CVLAN deletes the CVLAN that VM uses, DRB and RB on the Bridge Link of RB place, source, according to this instruction, deletes
Except the CVLAN using from the described VM configuring with it.
2nd, the second configuration before and after migrating for the CVLAN that VM is used on determination purpose RB place Bridge Link becomes
In change information, described second configuration variation information includes:
The CVLAN that DRB configuration VM on the Bridge Link of purpose RB place is used, or, purpose RB place Bridge
The CVLAN that DRB on Link and at least one RB configuration VM is used.
In actual applications, can preset what the configuration VM of the DRB on described purpose RB place Bridge Link was used
DRB in this configuration variation information of CVLAN and described purpose RB place Bridge Link and at least one RB configuration VM
This configuration variation information of the CVLAN being used is respectively by different symbol logos.
Accordingly, on indicative purpose RB place Bridge Link, corresponding DRB changes the configuration of the CVLAN that VM is used
Including:
The CVLAN that DRB configuration VM on the Bridge Link of indicative purpose RB place is used；
The configuration bag of the CVLAN that corresponding DRB and RB modification VM is used on the Bridge Link of indicative purpose RB place
Include:
The CVLAN that DRB on the Bridge Link of indicative purpose RB place and at least one RB configuration VM is used.
Wherein, between first server and each RB, interface is set, now:
Described first server can be referred to by the corresponding interface directly DRB on the Bridge Link of purpose RB place
Show the configuration carrying out the CVLAN that VM is used；
Accordingly, when the DRB on purpose RB place Bridge Link receives described instruction, will be according to this instruction at self
The CVLAN that the described VM of upper configuration is used.
Or, described first server can be by corresponding interface directly on the Bridge Link of purpose RB place
DRB and RB instruction carries out the configuration of the CVLAN that VM is used.
Accordingly, when DRB and RB on purpose RB place Bridge Link receives described instruction, will exist according to this instruction
Configure the CVLAN that described VM is used from it.
In other words, the embodiment of the present invention is carrying out CVLAN's that on the Bridge Link of purpose RB place, VM is used
During configuration, only can carry out the configuration of the CVLAN that VM is used on the DRB on the Bridge Link of purpose RB place；Or,
DRB and at least one RB carry out the configuration of the CVLAN that VM is used.
If configuring the CVLAN that VM is used on other RB on the Bridge Link of purpose RB place, when needs forward
During this CVLAN corresponding CVLAN message, DRB can indicate that some RB being configured with this CVLAN forwards, thus is not necessarily to
DRB oneself carries out the forwarding of the message of this CVLAN, mitigates DRB and forwards the pressure of CVLAN message, it is ensured that RB on Bridge Link
Load balancing.
Wherein, DRB instruction is configured with the RB of CVLAN and forwards, with beta pruning tree in record by which RB carried out
From the point of view of the forwarding of CVLAN corresponding CVLAN message is from two aspects:
Whole TRILL network is forward CVLAN corresponding CVLAN message, institute according to CVLAN corresponding beta pruning tree
Stating beta pruning tree is to according to Intermediate System-to-Intermediate System (ISIS, Intermediate system to intermediate
System), after the calculated distribution tree of agreement carries out beta pruning, forward according to the beta pruning on beta pruning tree；
And access side in TRILL network, accessing side is not that ISIS agreement calculates route, and is divided into two kinds of situations.A kind of
Situation is: a server accesses a RB, then this server just can only access from this RB；In the case of Ling Yizhong,
It is to access side to require to report his or her problems within a prescribed time and in a prescribed place two RB or many rule arrive multiple RB, when CVLAN is required to report his or her problems within a prescribed time and in a prescribed place to two RB by Bridge, the two RB
The broadcast storm within CVLAN will be formed by Bridge, at this moment, it is necessary to DRB assigns, and only one RB can forward this
CVLAN.Here DRB instruction is configured with the RB of CVLAN and carries out forwarding and refer to CVLAN and require to report his or her problems within a prescribed time and in a prescribed place two RB or many rule to many
The situation of individual RB.
For example, shown in Fig. 2 a, there is RB1 ~ RB50 on a certain Bridge Link, wherein RB33 is DRB, this Bridge
The CVLAN that VM on Link is used is 10, and in a kind of optional scene, DRB is 10 at configuration CVLAN with oneself.At another
Planting in optional scene, on DRB other RB such as RB1, RB3 and RB5 in self and Bridge Link, configuration CVLAN is 10, from
And when the CVLAN message forwarding VLAN tag to be 10, the CVLAN message that DRB does not forward described VLAN tag to be 10, and refer to
Determine the CVLAN message that one of RB1, RB3 and RB5 RB forwards this VLAN tag to be 10.In this optional scene, DRB does not needs
The CVLAN message forwarding this this VLAN tag to be 10, the pressure that DRB E-Packets is low.
Wherein, indicate, between step, not there is inevitable execution sequence described in step 205 ~ step 207 and step 203.
Step 205: first server, according to described first configuration variation information and the second configuration variation information, determines VM institute
Use CVLAN corresponding beta pruning tree.
Wherein, determine that the corresponding beta pruning tree of the used CVLAN of VM can according to described configuration variation information described in this step
To include:
According to described first configuration variation information and the second configuration variation information updating distribution tree, described distribution tree is carried out
Beta pruning, obtains the corresponding beta pruning tree of the used CVLAN of VM.
Wherein, SPF algorithm can calculate the complete distribution tree of whole TRILL network, and this tree is non-beta pruning, namely
Each RB forwards all of CVLAN.In actual applications, a certain CVLAN of some RB configuration, then by corresponding for this CVLAN
CVLAN message is forwarded to this RB and just there is no need.Accordingly, it would be desirable to for every CVLAN, be somebody's turn to do the need of forwarding according to RB
CVLAN carries out beta pruning to whole distribution tree, obtains every corresponding beta pruning tree of CVLAN.When the VM using a certain CVLAN moves
Move, when causing the CVLAN change on RB, it is necessary to update distribution tree, again beta pruning is carried out to distribution tree, obtain this CVLAN pair
The new beta pruning tree answering.
Wherein, when beta pruning being carried out to distribution tree based on a certain CVLAN, judge that each RB is somebody's turn to do the need of forwarding typically respectively
CVLAN, if it is desired, then retain this RB, if do not needed, deletes this RB and this RB corresponding subsequent distribution tree branch, from
And it is finally completed beta pruning, obtain this CVLAN corresponding beta pruning tree.After the beta pruning obtaining after described beta pruning tree namely distribution tree beta pruning
Distribution tree.
Step 206: beta pruning tree is sent to often by the network that first server consists of the control port being provided by RB
One RB.
In common technology, the setting of HELLO timer and LSP timer both timers affects the speed that floods,
Make the flood speed of diffusion the whole network of LSP a lot of slowly relative to the speed that the data surface message such as CVLAN message forwards.
In the embodiment of the present application first server by the control network that forms of port being provided by RB send described in cut
Branch tree, can be not provided with the delay time that beta pruning tree sends, passes through beta pruning tree immediately after first server determines beta pruning tree
The network that the control port being provided by RB forms is sent to RB, such that it is able to reduce the time that RB obtains beta pruning tree further.
In the VM moving method shown in Fig. 2, determined the beta pruning tree of the used CVLAN of VM after migrating by first server,
And the network that the information of beta pruning tree consists of the control port being provided by RB is sent to each RB, thus shortens RB and obtain
Time of beta pruning tree, solve due to distribution tree beta pruning is delayed, and asking of packet loss occurs in the data surface message in TRILL network
Topic；And, first server judges configuration on corresponding Bridge Link for the used CVLAN of VM and cancellation, and indicates accordingly
DRB or DRB on Bridge Link and RB completes, and further ensures what the data surface message in TRILL network forwarded
Accuracy.
Give an actual example as follows for VM moving method shown in Fig. 2:
In the TRILL network shown in Fig. 3, in first server, the specifying information of the complete distribution tree of storage can lead to
Cross mode as shown in table 1 safeguard and store.Wherein cutting of the CVLAN=10 that beta pruning obtains is carried out for CVLAN=10
The information of branch tree can use mode as shown in table 2 below safeguard and store.
Table 1
| DT neighbor table | Port 1 | Port 2 | Port 3 | Port 4 | Port 5 |
| RB1 | Have neighbours | Have neighbours | Have neighbours | Have neighbours | Have neighbours |
| RB2 | Have neighbours | ||||
| RB3 | Have neighbours | Have neighbours | |||
| RB4 | Have neighbours | ||||
| RB5 | Have neighbours | ||||
| RB6 | Have neighbours | ||||
| RB7 | Have neighbours | Have neighbours | |||
| RB8 | Have neighbours |
Table 2
| DT neighbor table | Port 1 | Port 2 | Port 3 | Port 4 | Port 5 |
| RB1 | Have neighbours | Have neighbours | |||
| RB2 | Have neighbours | ||||
| RB6 | Have neighbours | ||||
| RB7 | Have neighbours | Have neighbours | |||
When VM3 moves to RB4 from RB2, the configuration of CVLAN in TRILL network there occurs change, as shown in Figure 4, and this
When, first server will update distribution tree, re-start beta pruning process to distribution tree, obtain such as CVLAN shown in solid in Fig. 4
The beta pruning tree of=10, this beta pruning tree can be represented by table 3 below, and beta pruning tree as shown in table 3 just can be believed by first server
Breath is by the interface with each RB, each RB being sent respectively in TRILL network, in order to RB can be according to this beta pruning tree information
Carry out the forwarding of corresponding CVLAN message.
Table 3
| DT neighbor table | Port 1 | Port 2 | Port 3 | Port 4 | Port 5 |
| RB1 | Have neighbours | Have neighbours | Have neighbours | ||
| RB2 | Have neighbours | ||||
| RB3 | Have neighbours | Have neighbours | |||
| RB4 | Have neighbours | ||||
| RB6 | Have neighbours | ||||
| RB7 | Have neighbours | Have neighbours | |||
In the embodiment of the present invention VM moving method shown in Fig. 2, executive agent is the process step of data center, and it is held
Row main body could alternatively be first server, or the process step that executive agent is first server, and its executive agent also may be used
It to replace with data center, is not limiting as here.For example, in fig. 2, by data center, source HOST and purpose HOST of VM are sent out
Give first server, first server is determined therefrom that the first configuration variation information and the second configuration variation information, and then really
Determine the beta pruning tree of the used CVLAN of VM, in actual applications, it is also possible to by data center according to the source HOST of VM and purpose HOST
Obtain the net-work parameter information related to VM from first server, data center is determined described first configuration variation information and the
Two configuration variation information, and then indicate RB place, source Bridge Link and purpose RB place according to described configuration variation information
DRB and/or RB on Bridge Link carries out the configuration variation of the CVLAN that VM is used, and sends to first server, by the
One server, according to the determination etc. of the beta pruning tree of the used CVLAN of VM after the realization migration of this configuration variation, still can realize this
The goal of the invention of invention.
In the embodiment of the present invention VM moving method shown in Fig. 2, held by data center and first server two
Row main body achieves VM and migrates, and in actual applications, described data center and first server can be arranged at Same Physical
In equipment, or also can be arranged in different physical equipments.
Alternatively, it is also possible to data center and first server are synthesized an executive agent, such as in Fig. 1 and Fig. 5
Centralized servers, this executive agent is completed data center and the function of two executive agents of first server, then such as Fig. 5
Shown in, for TRILL network, centralized servers is set；Embodiment of the present invention VM moving method includes:
Step 501: centralized servers persistently determines on distribution tree and each Bridge Link that TRILL network is complete
The various net-work parameter information of the TRILL network the whole network such as DRB, the CVLAN that used of assigned vlan, each VM；To described point
Send out hedge clipper branch, obtain each CVLAN corresponding beta pruning tree.
Concrete determination method refer to step 201.
Step 502: when centralized servers determines that carrying out a certain VM migrates, centralized servers obtains source HOST and the purpose of VM
HOST, the source HOST according to VM and purpose HOST determine the net-work parameter information related to VM, true according to this net-work parameter information
Fixed described first configuration variation information and the second configuration variation information.
Owing to centralized servers i.e. safeguarding there are the various net-work parameter information of the whole network, therefore, it can directly deposit from self
The net-work parameter information of storage finds and determines the net-work parameter information related to VM.
The determination of configuration variation information sees the description of step 203.
Step 503: right on centralized servers instruction RB place, source Bridge Link and purpose RB place Bridge Link
The configuration of the CVLAN that DRB or DRB answering and RB modification VM is used；
See the description of step 203.
Described instruction can be transmitted by the interface between centralized servers and each DRB or RB.
Step 504: centralized servers determines VM institute according to described first configuration variation information and the second configuration variation information
Use CVLAN corresponding beta pruning tree.
See the description of step 205.
Step 505: for each RB in TRILL network, centralized servers is by the control port being provided by RB
Beta pruning tree is sent to this RB by the network of composition.
Not there is between step 503 and step 504 ~ step 505 inevitable execution sequence.
In the embodiment of the present invention VM moving method shown in Fig. 5, centralized servers is determined that the used CVLAN of VM is corresponding
Beta pruning tree, and beta pruning tree is sent to each RB by the control network that forms of port being provided by RB, thus shortens
RB obtains the time of beta pruning tree, and solve in prior art due to distribution tree beta pruning is delayed, the data surface report in TRILL network
The problem that packet loss occurs in literary composition；And, centralized servers is judged configuration on corresponding Bridge Link for the used CVLAN of VM
With cancellation, and indicate that DRB and/or RB on Bridge Link completes, and further ensures the data in TRILL network accordingly
The accuracy that face message forwards.
Corresponding with said method, the embodiment of the present invention also provides the migratory system of a kind of VM.
The migratory system of described VM can be realized by a physical equipment, it is also possible to by the multiple physics that can be in communication with each other
Equipment realizes.Described physical equipment is the equipment that can carry out data process, such as computer.Described physical equipment includes processor
And internal memory.
As shown in Figure 6, system includes:
First determining unit 610, for determining that the CVLAN that on the Bridge Link of RB place, source, VM is used migrates at VM
The first configuration variation information front and back, and, determine that the CVLAN that on the Bridge Link of purpose RB place, VM is used moves at VM
The second configuration variation information before and after shifting；
Second determining unit 620, for determining VM according to described first configuration variation information and the second configuration variation information
Used CVLAN corresponding beta pruning tree；
Transmitting element 630, beta pruning tree is sent to each by the network forming for the control port by being provided by RB
RB。
Wherein, described control port refers to: provided by RB, special and beta pruning server communication, reports CVLAN change letter
Breath, receives the port of prune message.
Alternatively, as it is shown in fig. 7, the first determining unit 610 includes:
First determination subelement 710, for determining the net-work parameter information related to VM, the described network ginseng related to VM
Number information include: source RB and purpose RB, the DRB on the Bridge Link of RB place, source that CVLAN, VM that VM uses migrates and refer to
Determine the DRB on VLAN, purpose RB place Bridge Link and assigned vlan；
According to the described net-work parameter information related to VM, second determination subelement 720, for determining that described first configures
Change information and described second configuration variation information.
Alternatively, second determination subelement 720 specifically for:
Determine the second configuration variation information by: DRB on the Bridge Link of purpose RB place configuration VM is used
CVLAN, or, the CVLAN that the DRB on the Bridge Link of purpose RB place and at least one RB configuration VM is used；Further,
Judge whether the CVLAN that VM uses is the assigned vlan on the Bridge Link of RB place, source, if it is, determine the
One configuration variation information is: identical with the assigned vlan on the Bridge Link of RB place, source on the Bridge Link of RB place, source
The configuration of CVLAN does not changes；If it does not, judge VM as use this CVLAN only one VM when, determine first configuration become
Change information is: DRB or DRB and the RB deletion VM being configured with this CVLAN on the Bridge Link of RB place, source is corresponding
CVLAN；When judging that VM is not only one VM using this CVLAN, determine that the first configuration variation information is: RB place, source
The configuration of this CVLAN on Bridge Link does not changes.
Alternatively, as shown in Figure 8, this system also includes:
Indicating member 640, is used for indicating on RB place, source Bridge Link and purpose RB place Bridge Link correspondence
DRB or DRB and the configuration of CVLAN that used of RB modification VM；
Alternatively, indicating member 640 specifically for:
The CVLAN that DRB configuration VM on the Bridge Link of indicative purpose RB place is used, or, indicative purpose RB institute
The CVLAN that DRB on Bridge Link and at least one RB configuration VM is used；Further,
Indicating member 640 specifically can be also used for: judges that the CVLAN that VM uses is not on the Bridge Link of RB place, source
Assigned vlan, and when judging VM as using last VM of this CVLAN, instruction RB place, source Bridge Link is upper to be configured
DRB and/or RB having this CVLAN deletes the CVLAN that VM uses.
Preferably, the second determining unit 620 specifically may be used for: according to described first configuration variation information and the second configuration
Change information updates distribution tree, carries out beta pruning to described distribution tree, obtains the corresponding beta pruning tree of the used CVLAN of VM.
Wherein, above unit can be arranged in identical or different physical equipments.
In figure 6 above ~ system shown in Figure 8, the first determining unit 610 determines that the first configuration variation information and the second configuration become
Change information；According to described first configuration variation information and the second configuration variation information, second determining unit 620 determines that VM is used
CVLAN corresponding beta pruning tree；Transmitting element 630 by the control network that forms of port that provided by RB by the information of beta pruning tree
It is sent to each RB.Thus, by way of flooding, no longer carry out the transmission of VM migration information, but directly determine that VM is used
The network that beta pruning tree directly consists of the control port being provided by RB is sent to each RB by CVLAN corresponding beta pruning tree,
Thus shorten the time that RB obtains beta pruning tree, solve due to distribution tree beta pruning is delayed, the data surface report in TRILL network
Literary composition there will be packet loss problem.
It will appreciated by the skilled person that the process realizing above-described embodiment method can pass through programmed instruction phase
The hardware closing completes, and described program can be stored in read/write memory medium, and this program performs above-mentioned side upon execution
Corresponding step in method.Described storage medium can be such as: ROM/RAM, magnetic disc, CD etc..
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. the moving method of a virtual machine VM, it is characterised in that include:
Centralized servers determines user's VLAN that on the bridge link Bridge Link of source route bridge RB place, VM is used
First configuration variation information before and after VM migration for the CVLAN, and, centralized servers determines purpose RB place Bridge Link
Second configuration variation information before and after VM migration for the CVLAN that upper VM is used；
According to described first configuration variation information and the second configuration variation information, centralized servers determines that the used CVLAN of VM is corresponding
Beta pruning tree；
Described beta pruning tree is sent to each RB by the network that centralized servers consists of the control port being provided by RB；
Wherein, centralized servers determines CVLAN that on the Bridge Link of RB place, source, VM is used first before and after VM migration
Configuration variation information, and, centralized servers determines that the CVLAN that on the Bridge Link of purpose RB place, VM is used moves at VM
The second configuration variation information before and after shifting includes:
Centralized servers determines the net-work parameter information related to VM, and the described net-work parameter information related to VM includes: VM makes
CVLAN, VM the source RB and purpose RB, the appointment routing bridge DRB on the Bridge Link of RB place, source that migrate and specify virtual
DRB on LAN VLAN, purpose RB place Bridge Link and assigned vlan；
Determine described first configuration variation information and described second configuration variation according to the described net-work parameter information related to VM
Information；
Wherein, described first configuration variation information and described second configuration are determined according to the described net-work parameter information related to VM
Change information includes:
Determine the second configuration variation information by CVLAN that DRB on the Bridge Link of purpose RB place configuration VM is used, or
The CVLAN that person, the DRB on the Bridge Link of purpose RB place and at least one RB configuration VM is used；Further,
Judge whether the CVLAN that VM uses is the assigned vlan on the Bridge Link of RB place, source, if it is, determine that first joins
Putting change information is: identical with the assigned vlan on the Bridge Link of RB place, source on the Bridge Link of RB place, source
The configuration of CVLAN does not changes；If it does not, judge VM as use this CVLAN only one VM when, determine first configuration become
Change information is: DRB or DRB and the RB deletion VM being configured with this CVLAN on the Bridge Link of RB place, source is corresponding
CVLAN；When judging that VM is not only one VM using this CVLAN, determine that the first configuration variation information is: RB place, source
The configuration of this CVLAN on Bridge Link does not changes.
2. method according to claim 1, it is characterised in that centralized servers determine described first configuration variation information and
After second configuration variation information, also include:
The CVLAN that DRB configuration VM on the Bridge Link of indicative purpose RB place is used, or, indicative purpose RB place
The CVLAN that DRB on Bridge Link and at least one RB configuration VM is used；Further,
Judge the assigned vlan that the CVLAN that VM uses is not on the Bridge Link of RB place, source, and judge that VM should as using
During only one VM of CVLAN, DRB or DRB and RB that instruction RB place, source Bridge Link is configured with this CVLAN delete
The CVLAN using except VM.
3. method according to claim 1 and 2, it is characterised in that join according to described first configuration variation information and second
Put change information and determine that the corresponding beta pruning tree of the used CVLAN of VM includes:
According to described configuration variation information updating distribution tree, beta pruning is carried out to described distribution tree, obtain the used CVLAN of VM corresponding
Beta pruning tree.
4. the migratory system of a virtual machine VM, it is characterised in that include:
First determining unit, for determining that the user that on the bridge link Bridge Link of source route bridge RB place, VM is used is virtual
First configuration variation information before and after VM migration for the LAN CVLAN, and, determine VM on the Bridge Link of purpose RB place
Second configuration variation information before and after VM migration for the CVLAN being used；
According to described first configuration variation information and the second configuration variation information, second determining unit, for determining that VM is used
CVLAN corresponding beta pruning tree；
Transmitting element, described beta pruning tree is sent to each RB by the network forming for the control port by being provided by RB；
Wherein, the first determining unit includes:
First determination subelement, for determining the net-work parameter information related to VM, the described net-work parameter information related to VM
Including: source RB that CVLAN, VM that VM uses migrates and purpose RB, the appointment routing bridge DRB on the Bridge Link of RB place, source
With the DRB specifying on virtual LAN VLAN, purpose RB place Bridge Link and assigned vlan；
Second determination subelement, for determining described first configuration variation information according to the described net-work parameter information related to VM
With described second configuration variation information；
Wherein, second determination subelement specifically for:
Determine the second configuration variation information by CVLAN that DRB on the Bridge Link of purpose RB place configuration VM is used, or
The CVLAN that person, the DRB on the Bridge Link of purpose RB place and at least one RB configuration VM is used；Further,
Judge whether the CVLAN that VM uses is the assigned vlan on the Bridge Link of RB place, source, if it is, determine that first joins
Putting change information is: identical with the assigned vlan on the Bridge Link of RB place, source on the Bridge Link of RB place, source
The configuration of CVLAN does not changes；If it does not, judge VM as use this CVLAN only one VM when, determine first configuration become
Change information is: DRB or DRB and the RB deletion VM being configured with this CVLAN on the Bridge Link of RB place, source is corresponding
CVLAN；When judging that VM is not only one VM using this CVLAN, determine that the first configuration variation information is: RB place, source
The configuration of this CVLAN on Bridge Link does not changes.
5. system according to claim 4, it is characterised in that also include:
Indicating member, the CVLAN being used for the DRB configuration VM on the Bridge Link of indicative purpose RB place, or, refer to
Show the CVLAN that the DRB on the Bridge Link of purpose RB place and at least one RB configuration VM is used；Further,
Indicating member is additionally operable to: judges the assigned vlan that the CVLAN that VM uses is not on the Bridge Link of RB place, source, and sentences
When disconnected VM is for using only one VM of this CVLAN, instruction RB place, source Bridge Link is configured with this CVLAN DRB,
Or DRB and RB deletes the CVLAN that VM uses.
6. the system according to claim 4 or 5, it is characterised in that the second determining unit specifically for: according to described configuration
Change information updates distribution tree, carries out beta pruning to described distribution tree, obtains the corresponding beta pruning tree of the used CVLAN of VM.
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| CN110138670B (en) * | 2019-04-30 | 2022-06-07 | 哈尔滨英赛克信息技术有限公司 | Load migration method based on dynamic path |
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| WO2009026703A1 (en) * | 2007-08-31 | 2009-03-05 | Cirba Inc. | Method and system for evaluating virtualized environments |
| CN102143138A (en) * | 2010-09-15 | 2011-08-03 | 华为技术有限公司 | Method and device for configuring virtual local area network (VLAN) in live migration process of virtual machine |
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