CN104836849A - Virtual machine registering method and device - Google Patents
Virtual machine registering method and device Download PDFInfo
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- CN104836849A CN104836849A CN201510179251.5A CN201510179251A CN104836849A CN 104836849 A CN104836849 A CN 104836849A CN 201510179251 A CN201510179251 A CN 201510179251A CN 104836849 A CN104836849 A CN 104836849A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4541—Directories for service discovery
Abstract
The invention provides a virtual machine (VM) registering method comprising steps of updating locally-stored VM registration information and setting inhibition time for the VM registration information if a MS determines that the VM registration information carried by a registration message exists locally and a routing locator (RLOC) address in the VM registration information carried by the registration message is different from a RLOC address in the locally-stored VM registration information when receiving the registration message carrying an inhibition identifier transmitted by any xTR because of a newly-added VM; and maintaining the locally-stored VM registration information when receiving a registration message carrying a refreshing identifier transmitted for refreshing the VM registration information. Based on the same inventive concept, the invention also provides a VM registering device which may achieve quick recovery of service flow after a VM is migrated in a LISP network.
Description
Technical field
The present invention relates to communication technical field, particularly one registration virtual machine method and apparatus.
Background technology
Identify label and position separated protocol (Locator/Identity Separation Protocol) this networking thought form two independently address spaces: terminal iidentification (Endpoint Identifier, EID) address and route location (Routing Locator, RLOC) address.EID is that the host address of communication end point realizes identical with existing, and the effect in LISP is similar to domain name system (Domain Name System, DNS), has independently space.In LISP network, EID can move independent of RLOC, RLOC can in existing Internet routing forwarding, can overall route, and be polymerized according to network topology situation.The message communicated between EID is encapsulated in the tunnel between RLOC and forwards.
In LISP network, the roughly process that the VM as main frame moves is as follows:
The target edge device (xTR) of VM migration receives the ARP of this VM or the message of coming initiated by main frame, and perception host migration expires under this xTR; Target xTR sends logon message to MS and registers described VM;
MS finds that the log-on message of local this VM stored changes, and sends the source xTR before mapping notification message notice VM migration.
But in existing implementation, if source xTR is before receiving mapping notification message, if send refresh described VM log-on message the logon message cycle to, and have sent logon message to MS, MS can think that described VM moves to described source xTR by described target xTR again, can send again map notification message to described target xTR, until the message that the subsequently received described VM of target xTR sends, again to MS registration, the log-on message of this VM just can not be updated again.In the meantime, there will be described VM log-on message on MS and make mistakes, cause the service recovery time of migration elongated.
Summary of the invention
In view of this, the application provides a kind of registration virtual machine method and apparatus, and to solve in LISP network after VM migration, service traffics can not the problem of quick-recovery soon.
For solving the problems of the technologies described above, the technical scheme of the application is achieved in that
A kind of registration virtual machine VM method, be applied on the MS in identify label and position separated protocol LISP network, the method comprises:
When what described MS received that arbitrary xTR sends because of newly-increased VM carries the logon message suppressing mark, if determine there is the log-on message of the VM that described logon message carries in this locality, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, then send to the xTR that the RLOC address in the log-on message of the described VM of this locality storage is corresponding and map notification message, described xTR is known, and described VM has moved; And upgrading the log-on message of the local described VM stored, the log-on message for described VM arranges the suppression time;
Receive the log-on message for refreshing described VM and send carry the logon message of refreshing identification time, maintain the log-on message of the local described VM stored.
A kind of registration virtual machine VM device, be applied on the MS in identify label and position separated protocol LISP network, this device comprises: receiving element, processing unit and transmitting element;
Described receiving element, for receiving the logon message that xTR sends;
Described processing unit, for receive when described receiving element that arbitrary xTR sends because of newly-increased VM carry the logon message suppressing mark time, if determine there is the log-on message of the VM that described logon message carries in this locality, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, upgrade the log-on message of the local described VM stored, the log-on message for described VM arranges the suppression time; Receive the log-on message for refreshing described VM when described receiving element and send carry the logon message of refreshing identification time, maintain the log-on message of the local described VM stored;
Described transmitting element, for determining that this locality exists the log-on message of the VM that described logon message carries when described processing unit, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, then send to the xTR that the RLOC address in the log-on message of the described VM of this locality storage is corresponding and map notification message, described xTR is known, and described VM has moved.
From technical scheme above, in the application, MS distinguishes newly-increased VM registration and the registration of periodic refresh, namely the registration of log-on message change and the unchanged registration of log-on message of VM of content VM is distinguished, for the log-on message of change, upgrade the log-on message of local storage and suppress a period of time; For unchanged log-on message, do not upgrade the local log-on message stored.By the technical scheme that the application provides, in LISP network after VM migration, the fast quick-recovery of service traffics can be realized.
Accompanying drawing explanation
Fig. 1 is VM register flow path schematic diagram in the embodiment of the present application;
Fig. 2 is the form schematic diagram of the logon message in the embodiment of the present application;
Fig. 3 is LISP network diagram in the embodiment of the present application;
Fig. 4 is that in the embodiment of the present application, in LISP network, VM A moves schematic diagram;
Fig. 5 is the apparatus structure schematic diagram being applied to above-mentioned technology in the embodiment of the present application.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
A kind of registration virtual machine method is provided in the embodiment of the present application, be applied on the MS in LISP network, described MS distinguishes newly-increased VM registration and the registration of periodic refresh, namely the registration of log-on message change and the unchanged registration of log-on message of VM of content VM is distinguished, for the log-on message of change, upgrade the log-on message of local storage and suppress a period of time; For unchanged log-on message, do not upgrade the local log-on message stored.By the technical scheme that the application provides, in LISP network after VM migration, the fast quick-recovery of service traffics can be realized.
The fast quick-recovery of the service traffics of the VM of migration can be made.
When xTR in LISP network finds newly-increased VM, logon message can be sent, for registering newly-increased VM to MS.Carrying in described logon message and suppress mark, for notifying that the log-on message of described VM is suppressed a period of time by MS, namely the log-on message of this VM not being upgraded within the time of suppressing.
XTR finds that the VM increased newly has two kinds of situations, and one is that VM migration causes newly-increased VM, and a kind of is the newly-increased VM directly disposed, and when registration increases VM newly under both of these case, all carries in logon message and suppresses mark.
XTR receives the message that a VM in this website sends first, then think that this VM is for newly-increased VM, the message of transmission can be ARP message, also can be data message etc.
Within the suppression time, xTR is sending the logon message carrying and suppress mark, when suppressing the time then, sends the logon message carrying refreshing identification, to refresh the log-on message of described VM.
Below in conjunction with accompanying drawing, describe in detail in the embodiment of the present application and realize VM registration process.
Be VM register flow path schematic diagram in the embodiment of the present application see Fig. 1, Fig. 1.Concrete steps are:
Step 101, when what MS received that arbitrary xTR sends because of newly-increased VM carries the logon message suppressing mark, if determine there is the log-on message of the VM that described logon message carries in this locality, and RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, then send to the xTR that the RLOC address in the log-on message of the described VM of this locality storage is corresponding and map notification message, described xTR is known, and described VM has moved; And upgrading the log-on message of the local described VM stored, the log-on message for described VM arranges the suppression time.
If determine in this step there is the log-on message of the VM that described logon message carries in this locality, and RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, be no matter whether that the log-on message of the local VM stored arranges the suppression time, the xTR that RLOC address in the log-on message of the local described VM stored of capital notice is corresponding, and upgrade the log-on message of the described VM stored, with the frequent migration for a VM, or a VM has just registered afterwards with regard to the registration of the Scene realization VM of migration.
If determine there is the log-on message of the VM that described logon message carries in this locality, and RLOC address in the log-on message of the VM carried in described logon message is identical with the RLOC address in the log-on message of the described VM that this locality stores, then maintain the log-on message of the local described VM stored, and do not refresh the suppression time that the log-on message for described VM arranges.
The realization of the suppression time in the embodiment of the present application can be that the suppression time is sent to MS by xTR in logon message, also can being that xTR and MS configures the suppression time in this locality, using when needing the log-on message of the VM suppressed.
And being the suppression time that the log-on message of VM is arranged, when receiving the logon message of the log-on message carrying identical VM, not refreshing the described suppression time; But in the suppression time to constantly, for the log-on message of described VM arranges ageing time;
The xTR that this MS receives the log-on message registering described VM arrived because of the suppression time arranged for the log-on message of described VM, and send carry the logon message of refreshing identification time, refresh the ageing time that the log-on message for described VM is arranged;
The ageing time arranged when the log-on message for described VM then, deletes the log-on message of the described VM stored.
Carry for what receive in this step the logon message suppressing mark, if determine the local log-on message that there is not the VM that described logon message carries, then generate the log-on message of described VM, and the suppression time is set for the log-on message of described VM.
Step 102, when what this MS received the log-on message for refreshing described VM and sent carries the logon message of refreshing identification, maintains the log-on message of the local described VM stored.
Arbitrary xTR receives the mapping notification message of MS, or when knowing that the VM of this website rolls off the production line, can send remove logon message to MS, to delete the log-on message of the described VM of this xTR registration.
MS receives arbitrary xTR because receiving the mapping notification message of the VM migration of this website, or know the VM of this website to roll off the production line and send remove logon message time, if determine the local log-on message storing described VM, and ROLC address in the log-on message of described VM is identical with the RLOC address in the described log-on message removing the VM carried in logon message, then delete the log-on message of described VM.
In the application's specific embodiment, described in go logon message can be a kind of message of newly-increased type; Also can, for carrying the logon message deleting mark, MS be made to delete the log-on message of old VM for realizing.
Removing the log-on message carrying described VM in logon message, for making MS at the log-on message of the VM of this locality coupling correspondence.
In the embodiment of the present application, carry the logon message suppressing mark, the logon message carrying refreshing identification, and remove logon message, the logon message in existing realization all can be used to carry newly-increased mark and realize.
See the form schematic diagram that Fig. 2, Fig. 2 are the logon message in the embodiment of the present application.Newly-increased identification field in Fig. 2 is for carrying suppression mark, refreshing identification or the deletion mark in the embodiment of the present application.
As used R to identify, identifying described logon message is logon message for periodic refresh, only refreshes ageing time; Identify as used S, identify described logon message for registering newly-increased VM, and need to suppress a period of time, be not replaced within the suppression time, unless this VM moves again within the suppression time, namely receive log-on message inconsistent, and carry the logon message suppressing mark, just can be replaced, and the log-on message after replacing is suppressed; As used D flag, identifying described logon message and being used for registration, namely for notifying that MS deletes the log-on message carried in described logon message.
Log-on message in the embodiment of the present application, only for be the log-on message of VM, do not comprise, do not affect the realization of other log-on message in existing realization in other words.
Below in conjunction with accompanying drawing, describe the implementation method of VM registration in the application's specific embodiment in detail.
Be LISP network diagram in the embodiment of the present application see Fig. 3, Fig. 3.Virtual MAC in Fig. 3 on xTR1 and xTR2 is consistent, xTR1 and xTR2 configures ARP proxy.RLOC address on xTR1 is the RLOC address on 1.1.1.1, xTR2 is 2.2.2.2.
When each VM reaches the standard grade, each xTR registers each VM to MS, registers VM A for xTR1 to MS.
When xTR1 receives the message of VM A transmission first, find that this website increases VM A newly, send logon message registration VM A to MS, and in described logon message, carry suppression mark.
When MS receives the logon message of xTR1 transmission, determine the local log-on message that there is not the VM A that described logon message carries, then store the log-on message of VM A, and arrange the suppression time of local configuration for the log-on message of VM A, the present embodiment all configures ageing time for xTR and MS.
XTR sends the logon message carrying and suppress mark within the suppression time to the MS cycle, also can send the logon message carrying refreshing identification the cycle.
MS suppression time corresponding to the log-on message of VM A then before, receive the logon message of the log-on message carrying VM A, maintain the log-on message of the local VM A stored, and do not refresh the suppression time.
XTR the suppression time to rear to send to MS carry the logon message of refreshing identification.
MS be VM A arrange the suppression time then, for VM A arranges ageing time.
MS receive xTR send carry the logon message of refreshing identification time, if determine the RLOC address in the log-on message of the VM A that this logon message carries, identical with the ROLC address in the log-on message of the VM A that this locality stores, be 2.2.2.2, then refresh the ageing time for VM A is arranged.
Then, MS deletes the log-on message of the local VM A stored to ageing time.
See Fig. 4, Fig. 4 be in the embodiment of the present application in LISP network VM A move schematic diagram.In Fig. 4, VM A is by the website that to be the Web Tra nsition of (10.1.1.0/24) to address be (11.1.1.0/24) of the address in Fig. 3.
VM A move after, the IP address of VM A and MAC Address constant; VM A is before migration, and on MS, EID address 10.1.1.66 in the log-on message of VM A, corresponding RLOC address is 1.1.1.1.
XTR2 receive gratuitous ARP that VM B in website sends or send to this website outgoing message time, know newly-increased VM A in this website, sending to carry to MS suppresses the logon message of mark for registering VMA, and carry log-on message: 10.1.1.66/2.2.2.2, namely EID address is 10.1.1.66, and corresponding RLOC address is 2.2.2.2.
MS receive xTR2 send carry suppress mark logon message registration VM A time, determine that the RLOC address that in the log-on message of the VM A carried, 10.1.1.66 is corresponding is 2.2.2.2, and the RLOC address that 10.1.1.66 is corresponding in the log-on message of this locality storage VM A is 1.1.1.1, be then the xTR1 transmission mapping notification message of 1.1.1.1 to RLOC address, xTR1 is known, and VM A has moved;
And use the log-on message of the VM A carried in logon message to replace the log-on message of the local VM A stored, and is set for the log-on message of VM A the suppression time.
Within the suppression time, if MS receives the logon message carrying refreshing identification that xTR1 sends when refreshing the log-on message of VM A, determine the local log-on message storing VM A, but be provided with the suppression time for the log-on message of described VM A, then maintain the log-on message of the local VM A stored.
XTR1 is before the mapping notification message receiving MS transmission, and transmission logon message refreshes the cycle of the log-on message of VMA then, sends the logon message carrying refreshing identification to MS.
XTR1 when receiving the mapping notification message that MS sends, or perceives VM A when rolling off the production line, and sends and removes logon message, namely delete the log-on message of the VM A that xTR1 registers to MS to MS.
MS receives the logon message that xTR1 sends, and determines the local log-on message whether storing VM A, if existed, and the log-on message of VM A that described logon message carries is consistent with the log-on message carried in logon message, then delete; Otherwise, do not process; If there is no, then not with process.
MS suppression time corresponding to the log-on message of VM A then before, receive the logon message of the log-on message carrying VM A, maintain the log-on message of the local VM A stored, and do not refresh the suppression time.
XTR2 the suppression time to rear to send to MS carry the logon message of refreshing identification.
MS be VM A arrange the suppression time then, for VM A arranges ageing time.
MS receive xTR send carry the logon message of refreshing identification time, if determine the RLOC address in the log-on message of the VM A that this logon message carries, identical with the ROLC address in the log-on message of the VM A that this locality stores, be 2.2.2.2, then refresh the ageing time for VM A is arranged.
Then, MS deletes the log-on message of the local VM A stored to ageing time.
Based on same inventive concept, the application also proposes a kind of registration virtual machine, is applied on the MS in identify label and position separated protocol LISP network.It is the apparatus structure schematic diagram being applied to above-mentioned technology in the embodiment of the present application see Fig. 5, Fig. 5.This device comprises: receiving element 501, processing unit 502 and transmitting element 503;
Receiving element 501, for receiving the logon message that xTR sends;
Processing unit 502, for receive when receiving element 501 that arbitrary xTR sends because of newly-increased VM carry the logon message suppressing mark time, if determine there is the log-on message of the VM that described logon message carries in this locality, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, upgrade the log-on message of the local described VM stored, the log-on message for described VM arranges the suppression time; Receive the log-on message for refreshing described VM when receiving element 501 and send carry the logon message of refreshing identification time, maintain the log-on message of the local described VM stored;
Transmitting element 503, for determining that this locality exists the log-on message of the VM that described logon message carries when processing unit 502, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, then send to the xTR that the RLOC address in the log-on message of the described VM of this locality storage is corresponding and map notification message, described xTR is known, and described VM has moved.
Preferably,
Processing unit 502, determine that if be further used for this locality exists the log-on message of the VM that described logon message carries, and RLOC address in the log-on message of the VM carried in described logon message is identical with the RLOC address in the log-on message of the described VM that this locality stores, then maintain the log-on message of the local described VM stored, and do not refresh the suppression time that the log-on message for described VM arranges.
Preferably,
Described determining unit, determines the local log-on message that there is not the VM that described logon message carries, then generates the log-on message of described VM if be further used for, and arranges the suppression time for the log-on message of described VM.
Preferably,
Processing unit 502, is further used for suppression time of arranging for the log-on message of arbitrary VM then, arranges ageing time; The xTR receiving the log-on message registering described VM when receiving element 501 arrived because of the suppression time arranged for the log-on message of described VM, and send carry the logon message of refreshing identification time, refresh the ageing time that the log-on message for described VM is arranged; The ageing time arranged when the log-on message for described VM then, deletes the log-on message of the described VM stored.
Preferably,
Receiving element 501, is further used for reception and removes logon message;
Processing unit 502, be further used for when receiving element 501 receives arbitrary xTR because receiving the notice of the VM migration of this website, or know the VM of this website to roll off the production line and send remove logon message time, if determine the local log-on message storing described VM, and ROLC address in the log-on message of described VM is identical with the RLOC address in the described log-on message removing the VM carried in logon message, then delete the log-on message of described VM.
Preferably,
The described logon message that goes is carry the logon message deleting mark.
The unit of above-described embodiment can be integrated in one, and also can be separated deployment; A unit can be merged into, also can split into multiple subelement further.
In sum, the application distinguishes newly-increased VM registration and the registration of periodic refresh by MS, namely distinguish the registration of log-on message change and the unchanged registration of log-on message of VM of content VM, for the log-on message of change, the log-on message that renewal this locality stores also suppresses a period of time; For unchanged log-on message, do not upgrade the local log-on message stored.By the technical scheme that the application provides, in LISP network after VM migration, the fast quick-recovery of service traffics can be realized.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (12)
1. register a virtual machine VM method, be applied on the MS in identify label and position separated protocol LISP network, it is characterized in that, the method comprises:
When what described MS received that arbitrary edge device xTR sends because of newly-increased VM carries the logon message suppressing mark, if determine there is the log-on message of the VM that described logon message carries in this locality, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, then send to the xTR that the RLOC address in the log-on message of the described VM of this locality storage is corresponding and map notification message, described xTR is known, and described VM has moved; And upgrading the log-on message of the local described VM stored, the log-on message for described VM arranges the suppression time;
Receive the log-on message for refreshing described VM and send carry the logon message of refreshing identification time, maintain the log-on message of the local described VM stored.
2. method according to claim 1, is characterized in that, described method comprises further:
If determine there is the log-on message of the VM that described logon message carries in this locality, and RLOC address in the log-on message of the VM carried in described logon message is identical with the RLOC address in the log-on message of the described VM that this locality stores, then maintain the log-on message of the local described VM stored, and do not refresh the suppression time that the log-on message for described VM arranges.
3. method according to claim 1, is characterized in that,
If determine the local log-on message that there is not the VM that described logon message carries, then generate the log-on message of described VM, and the suppression time is set for the log-on message of described VM.
4. the method according to claim 1-3 any one, is characterized in that,
The suppression time arranged for the log-on message of arbitrary VM then, arranges ageing time;
The xTR receiving the log-on message registering described VM arrived because of the suppression time arranged for the log-on message of described VM, and send carry the logon message of refreshing identification time, refresh the ageing time that the log-on message for described VM is arranged;
The ageing time arranged when the log-on message for described VM then, deletes the log-on message of the described VM stored.
5. the method according to claim 1-3 any one, is characterized in that, described method comprises further:
Described MS receives arbitrary xTR because receiving the notice of the VM migration of this website, or know the VM of this website to roll off the production line and send remove logon message time, if determine the local log-on message storing described VM, and ROLC address in the log-on message of described VM is identical with the RLOC address in the described log-on message removing the VM carried in logon message, then delete the log-on message of described VM.
6. method according to claim 5, is characterized in that,
The described logon message that goes is carry the logon message deleting mark.
7. register a virtual machine VM device, be applied on the MS in identify label and position separated protocol LISP network, it is characterized in that, this device comprises: receiving element, processing unit and transmitting element;
Described receiving element, for receiving the logon message that edge device xTR sends;
Described processing unit, for receive when described receiving element that arbitrary xTR sends because of newly-increased VM carry the logon message suppressing mark time, if determine there is the log-on message of the VM that described logon message carries in this locality, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, upgrade the log-on message of the local described VM stored, the log-on message for described VM arranges the suppression time; Receive the log-on message for refreshing described VM when described receiving element and send carry the logon message of refreshing identification time, maintain the log-on message of the local described VM stored;
Described transmitting element, for determining that this locality exists the log-on message of the VM that described logon message carries when described processing unit, and route location RLOC address in the log-on message of the VM carried in described logon message is different from the RLOC address in the log-on message of the described VM that this locality stores, then send to the xTR that the RLOC address in the log-on message of the described VM of this locality storage is corresponding and map notification message, described xTR is known, and described VM has moved.
8. device according to claim 7, is characterized in that,
Described processing unit, determine that if be further used for this locality exists the log-on message of the VM that described logon message carries, and RLOC address in the log-on message of the VM carried in described logon message is identical with the RLOC address in the log-on message of the described VM that this locality stores, then maintain the log-on message of the local described VM stored, and do not refresh the suppression time that the log-on message for described VM arranges.
9. device according to claim 7, is characterized in that,
Described determining unit, determines the local log-on message that there is not the VM that described logon message carries, then generates the log-on message of described VM if be further used for, and arranges the suppression time for the log-on message of described VM.
10. the device according to claim 7-9 any one, is characterized in that,
Described processing unit, is further used for suppression time of arranging for the log-on message of arbitrary VM then, arranges ageing time; The xTR receiving the log-on message registering described VM when described receiving element arrived because of the suppression time arranged for the log-on message of described VM, and send carry the logon message of refreshing identification time, refresh the ageing time that the log-on message for described VM is arranged; The ageing time arranged when the log-on message for described VM then, deletes the log-on message of the described VM stored.
11. devices according to claim 7-9 any one, is characterized in that,
Described receiving element, is further used for reception and removes logon message;
Described processing unit, be further used for when described receiving element receives arbitrary xTR because receiving the notice of the VM migration of this website, or know the VM of this website to roll off the production line and send remove logon message time, if determine the local log-on message storing described VM, and ROLC address in the log-on message of described VM is identical with the RLOC address in the described log-on message removing the VM carried in logon message, then delete the log-on message of described VM.
12. devices according to claim 11, is characterized in that,
The described logon message that goes is carry the logon message deleting mark.
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| CN102088390A (en) * | 2009-12-08 | 2011-06-08 | 中兴通讯股份有限公司 | Implementation method of user mobility |
| US8929377B2 (en) * | 2011-03-15 | 2015-01-06 | Futurewei Technologies, Inc. | Systems and methods for automatic rack detection |
| CN103379185A (en) * | 2012-04-26 | 2013-10-30 | 华为技术有限公司 | Method, device and system for network address translation |
| CN102884763A (en) * | 2012-06-30 | 2013-01-16 | 华为技术有限公司 | Cross-data-center virtual machine migration method, service control gateway and cross-data-center virtual machine migration |
| CN102833171A (en) * | 2012-09-10 | 2012-12-19 | 杭州华三通信技术有限公司 | Data center-cross MAC (Media Access Control) migration processing method and device |
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