CN107547400A - A kind of virtual machine migration method and device - Google Patents
A kind of virtual machine migration method and device Download PDFInfo
- Publication number
- CN107547400A CN107547400A CN201710476005.5A CN201710476005A CN107547400A CN 107547400 A CN107547400 A CN 107547400A CN 201710476005 A CN201710476005 A CN 201710476005A CN 107547400 A CN107547400 A CN 107547400A
- Authority
- CN
- China
- Prior art keywords
- virtual machine
- tunnel router
- address
- message
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The disclosure, which provides a kind of virtual machine migration method and device, this method, to be included：Two address corresponding relation of first address with the first tunnel router of virtual machine is recorded in the mapping table；When the virtual machine is reached the standard grade in the second tunnel router, pass through mapping table described in the first address lookup of the virtual machine；If the second address corresponding with first address in the mapping table be present, first message is then sent to the first tunnel router according to second address, the first message carries the 3rd address of second tunnel router, so that first tunnel router is when perceiving the virtual machine and leaving, according to the 3rd address of second tunnel router, forwarding-table item corresponding to the virtual machine is changed.By the technical scheme of the disclosure, when virtual machine migrates, business interruption time can be shortened.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of virtual machine migration method and device.
Background technology
LISP (Location/ID Separation Protocol, position and identity separated protocol) is position and mark
The networking thought of separation, IP address can be divided into EID (Endpoint ID, terminal iidentification) and RLOC (Routing
Locator, route locating), and introduce EID and RLOC mapping relations.EID is used to identify main frame, does not possess global route work(
Can, it can be migrated independently of RLOC；RLOC is route for the whole network.
With the development of big data and virtualization technology, virtual machine (VM) migration on physical server turns into common technique
Means, as shown in figure 1, the schematic diagram migrated for cross-network segment in LISP networks.Migrated in virtual machine 112 from tunnel router 121
During to tunnel router 122, tunnel router 122 has perceived virtual machine addition, and sends and carried virtually to mapping server
Map-Register (mapping registration) message of the IP address of machine 112.MS is after Map-Register messages are received, it is determined that virtually
Machine 112 has occurred and that migration, and the IP address and tunnel router 122 of virtual machine 112 are recorded in EID-to-RLOC mapping relations
IP address mapping relations, delete the mapping relations of the IP address of IP address and the tunnel router 121 of virtual machine 112, and
Map-Notify (mapping notice) message is sent to tunnel router 121.Tunnel router 121 is receiving Map-Notify message
Afterwards, determine that virtual machine 112 migrates, delete the relevant information of virtual machine 112.
But after virtual machine 112 migrates, tunnel router 121 does not delete the relevant information of virtual machine 112
This period, if tunnel router 121 receives the message that virtual machine 111 is sent to virtual machine 112, then tunnel router
121 forward the message to virtual machine 112 still according to original list item, but message can not really be transferred to virtual machine 112, cause
Message dropping, the business of virtual machine 112 are interrupted.
The content of the invention
The disclosure provides a kind of virtual machine migration method, applied to the second tunnel router, including：
Two address corresponding relation of first address with the first tunnel router of virtual machine is recorded in the mapping table；Its
In, first tunnel router is the tunnel router accessed before the virtual machine (vm) migration；
When the virtual machine is reached the standard grade in second tunnel router, pass through the first address lookup institute of the virtual machine
State mapping table；If the second address corresponding with first address in the mapping table be present, according to second address to
First tunnel router sends first message, and the first message carries the 3rd address of second tunnel router, so that
First tunnel router is when perceiving the virtual machine and leaving, according to the 3rd address of second tunnel router,
Change forwarding-table item corresponding to the virtual machine.
The disclosure provides a kind of virtual machine migration method, applied to the first tunnel router, including：
Receive the first message of the second tunnel router transmission；The first message carries second tunnel router
3rd address, the first address of the virtual machine reached the standard grade in second tunnel router；
If the forwarding-table item according to corresponding to the determination of the first address of the virtual machine locally has the virtual machine, basis
First address of the virtual machine sends detection message to the virtual machine, if not received for the inspection in preset time
The response message of message is surveyed, then perceives the virtual machine and leaves, and according to the 3rd address of second tunnel router, repair
Change forwarding-table item corresponding to the virtual machine.
The disclosure provides a kind of virtual machine (vm) migration device, applied to the second tunnel router, including：
Logging modle, for recording the first address of virtual machine and the second address of the first tunnel router in the mapping table
Corresponding relation；First tunnel router is the tunnel router accessed before the virtual machine (vm) migration；
Enquiry module, for when the virtual machine is reached the standard grade in second tunnel router, then passing through the virtual machine
The first address lookup described in mapping table；
Sending module, for when the second address corresponding with first address in the mapping table be present, according to institute
State the second address and send first message to the first tunnel router, the first message carries the of second tunnel router
Three addresses, so that first tunnel router is when perceiving the virtual machine and leaving, according to second tunnel router
The 3rd address, change forwarding-table item corresponding to the virtual machine.
The disclosure provides a kind of virtual machine (vm) migration device, applied to the first tunnel router, including：
Receiving module, the first message sent for receiving the second tunnel router；The first message carries the second tunnel
The 3rd address, the first address of the virtual machine reached the standard grade in the second tunnel router of road router；
Sending module, turn for working as according to corresponding to the determination of the first address of the virtual machine locally has the virtual machine
During forwarding list item, then detection message is sent to the virtual machine according to the first address of the virtual machine；
Processing module, for when not receiving the response message for the detection message in preset time, then feeling
Know that the virtual machine leaves, and according to the 3rd address of second tunnel router, change and turn corresponding to the virtual machine
Forwarding list item.
The disclosure provides a kind of machinable medium, and the machinable medium is route applied to the second tunnel
Device, some computer instructions are stored with the machinable medium, carried out when the computer instruction is performed as follows
Processing：
Two address corresponding relation of first address with the first tunnel router of virtual machine is recorded in the mapping table；Its
In, first tunnel router is the tunnel router accessed before the virtual machine (vm) migration；
When the virtual machine is reached the standard grade in second tunnel router, pass through the first address lookup institute of the virtual machine
State mapping table；If the second address corresponding with first address in the mapping table be present, according to second address to
First tunnel router sends first message, and the first message carries the 3rd address of second tunnel router, so that
First tunnel router is when perceiving the virtual machine and leaving, according to the 3rd address of second tunnel router,
Change forwarding-table item corresponding to the virtual machine.
The disclosure provides a kind of machinable medium, and the machinable medium is route applied to the first tunnel
Device, some computer instructions are stored with the machinable medium, carried out when the computer instruction is performed as follows
Processing：
Receive the first message of the second tunnel router transmission；The first message carries second tunnel router
3rd address, the first address of the virtual machine reached the standard grade in second tunnel router；
If the forwarding-table item according to corresponding to the determination of the first address of the virtual machine locally has the virtual machine, basis
First address of the virtual machine sends detection message to the virtual machine, if not received for the inspection in preset time
The response message of message is surveyed, then perceives the virtual machine and leaves, and according to the 3rd address of second tunnel router, repair
Change forwarding-table item corresponding to the virtual machine.
Based on above-mentioned technical proposal, in the embodiment of the present disclosure, under the scene of the virtual machine (vm) migration of LISP networks, when virtual
When machine migrates, it is ensured that business is not interrupted or interrupted on a small quantity as far as possible, shortens the time of service disconnection, accelerates convergence
Speed, raising virtual machine (vm) migration is ageing, business is switched fast.
Brief description of the drawings
, below will be to the disclosure in order to clearly illustrate the embodiment of the present disclosure or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is only some embodiments described in the disclosure, for those of ordinary skill in the art, can also be according to this public affairs
These accompanying drawings for opening embodiment obtain other accompanying drawings.
Fig. 1 is the networking schematic diagram that cross-network segment migrates in LISP networks；
Fig. 2 is the flow chart of the virtual machine migration method in a kind of embodiment of the disclosure；
Fig. 3 is the application scenarios schematic diagram in a kind of embodiment of the disclosure；
Fig. 4 is the structure chart of the virtual machine (vm) migration device in a kind of embodiment of the disclosure；
Fig. 5 is the hardware structure diagram of the second tunnel router in a kind of embodiment of the disclosure；
Fig. 6 is the structure chart of the virtual machine (vm) migration device in disclosure another embodiment；
Fig. 7 is the hardware structure diagram of the first tunnel router in a kind of embodiment of the disclosure.
Embodiment
Purpose in the term that the disclosure uses merely for the sake of description specific embodiment, and the unrestricted disclosure.This public affairs
Open and be also intended to " one kind " of the singulative used in claims, " described " and "the" including most forms, unless
Context clearly shows that other implications.It is also understood that term "and/or" used herein refers to comprising one or more
Individual associated list items purpose is any or is possible to combine.
It will be appreciated that though various letters may be described using term first, second, third, etc. in the embodiment of the present disclosure
Breath, but these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example,
Without departing from the scope of this disclosure, the first information can also be referred to as the second information, and similarly, the second information can also
It is referred to as the first information.Depending on linguistic context, in addition, used word " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
The embodiment of the present disclosure proposes a kind of virtual machine migration method, and this method can apply to include multiple tunnel routers
With the LISP networks of mapping server.Wherein, mapping server can be MS (Mapping Server, mapping server) or
MR (Mapping Resolver, Mapping Resolution device).Tunnel router can be xTR (Tunnel Router, tunnel route
Device), and xTR can be ITR (Ingress Tunnel Router, tunnel portal router) or ETR (Egress Tunnel
Router, tunnel outlet router).
Wherein, ITR and ETR is relative, as main frame 1 to main frame 2 send message when, in the place LISP domains of main frame 1 is
ITR, that in the place LISP domains of main frame 2 is ETR, main frame 2 to main frame 1 send message when, that in the place LISP domains of main frame 2 is ITR,
That in the place LISP domains of main frame 1 is ETR.
In one example, these tunnel routers can include the first tunnel router and the second tunnel router, the
One tunnel router is the tunnel router before virtual machine (vm) migration, and the second tunnel router is the tunnel road after virtual machine (vm) migration
By device.For example, when virtual machine A moves to tunnel router 2 from tunnel router 1, then the first tunnel router is tunnel road
By device 1, the second tunnel router is tunnel router 2.
Shown in Figure 2, for the flow chart of the virtual machine migration method, this method may comprise steps of：
Step 201, the second tunnel router records the first address and the first tunnel router of virtual machine in the mapping table
The two address corresponding relation of (tunnel router accessed before virtual machine (vm) migration).
In one example, for " the second tunnel router records the first address and first of virtual machine in the mapping table
The process of the two address corresponding relation of tunnel router ", following manner can be included but is not limited to：Mode one, when first
Tunnel router sends the first address of the virtual machine and the according to the request of the virtual machine being connected with itself to mapping server
Behind second address of one tunnel router, the second tunnel router receives the second message that mapping server is sent, and this second disappears
Breath carries the second address of the first address and the first tunnel router of the virtual machine, and record in the mapping table the first address with
Two address corresponding relation.Mode two, when the first tunnel router according to the request of the virtual machine being connected with itself to second
After tunnel router sends the first address of the virtual machine and the second address of the first tunnel router, the second tunnel router connects
The two address message for carrying the first address of virtual machine with the first tunnel router is received, and records the first ground in the mapping table
Location and two address corresponding relation.Mode three, the second tunnel router directly configure the first ground of virtual machine in the mapping table
Location and the two address corresponding relation of the first tunnel router.
For aforesaid way one, then one embodiment can be：When virtual machine reaches the standard grade (i.e. first in the first tunnel router
Tunnel router receives the request that the virtual machine being connected with itself is sent) when, the first tunnel router is sent out to mapping server
Send the two address message for carrying the first address of the virtual machine with first tunnel router.Mapping server is receiving
After the message that first tunnel router is sent, the first address for carrying virtual machine and the first tunnel are sent to the second tunnel router
Two address second message of road router.Second tunnel router is receiving the second message of mapping server transmission
Afterwards, the first address of virtual machine and the two address corresponding relation of the first tunnel router can be recorded in the mapping table.
Step 202, when virtual machine is reached the standard grade in the second tunnel router, the second tunnel router pass through the virtual machine
One address lookup mapping table.If the second address corresponding with first address in mapping table be present, illustrate the virtual machine be from
Other tunnel routers move to this second tunnel router, perform step 203.If it is not present and first address in mapping table
Corresponding second address, then it is not to move to this second tunnel router from other tunnel routers to illustrate the virtual machine, is used
Traditional process is handled, and will not be repeated here.
Wherein, virtual machine is after the first tunnel router is reached the standard grade, if the virtual machine is reached the standard grade in the second tunnel router again,
Then represent that the virtual machine moves to second tunnel router from first tunnel router.
Step 203, the second tunnel router second address according to present in mapping table, sent to the first tunnel router
First message.The first message can carry the first address of the virtual machine, the 3rd address of second tunnel router, and should
First message is used to represent that the virtual machine has migrated to the second tunnel router.
Step 204, the first tunnel router receives the first message that the second tunnel router is sent, if according to virtual machine
First address determines locally forwarding-table item corresponding to the virtual machine be present, then is sent according to the first address of virtual machine to virtual machine
Message is detected, whether the detection message is online for detecting virtual machine.
Wherein, the first tunnel router can parse virtual machine after first message is received from the first message
The first address, and by the first address lookup forwarding-table item, if (being deposited in the presence of forwarding-table item corresponding with first address
In forwarding-table item corresponding to the virtual machine), then illustrate that the virtual machine is reached the standard grade in this first tunnel router, and according to the virtual machine
The first address to the virtual machine send detection message.
Step 205, if the first tunnel router does not receive the response message for the detection message in preset time,
Then perceive virtual machine to leave, and according to the 3rd address of the second tunnel router, change forwarding-table item corresponding to the virtual machine,
I.e. the outgoing interface of the forwarding-table item can be interface corresponding to the 3rd address.
In one example, for " the first tunnel router changes the void according to the 3rd address of the second tunnel router
The process of forwarding-table item corresponding to plan machine ", following manner can be included but is not limited to：First tunnel router is according to the second tunnel
3rd address of router, (this second connects the second interface for determining to be connected with the second tunnel router on the first tunnel router
The next-hop of mouth is exactly the 3rd address of the second tunnel router)；The outgoing interface of forwarding-table item corresponding to the virtual machine is changed
For the second interface.
In one example, the first tunnel router is changed virtual machine according to the 3rd address of the second tunnel router and corresponded to
Forwarding-table item after, can also to the second tunnel router send for first message confirmation response message (such as ACK message).
For example, the first tunnel router parses the 3rd address of the second tunnel router from the first message, and according to the 3rd
Address is sent to second tunnel router confirms response message.
Further, the second tunnel router according to the second address to the first tunnel router send first message it
Afterwards, if receiving the confirmation response message for the first message of the first tunnel router transmission in preset time, really
Determine virtual machine and move to the second tunnel router from the first tunnel router, i.e., the virtual machine currently reached the standard grade is legal virtual
Machine.Therefore, the second tunnel router sends the 3rd message to mapping server, and the 3rd message can carry the of the virtual machine
One address, the 3rd address of second tunnel router.Mapping server is after the 3rd message is received, it is possible to by EID/
The first address recorded in RLOC list items and two address corresponding relation, it is revised as the first address pass corresponding with the 3rd address
System.
In one example, after the first tunnel router sends detection message to virtual machine, if the first tunnel router
The response message for the detection message is received in preset time, then perceives virtual machine still on the first tunnel router
Line, retain forwarding-table item corresponding to the virtual machine, and can be sent to the second tunnel router and deny ringing for first message
Answer message (such as NACK message), or, refuse to the second tunnel router send for first message response message (i.e. not to
Second tunnel router returns to any response message).For example, the first tunnel router can carry out from the first message
3rd address of the second tunnel router, and sent according to the 3rd address to second tunnel router and deny response message.
Further, the second tunnel router according to the second address to the first tunnel router send first message it
Afterwards, if not receiving the confirmation response message for the first message of the first tunnel router transmission in preset time (such as
Received in preset time and deny response message or do not receive any response message), then the second tunnel router is true
Determine virtual machine and do not move to the second tunnel router from the first tunnel router, i.e., the virtual machine currently reached the standard grade is illegal virtual
Machine.Therefore, the second tunnel router will not send the 3rd message to mapping server, will not trigger mapping server renewal EID/
RLOC list items.
In one example, when virtual machine is reached the standard grade in the second tunnel router, the second tunnel router can also be
The first address of virtual machine, the 3rd address of the second tunnel router, second tunnel router are recorded in EID/RLOC list items
The corresponding relation of the upper first interface being connected with the virtual machine.Based on this, the second tunnel router according to the second address to
, should if not receiving being directed to for the first tunnel router transmission in preset time after one tunnel router sends first message
The confirmation response message of first message, then first address, the 3rd address can also be deleted from the EID/RLOC list items, is somebody's turn to do
The corresponding relation of first interface.
In the above-described embodiments, the first address of virtual machine can be the IP address and/or MAC Address of virtual machine, first
Second address of tunnel router can be the IP address and/or MAC Address of the first tunnel router, the second tunnel router
3rd address is the IP address and/or MAC Address of the second tunnel router.
Based on above-mentioned technical proposal, in the embodiment of the present disclosure, under the scene of the virtual machine (vm) migration of LISP networks, when virtual
When machine migrates, it is ensured that business is not interrupted or interrupted on a small quantity as far as possible, shortens the time of service disconnection, accelerates convergence
Speed, raising virtual machine (vm) migration is ageing, is switched fast business.
Below in conjunction with the application scenarios shown in Fig. 3, above-mentioned technical proposal is further detailed.In fig. 3, it is assumed that
The IP address of virtual machine 311 is 4.1.1.1, and the IP address of virtual machine 312 is 5.1.1.1, and the IP address of tunnel router 321 is
10.0.0.2, the IP address of tunnel router 322 is 11.0.0.2, and the IP address of tunnel router 323 is 12.0.0.2.It is if empty
Plan machine 312 moves to tunnel router 322 from tunnel router 321, and tunnel router 321 is the first tunnel router, tunnel
Router 322 is the second tunnel router.
Under above-mentioned application scenarios, then the virtual machine migration method may comprise steps of：
Step 1, when virtual machine 311 is reached the standard grade in tunnel router 321, (i.e. tunnel router 321 is received and tunnel is route
The request that the virtual machine 311 that device 321 connects is sent) when, then tunnel router 321 can record in EID/RLOC list items
4.1.1.1,10.0.0.2 and interface A corresponding relation, as shown in table 1.
Similarly, when virtual machine 312 is reached the standard grade in tunnel router 321, then tunnel router 321 can be in EID/RLOC tables
5.1.1.1,10.0.0.2 and interface B corresponding relation are recorded in, as shown in table 1.
Table 1
Step 2, tunnel router 321 send the 4th message to mapping server, wherein, the 4th message can carry
4.1.1.1 with 10.0.0.2 corresponding relation, 5.1.1.1 and 10.0.0.2 corresponding relation.
Step 3, mapping server after the 4th message is received, in EID/RLOC list items record 4.1.1.1 with
10.0.0.2 the corresponding relation of corresponding relation, 5.1.1.1 and 10.0.0.2, as shown in table 2.
Table 2
| EID | RLOC |
| 4.1.1.1 | 10.0.0.2 |
| 5.1.1.1 | 10.0.0.2 |
Step 4, mapping server send the second message, second message to tunnel router 322, tunnel router 323
The corresponding relation of 4.1.1.1 and 10.0.0.2 corresponding relation, 5.1.1.1 and 10.0.0.2 can be carried.
Wherein, the 4.1.1.1 and 10.0.0.2 corresponding relation that are sent for tunnel router 321,5.1.1.1 with
10.0.0.2 corresponding relation, mapping server can send second to each tunnel router outside tunnel router 321
Message, i.e., the second message is sent to tunnel router 322, tunnel router 323.
In one example, for the transmission opportunity of the second message, mapping server can tunnel router 322 and/
Or during the registration of tunnel router 323, the second message is sent to tunnel router 322 and/or tunnel router 323.Or reflect
Penetrate server can when EID and RLOC corresponding relation changes,
Second message is sent to tunnel router 322 and/or tunnel router 323.Or mapping server can week
Second message is sent to tunnel router 322 and/or tunnel router 323 by phase property.Or mapping server can receive
During to the message of tunnel router 322 and/or tunnel router 323, by the second message be sent to tunnel router 322 and/or
Tunnel router 323.This transmission opportunity is not limited.
Step 5, tunnel router 322 record 4.1.1.1 and 10.0.0.2 in the mapping table after the second message is received
Corresponding relation, 5.1.1.1 and 10.0.0.2 corresponding relation, as shown in table 3.Tunnel router 323 records in mapping table
4.1.1.1 with 10.0.0.2 corresponding relation, 5.1.1.1 and 10.0.0.2 corresponding relation.
Table 3
Said process is the handling process of virtual machine 311, virtual machine 312 when tunnel router 321 is reached the standard grade, i.e. virtual machine
312 move to tunnel router 322 from tunnel router 321 before handling process, when virtual machine 312 is from tunnel router
321 when moving to tunnel router 322, can also comprise the following steps：
Step 6, reached the standard grade in tunnel router 322 (it is, virtual machine 312 is from tunnel router when virtual machine 312
321 move to tunnel router 322) when, then tunnel router 322 can be recorded in EID/RLOC list items 5.1.1.1,
11.0.0.2 with interface C corresponding relation, an example as shown in table 4.
Table 4
| EID | RLOC | Outgoing interface |
| 5.1.1.1 | 11.0.0.2 | Interface C |
The mapping table of step 7, tunnel router 322 shown in by 5.1.1.1 inquiry tables 3, is obtained corresponding with 5.1.1.1
10.0.0.2, i.e., virtual machine 312 is to move to tunnel router 322 from other tunnel routers.
Step 8, tunnel router 322 according to 10.0.0.2 send first message, will the first message be sent to
10.0.0.2 corresponding tunnel router 321.The first message can carry the 5.1.1.1 of virtual machine 312, tunnel router
322 11.0.0.2, to represent that virtual machine 312 has migrated to tunnel router 322.
Step 9, tunnel router 321 send detection message after first message is received, to virtual machine 312.
For example, tunnel router 321 obtains outgoing interface to connect by the EID/RLOC list items shown in 5.1.1.1 inquiry tables 1
Mouth B, and detection message (such as ICMP message) is sent to virtual machine 312 by interface B.
In one example, after detection message is sent to virtual machine 312, tunnel router 321 can also set one
Timer.If not receiving the response message for the detection message in preset time, step 10 is performed；If when default
The interior response message received for the detection message, then perform step 15.
Step 10, tunnel router 321 perceive virtual machine 312 and left, and according to tunnel router 322
11.0.0.2 change forwarding-table item corresponding to virtual machine 312.It is for example, it is assumed that corresponding with 11.0.0.2 on tunnel router 321
Interface is interface D, i.e. the IP address of interface D next-hop is 11.0.0.2, that is to say, that tunnel router 321 passes through interface D
Tunnel router 322 is connected, then the outgoing interface of forwarding-table item corresponding to virtual machine 312 can be revised as by tunnel router 321
Interface D, as shown in table 5.
Table 5
| EID | RLOC | Outgoing interface |
| 4.1.1.1 | 10.0.0.2 | Interface A |
| 5.1.1.1 | 10.0.0.2 | Interface D |
The 11.0.0.2 that step 11, tunnel router 321 carry according to the first message, to tunnel corresponding to 11.0.0.2
Router 322 sends the confirmation response message (such as ACK message) for the first message.
Step 12, tunnel router 322 then can send the after the confirmation response message is received to mapping server
Three message, the 3rd message can carry 5.1.1.1 and 11.0.0.2 corresponding relation.
Wherein, tunnel router 322 to tunnel router 321 after first message is sent, if being inscribed in preset time
Receive the confirmation response message for the first message of the transmission of tunnel router 321, it is determined that virtual machine 312 is from tunnel
Router 321 moves to tunnel router 322, and can send the 3rd message to mapping server, and the 3rd message can be taken
Corresponding relation with 5.1.1.1 and 11.0.0.2.
Step 13, mapping server are repaiied after the 3rd message is received according to 5.1.1.1 and 11.0.0.2 corresponding relation
Change the EID/RLOC list items shown in table 2, amended EID/RLOC list items as shown in table 6.
Table 6
| EID | RLOC |
| 4.1.1.1 | 10.0.0.2 |
| 5.1.1.1 | 11.0.0.2 |
Step 14, mapping server are according to traditional process, and 5.1.1.1 flows will be sent to by triggering each tunnel router, hair
11.0.0.2 is given, without being destined to 10.0.0.2, this process is no longer repeated in detail.
Step 15, tunnel router 321 perceive virtual machine 312 and still reached the standard grade in tunnel router 321, retain 312 correspondences
Forwarding-table item, according to the first message carry 11.0.0.2, to tunnel router corresponding to 11.0.0.2 322 send be directed to
The first message denies response message (such as NACK message), or, refuse to send to tunnel router 322 and be directed to first message
Response message (not returning to any response message).
Step 16, tunnel router 322 to tunnel router 321 after first message is sent, if in preset time not
The confirmation response message for the first message of the transmission of tunnel router 321 is received, then tunnel router 322 determines virtually
Machine 312 does not move to tunnel router 322 from tunnel router 321.
Step 17, tunnel router 322 can from the EID/RLOC list items shown in table 4, delete 5.1.1.1,
11.0.0.2 with interface C corresponding relation, the EID/RLOC list items after being deleted.
Based on the design same with the above method, a kind of virtual machine (vm) migration device is additionally provided in the embodiment of the present disclosure, should
For the second tunnel router, as shown in figure 4, the structure chart for the virtual machine (vm) migration device.
Logging modle 401, for recording the first address and the second of the first tunnel router of virtual machine in the mapping table
The corresponding relation of address；First tunnel router is the tunnel router accessed before the virtual machine (vm) migration；
Enquiry module 402, for when the virtual machine is reached the standard grade in second tunnel router, then by described virtual
Mapping table described in first address lookup of machine；
Sending module 403, for when the second address corresponding with first address in the mapping table be present, according to
Second address sends first message to the first tunnel router, and the first message carries second tunnel router
3rd address, so that the first tunnel router is when perceiving the virtual machine and leaving, according to second tunnel router
3rd address, change forwarding-table item corresponding to the virtual machine.
In one example, the logging modle 401, specifically for record in the mapping table the first address of virtual machine with
During the two address corresponding relation of first tunnel router, when the first tunnel router is according to the void being connected with itself
The request of plan machine, the first address and the second address of first tunnel router of the virtual machine are sent to mapping server
Afterwards, the second message that mapping server is sent is received, second message carries the first address of the virtual machine and described the
Second address of one tunnel router；First address and the two address corresponding relation are recorded in the mapping table.
In one example, the virtual machine (vm) migration device also includes (not embodied in figure)：
Determining module, for sending the to the first tunnel router according to second address in the sending module 403
After one message, if not receiving the confirmation response message for the first message in preset time, it is determined that the void
Plan machine does not move to second tunnel router from first tunnel router；If received in preset time for institute
State the confirmation response message of first message, it is determined that the virtual machine moves to second tunnel from first tunnel router
Road router.
The second tunnel router provided in the embodiment of the present disclosure, for hardware view, its hardware structure schematic diagram tool
Body may refer to shown in Fig. 5.Including：Machinable medium and processor, wherein：
Machinable medium：Store instruction code.
Processor：Communicate, stored in reading and execution machinable medium described with machinable medium
Instruction code, realize that virtual machine (vm) migration disclosed in disclosure above-mentioned example operates.
Here, machinable medium can be any electronics, magnetic, optics or other physical storage devices, can be with
Comprising or storage information, such as executable instruction, data, etc..For example, machinable medium can be：RAM(Radom
Access Memory, random access memory), volatile memory, nonvolatile memory, flash memory, memory driver is (as hard
Disk drive), solid state hard disc, any kind of storage dish (such as CD, dvd), either similar storage medium or they
Combination.
Based on the design same with the above method, a kind of virtual machine (vm) migration device is additionally provided in the embodiment of the present disclosure, should
For the first tunnel router, as shown in fig. 6, the structure chart for the virtual machine (vm) migration device.
Receiving module 601, the first message sent for receiving the second tunnel router；The first message carries the second tunnel
The 3rd address, the first address of the virtual machine reached the standard grade in the second tunnel router of road router；
Sending module 602, for corresponding when the virtual machine locally be present according to the determination of the first address of the virtual machine
Forwarding-table item when, then according to the first address of virtual machine to the virtual machine send detection message；
Processing module 603, for when do not received in preset time for it is described detection message response message when, then
Perceive the virtual machine to leave, and according to the 3rd address of second tunnel router, change corresponding to the virtual machine
Forwarding-table item.
In one example, the sending module 602, it is additionally operable to be route according to second tunnel in the processing module
3rd address of device, after changing forwarding-table item corresponding to the virtual machine, sent to second tunnel router and be directed to institute
State the confirmation response message of first message；
The sending module 602, it is additionally operable to after detection message is sent to the virtual machine, if being inscribed in preset time
The response message for the detection message is received, then perceives the virtual machine and is reached the standard grade in first tunnel router, and
The response message of denying for the first message is sent to second tunnel router, or, refuse to second tunnel
Road router sends the response message for the first message.
In one example, the processing module 603, specifically on the 3rd ground according to second tunnel router
Location, during changing forwarding-table item corresponding to the virtual machine, according to the 3rd address of second tunnel router, it is determined that
The second interface being connected on first tunnel router with second tunnel router；By forwarding corresponding to the virtual machine
The outgoing interface of list item is revised as the second interface.
The first tunnel router provided in the embodiment of the present disclosure, for hardware view, its hardware structure schematic diagram tool
Body may refer to shown in Fig. 7.Including：Machinable medium and processor, wherein：
Machinable medium：Store instruction code.
Processor：Communicate, stored in reading and execution machinable medium described with machinable medium
Instruction code, realize that virtual machine (vm) migration disclosed in disclosure above-mentioned example operates.
Here, machinable medium can be any electronics, magnetic, optics or other physical storage devices, can be with
Comprising or storage information, such as executable instruction, data, etc..For example, machinable medium can be：RAM(Radom
Access Memory, random access memory), volatile memory, nonvolatile memory, flash memory, memory driver is (as hard
Disk drive), solid state hard disc, any kind of storage dish (such as CD, dvd), either similar storage medium or they
Combination.
Based on the design same with the above method, a kind of machinable medium is additionally provided in the embodiment of the present disclosure,
The machinable medium is applied to the second tunnel router, and some calculating are stored with the machinable medium
Machine instructs, and the computer instruction is handled as follows when being performed：
Two address corresponding relation of first address with the first tunnel router of virtual machine is recorded in the mapping table；Its
In, first tunnel router is the tunnel router accessed before the virtual machine (vm) migration；
When the virtual machine is reached the standard grade in second tunnel router, pass through the first address lookup institute of the virtual machine
State mapping table；If the second address corresponding with first address in the mapping table be present, according to second address to
First tunnel router sends first message, and the first message carries the 3rd address of second tunnel router, so that
First tunnel router is when perceiving the virtual machine and leaving, according to the 3rd address of second tunnel router,
Change forwarding-table item corresponding to the virtual machine.
Based on the design same with the above method, a kind of machinable medium is additionally provided in the embodiment of the present disclosure,
The machinable medium is applied to the first tunnel router, and some calculating are stored with the machinable medium
Machine instructs, and the computer instruction is handled as follows when being performed：
Receive the first message of the second tunnel router transmission；The first message carries second tunnel router
3rd address, the first address of the virtual machine reached the standard grade in second tunnel router；
If the forwarding-table item according to corresponding to the determination of the first address of the virtual machine locally has the virtual machine, basis
First address of the virtual machine sends detection message to the virtual machine, if not received for the inspection in preset time
The response message of message is surveyed, then perceives the virtual machine and leaves, and according to the 3rd address of second tunnel router, repair
Change forwarding-table item corresponding to the virtual machine.
System, device, module or the unit that above-described embodiment illustrates, it can specifically be realized by computer chip or entity,
Or realized by the product with certain function.One kind typically realizes that equipment is computer, and the concrete form of computer can
To be personal computer, laptop computer, cell phone, camera phone, smart phone, personal digital assistant, media play
In device, navigation equipment, E-mail receiver/send equipment, game console, tablet PC, wearable device or these equipment
The combination of any several equipment.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware when open.
It should be understood by those skilled in the art that, embodiment of the disclosure can be provided as method, system or computer program
Product.Therefore, the disclosure can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the embodiment of the present disclosure can use wherein includes computer usable program code in one or more
The computer that computer-usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of program product.
The disclosure is with reference to the flow according to the method for the embodiment of the present disclosure, equipment (system) and computer program product
Figure and/or block diagram describe.It is generally understood that by each in computer program instructions implementation process figure and/or block diagram
Flow and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer journeys can be provided
Sequence instruction to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices processor with
Produce a machine so that produce and be used for by the instruction of computer or the computing device of other programmable data processing devices
Realize the dress for the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
Put.
Moreover, these computer program instructions can also be stored in computer or other programmable datas can be guided to handle and set
In the standby computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory produces
Manufacture including command device, the command device are realized in one flow of flow chart or multiple flows and/or block diagram one
The function of being specified in individual square frame or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer
Or the instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram
The step of function of being specified in one square frame or multiple square frames.
It will be understood by those skilled in the art that embodiment of the disclosure can be provided as method, system or computer program product.
Therefore, the disclosure can use the implementation in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
The form of example.Moreover, the disclosure can use wherein includes the calculating of computer usable program code at one or more
The computer that machine usable storage medium is implemented on (can include but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of program product.
Embodiment of the disclosure is the foregoing is only, is not limited to the disclosure.For those skilled in the art
For, the disclosure can have various modifications and variations.All any modifications made within the spirit and principle of the disclosure, it is equal
Replace, improve etc., it should be included within the right of the disclosure.
Claims (14)
- A kind of 1. virtual machine migration method, it is characterised in that applied to the second tunnel router, including：Two address corresponding relation of first address with the first tunnel router of virtual machine is recorded in the mapping table；Wherein, First tunnel router is the tunnel router accessed before the virtual machine (vm) migration；When the virtual machine is reached the standard grade in second tunnel router, by being reflected described in the first address lookup of the virtual machine Firing table；If the second address corresponding with first address in the mapping table be present, according to second address to first Tunnel router sends first message, and the first message carries the 3rd address of second tunnel router, so that described First tunnel router is when perceiving the virtual machine and leaving, according to the 3rd address of second tunnel router, modification Forwarding-table item corresponding to the virtual machine.
- 2. according to the method for claim 1, it is characterised in that it is described in the mapping table record virtual machine the first address with The process of the two address corresponding relation of first tunnel router, is specifically included：When the first tunnel router is according to the request for the virtual machine being connected with itself, the virtual machine is sent to mapping server Behind second address of the first address and first tunnel router, the second message that mapping server is sent is received, described the Two message carry the first address of the virtual machine and the second address of first tunnel router；Institute is recorded in the mapping table State the first address and the two address corresponding relation.
- 3. according to the method for claim 1, it is characterised in that it is described according to second address to the first tunnel router After sending first message, methods described also includes：If do not receive the confirmation response message for the first message in preset time, it is determined that the virtual machine not from First tunnel router moves to second tunnel router；If the confirmation response message for the first message is received in preset time, it is determined that the virtual machine is from described First tunnel router moves to second tunnel router.
- A kind of 4. virtual machine migration method, it is characterised in that applied to the first tunnel router, including：Receive the first message of the second tunnel router transmission；The first message carries the 3rd of second tunnel router Address, the first address of the virtual machine reached the standard grade in second tunnel router；If the forwarding-table item according to corresponding to the determination of the first address of the virtual machine locally has the virtual machine, according to First address of virtual machine sends detection message to the virtual machine, disappears if not received in preset time for the detection The response message of breath, then perceive the virtual machine and leave, and according to the 3rd address of second tunnel router, change institute State forwarding-table item corresponding to virtual machine.
- 5. according to the method for claim 4, it is characterised in that the 3rd ground according to second tunnel router Location, after changing forwarding-table item corresponding to the virtual machine, methods described also includes：Pin is sent to second tunnel router Confirmation response message to the first message；After the transmission detection message to the virtual machine, methods described also includes：It is directed to if being received in preset time The response message of the detection message, then perceive the virtual machine and reached the standard grade in first tunnel router, and to described the Two tunnel routers send the response message of denying for the first message, or, refuse to second tunnel router Send the response message for the first message.
- 6. the method according to claim 4 or 5, it is characterised in that described according to the 3rd of second tunnel router Address, the process of forwarding-table item corresponding to the virtual machine is changed, is specifically included：According to the 3rd address of second tunnel router, determine on first tunnel router with second tunnel road The second interface connected by device；The outgoing interface of forwarding-table item corresponding to the virtual machine is revised as the second interface.
- A kind of 7. virtual machine (vm) migration device, it is characterised in that applied to the second tunnel router, including：Logging modle, for recording the first address of virtual machine and the first tunnel router in the mapping table are two address right It should be related to；First tunnel router is the tunnel router accessed before the virtual machine (vm) migration；Enquiry module, for when the virtual machine is reached the standard grade in second tunnel router, then passing through the of the virtual machine Mapping table described in one address lookup；Sending module, for when the second address corresponding with first address in the mapping table be present, according to described Double-address sends first message to the first tunnel router, and the first message carries the 3rd ground of second tunnel router Location, so that first tunnel router is when perceiving the virtual machine and leaving, according to the of second tunnel router Three addresses, change forwarding-table item corresponding to the virtual machine.
- 8. device according to claim 7, it is characterised in thatThe logging modle, the first address and the second of the first tunnel router specifically for recording virtual machine in the mapping table During the corresponding relation of address, when the first tunnel router is according to the request for the virtual machine being connected with itself, taken to mapping It is engaged in behind the first address of the device transmission virtual machine and the second address of first tunnel router, receives mapping server hair The second message sent, second message carry the first address of the virtual machine and the second ground of first tunnel router Location；First address and the two address corresponding relation are recorded in the mapping table.
- 9. device according to claim 7, it is characterised in that also include：Determining module, for the sending module according to second address to the first tunnel router send first message it Afterwards, if not receiving the confirmation response message for the first message in preset time, it is determined that the virtual machine not from First tunnel router moves to second tunnel router；Disappear if being received in preset time for described first The confirmation response message of breath, it is determined that the virtual machine moves to the second tunnel route from first tunnel router Device.
- A kind of 10. virtual machine (vm) migration device, it is characterised in that applied to the first tunnel router, including：Receiving module, the first message sent for receiving the second tunnel router；The first message carries the second tunnel road By the 3rd address of device, the first address of the virtual machine reached the standard grade in the second tunnel router；Sending module, for working as the forward table according to corresponding to the determination of the first address of the virtual machine locally has the virtual machine Xiang Shi, then detection message is sent to the virtual machine according to the first address of the virtual machine；Processing module, for when not receiving the response message for the detection message in preset time, then perceiving The virtual machine leaves, and according to the 3rd address of second tunnel router, changes forward table corresponding to the virtual machine .
- 11. device according to claim 10, it is characterised in thatThe sending module, the 3rd address according to second tunnel router in the processing module is additionally operable to, changes institute After stating forwarding-table item corresponding to virtual machine, the confirmation response for the first message is sent to second tunnel router Message；The sending module, it is additionally operable to after detection message is sent to the virtual machine, if receiving pin in preset time To the response message of the detection message, then perceive the virtual machine and reached the standard grade in first tunnel router, and to described Second tunnel router sends the response message of denying for the first message, or, refuse to route to second tunnel Device sends the response message for the first message.
- 12. the device according to claim 10 or 11, it is characterised in thatThe processing module, specifically in the 3rd address according to second tunnel router, changing the virtual machine pair During the forwarding-table item answered, according to the 3rd address of second tunnel router, first tunnel router is determined The upper second interface being connected with second tunnel router；The outgoing interface of forwarding-table item corresponding to the virtual machine is revised as the second interface.
- 13. a kind of machinable medium, it is characterised in that the machinable medium is route applied to the second tunnel Device, some computer instructions are stored with the machinable medium, carried out when the computer instruction is performed as follows Processing：Two address corresponding relation of first address with the first tunnel router of virtual machine is recorded in the mapping table；Wherein, First tunnel router is the tunnel router accessed before the virtual machine (vm) migration；When the virtual machine is reached the standard grade in second tunnel router, by being reflected described in the first address lookup of the virtual machine Firing table；If the second address corresponding with first address in the mapping table be present, according to second address to first Tunnel router sends first message, and the first message carries the 3rd address of second tunnel router, so that described First tunnel router is when perceiving the virtual machine and leaving, according to the 3rd address of second tunnel router, modification Forwarding-table item corresponding to the virtual machine.
- 14. a kind of machinable medium, it is characterised in that the machinable medium is route applied to the first tunnel Device, some computer instructions are stored with the machinable medium, carried out when the computer instruction is performed as follows Processing：Receive the first message of the second tunnel router transmission；The first message carries the 3rd of second tunnel router Address, the first address of the virtual machine reached the standard grade in second tunnel router；If the forwarding-table item according to corresponding to the determination of the first address of the virtual machine locally has the virtual machine, according to First address of virtual machine sends detection message to the virtual machine, disappears if not received in preset time for the detection The response message of breath, then perceive the virtual machine and leave, and according to the 3rd address of second tunnel router, change institute State forwarding-table item corresponding to virtual machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476005.5A CN107547400B (en) | 2017-06-21 | 2017-06-21 | Virtual machine migration method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476005.5A CN107547400B (en) | 2017-06-21 | 2017-06-21 | Virtual machine migration method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107547400A true CN107547400A (en) | 2018-01-05 |
| CN107547400B CN107547400B (en) | 2020-05-12 |
Family
ID=60970305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710476005.5A Active CN107547400B (en) | 2017-06-21 | 2017-06-21 | Virtual machine migration method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107547400B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106161439A (en) * | 2016-06-30 | 2016-11-23 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN109189549A (en) * | 2018-08-01 | 2019-01-11 | 新华三技术有限公司 | Virtual machine migration method and device |
| CN111698164A (en) * | 2020-06-11 | 2020-09-22 | 北京金山云网络技术有限公司 | Network routing method and device of virtual machine and management server |
| WO2022001666A1 (en) * | 2020-06-30 | 2022-01-06 | 华为技术有限公司 | Method for creating vxlan tunnel and related devices |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150074741A1 (en) * | 2013-09-06 | 2015-03-12 | Cisco Technology, Inc. | Method and system for extending network resources campus-wide based on user role and location |
| CN104780109A (en) * | 2015-04-27 | 2015-07-15 | 杭州华三通信技术有限公司 | Virtual machine migration method and device |
| CN104780102A (en) * | 2015-04-07 | 2015-07-15 | 杭州华三通信技术有限公司 | Information processing method and device for virtual machine migration in LISP (locator identity separation protocol) network |
| CN105591921A (en) * | 2015-09-28 | 2016-05-18 | 杭州华三通信技术有限公司 | Method and device for determination of host migration state |
| CN105591935A (en) * | 2015-08-26 | 2016-05-18 | 杭州华三通信技术有限公司 | Method and device for updating EID-RLOC mapping relation after virtual machine migration |
-
2017
- 2017-06-21 CN CN201710476005.5A patent/CN107547400B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150074741A1 (en) * | 2013-09-06 | 2015-03-12 | Cisco Technology, Inc. | Method and system for extending network resources campus-wide based on user role and location |
| CN104780102A (en) * | 2015-04-07 | 2015-07-15 | 杭州华三通信技术有限公司 | Information processing method and device for virtual machine migration in LISP (locator identity separation protocol) network |
| CN104780109A (en) * | 2015-04-27 | 2015-07-15 | 杭州华三通信技术有限公司 | Virtual machine migration method and device |
| CN105591935A (en) * | 2015-08-26 | 2016-05-18 | 杭州华三通信技术有限公司 | Method and device for updating EID-RLOC mapping relation after virtual machine migration |
| CN105591921A (en) * | 2015-09-28 | 2016-05-18 | 杭州华三通信技术有限公司 | Method and device for determination of host migration state |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106161439A (en) * | 2016-06-30 | 2016-11-23 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN106161439B (en) * | 2016-06-30 | 2019-11-26 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN109189549A (en) * | 2018-08-01 | 2019-01-11 | 新华三技术有限公司 | Virtual machine migration method and device |
| CN111698164A (en) * | 2020-06-11 | 2020-09-22 | 北京金山云网络技术有限公司 | Network routing method and device of virtual machine and management server |
| CN111698164B (en) * | 2020-06-11 | 2021-11-19 | 北京金山云网络技术有限公司 | Network routing method and device of virtual machine and management server |
| WO2022001666A1 (en) * | 2020-06-30 | 2022-01-06 | 华为技术有限公司 | Method for creating vxlan tunnel and related devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107547400B (en) | 2020-05-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107547400A (en) | A kind of virtual machine migration method and device | |
| CN106998297B (en) | A kind of virtual machine migration method and device | |
| KR101723098B1 (en) | Network control security | |
| EP2387273B1 (en) | Method of communication for a terminal and a hub in a content centric network | |
| CN108259347A (en) | A kind of message transmitting method and device | |
| WO2015038837A1 (en) | Virtual network routing | |
| CN108718278A (en) | A kind of message transmitting method and device | |
| CN108092984A (en) | A kind of authorization method of applications client, device and equipment | |
| US10169529B2 (en) | Method and apparatus for determining a road network partitioning border line | |
| CN113326101B (en) | Thermal migration method, device and equipment based on remote direct data storage | |
| CN113014689B (en) | Method and device for network address translation | |
| CN108259346A (en) | A kind of equivalent route item establishing method and device | |
| CN104994022B (en) | A kind of method and business board of message transmissions | |
| CN109412949A (en) | A kind of data message transmission method and device | |
| CN108683722A (en) | A kind of method of data transmission, ESB platforms and client | |
| CN105591935B (en) | The update method and device of EID-RLOC mapping relations after a kind of virtual machine (vm) migration | |
| CN108234422A (en) | Resource regulating method and device | |
| CN104780110B (en) | Message transmitting method and equipment during a kind of virtual machine (vm) migration | |
| CN106878052B (en) | User migration method and device | |
| CN109728972B (en) | Network connection detection method and device | |
| CN108418752A (en) | A kind of creation method and device of aggregation group | |
| CN105933398A (en) | Access request forwarding method and system in content distribution network | |
| US11611632B2 (en) | Cloud to on-premise port forwarding with IP address bound to loopback alias | |
| US11038798B2 (en) | Storing data in association with a key within a hash table and retrieving the data from the hash table using the key | |
| CN104539538A (en) | IP address matching method and data package forwarding method of router |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230529 Address after: 310052 11th Floor, 466 Changhe Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: H3C INFORMATION TECHNOLOGY Co.,Ltd. Address before: 310052 Changhe Road, Binjiang District, Hangzhou, Zhejiang Province, No. 466 Patentee before: NEW H3C TECHNOLOGIES Co.,Ltd. |