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Virtual site associating method and device during virtual site migration
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A virtual site and de-association technology, applied in the field of data communication, can solve problems such as inability to complete the migration process, virtual site migration confusion, etc.
Active Publication Date: 2013-06-05
WENZHOU UNIVERSITY
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[0020] However, if the virtual site is migrated on a different downlink relay port (DRP, Downlink Relay Port) on an ER (VEB or VEPA), that is, the new and old virtual sites will correspond to the same SBP port, and the SBP port cannot be identified at this time When the VSI of the new virtual site is still the VSI of the old virtual site, and their VDP association and disassociation are applied to the same SBP port, the migration of the virtual site will cause confusion, and the above normal migration process cannot be completed
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Embodiment 1
[0067] The specific implementation process of Embodiment 1 is as follows: image 3 As shown, it mainly includes the following steps:
[0068] In step 301, the bridge receives a pre-association, association or disassociation VDP message from a virtual site.
[0069] The destination virtual site in the migration process sends pre-association and association VDP messages to the bridge, and the source virtual site in the migration process sends a VDP message for disassociation operation to the bridge.
[0070] Step 302, identify whether the value of the migration identifier or the suspension identifier carried in the VDP message is true, if yes, execute step 303; if no, end the process.
[0071] The value of the migration flag is 1 or TRUE (ie M=1 or TRUE), which means it is true; the value of the suspension flag is 1 or TRUE (ie S=1 or TRUE), which means it is true.
[0072] Step 303, judge whether the VSI to which the VDP message belongs has been associated with the SBP port c...
Embodiment 3
[0087] The specific implementation process of embodiment three is as follows Figure 5 As shown, it mainly includes the following steps:
[0088] Step 501 , when managing virtual site migration, determine whether the source and destination virtual sites belong to the same ER, if yes, perform step 503 ; if not, perform step 502 .
[0089]The operation of judging whether the source and destination virtual sites belong to the same ER can be implemented by hardware or software (eg hypervisor of the virtual site).
[0090] Step 502 , controlling the source and destination virtual sites to perform a normal virtual site migration process, including pre-association and association operations of the destination virtual site, and de-association operations of the source virtual site. The normal virtual site migration process can be found at figure 2 process shown. After step 502 is executed, the process ends.
[0091] Step 503, judging whether there is a new policy that needs to be ...
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Abstract
The invention discloses a virtual site associating method and a device during virtual site migration. The method includes that when a virtual site migrates, a bridge reserves a latest association state on the bridge of a virtual switch interface (VSI) corresponding to a migration target virtual site; and when the bridge perceives that the migration of the virtual site occurs on the same edge relay (ER), for the information of a decorrelation VSI discovery and configuration protocol (VDP) corresponding to a migration source virtual site, the bridge does not conduct corresponding decorrelation operation. By means of the virtual site associating method and the device during the virtual site migration, that the migration of the virtual site in the migrating process on the same ER can also be completed normally can be guaranteed, and chaos cannot occur.
Description
technical field [0001] The invention relates to the technical field of data communication, in particular to a method and device for associating a virtual site when the virtual site is migrated. Background technique [0002] With the maturity of servervirtualization technology, more and more virtualized server data are deployed in data centers. The appearance of the virtual machine has introduced a virtual Ethernet bridge (VEB, Virtual Ethernet Bridge) into the server network access layer of the data center. The VEB realized by pure software on the server is the so-called virtual switch (vSwitch). vSwitch is currently a mature technical solution with good productization. [0003] While server virtualization in the data center can greatly improve resource utilization and flexibility, it also introduces new management and design challenges. In the physical network, there is a switch to provide network communication, and in the virtual world, there is also a vSwitch, or VEB,...
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