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VM migration method, VM migration system and server

A centralized server and purpose technology, applied in the direction of transmission system, digital transmission system, data exchange through path configuration, etc., can solve the problem of packet loss on the data plane, and achieve the effect of shortening the time for pruning trees

Active Publication Date: 2014-01-15
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the technical problem to be solved by the present invention is to provide a VM migration method, system and server, which can solve the problem of data plane packet loss in the TRILL network caused by the lag of distribution tree pruning

Method used

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  • VM migration method, VM migration system and server
  • VM migration method, VM migration system and server
  • VM migration method, VM migration system and server

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Embodiment Construction

[0027] In the usual technology, after a certain RB receives the CVLAN information flooded by other RBs, it needs to wait for the timer to expire before sending its own CVLAN information and the received CVLAN information flooded by other RBs to its own Neighbors send. Therefore, when the CVLAN changes, the speed at which the RB floods its own CVLAN status through the LSP to the entire network is much slower than the speed at which data plane messages such as CVLAN messages are forwarded.

[0028] For example, a VM is connected to multiple RBs through a Bridge, such as Figure 1a Connect to RB1, RB2, and RB3 through Bridges. If the VM is migrated from RB1, RB2, and RB3, and the destination RB is not limited here, the specific steps for each RB to flood the CVLAN change through the LSP are as follows:

[0029] (1) VMs are migrated from RB1, RB2 and RB3;

[0030] (2) RB1, RB2, and RB3 meet the conditions for deleting the CVLAN used by the VM, and delete the CVLAN used by the VM ...

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Abstract

The invention discloses a VM migration method, a VM migration system and a server. The method comprises the following steps: a centralized server determines first configuration change information of a CVLAN used by a VM on a Bridge Link where a source RB is located before and after VM migration and determines second configuration change information of the CVLAN used by the VM on a Bridge Link where a destination RB is located before and after VM migration; the centralized server determines a pruning tree corresponding to the CVLAN used by the VM according to the first configuration change information and the second configuration change information; and the centralized server sends the pruning tree to the RBs through a network constituted by control ports provided by the RBs. The problem that a data plane message in a TRILL network may suffer from packet loss due to lagging distribution tree pruning can be solved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a virtual machine (VM, Virtual Machine) migration method, system and server. Background technique [0002] Transparent Interconnection of Lots of Links (TRILL) is a Layer 2 interconnection technology, which is mainly used to overcome the lack of scale of the Spanning Tree Protocol (STP). A network device running the TRILL protocol is called a routing bridge (RB, Routing Bridge). [0003] In a common TRILL protocol, each RB stores a topology constructed according to the entire TRILL network, and the topology is called a distribution tree. Each RB in the TRILL network floods its own link state packet (LSP, link state packet) into the TRILL network, and the LSP carries the state of the RB's customer virtual local area network (CVLAN, Customer Virtual Local Area Network), Other RBs in the TRILL network prune the distribution tree stored by themselves according to the CVLAN in the ...

Claims

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Application Information

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IPC IPC(8): H04L12/823H04L12/46H04L47/32
Inventor 康玉东
Owner HUAWEI TECH CO LTD
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