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https://issues.apache.org/jira/browse/CLOUDSTACK-4550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13814945#comment-13814945
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hayou commented on CLOUDSTACK-4550:
-----------------------------------
not really Wei Zhou ;).
I have the same error on my management :
{quote}
2013-11-06 16:02:15,989 ERROR [cloud.vm.VirtualMachineManagerImpl]
(Job-Executor-163:job-399 = [ a47926cf-d712-4bc1-926b-3a8ac43d9e40 ]) Unable to
migrate due to Cannot get interface MTU on 'brbond0.110-110': No such device
{quote}
I type /usr/bin/cloudstack-agent-upgrade on my 2 hypervisors then reboot.
Here is my agent properties :
{quote}
guest.network.device=cloudVirBr100
workers=5
private.network.device=cloudVirBr100
port=8250
resource=com.cloud.hypervisor.kvm.resource.LibvirtComputingResource
pod=1
network.bridge.name.schema=3.0
zone=1
guid=8b928279-d5af-30a9-bc27-6e872a065372
cluster=1
public.network.device=cloudVirBrPub
local.storage.uuid=9342a19c-7822-4a4b-9e83-543742528a81
domr.scripts.dir=scripts/network/domr/kvm
host=172.....
LibvirtComputingResource.id=4
{quote}
> [DOC] When upgrading KVM agents to 4.2(.1?) perform bridge renaming to have
> migration work
> ------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-4550
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4550
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Doc, KVM, Upgrade
> Affects Versions: 4.2.0
> Reporter: Prasanna Santhanam
> Priority: Critical
> Attachments: bridge.jpg
>
>
> See CLOUDSTACK-4405 for the original bug. This is the doc to be prepared as
> part of upgrade in release notes once the fix for the bug is verified to work
> After network bridges being renamed from cloudVirBrVLAN to brem1-VLAN to
> support the same VLAN on multiple physical networks the migration of VMs from
> hosts prior the upgrade to the ones added after the upgrade will fail.
> In order to fix this rename the bridges is required to allow migration to
> work.
> This can be done by running the cloudstack-agent-upgrade script. The original
> bug is still undergoing testing, but these are the initial instructions
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