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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-9362) Migrating a VM using VXLANs and bridges fails
Date Fri, 22 Apr 2016 13:57:12 GMT


ASF GitHub Bot commented on CLOUDSTACK-9362:

Github user swill commented on the pull request:
    @insom, yes @kiwiflyer is correct.  You will need to base your change off the 4.8 branch
and close this PR and open a new PR based off the 4.8 branch.  Thanks for the effort.  :)

> Migrating a VM using VXLANs and bridges fails
> ---------------------------------------------
>                 Key: CLOUDSTACK-9362
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: KVM
>    Affects Versions: 4.6.2, 4.7.1, 4.8.0
>         Environment: Using KVM with VXLANs in Linux bridge devices (not OpenVSwitch)
>            Reporter: Aaron Brady
> The above commit introduces rewriting of bridge device names when migrating a virtual
machine from one host to another. However, it also matches bridges called "brvx-1234" and
rewrites them to (in my case) "brem1-1234" - this doesn't match the bridge name on the destination
and causes the migration to fail with the error:
> error : virNetDevGetMTU:397 : Cannot get interface MTU on 'brem1-1234': No such device
> I have flagged this as major because it's not possible to migrate VMs using VXLANs for
maintenance, which seems important (it's certainly important to me!).

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