[c-nsp] csr1000v -ports not in order

James Bensley jwbensley at gmail.com
Fri Jun 1 17:11:16 EDT 2018

On 1 June 2018 21:35:22 BST, "Matúš Staudt" <matus.staudt at digmia.com> wrote:
>Hi Adam,
>the ID seems to be the MAC address.
>In our experience, at first boot the VM brings up the interfaces in the
>order they are in the XML file. 
>After that it remembers the MAC-IFName binding - which can create
>"gaps" in your interface name order if you delete a port, then add
>another (as it will get a new random MAC from the hypervisor).
>Our IF definition looks like this:
><interface type='bridge'>      
> <mac address='52:54:00:4f:a1:ed'/>
> <source bridge='br02'/>      
> <model type='virtio'/>     
> <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
>Even when I shuffle them around, the IFs in the VM are correct after a
>Hope this helps.

This is what we do to. Generate the XML from a Jinja2 template, put the MAC address in there and then the interfaces seem to "stick". The example above is for a Linux bridge. This works for us (as in sticky) as well as SR-IOV.


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