Re: [ovirt-users] VDSM hook for setting DSCP bits?
Once upon a time, Dan Yasny <dyasny(a)gmail.com> said:
shouldn't be hard to do. Can you provide the details of what you
need to
happen to the VM exactly?
- domxml changes
- other host level changes
- whether the VM should be able to live migrate
It looks like libvirt supports setting up DSCP bits with nwfilter, per:
https://libvirt.org/formatnwfilter.html
I will play with this some to see exactly how to use it (haven't tried
it before). If that's the case, there shouldn't be any host-level
changes required. I would want the VM to be able to live migrate still
(with the DSCP still applied).
I'll test this out on a bare libvirt VM and see if that'll do the job,
and report back with what XML is needed.
Thanks.
On Tue, Feb 10, 2015 at 2:34 PM, Chris Adams <cma(a)cmadams.net>
wrote:
> Is there a VDSM hook available that can set DSCP bits on a VM's network
> interface? I want to do some QoS for some traffic across my network,
> and it would be easier if I could set DSCP bits outside the VM.
>
> I see vdsm-hook-qos, but that appears to just set bandwidth control in
> the Linux host, not DSCP on packets for the rest of the network.
> --
> Chris Adams <cma(a)cmadams.net>
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