Re: [Engine-devel] Network Quality of Service 3.3 - Feature design
Hi,
answers inline
Thanks,
Ofri
----- Original Message -----
From: "Itamar Heim" <iheim(a)redhat.com>
To: "Ofri Masad" <omasad(a)redhat.com>
Cc: "engine-devel" <engine-devel(a)ovirt.org>
Sent: Sunday, June 2, 2013 10:34:47 AM
Subject: Re: [Engine-devel] Network Quality of Service 3.3 - Feature design
On 06/02/2013 09:58 AM, Ofri Masad wrote:
> Hi all,
>
> A new Feature page for "Network Quality of Service" feature was
published.
>
> http://www.ovirt.org/Features/Design/Network_QoS
>
> You are more than welcome to share you thoughts and insights.
>
> Thanks,
> Ofri.
> _______________________________________________
> Engine-devel mailing list
> Engine-devel(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
>
some questions:
1. "In the Add/Edit Network two parts will be added - one for the QoS
properties of the network, the other for the QoS properties preset for
VNICs attached to the network."
so the first part of QoS for network is the limit of the logical network
on the host for all vnic's associated to it, compared to other logical
networks?
Exactly. first part is the network level limitation.
2. "Only a user permitted to edit the network may edit the QoS
properties in the network dialog or override the QoS properties in the
VNIC dialog. "
why would a network operator (having permissions on networks) have
permissions on specific VM's vnic's?
probably a special permission to edit network QoS at vm level is needed?
True. we will limit the VNIC QoS editing to a user which holds both UserVmManager and
NetworkAdmin permissions.
This also the case for editing port mirroring for vnic.
3. "outbound_burst Bigint "
just wondering - what numbers do you expect here that Integer like the
average and peak is not enough?
the units for the "burst" parameter are Mb (Mega bits). so, if we would like to
allow burst of over 4GB (Giga byte) we will need Bigint.
4. "Old libvirt versions that have the global driver lock may
have
performance problems. It would be nice to check what version of libvirt
is this going to run on"
old versions but 1.0.1 is required, does 1.0.1 have this issue?
No. ver 1.0.1 does not have that problem. this sentence was left there by mistake and will
be removed.
5. behavior with provider networks (quantum)?
Traffic shaping using the Network QoS feature will be available only for oVirt networks at
this stage.
Thanks,
Itamar