[ovirt-users] mode 4 bonding for VMs with NetworkManager anyone?

Gianluca Cecchi gianluca.cecchi at gmail.com
Wed Sep 13 10:23:32 UTC 2017


Hello,
I'm testing ovirt node, both 4.1.5 and 4.1.6rc2.
I see that in both versions the network stack is configured with
NetworkManager enabled.

With plain CentOS I always disabled NetworkManager and only used classical
network service alone, so I have not background with NM, related to
hypervisor.

I have configured a vlan (untagged) for VMs, using bonding mode=4 (802.3ad).

I have some problems with my VMs: they are reachable from some parts and
not from others.

In parallel I have already asked network guys to crosscheck network
configurations of the datacenter, but I would like to have confirmation
that other ones are already using with success the combination of:

- NetworkManager on hypervisor
- bonding mode = 4 for VMs traffic

Another question for another aspect I never understood: with an environment
in the past (before 3.5 times if I remember well) I used 802.3ad but I had
to set lacp_rate=1 (fast) because I had connection problems with the
default lacp_rate=0 (slow) parameter.
I see that still the default is lacp_rate=0
Could it be the same this time? Is there any reason to set default
lacp_rate=0 in oVirt (or the reverse... ;-)?

Thanks in advance,
Gianluca
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