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

2017-09-13 Thread Gianluca Cecchi 
On Wed, Sep 13, 2017 at 1:53 PM, Donny Davis  wrote:

> As long as the switch is setup for 802.3AD (LACP) then you should be fine.
> I used the UI to setup my bond's and here is the output from my hypervisor
>
>
OK, thanks.
I suppose bond0 is where you have your lacp bonding
What do you get in output on your node with the command

cat /proc/net/bonding/bond0

?
Could it do any difference to do 802.3ad on a tagged or untagged vlan?
Thanks,
Gianluca
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Re: [ovirt-users] mode 4 bonding for VMs with NetworkManager anyone?

2017-09-13 Thread Donny Davis 
As long as the switch is setup for 802.3AD (LACP) then you should be fine.
I used the UI to setup my bond's and here is the output from my hypervisor

[root@virtnode-3 ~]# systemctl status NetworkManager

● NetworkManager.service - Network Manager

   Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled;
vendor preset: enabled)

   Active: active (running) since Mon 2017-09-11 19:07:06 UTC; 1 day 16h ago

 Docs: man:NetworkManager(8)

 Main PID: 952 (NetworkManager)

   CGroup: /system.slice/NetworkManager.service

   └─952 /usr/sbin/NetworkManager --no-daemon


Sep 11 20:12:15 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160735.0612]
ifcfg-rh: Ignoring connection /etc/sysconfig/network-scripts/ifcfg-storage
(53b19d46-6b08-f...me:storage.

Sep 11 20:12:16 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160736.8563]
device (p3p1): link connected

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.0798]
device (p3p2): link connected

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.0839]
device (bond0): link connected

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.7324]
ifcfg-rh: new connection /etc/sysconfig/network-scripts/ifcfg-bond0.600
(cad7be9f-9e8c-bcab-4...m bond0.600")

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.7324]
ifcfg-rh: Ignoring connection
/etc/sysconfig/network-scripts/ifcfg-bond0.600
(cad7be9f-9e8c-b...me:bond0.600.

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.7533]
manager: (bond0.600): new VLAN device
(/org/freedesktop/NetworkManager/Devices/37)

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.7705]
manager: (storage): new Bridge device
(/org/freedesktop/NetworkManager/Devices/38)

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.7905]
device (bond0.600): link connected

Sep 11 20:12:17 virtnode-3.fortnebula.com NetworkManager[952]: 
[1505160737.8477]
device (storage): link connected

Hint: Some lines were ellipsized, use -l to show in full.

[root@virtnode-3 ~]# rpm -qa vdsm

vdsm-4.19.28-1.el7.centos.x86_64

[root@virtnode-3 ~]#

On Wed, Sep 13, 2017 at 7:46 AM, Gianluca Cecchi 
wrote:

> On Wed, Sep 13, 2017 at 1:43 PM, Donny Davis  wrote:
>
>> Just use the UI to manage your network interfaces.
>>
>>
> Just used and prolems arose...
> hence the question ;-)
>
> In the mean time, as I have no control on network configuration from a
> switch point of view, I have asked network guys to verify.
> My question was to verify that NM + 802.3AD is used ok from others
>
>
>
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Re: [ovirt-users] mode 4 bonding for VMs with NetworkManager anyone?

2017-09-13 Thread Gianluca Cecchi 
On Wed, Sep 13, 2017 at 1:43 PM, Donny Davis  wrote:

> Just use the UI to manage your network interfaces.
>
>
Just used and prolems arose...
hence the question ;-)

In the mean time, as I have no control on network configuration from a
switch point of view, I have asked network guys to verify.
My question was to verify that NM + 802.3AD is used ok from others
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Re: [ovirt-users] mode 4 bonding for VMs with NetworkManager anyone?

2017-09-13 Thread Donny Davis 
Just use the UI to manage your network interfaces.

On Wed, Sep 13, 2017 at 6:23 AM, Gianluca Cecchi 
wrote:

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

2017-09-13 Thread Gianluca Cecchi 
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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