[ovirt-users] Issue with a LACP bond interface.

[Yaniv Kaul]

On Thu, Nov 2, 2017 at 3:06 AM, CRiMSON <crimson at unspeakable.org> wrote:

> The config details:
>
> root at lv426 network-scripts]# cat ifcfg-bond0
>
> # Generated by VDSM version 4.19.31-1.el7.centos
>
> DEVICE=bond0
>
> BONDING_OPTS='mode=4 lacp_rate=1 miimon=100 xmit_hash_policy=2'
>
> BRIDGE=ovirtmgmt
>
> ONBOOT=yes
>
> MTU=1500
>
> DEFROUTE=no
>
> NM_CONTROLLED=no
>
> IPV6INIT=no
>
> [root at lv426 network-scripts]# cat ifcfg-eno1
>
> # Generated by VDSM version 4.19.31-1.el7.centos
>
> DEVICE=eno1
>
> MASTER=bond0
>
> SLAVE=yes
>
> ONBOOT=yes
>
> MTU=1500
>
> DEFROUTE=no
>
> NM_CONTROLLED=no
>
> IPV6INIT=no
>
> [root at lv426 network-scripts]# cat ifcfg-enp11s0
>
> # Generated by VDSM version 4.19.31-1.el7.centos
>
> DEVICE=enp11s0
>
> MASTER=bond0
>
> SLAVE=yes
>
> ONBOOT=yes
>
> DEFROUTE=no
>
> NM_CONTROLLED=no
>
> IPV6INIT=no
>
> [root at lv426 network-scripts]# cat ifcfg-enp2s0f0
>
> # Generated by VDSM version 4.19.31-1.el7.centos
>
> DEVICE=enp2s0f0
>
> MASTER=bond0
>
> SLAVE=yes
>
> ONBOOT=yes
>
> MTU=1500
>
> DEFROUTE=no
>
> NM_CONTROLLED=no
>
> IPV6INIT=no
>
> [root at lv426 network-scripts]# cat ifcfg-enp2s0f1
>
> # Generated by VDSM version 4.19.31-1.el7.centos
>
> DEVICE=enp2s0f1
>
> MASTER=bond0
>
> SLAVE=yes
>
> ONBOOT=yes
>
> MTU=1500
>
> DEFROUTE=no
>
> NM_CONTROLLED=no
>
> IPV6INIT=no
>
> [root at lv426 network-scripts]# cat ifcfg-ovirtmgmt
>
> # Generated by VDSM version 4.19.31-1.el7.centos
>
> DEVICE=ovirtmgmt
>
> TYPE=Bridge
>
> DELAY=0
>
> STP=off
>
> ONBOOT=yes
>
> BOOTPROTO=dhcp
>
> MTU=1500
>
> DEFROUTE=yes
>
> NM_CONTROLLED=no
>
> IPV6INIT=no
>
> DNS1=10.100.100.1
>
> DNS2=10.1.2.2
>
> [root at lv426 network-scripts]# cat /proc/net/bonding/bond0 |grep Slave
>
> *Slave* Interface: eno1
>
> *Slave* queue ID: 0
>
> *Slave* Interface: enp2s0f0
>
> *Slave* queue ID: 0
>
> *Slave* Interface: enp2s0f1
>
> *Slave* queue ID: 0
>
> *Slave* Interface: enp11s0
>
> *Slave* queue ID: 0
>
> As you can see by the above all 4 interfaces are configured and up
> properly and working.
>
> I've configured them using the command:
>
>  vdsClient -s 0 setupNetworks bondings='{bond0:{nics:eno1+
> enp11s0+enp2s0f0+enp2s0f1,options:mode=4 lacp_rate=1 miimon=100
> xmit_hash_policy=2}}'
>
>
Why are you using vdsClient to configure the network?
Y.


> It's all good.
>
> But when I reboot interface3 enp11s0 is not part of the bond,
>
> [root at lv426 ~]# cat /proc/net/bonding/bond0 |grep Slave
>
> *Slave* Interface: eno1
>
> *Slave* queue ID: 0
>
> *Slave* Interface: enp2s0f0
>
> *Slave* queue ID: 0
>
> *Slave* Interface: enp2s0f1
>
> *Slave* queue ID: 0
>
> And looks like it's had it's bonding config removed b y VDSM.
>
> [root at lv426 network-scripts]# cat ifcfg-enp11s0
>
> # Generated by VDSM version 4.19.31-1.el7.centos
>
> DEVICE=enp11s0
>
> ONBOOT=yes
>
> MTU=1500
>
> NM_CONTROLLED=no
>
> If I re-=run the vdsClient command and if down/ifup the interface it
> happily rejoins the bond and carries on working perfectly.
>
> For the life of me I can't figure out what I'm missing / done wrong.
>
>
>
>
>
>
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