Hello,

CentOS8, oVirt 4.4.1.10-1.el8

I am trying to setup active-backup (mode=1) bonding mode with custom
properties. I have one 10GE switch, the second is just 1G. 10GE link is
the primary one.

cat /etc/sysconfig/network-scripts/ifcfg-bond0

BONDING_OPTS="active_slave=ens5 downdelay=0 miimon=100
mode=active-backup primary=ens5 updelay=0"
TYPE=Bond
BONDING_MASTER=yes
PROXY_METHOD=none
BROWSER_ONLY=no
IPV4_FAILURE_FATAL=no
IPV6_DISABLED=yes
IPV6INIT=no
NAME=bond0
UUID=c054364e-47cf-47ee-a7fc-70b37c9977e7
DEVICE=bond0
ONBOOT=yes
MTU=9000

When I try to add a custom parameter "fail_over_mac=active" (which I
believe could solve my problems with stalled mac addresses in switch's
cam table in case of failover) I got...

"Error while executing action HostSetupNetworks: Unexpected exception"

...in manager. In the engine.log it looks like

2020-07-22 21:20:35,774+02 WARN
[org.ovirt.engine.core.vdsbroker.vdsbroker.HostSetupNetworksVDSCommand]
(default task-8) [da1984f3-f38b-4e0a-ac80-a81e67d73ff0] Unexpected
return value: Status [code=-32603, message=Internal JSON-RPC error:
{'reason': 'MAC address cannot be specified in bond interface along with
specified bond options'}]
2020-07-22 21:20:35,774+02 ERROR
[org.ovirt.engine.core.vdsbroker.vdsbroker.HostSetupNetworksVDSCommand]
(default task-8) [da1984f3-f38b-4e0a-ac80-a81e67d73ff0] Failed in
'HostSetupNetworksVDS' method
2020-07-22 21:20:35,774+02 WARN
[org.ovirt.engine.core.vdsbroker.vdsbroker.HostSetupNetworksVDSCommand]
(default task-8) [da1984f3-f38b-4e0a-ac80-a81e67d73ff0] Unexpected
return value: Status [code=-32603, message=Internal JSON-RPC error:
{'reason': 'MAC address cannot be specified in bond interface along with
specified bond options'}]
2020-07-22 21:20:35,811+02 ERROR
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(default task-8) [da1984f3-f38b-4e0a-ac80-a81e67d73ff0] EVENT_ID:
VDS_BROKER_COMMAND_FAILURE(10,802), VDSM ovirt-hci01.mch.local command
HostSetupNetworksVDS failed: Internal JSON-RPC error: {'reason': 'MAC
address cannot be specified in bond interface along with specified bond
options'}


Could anybody explain me what 'MAC address cannot be specified in bond
interface along with specified bond options' means? I believe a MAC
address is not configured in interface configuration.

Or does it mean 'fail_over_mac=active' is not supported in oVirt?

Thanks in advance,

Jiri





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