Is bond interface on top of VLAN a supported configuration?

Environment

• Red Hat Enterprise Linux (Any version)

Issue

• Is it possible to configure bond on top of vlan interfaces ?
• Is below configuration supported by Red Hat?

[root@host]# cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=X.X.X.X
NETWORK=X.X.X.X
BONDING_OPTS="mode=<any-mode> miimon=100"
[...]

[root@host]# cat /etc/sysconfig/network-scripts/ifcfg-eth4
# QLogic Corp. cLOM8214 1/10GbE Controller
DEVICE=eth4
BOOTPROTO=none
ONBOOT=no
USERCTL=no
TYPE=Ethernet

[root@host]# cat /etc/sysconfig/network-scripts/ifcfg-eth4.28
# QLogic Corp. cLOM8214 1/10GbE Controller
DEVICE=eth4.28
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes
VLAN=yes

[root@host]# cat /etc/sysconfig/network-scripts/ifcfg-eth5
# QLogic Corp. cLOM8214 1/10GbE Controller
DEVICE=eth5
BOOTPROTO=none
ONBOOT=no
USERCTL=no
TYPE=Ethernet

[root@host]# cat /etc/sysconfig/network-scripts/ifcfg-eth5.28
# QLogic Corp. cLOM8214 1/10GbE Controller
DEVICE=eth5.28
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes

Resolution

• Configuring bond interface on top of VLAN is not a supported configuration. It technically may work but such a configuration will not be supported by Red Hat.
• The supported configuration is to create VLAN device over bonded interface. More details how to perform this can be found here.

Diagnostic Steps

• Check the current bonding and VLAN configuration done in the system.

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