• Disable NetworkManager

systemctl stop NetworkManager
systemctl disable NetworkManager

• Take note of the names of your NICs and their MAC addresses

ip link

In my case they are called eno1 and eno2 so you will need to substitute your own values accordingly in the following steps.
Setup your switch ports as an LACP trunk. You'll need to consult your documentation on how to do that.

• Edit /etc/sysconfig/network-scripts/ifcfg-eno1

DEVICE=eno1
NM_CONTROLLED=no
BOOTPROTO=none
NAME=eno1
ONBOOT=yes
SLAVE=yes
MASTER=bond0

• Edit /etc/sysconfig/network-scripts/ifcfg-eno2

DEVICE=eno2
NM_CONTROLLED=no
BOOTPROTO=none
NAME=eno2
ONBOOT=yes
SLAVE=yes
MASTER=bond0

• Edit /etc/sysconfig/network-scripts/ifcfg-bond0

Note: Redhat states as of RHEL7 that the bonding module doesn't support STP so the network switch shouldn't send BDPU packets over the bonded ports: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/sec-configuring_a_vlan_over_a_bond

DEVICE=bond0
NAME=bond0
IPADDR=10.1.1.5
NETMASK=255.255.255.0
GATEWAY=10.1.1.1
DNS1=10.1.1.1
DNS2=10.1.1.2
ONBOOT=yes
USERCTL=no
BONDING_OPTS="mode=4 miimon=100 lacp_rate=1"
NM_CONTROLLED=no

Restart your server so that the bonding module is loaded with the correct options during boot.

• Check that the bond0 interface is up

ip addr

• Turn off Network manager:

systemctl disable NetworkManager
systemctl stop NetworkManager

To find the HWADDR do this: ethtool -P <if-name>

In the /etc/sysconfig/network-scripts directory it is necessary to create 2 config files. The first (ifcfg-eth1) (or ifcfg-em1 or em0 or eth0 etc) defines your physical network interface, and says that it will be part of a bridge:

vim /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
HWADDR=00:16:76:D6:C9:45 (Use your HWADDR/mac address here)
ONBOOT=yes
BRIDGE=br0
NM_CONTROLLED=no

• The second config file (ifcfg-br0) defines the bridge device

vim /etc/sysconfig/network-scripts/ifcfg-br0

DEVICE=br0
TYPE=Bridge
BOOTPROTO=none
ONBOOT=yes
DELAY=0
NM_CONTROLLED=no

WARNING: The line TYPE=Bridge is case-sensitive - it must have uppercase 'B' and lower case 'ridge' Also, if you have only 1 Ethernet adapter you will want to give the Bridge device an IP on your LAN for management, see static IP example below. After changing this restart networking (or simply reboot) .

systemctl restart network 

Example of ifcfg-br0 for static IP:

DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
ONBOOT=yes
DELAY=0
NM_CONTROLLED=no
IPADDR=10.222.190.249
NETWORK=10.222.190.0
NETMASK=255.255.255.0
GATEWAY=10.222.190.250
DNS1=208.67.220.220
DNS2=208.67.222.222

Configure the parent interface in /etc/sysconfig/network-scripts/ifcfg-ethX, where X is a unique number corresponding to a specific interface, as follows:

    DEVICE=ethX
    TYPE=Ethernet
    BOOTPROTO=none
    ONBOOT=yes

Configure the VLAN interface configuration in the /etc/sysconfig/network-scripts/ directory. The configuration file name should be the parent interface plus a . character plus the VLAN ID number. For example, if the VLAN ID is 192, and the parent interface is eth0, then the configuration file name should be ifcfg-eth0.192:

    DEVICE=ethX.192
    BOOTPROTO=none
    ONBOOT=yes
    IPADDR=192.168.1.1
    PREFIX=24
    NETWORK=192.168.1.0
    VLAN=yes

If there is a need to configure a second VLAN, with for example, VLAN ID 193, on the same interface, eth0, add a new file with the name eth0.193 with the VLAN configuration details.

Restart the networking service in order for the changes to take effect. As root issue the following command:

systemctl restart network