[root@QN-Transit network-scripts]# systemctl stop NetworkManager
[root@QN-Transit network-scripts]# systemctl disable NetworkManager

[root@QN-Transit network-scripts]# lsmod | grep bond
bonding               152979  0 

[root@QN-Transit network-scripts]# modprobe --first-time bonding

[root@QN-Transit network-scripts]# cat /etc/modprobe.d/bonding.conf 
alias bond0 binding
options bond0 miimon=100 mode=0

[root@QN-Transit network-scripts]# cat /etc/sysconfig/network-scripts/ifcfg-bond0 
TYPE=Bond
BOOTPROTO=none
ONBOOT=yes   
USERCTL=no
DEVICE=bond0
IPADDR=192.168.10.3
PREFIX=24
NM_CONTROLLED=no
BONDING_MASTER=yes

[root@QN-Transit network-scripts]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
NAME=em1
DEVICE=em1
ONBOOT=yes
MASTER=bond0
SLAVE=yes
USERCTL=no

[root@QN-Transit network-scripts]# cat /etc/sysconfig/network-scripts/ifcfg-p2p1
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
NAME=p2p1
DEVICE=p2p1
ONBOOT=yes
MASTER=bond0
SLAVE=yes
USERCTL=no

[root@QN-Transit network-scripts]# systemctl restart network
[root@QN-Transit network-scripts]# cat /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 0
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: em1
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 2c:ea:7f:aa:be:26
Slave queue ID: 0

Slave Interface: p2p1
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: e8:61:1f:14:35:98
Slave queue ID: 0