Bonding of interfaces is handled by the standard Linux bonding driver. Refer to the Linux Ethernet Bonding Driver HOWTO from the Linux Kernel Archives for details of alternative methods for bonding configuration. The following example is a manually bonding configuration using ifenslave:
# modprobe bonding miimon=100 mode=active-backup primary=eth5
# ifconfig bond0 172.16.136.27/21
# ifenslave bond0 eth0 eth1
To run sfptpd
over the bonded interfaces:
sfptpd -i bond<N> -f <path>/ptp_slave.cfg