Forward Error Correction (FEC) ratio or
the percentage of packet duplication for app traffic over the link. For
the FEC ratio, the larger the difference, the better. For example, 20:10 is better
than 20:2.
A
way to understand the impact of FEC is to convert the ratio into
a percentage. The higher the percentage value, the more parity the
firewall is adding to the traffic flow and the better the chance
of recovering from packet loss. However, this also results in more
bandwidth used to transmit data. The trade-off of higher recoverability
as the result of higher FEC percentage is that more bandwidth is
used. | 
