This counter counts CFM frames the device had to flood out multiple ports rather than switch to a single learned destination, since the description simply calls them 'flooded frames sent.' CFM multicast frames such as CCMs, which use a well-known multicast destination MAC per MD level, are flooded when there is no unicast MAC-table entry to direct them, so a high flooding rate for a service tends to mirror how many ports or MEPs are actively participating in that maintenance association. A count climbing by roughly one increment per configured MEP every CCM interval (for example about 20 per second for 20 MEPs each sending once a second) is the expected pattern; a rate far higher than that math predicts suggests something is forcing needless flooding.