The filter policy type defines the list of match criteria available in a filter policy. It provides filtering flexibility by reallocating the CAM in the line card at the filter policy level to filter traffic using additional match criteria not available using filter type normal. The filter type is specific to the filter policy, it is not a system wide or line card setting. The operator can configure different filter policy types on different interfaces of the same system and line card.
Mac-filter supports three different filter types: normal, isid or vid.
IPv4 and IPv6 filters support four different filter types: normal, src-mac, packet-length or destination-class.