This read-write INTEGER (include(1)/exclude(2)) specifies whether the L2 interfaces listed in rlBonjourL2Table should have Bonjour included on them once they meet all the conditions (publishing on, at least one service enabled, the L2 interface present and up, and having an IP), or excluded even if all those conditions are met. An admin cares because it lets specific VLANs be carved out of, or explicitly opted into, Bonjour discovery regardless of the general publishing settings. For example, an admin who wants Bonjour active everywhere except a sensitive management VLAN would list that VLAN and set this object to exclude.