bridge_ifclrflag
bridge_ifclrflag(val, IFBIF_DISCOVER);
bridge_ifclrflag(val, IFBIF_BLOCKNONIP);
bridge_ifclrflag(val, IFBIF_LEARNING);
bridge_ifclrflag(val, IFBIF_LOCKED);
bridge_ifclrflag(val, IFBIF_PVLAN_PTAGS);
bridge_ifclrflag(val, IFBIF_STP);
bridge_ifclrflag(val, IFBIF_BSTP_EDGE);
bridge_ifclrflag(val, IFBIF_BSTP_AUTOEDGE);
bridge_ifclrflag(val, IFBIF_BSTP_PTP);
bridge_ifclrflag(val, IFBIF_BSTP_AUTOPTP);
void bridge_ifclrflag(const char *, u_int32_t);