272 struct mfc {  struct
274 	struct in_addr	mfc_origin;		/* IP origin of mcasts	     */  argument
275 	struct in_addr  mfc_mcastgrp;		/* multicast group associated*/  argument
276 	vifi_t		mfc_parent;		/* incoming vif              */  argument
277 	u_char		mfc_ttls[MAXVIFS];	/* forwarding ttls on vifs   */  argument
278 	u_long		mfc_pkt_cnt;		/* pkt count for src-grp     */  argument
279 	u_long		mfc_byte_cnt;		/* byte count for src-grp    */  argument
280 	u_long		mfc_wrong_if;		/* wrong if for src-grp	     */  argument
281 	int		mfc_expire;		/* time to clean entry up    */  argument
282 	struct timeval	mfc_last_assert;	/* last time I sent an assert*/  argument
283 	uint8_t		mfc_flags[MAXVIFS];	/* the MRT_MFC_FLAGS_* flags */  argument
284 	struct in_addr	mfc_rp;			/* the RP address	     */  argument
285 	struct bw_meter	*mfc_bw_meter;		/* list of bandwidth meters  */  argument
286 	u_long		mfc_nstall;		/* # of packets awaiting mfc */  argument