aggr_port_addvlan
if ((err = aggr_port_addvlan(port, idx, vid)) != 0)
if ((err2 = aggr_port_addvlan(p, idx, vid)) != 0) {
if ((err = aggr_port_addvlan(port, g_idx, avp->av_vid)) != 0)
extern int aggr_port_addvlan(aggr_port_t *, uint_t, uint16_t);