Xcvr
media_tbl[(config & Xcvr) >> Xcvr_shift].name);
vp->default_media = (config & Xcvr) >> Xcvr_shift;
config = (config & ~Xcvr) | (dev->if_port << Xcvr_shift);
config = (config & ~Xcvr) | (dev->if_port << Xcvr_shift);
lp->default_media = (config & Xcvr) >> Xcvr_shift;