tmnxOamMRInfoRespIfFlags indicates the flags associated with
an interface:
tunnel(0) Neighbor reached via tunnel
srcrt(1) Tunnel uses IP source routing
reserved1(2) No longer used
reserved2(3) No longer used
down(4) Operational status down
disabled(5) Administrative status down
querier(6) Querier for interface
leaf(7) No downstream neighbors on interface