* add a new module to confiure mdn on interface. * doc-default-does-not-match-spec. * add unittest * Update test_ce_mdn_interface.py * add integration. * update for review. * add notes.
* add a new module to confiure mdn on interface. * doc-default-does-not-match-spec. * add unittest * Update test_ce_mdn_interface.py * add integration. * update for review. * add notes.