20. An appeal is commenced by the filing of a notice of appeal in the office of the clerk within the times contemplated in Article 271 of the Code or within such extended time as may have been authorized pursuant to the second paragraph of Article 271.
Upon receipt of the notice of appeal the clerk shall transmit copies of same to counsel who acted in first instance as well as to the judge who rendered the decision appealed from and to the clerk of the court of first instance.