Circuit
• Defines the end-to-end connections and the Path within the network.
• User oriented connections between the points at the border of the network. Possible rates are P0_nc, P12.
• Has end-points that are connected to external equipment.
− From A1 to Z1, P0 protected Circuit, Bern-Lausanne-London.
− From A2 to Z2, P0 non protected Circuit, Bern-Fribourg-Munich-Moscow.