paths
QoS values (delay, bandwidth)
P1 (a→m→b)
P2 (a→n→b)
P3 (a→n→v→b)
P4 (a→n→u→v→b)
P5 (a→u→v→b)
P6 (a→u→n→b)
P7 (a→u→v→n→b)
P8 (a→u→n→v→b)
(15, 7)
(5, 2)
(8, 4)
(18, 1)
(14, 5)
(3, 1)
(15, 2)
(6, 1)