I have this question with solution, i understood a and b but for the part c, I dont know how to get it, can someone explain please?

Problem B: The Distance Vector algorithm is implemented at router Vo to build up the forwarding table at source router Vo. The topology is given in the figure on the right. (a) Assuming that the Distance Vector algorithm running on router Vo has stabilized for the 4 given topology, fill in all the elements for each one of the following vectors maintained at router VO. (Hint: the size of each vector is 6) V2 Distance Vector D0 0 7 9 45 Link Vector LO- Distance Vector D1-7 0 2 710 4 Distance Vector D2 9 2 0 9 12 6 Distance Vector D34 79 0 Distance Vector D4- vl v2 v3 v4 v3 7 4 10 12 30 6 (b) when router VO detects that the cost of link (V0, V3) changes from 4 to 10, what are the new values of the elements in DO and LO re-computed by router VO using the Distance Vector algorithm? Should router VO notify its neighbors? Distance Vector DO 0 79 851l yes, notify all its neighbors Link Vector LO = [ vOvlvl ory2v4v4 vl or v4 ] [0 min(7+0,9+ 2,10+7, 5+ 10min(7+ 2, 9+ 0, 10+ 9,5+ 12)min(7+ 7,9+9. 10+ 0, 5+ 3). min(7+ 10, 9+ 12, 10+ 3,5+0). min(7+ 4, 9+ 6, 10+ 3, 5+ 6] (c) if event b didn't occur, when router VO receives a new D3 = [4 8 10 0 3 101 from V3, what are the new values of the elements in DO and LO re-computed by router VO using the Distance Vector algorithm? Should router VO notify its neighbors? Distance Vector DO0 7 945 1yes, notify all its neighbors Link Vector LO VO Vl vl or v12 v3 V4 or v4 DO = [0, min(740,9 + 2, 4+ 8, 5+10), min(7+2, 9+ 0, 4+10, 5+ 12), min(74 7, 9+9, 4+ 0, 5+3), min(7+ 10, 9 12,4+ 3, 5+0) min7+ 4,96.4+ 10, 5+ 6] Problem B: The Distance Vector algorithm is implemented at router Vo to build up the forwarding table at source router Vo. The topology is given in the figure on the right. (a) Assuming that the Distance Vector algorithm running on router Vo has stabilized for the 4 given topology, fill in all the elements for each one of the following vectors maintained at router VO. (Hint: the size of each vector is 6) V2 Distance Vector D0 0 7 9 45 Link Vector LO- Distance Vector D1-7 0 2 710 4 Distance Vector D2 9 2 0 9 12 6 Distance Vector D34 79 0 Distance Vector D4- vl v2 v3 v4 v3 7 4 10 12 30 6 (b) when router VO detects that the cost of link (V0, V3) changes from 4 to 10, what are the new values of the elements in DO and LO re-computed by router VO using the Distance Vector algorithm? Should router VO notify its neighbors? Distance Vector DO 0 79 851l yes, notify all its neighbors Link Vector LO = [ vOvlvl ory2v4v4 vl or v4 ] [0 min(7+0,9+ 2,10+7, 5+ 10min(7+ 2, 9+ 0, 10+ 9,5+ 12)min(7+ 7,9+9. 10+ 0, 5+ 3). min(7+ 10, 9+ 12, 10+ 3,5+0). min(7+ 4, 9+ 6, 10+ 3, 5+ 6] (c) if event b didn't occur, when router VO receives a new D3 = [4 8 10 0 3 101 from V3, what are the new values of the elements in DO and LO re-computed by router VO using the Distance Vector algorithm? Should router VO notify its neighbors? Distance Vector DO0 7 945 1yes, notify all its neighbors Link Vector LO VO Vl vl or v12 v3 V4 or v4 DO = [0, min(740,9 + 2, 4+ 8, 5+10), min(7+2, 9+ 0, 4+10, 5+ 12), min(74 7, 9+9, 4+ 0, 5+3), min(7+ 10, 9 12,4+ 3, 5+0) min7+ 4,96.4+ 10, 5+ 6]