The network uses a distance vector algorithm with hop count as the metric. The implementation has...
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The network uses a distance vector algorithm with hop count as the metric. The implementation has split horizon with poison reverse but it does not use triggered updates or hold down timers. Routers send their distance vectors to each other every 30 seconds and they do not jitter their update times. Subnet 1 R1 R2 R3 R4 Assumption: The subnet 1 fails at time t=0. The update times of each router is as follows. R1: 2.3, 32.3, 62.3, .... R2: 1.7, 31.7, 61.7, .... R3: 14.3, 44.3, 74.3, ... R4: 23, 53, 83, ... R5: 8, 8+30, 6+60, where 0 <8 <30 www RS R5: 8, 0+30, 6+60,... where 0 <8 <30 1a. Find values of 8 for which a count to infinity will occur. 1b. Find the probability of count to infinity for Part A P=...... 1c. If hold-down timers are added to the above network, what is the minimum value of hold-down time to ensure that count to infinity will never happen after failure of subnet 1 in the above network The network uses a distance vector algorithm with hop count as the metric. The implementation has split horizon with poison reverse but it does not use triggered updates or hold down timers. Routers send their distance vectors to each other every 30 seconds and they do not jitter their update times. Subnet 1 R1 R2 R3 R4 Assumption: The subnet 1 fails at time t=0. The update times of each router is as follows. R1: 2.3, 32.3, 62.3, .... R2: 1.7, 31.7, 61.7, .... R3: 14.3, 44.3, 74.3, ... R4: 23, 53, 83, ... R5: 8, 8+30, 6+60, where 0 <8 <30 www RS R5: 8, 0+30, 6+60,... where 0 <8 <30 1a. Find values of 8 for which a count to infinity will occur. 1b. Find the probability of count to infinity for Part A P=...... 1c. If hold-down timers are added to the above network, what is the minimum value of hold-down time to ensure that count to infinity will never happen after failure of subnet 1 in the above network
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Related Book For
Intermediate Financial Management
ISBN: 9780357516669
14th Edition
Authors: Eugene F Brigham, Phillip R Daves
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