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Esercizi Routing.pdf - the Netgroup at Politecnico di Torino

Esercizi Routing.pdf - the Netgroup at Politecnico di Torino

Esercizi Routing.pdf - the Netgroup at Politecnico di Torino

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1.2. Distance Vector e Triggered Upd<strong>at</strong>es<br />

Sia d<strong>at</strong>a le rete sottostante, nella quale ogni router scambia informazioni <strong>di</strong> routing <strong>at</strong>traverso un<br />

protocollo <strong>di</strong> tipo <strong>di</strong>stance vector che segue fedelmente l’algoritmo teorico con l’aggiunta delle Triggered<br />

Upd<strong>at</strong>es.<br />

Si scrivano i <strong>di</strong>stance vector scambi<strong>at</strong>i tra R2 ed R4 a fronte del rilevamento del guasto da parte <strong>di</strong><br />

R2, supponendo che i router abbiano l’algoritmo <strong>di</strong> Split Horizon with Poisonous Reverse abilit<strong>at</strong>o.<br />

192.168.2.1/24<br />

R1 R2 R3<br />

192.168.1.1/30<br />

6<br />

192.168.1.6/30<br />

R4<br />

192.168.3.1/24<br />

192.168.1.9/30<br />

192.168.4.1/24

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