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Zorluk: KolayRouting Concepts and Dynamic Routing Protocols

A network router has learned multiple routes to the same destination network from different routing sources. Arrange the following route sources in order of administrative distance priority, from the most trustworthy source (lowest administrative distance) to the least trustworthy source (highest administrative distance).

  1. 1Directly connected interface
  2. 2Static route
  3. 3OSPF dynamic route
  4. 4RIP dynamic route

Cevap

The correct order from most trustworthy (lowest AD) to least trustworthy (highest AD) is: Directly connected interface (AD 0), Static route (AD 1), OSPF dynamic route (AD 110), and RIP dynamic route (AD 120).
Administrative distance (AD) rates the trustworthiness of routing information received from different routing sources on a scale where lower values are preferred. Directly connected routes are most trusted (AD 0), followed by static routes (AD 1), OSPF dynamic routes (AD 110), and RIP dynamic routes (AD 120).

Adım Adım Çözüm

1
Identify the Administrative Distance (AD) value for directly connected networks.
Directly connected interfaces have an AD of 0.
Direct connections represent local active hardware links and are the most reliable.
2
Identify the AD value for manually configured static routes.
Static routes have a default AD of 1.
Explicit administrative configuration takes precedence over all dynamic protocols.
3
Compare default AD values of dynamic interior gateway protocols.
OSPF has an AD of 110, whereas RIP has an AD of 120.
Lower numerical AD values indicate higher trustworthiness when selecting routes from different protocols.

Anahtar Kavram

Administrative Distance Priority in Route Selection
Tahmini Süre:45s
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Routing Concepts and Dynamic Routing Protocols

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