What is the standard administrative distance assigned to OSPF?

OSPF, which stands for Open Shortest Path First, is a widely used interior gateway routing protocol. The standard administrative distance for OSPF is set at 110.

Administrative distance is a value used by routers to determine the trustworthiness of the routing information from different sources. Lower values indicate more reliable routes. OSPF, being a classless and link-state protocol, is known for its efficiency and fast convergence times, which justifies its administrative distance of 110.

In the context of routing protocols, various protocols are assigned different administrative distances to prioritize routes from more trusted protocols over less trusted ones. For instance, EIGRP has a lower administrative distance than OSPF, which further emphasizes OSPF's competitiveness in a routing environment. This standardization helps maintain consistency across networking devices, ensuring that routing decisions are made based on predetermined trust metrics.