What is the correct Origin attribute priority order according to BGP route selection rules?

What is the correct Origin attribute priority order according to BGP route selection rules?

• A. EGP > Incomplete > IGP
• B. IGP > Incomplete > EGP
• C. IGP > EGP > Incomplete
• D. Incomplete > EGP > IGP

Answer: (C)

The correct origin attribute priority order in BGP route selection rules is based on the type of origin a route has. In this context, "IGP" refers to routes learned from an Interior Gateway Protocol (like OSPF or EIGRP), "EGP" refers to routes learned from an Exterior Gateway Protocol, and "Incomplete" indicates that the route has been learned from a source that is not specified or is unknown. The order IGP > EGP > Incomplete signifies that BGP prefers routes that are originated from an IGP first, as these are assumed to provide the most reliable and accurate information about a network's topology. Therefore, if a route has an origin of IGP, BGP will select it over routes learned from EGP or those marked as Incomplete. Routes learned via EGP come next in priority because they are still external information but are treated with slightly less trust than IGP because they might not be as well integrated into the local routing domain. Finally, Incomplete routes are given the lowest priority, as they represent less reliable information that could lead to routing errors. This established priority helps maintain a more stable and efficient routing environment, ensuring that the best and most trustworthy routes are preferred when making routing decisions in

The correct origin attribute priority order in BGP route selection rules is based on the type of origin a route has. In this context, "IGP" refers to routes learned from an Interior Gateway Protocol (like OSPF or EIGRP), "EGP" refers to routes learned from an Exterior Gateway Protocol, and "Incomplete" indicates that the route has been learned from a source that is not specified or is unknown.

The order IGP > EGP > Incomplete signifies that BGP prefers routes that are originated from an IGP first, as these are assumed to provide the most reliable and accurate information about a network's topology. Therefore, if a route has an origin of IGP, BGP will select it over routes learned from EGP or those marked as Incomplete.

Routes learned via EGP come next in priority because they are still external information but are treated with slightly less trust than IGP because they might not be as well integrated into the local routing domain. Finally, Incomplete routes are given the lowest priority, as they represent less reliable information that could lead to routing errors.

This established priority helps maintain a more stable and efficient routing environment, ensuring that the best and most trustworthy routes are preferred when making routing decisions in