A single connection to a single service provider.

Two connections to a single service provider.

Two connections to two different service providers.

Multiple connections to different service providers.

Origin, Next Hop and Local Preference.

Local preference, AS Path and Next Hop.

Aggregator, Next Hop and AS Path.

AS Path, Next Hop and Origin.

Import policies affect the way the local AS receives traffic, while export policies affect the way it sends traffic.

Import policies affect the way the local AS sends traffic, while export policies affect the way it receives traffic.

Both import and export policies affect the way the local AS receives traffic, but not the way it sends traffic.

Both import and export policies affect the way the local AS sends traffic, but not the way it receives traffic.

Optional transitive attribute.

Optional non-transitive attribute.

Well-known mandatory attribute.

Well-known discretionary attribute.

There can only be one community associated with a route.

Community is an optional non-transitive attribute.

Community is an optional transitive attribute.

Community is a well-known discretionary attribute.