Since the 1990s, the external route has been withdrawn and now the diploma provides a comprehensive introduction to the principles of teaching through practical work.

In Cisco's implementation, the external routes can be summarized before injecting them into the totally stubby area.

It also forced the KMB to impose boarding and alighting restrictions for external routes.

The new external circular route (originally CE (circolare esterna), now 90/91) was built as a trolleybus line.

Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:

Mycoviruses might simply not need an external route of infection as they have many means of transmission and spread due to their fungal host's life style:

Movement between Terminals 1 and 3 is now via a short external uncovered pedestrian route; alternatively, a free bus service exists, which also serves "'The Station'".

By declaring the totally stubby area as NSSA, no external routes from the backbone, except the default route, enter the area being discussed.

External Routes:

NSSA is an extension of the stub area feature that allows the injection of external routes in a limited fashion into the stub area.