Unidirectional links is a feature that configures an Ethernet interface transmit and receive paths to be independent. Specifically, the transmit path can be up or down independent of the receive path being up or down.

This feature adds the capability to import as path access-list from a URL, in release 4.20.1F. The file specified by the URL can contain one or more as-path access-list entries. All the entries that are in the file are added to the as-path access-list being configured. This feature gives the advantage of using one EOS CLI command to configure many as-path access-list entries, instead of adding each one of them line by line in the CLI.