> Instead it installs rules for 0.0.0.0/1 and 128.0.0.0/1, creating a rule that has slightly higher priority More specific prefix isn’t slightly better, prefix

> Instead it installs rules for 0.0.0.0/1 and 128.0.0.0/1, creating a rule that has slightly higher priority More specific prefix isn’t slightly better, prefix length is one of the most significant rules of routing. This trick is quite common in networking - you point more specific routes to the main link and less specific to a backup. It the main link go down the specifics are getting withdrawn (some mechanism like dynamic routing should be in place for that) and the less specific route takes place, redirecting the traffic over the backup link.