ADTRAN AOS Version R10.1.0 Command Reference Manual page 3002

Command Reference Guide Router (OSPF) Command Set
Administrative distance is a feature that routers employ in order to select the most reliable path when there
are two or more routes to the same destination from two different routing protocols. Administrative distance
defines the reliability of a routing protocol by assigning a value (the smaller the value, the more trustworthy
the protocol) that is then used by the router to organize routing protocols according to reliability.
60000CRG0-35E Copyright © 2012 ADTRAN, Inc. 3002