What is Administrative Distance


Administrative Distance is the measure of the "trustworthiness" of a route. Administrative Distance is a number which value can vary from 0-255, where 0 is absolutely trusted, and 255 cannot be trusted at all. The Administrative Distance of a static route is 1 and that of a directly connected route is 0.

Route TypeAdministrative Distance
Connected 0
Static1
EIGRP Summary Route5
EBGP 20
EIGRP (Internal)90
OSPF 110
IS-IS 115
RIP120
EGP 140
EIGRP (External)170
iBGP (External)200
Unknown 255

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