Route preference

Routing protocols, including static and direct routing, each by default have a preference. If they find multiple routes to the same destination, the router selects the route with the highest preference as the optimal route.

The preference of a direct route is always 0 and cannot be changed. You can configure a preference for each static route and each dynamic routing protocol. The following table lists the route types and default preferences. The smaller the value, the higher the preference.

Table 3: Route types and default route preferences

Route type

Preference

Direct route

0

Multicast static route

1

OSPF

10

IS-IS

15

Unicast static route

60

RIP

100

OSPF ASE

150

OSPF NSSA

150

IBGP

255

EBGP

255

Unknown (route from an untrusted source)

256