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Specifying the Route Preference

By default, aggregate routes have a preference value of 130. If the routing table contains a dynamic route to a destination that has a better (lower) preference value than this, the dynamic route is chosen as the active route and is installed in the forwarding table.

To modify the default preference value, specify a primary preference value (preference). You also can specify secondary preference value (preference2); and colors, which are even finer-grained preference values (color and color2). To do this, include one or more of the following statements:




aggregate (defaults | route) {
(preference | preference2 | color | color2) preference <type type>;
}

For a list of hierarchy levels at which you can include these statements, see the statement summary sections for these statements.

The preference value can be a number in the range from 0 through 4,294,967,295 (2³² – 1) with a lower number indicating a more preferred route. For more information about preference values, see Route Preferences.

In the type option, you can specify the type of route.

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