Description: This attribute indicates the priority at which a route has been selected, or a value of 4 for manual routes since no route selection was made. Since RouteSelector does not verify manual routes the value of 4 for routeBumpingPriority symbolizes an unknown value for manual routes. The remainder of the description is not applicable to manual routes.

The bumping priority of a route specifies a priority at which a path along that route can be established. The lowest bumping priority is 4, the highest bumping priority is equal to a setup priority contained in the route request data. If a route is selected at bumping priority 4, then no paths will be bumped since there appears to be enough free bandwidth on selected trunks, and also since this bumping priority is not better than the lowest holding priority (4) of any path.

If a route cannot be selected at bumping priority 4 and a setup priority is 3 or better, then a route may be selected at bumping priority 3. This means that paths at holding priority 4 may be bumped if currently there is not enough free bandwidth on selected trunks to establish the new path with setup priority 3.

If a route cannot be selected at bumping priority 3 and a setup priority is 2 or better, then a route may be selected at bumping priority 2. In this case paths with holding priority 4 and 3 may be bumped if there is not enough free bandwidth on selected trunks to establish the new path with setup priority 2.

If a route cannot be selected at bumping priority 2 and a setup priority is 1 or better, then a route may be selected at bumping priority 1. In this case paths with holding priority 4, 3, and 2 may be bumped if there is not enough free bandwidth on selected trunks to establish the new path with setup priority 1.

If a route cannot be selected at bumping priority 1 and a setup priority is 0, then a route may be selected at bumping priority 0. In this case paths with holding priority 4, 3, 2, and 1 may be bumped if there is not enough free bandwidth on selected trunks to establish the new path with setup priority 0.