ID:170195 Router estimated average interconnect usage is <number>%% of the available device resources

CAUSE: The Fitter reports the estimated average interconnect usage at the beginning of the routing phase. Large values for average interconnect usage indicate that the design is hard to route and might require more than one fitting attempt. The percentage of routing that can be used by a design before routing becomes difficult varies by device family. Generally, designs that use less than 50% of the total device interconnect will route without difficulty, provided that the peak interconnect usage is not too high.

ACTION: No action is required. If the design is difficult to route, consult the Resource Optimization Advisor for suggestions.