This reports the load-balancing weight assigned to this forwarding-element list relative to other lists for the same prefix, reading zero if load balancing is not in use for this selection entry at all. This is the actual mechanism behind unequal-cost or weighted load balancing across multiple paths to the same destination, so an admin verifying that traffic is being split in the intended ratio across two links can read the weight values on each FE list directly rather than inferring the split from traffic counters alone. If two forwarding-element lists for the same prefix carry weights of 3 and 1 respectively, CEF would send roughly three times as much traffic over the first path as the second, which an admin could confirm matches the intended unequal-cost load-balancing configuration.