This read-write integer sets the expected percentage utilization of a channel's egress service rate, feeding into egress bandwidth calculations and connection admission control decisions on the outbound side. Admins configure this analogous to its ingress counterpart, but specifically for outbound traffic expectations, which matters because ingress and egress load on a connection can differ substantially (e.g., an asymmetric data service). For example, a connection with heavy download but light upload traffic might have a much higher ausmChanEgrPercentUtil than ausmChanIngrPercentUtil to reflect that asymmetry.