backoff(A mechanism that is used to deliver messages at an interim hop, along the least-cost routing path. A backoff occur when direct relay fails for any reason, such as network issues or servers going offline. The routing component tries to deliver messages as close to the destination as possible by backing off, hop by hop, along the least-cost routing path until a connection is made); interrupt(A signal sent by a device to get the attention of the processor when the device is ready to accept or send information); trap(In Simple Network Management Protocol (SNMP), a message sent by an agent to a management system indicating that an event has occurred on the host running the agent)
