ProtoGen  is a utility, working together with your PC and installed DOS NDIS-based network card to measure the ability of network components to handle multi-protocol traffic.ProtoGen  creates IP, IPX, XNS, DECNET and APPLETALK network traffic to test and stress nics, bridges, routers and switches.  It can also assist in systems testing by simulating the varied background traffic of a production network of different MAC addresses, network addresses, protocols and packet lengths. ProtoGen can be set up to receive a stream of serialized multi-protocol packets from another ProtoGen station, and  report if there are missing, out of sequence or duplicate packets in the received packet stream.At $3986.00 the cheapest full media rate protocol generator in the industry.  The following statistics are reported on the stream of serial numbers received by ProtoGen: 
SERIAL NUMBER: The last serial number received. 
IN SEQUENCE: The number of times the serial number received was one greater than the last serial number received. 
OUT OF SEQUENCE:  The number of times the serial number received was less  than the last serial number received. 
OCCURRENCE OF MISSED PACKETS:  The number of times the serial number received was more  than the last serial number received plus 1. 
NUMBER OF MISSED PACKETS:  The total number of all the missed packets from all the occurrences of missed packets. 
DUPLICATE:  The number of times the serial number received was equal to the last serial number received. 
RECEIVE OVERRUNS:  The receive buffer is set for a maximum of 100 serial numbers.  If there are more than 95 serial numbers in the  receive buffer, additional serial numbers are dropped, and the counter is incremented.