Patent ID: 8649285

Claim:
A method performed by a traffic receiver coupled to a network under test, comprising: receiving a stream of packets via the network under test, two or more packets from the stream of packets containing a first packet group identification number (PGID); and for each of the two or more packets containing the first PGID: extracting a sequence number (SN) from the received packet; retrieving data associated with the first PGID from memory within or coupled to the traffic receiver, the data including a next expected sequence number (NESN), a start of run (SOR), a number of in-order packets (NIO) and a number of duplicate packets (NDP); updating the data, updating the data comprising: comparing SN to NESN to determine if SN is equal to, less than, or greater than NESN, when SN is equal to NESN, incrementing NESN and incrementing NIO, when SN is less than NESN, comparing SN to SOR and, when SN is greater than or equal to SOR, incrementing NDP, and when SN is greater than NESN, setting SOR to SN, setting NESN to SN plus one, and incrementing NIO; and storing the updated data in the memory.