Inferring TCP initial congestion window

A system for inferring an initial congestion window (ICW), comprising:

• a memory for storing a program containing code for inferring the ICW;
• and
• a processor functionally coupled to the memory, the processor being responsive to computer-executable instructions contained in the program and configured to
• receive a packet trace,
• determine inter-arrival times between multiple packets in the packet trace,
• identify an inter-arrival time in the inter-arrival times that is greater than a threshold,
• identify an order number of the inter-arrival time,
• determine whether a size of each of at least a portion of the multiple packets is equal to a maximum segment size, and
• upon determining that the size of each of at least a portion of the multiple packets is equal to the maximum segment size, return a size of the ICW as a product of the order number and the maximum segment size.

A non-transitory computer-readable medium having instructions stored thereon for execution by a processor to provide a method for inferring an initial congestion window (ICW), the method comprising:

• receiving a packet trace;
• determining inter-arrival times between multiple packets in the packet trace;
• identifying an inter-arrival time in the inter-arrival times that is greater than a threshold;
• identifying an order number of the inter-arrival time;
• determining whether a size of each of at least a portion of the multiple packets is equal to a maximum segment size;
• and
• upon determining that the size of each of at least a portion of the multiple packets is equal to the maximum segment size, returning a size of the ICW as a product of the order number and the maximum segment size.