Start Video

Instructor: Lawrence Landweber,Jun Murai No. 16 10/29/1999

When is a segment accepted by a receiver?

• Segment  Receive      Test
• Length      Window    
• --------  --------    ---------------------------------------------------
•   0     0 SEG.SEQ  =  =  RCV.NXT
•   0 >0 RCV.NXT  <=  SEG.SEQ  <  RCV.NXT+RCV.WND
• >0     0 not  acceptable
• >0 >0 RCV.NXT  <=  SEG.SEQ  <  RCV.NXT+RCV.WND
  •                     or  RCV.NXT  <=  SEG.SEQ+SEG.LEN-1  <  RCV.NXT+RCV.WND