Subject: Doubt reg RFC 793 page 72

From: Balaji Ramakrishnan <[email-masked]>
Date: Thu, 08 Nov 2001 17:36:02 +0530

Hi all,
     A basic doubt reg windows in TCP.

1. The window advt by a TCP is its receive window space.

2,       From Page 72 in rfc 793 ,

          If SND.UNA < SEG.ACK =< SND.NXT, the send window should be
          updated.  If (SND.WL1 < SEG.SEQ or (SND.WL1 = SEG.SEQ and
          SND.WL2 =< SEG.ACK)), set SND.WND <- SEG.WND, set
          SND.WL1 <- SEG.SEQ, and set SND.WL2 <- SEG.ACK.

     If we start to update ur send window evrytime like this means we 
will be basically
     shrinking our send window every time we get small window 
advertisement.Is this
     correct or what is the case the above condition is valid.

                     Pl respond and thanks in advance.
Regards
Balaji Ramakrishnan.