Date: Tue, 11 Sep 2007 19:12:04 -0400 From: Preethi Natarajan <nataraja@cis.udel.edu> To: freebsd-net@freebsd.org Cc: "Paul D. Amer" <amer@cis.udel.edu> Subject: TCP rcv_wnd Message-ID: <46E720C4.5090409@cis.udel.edu>
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Hello, I am trying to track TCP's receive window evolution in my experiments. Specifically, I want to know a connection's rwnd before processing every incoming packet. So, I put in my tracking code right after tp->rcv_wnd update in tcp_do_segment() in tcp_input.c I have packet drops in my experiment, and was hoping to see the rcv_wnd go down atleast a little bit. But rcv_wnd remains the same (net.inet.tcp.recvspace value). Was wondering if I am looking at the correct function. Any help is appreciated. Thanks -- Preethi
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