Subject: Re: question about linux tcp request queue handling

From: "Paul Albrecht" <[email-masked]>
Date: Mon, 7 Jul 2003 16:30:47 -0700

Nivedita Singhvi writes:

>
> Again, youre limiting the number of connnection requests
> that are allowed to wait in the *accept* queue, where
> we move to once we're ESTABLISHED.  You arent limiting
> a request sitting in the SYN queue.
>

This statement is inconsistent with the description of this scenario in
Steven's TCP/IP Illustrated.  Specifically, continuing the handshake in the
TCP layer, i.e., sending a syn/ack and moving to the syn_recd state, is
incorrect if the limit of the server's socket backlog would be exceeded.
How do you account for this discrepancy between linux and other
berkeley-derived implementations?