>Even if you only do it in your copy of LWIP, I can see two problems with >modifying the LWIP keep-alive timer: > >1. It only affects one direction. The other direction will still be sending >slow keep-alive packets (unless you have sufficient control over the other >end as well). Sure
>2. If you are running multiple protocols or applications over TCP/IP, a >global change in the keep-alive timer may not be suitable for all >applications. Even if you are running the same protocol over multiple >connections, you might need different keep-alive settings for each >connection (e.g. a LAN connection vs a cellular data connection). Yes, that's why the TCP_KEEPALIVE can change the keepalive timeout for each socket. But the default interval seems to long for most of applications. So, I think that changing it enable a "faster" reaction for some sockets, and allow to set a longer keepalive timeout for others ones... >I just look the DNP protocol. Is it a very used protocol? Do you an >overview about it (send me a private email if you can)... >(replied privately to this part) Yes, I got your email, thank you... _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
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