Quoting Ian McDonald: | Do we calculate mss anywhere? Yes there is support in dccps_mss_cache . At the begin of dccp_send_msg e.g. it is used. I have thought about `s' vs. MSS and it is really stupid not to use MSS -- if `s' is e.g. 20 bytes, one can only send 40 ... 80 bytes per RTT -- with jumbo ethernet cards the MTU can be as high as 10k -- a multiple of 20 bytes :) Gerrit - To unsubscribe from this list: send the line "unsubscribe dccp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html