• Pasi Sarolahti's avatar
    [TCP]: Add F-RTO support. · 074d9880
    Pasi Sarolahti authored
    Motivation for this modification is that especially on some wireless
    network technologies there are delay spikes that trigger RTO even though
    no packets are lost. F-RTO sender continues by sending new data after RTO
    retransmission in order to avoid unnecessary retransmissions in that case.  
    If the sender sees any duplicate acks after the RTO retransmission, it
    reverts to traditional slow start retransmissions. If new acks arrive
    after forward transmissions, they very likely indicate that the RTO was
    indeed spurious and the sender can continue sending new data (because 
    only one segment was retransmitted).
    074d9880
tcp_input.c 112 KB