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String updated in the repository |
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String updated in the repository |
The :math:`2*MSL` seconds delay in the `TIME\_WAIT` state is an important operational problem on servers having thousands of simultaneously opened TCP connections [FTY99]_. Consider for example a busy web server that processes 10.000 TCP connections every second. If each of these connections remains in the `TIME\_WAIT` state for 4 minutes, this implies that the server would have to maintain more than 2 million TCBs at any time. For this reason, some TCP implementations prefer to perform an abrupt connection release by sending a `RST` segment to close the connection [AW05]_ and immediately discard the corresponding :term:`TCB`. However, if the `RST` segment is lost, the remote host continues to maintain a :term:`TCB` for a connection that no longer exists. This optimization reduces the number of TCBs maintained by the host sending the `RST` segment but at the potential cost of increased processing on the remote host when the `RST` segment is lost.
The :math:`2*MSL` seconds delay in the `TIME\_WAIT` state is an important operational problem on servers having thousands of simultaneously opened TCP connections [FTY99]_. Consider for example a busy web server that processes 10.000 TCP connections every second. If each of these connections remains in the `TIME\_WAIT` state for 4 minutes, this implies that the server would have to maintain more than 2 million TCBs at any time. For this reason, some TCP implementations prefer to perform an abrupt connection release by sending a `RST` segment to close the connection [AW05]_ and immediately discard the corresponding :term:`TCB`. However, if the `RST` segment is lost, the remote host continues to maintain a :term:`TCB` for a connection that no longer exists. This optimization reduces the number of TCBs maintained by the host sending the `RST` segment but at the potential cost of increased processing on the remote host when the `RST` segment is lost.
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