| tcp_vtw.c | 32 * methods called Vestigial Time-Wait (VTW) and Maximum Segment Lifetime
35 * MSLT and VTW were contributed by Coyote Point Systems, Inc.
54 * Vestigial Time-Wait (VTW) replaces a TIME_WAIT session's PCB/socket
56 * "vestigial PCB". VTW data structures are designed to be very fast and
64 * runs out, VTW makes room by discarding old vestigial PCBs, oldest first.
65 * VTW cooperates with MSLT.
67 * It may help to think of VTW as a "FIN cache" by analogy to the SYN
71 * sessions as fast as it can is approximately 17% idle when VTW is active
72 * versus 0% idle when VTW is inactive. It has 103 megabytes more free RAM
73 * when VTW is active (approximately 64k vestigial PCBs are created) tha
470 vtw_v4_t *vtw = ctl->base.v4 + idx; local in function:vtw_from_index
475 vtw_v6_t *vtw = ctl->base.v6 + idx; local in function:vtw_from_index
778 vtw_t *vtw; local in function:vtw_lookup_hash_v4
931 vtw_t *vtw; local in function:vtw_lookup_hash_v6
1029 vtw_t *vtw; local in function:vtw_next_port_v4
1143 vtw_t *vtw; local in function:vtw_next_port_v6
1378 vtw_t *vtw = 0; local in function:vtw_alloc
1487 vtw_t *vtw; local in function:vtw_age
1640 vtw_t *vtw = 0; local in function:tcp_next_port_v4
1656 vtw_t *vtw; local in function:tcp_lookup_v4
1740 vtw_t *vtw = 0; local in function:tcp_next_port_v6
1757 vtw_t *vtw; local in function:tcp_lookup_v6
1883 vtw_t *vtw; local in function:vtw_add
2060 vtw_t *vtw; local in function:vtw_restart_v4
2108 vtw_t *vtw; local in function:vtw_restart_v6
2230 vtw_t *vtw; local in function:vtw_debug_add
2376 vtw_t *vtw; local in function:vtw_sanity_check
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