TCP/IPv6 Configuration and Management Manual (G06.24+)

SCF Reference for NonStop TCP/IPv6
HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008
8-78
INFO PROCESS Command for TCP6SAM
Trace Status
is ON when the process is being traced using SCF.
Trace Filename
is the name of the current trace file.
RFC1323 Enable
is ON to cause TCP to support TCP Large Windows as documented in RFC 1323.
When this option is enabled, NonStop TCP/IPv6 uses the TCP Window Scale and
Timestamp options as described in RFC 1323. The largest TCP window supported
is 262144 bytes when this option is enabled, and 65535 when the option is
disabled. The default for this option is ON.
TCP Init Rexmit Timeout
is the initial retransmit timer value in milliseconds to use on a TCP connection.
When the first round trip timer measurement is made on a TCP connection and the
calculation is done to arrive at the retransmission timeout to use on the next packet
sent, this value is used unless the calculated value is larger. This variable can be
used to help reduce the number of premature retransmission timeouts. The default
is 1000 milliseconds, or 1 second. The range is 200 to 30000 milliseconds.
TCP Min Rexmit Timeout
is the minimum value allowed for the TCP retransmission timeout. If this value is
too low, the NonStop TCP/IPv6 subsystem can generate premature
retransmissions. If this value is set too high, real retransmissions is delayed,
increasing the time for error recovery. The default is 1000 milliseconds. The range
is 50 to 30000 milliseconds.
TCP Listen Queue Min
is the minimum queue length that is set on a TCP socket when the NonStop
TCP/IPv6 subsystem handles a socket LISTEN or ACCEPT_NW1 function call.
This value is used if the queue length specified in the socket request is lower,
otherwise the queue length in the socket request is used. The default value is 128.
The range is 1 to 1024.
Initial TTL
specifies the initial value for UDP and TCP TTL. The default is 64, but can be
altered to 30. The only valid values are 30 and 64.