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TCPRTT(8)		FreeBSD	System Manager's Manual		     TCPRTT(8)

NAME
     tcprtt -- measure TCP handshake RTT using the stats(3) framework

SYNOPSIS
     tcprtt [-f] host port

DESCRIPTION
     The tcprtt	utility	reliably measures the TCP handshake round trip time
     using the stats(3)	statistics framework.

     Both IPv4 and IPv6	are supported.	If the host argument is	a hostname
     containing	several	A and AAAA records, one	line per record	will be
     printed.

     The options are as	follows:

     -f	     Stop after	the first address of each family

     For each address measured,	a line is printed with 3 columns: address fam-
     ily (4 or 6), the numerical address and the measured RTT in milliseconds.

     When an error occurs for one of the measurement, the -errno(2) is printed
     in	place of the RTT.

     If	at least one entry returns an error, the command exits with the	value
     of	the last encountered error.

SEE ALSO
     stats(3)

FreeBSD	13.0			 June 20, 2019			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

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