Sharp DV-MX1U User's Guide download pdf (Page 145)

SOCKETS TCP/IP Stack 133

E-EQ-MX1RG-D MX1 Reference Guide

To affect incoming connections, tcp irtt should be executed before the servers are started.

Example

tcp irtt 120

Sample Output

TCP: IRTT 5 ms Retry 6 MSS 1460 SMSS 1460 Window 2920

tcp lport Sub-command

tcp lport specifies the local port starting number. When specified without a number the current

value of the next free local port number is displayed.

Example

tcp lport 2004

Sample output

Lport = 2004

tcp mss Sub-command

tcp mss displays or sets the TCP maximum segment size in bytes. When size is not specified, the

current values of the TCP parameters, including the maximum segment size, are displayed. It is

recommended to reduce the MSS and SMSS on bad network connections.

Example

tcp mss 1460

tcp retry Sub-command

tcp retry displays or sets the retry count before a connection is broken. When specified without the

number parameter, tcp retry displays the current values of TCP parameters, including the retry

count.

tcp rtt sub-command

tcp rtt replaces the automatically computed round-trip time (RTT) for the specified connection with the

time in milliseconds. Sockets calculates the RTT as a smooth average of past measured RTTs,

starting with the IRTT on a new connection.

To get the current RTT in use for a connection n, use the tcp status n command that will give the

smoothed average RTT indicated by SRTT.

Because tcp rtt provides a manual override of the normal back-off retransmission

timing

mechanisms, it may be used to speed up recovery from a series of lost packets.

Example

tcp rtt 4 100

1 ... 144 145 146 ... 216

No comments

Sharp DV-MX1U User's Guide Page 145