TCP/IP (Parallel Library) Configuration and Management Manual

SCF Reference for Parallel Library TCP/IP
HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
5-26
ALTER MON Command for TCPMAN
TCPSENDSPACE int
specifies the size of the window used for sending data for the TCP protocol. The
recommended range for is 512 bytes to 12k bytes. The default value is 8K.
TCPRECVSPACE int
specifies the size of the window used for receiving data for the TCP protocol. This
value affects the performance, as it is mapped to the advertised window. The
recommended range is 512 bytes to 12k bytes. The default value is 8K. It is
recommended that this value not be set too low (below 2K).
UDPSENDSPACE int
specifies the size of the window used for sending data for the UDP protocol. The
recommended range is 512 bytes to 12k bytes. The default value is 9216.
UDPRECVSPACE int
specifies the size of the window that is used for receiving data for the UDP
protocol. The recommended range is 512 bytes to 12k bytes. The default value is
41600. It is recommended that these values not be set too low (below 2K).
DELAYACKS { ON | OFF }
specifies whether acknowledgments for TCP packets be sent immediately (as soon
as a packet is received). This mechanism allows more that one packet to be
acknowledged with a single ACK. This helps reduce the network traffic. It also
allows the TCP window to be filled up before an ACK is generated. The default
value for DELAYACKS is ON.
DELAYACKSTIME int
specifies how much the delay time is before an ACK (acknowledgment) is sent for
a packet. This is useful only if the DELAYACKS parameter is ON. It is specified in
intervals of 0.01 seconds. The default value is 20 (200 milliseconds). The range is
1 through 50. It is recommended that the value of this variable not be greater than
20 (200 milliseconds).
HOSTNAME string
is the official name by which the host upon which the TCPMON is running is known
to the Internet. This is a character string no longer than 50 characters. The default
values is null.
HOSTID int
is the identification number (usually the host number part of the Internet address
that is assigned to this host). It is a 32-bit number.