TCP/IP Configuration and Management Manual

SCF Reference
TCP/IP Configuration and Management Manual—427132-004
4-27
ALTER PROCESS Command
TCPRECVSPACE window-size
specifies the default window size used to receive data for the TCP protocol. You
can specify values in the range 512 bytes through 262144 bytes. The value you
specify affects NonStop TCP/IP subsystem performance. Although some
applications may use values in the lower range, you should not set the value below
2K bytes.
UDPSENDSPACE window-size
specifies the default window size used to send data for the UDP protocol. You can
specify values in the range 512 bytes through 262144 bytes.
UDPRECVSPACE window-size
specifies the default window size used to receive data for the UDP protocol. You
can specify values in the range 512 bytes through 262144 bytes. The value you
specify affects the NonStop TCP/IP subsystem performance. Although some
applications may use values in the lower range, you should not set the value below
2K bytes.
DELAYACKS
specifies whether the acknowledgment (ACK) should be delayed when a TCP
packet is received from a remote site. The value ON delays acknowledgment for
the duration of the interval specified by DELAYACKSTIME or until the TCP receive
window is full, whichever comes first. Delaying acknowledgment allows multiple
packets to be acknowledged with a single ACK, thus reducing network traffic.
Depending on the attribute value for DELAYACKSTIME, it is possible for the TCP
receive window to fill before an ACK is generated. Change it to OFF if you do not
want the delay option to be in effect; that is, if you want an ACK sent after each
packet is received.
DELAYACKSTIME delayacks-time
specifies the length of delay before an ACK is sent for a packet when the
DELAYACKS attribute value is ON. This attribute value is expressed in intervals of
.01 seconds. The range is 0 through 50 (0 to .5 seconds).
Default: 8K bytes.
Default: 9216 bytes.
Default: 20800 bytes.
Default: ON.
Default: 5 (50 milliseconds).