Xerox DocuPrint 180 IPS Installation Planning Manual page 154

DEFINING THE PRINTER TO THE HOST: TCP/IP ATTACHMENT
Item description
DATABUFFERPOOLSIZE
Data buffers
DATABUFFERPOOLSIZE
Buffer size
SMALLDATABUFFERPOOLSIZE 0
TINYDATABUFFERPOOLSIZE
KEEPALIVEOPTIONS
GATEWAY max_packet_size
Considerations for configuring TCP/IP
E-12
Table E-7.TCP/IP Profile dataset parameters – MVS
Source of
Default value
160 Installation
preferences
16384 Installation
preferences
Installation
preferences
0 Installation
preferences
Interval 120 Installation
sendgarbage preferences
false
Defaultsize is Installation
576 preferences
Following are some considerations for configuring TCP/IP for MVS:
for MVS
•
To specify a TCP/IP address space name other than the default,
TCPIP, code the following EXEC statement in the appropriate
PSF writer procedure:
STEP01
where tcp/ip_name is the name of the TCP/IP address space.
If this parameter is not coded, PSF uses the default name,
TCPIP. (For a full description of the PARM parameter, refer to
Print Services Facility/MVS: Diagnosis Guide and Reference.)
•
KEEPALIVEOPTIONS statement: PSF relies on TCP to
detect when a connection with the IPS printer is no longer
usable. When no data has been exchanged between PSF and
its connection partner, TCP sends keep-alive probes to the
connection partner periodically. These periodic probes, called
keep-alive transmissions, enable TCP to discover when a
XEROX DOCUPRINT 96/4635/180 IPS INSTALLATION PLANNING GUIDE
Range of
acceptable values Comments
7 to nnnn, where Specify at least 160
nnnn is limited by buffers.
available virtual
storage
8192 49152 Specify a buffer size of
at least 32768, if
12288 65536
possible.
16384 98304
24576 131072
28672 196608
32768 262144
0 to nnnn, where Specify at least 256
nnnn is limited by small data buffers.
available virtual
storage
0 to nnnn, where Specify at least 256 tiny
nnnn is limited by data buffers.
available virtual
storage
See Notes.
Can be from 576 to Max packet size
67108864, but parameter should be no
cannot be larger greater than 4472 bytes
than value specified in a 4 Mbps LAN
on LARGEENVE configuration, and
LOPEPOOLSIZE 17800 in a 16 Mbps
statement. LAN configuration.
Default MTU value in
IPS printer is 2052.
EXEC PGM=APSPPIEP,
PARM=(,,,,tcpip_name), REGION=4096K
Your value