Xerox DocuPrint 92C Installation Planning Manual page 127

ACBPOOLSIZE
ADDRESSTRANSLATIONPOOLSIZE
CCBPOOLSIZE
DATABUFFERPOOLSIZE
ENVELOPEPOOLSIZE
IPROUTPOOLSIZE
LARGEENVELOPEPOOLSIZE
RCBPOOLSIZE
SCBPOOLSIZE
SKCBPOOLSIZE
SMALLDATABUFFERPOOLSIZE
TCBPOOLSIZE
TINYDATABUFFERPOOLSIZE
UCBPOOLSIZE
KEEPALIVEOPTIONS
ENDKEEPALIVEOPTIONS
GATEWAY
; * Network First hop
9
DEFAULTNET
XEROX DOCUPRINT 92C IPS INSTALLATION PLANNING GUIDE
DEFINING THE PRINTER TO THE HOST: TCP/IP ATTACHMENT
•
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
connection is no longer usable, even if the connection partner is
abruptly powered off or is no longer accessible through the
network.
The frequency of keep-alive transmissions is controlled by the
INTERVAL parameter on the KEEPALIVEOPTIONS statement.
The frequency applies to all TCP applications that direct TCP to
send keep-alive transmissions. The default frequency is after
about two hours of inactivity.
For printing on the IPS, it is recommended you specify a shorter
interval than the default—such as 10 minutes—for the interval
between keep-alive transmissions. Also, unless any target host
requires that the keep-alive packet contain data, specify
SENDGARBAGE FALSE. For example:
KEEPALIVEOPTIONS INTERVAL 10 SENDGARBAGE FALSE
ENDKEEPALIVEOPTIONS
If you change any of the values in the TCP/IP profile, restart
TCP/IP to pick up the changes.
Table E-8.TCP/IP Profile dataset statements example – MVS
INTERVAL 10
Linkname Packet size Subnet mask Subnet value
= BPCLAN
9.99.12.254 BPCLAN
References: For information about the TCP/IP profile and the
statements described in this section, refer to the following
publications:
•
TCP/IP for MVS: Customization and Administration Guide
•
TCP/IP: Performance Tuning Guide
1000
1500
150
160 32768
750
300
50
50
256
256
256
512
256
100
SENDGARBAGE TRUE
2000 0.255.255.0 0.99.12.0
2000 0.255.255.0 0
E-13