Port Switching Printer Sharing; Handling Z/Os Connectivity Problems; Ping Is Not Successful - InfoPrint 6500 Series User Manual

Port Switching Printer Sharing

To support printer sharing, 10/100Base-T ethernet printers automatically
switch among all attached ports (serial port, the twinax or coax port, or the
ethernet network port). Basically, the printer prints jobs for one port until no
new jobs appear and the port "times out". The printer then switches to the
next port and does the same thing.
To change the default "time out" value for a port, update the TIMEOUT value
for the port on the appropriate menu (Serial Interface, Ethernet, Twinax
Interface, or Coax Interface).

Handling z/OS Connectivity Problems

If you encounter problems when "ping"-ing a network printer from z/OS, here
is how to resolve them.

Ping is Not Successful

If the "ping" is not successful, verify the following:
•
•
•
If these items are all in order, consult your TCP/IP network administrator
about a possible network problem.
The printer is powered on.
The IP address is unique in the TCP/IP network.
If the IP address of the z/OS system is not unique, see your network
administrator to resolve the IP address problem.
The Maximum Transmission Unit (MTU) size of the IP packet for the z/OS
system is equal to the MTU size of the printer. For information about the
values recommended for the z/OS system, see "Modify the TCP/IP Profile
in z/OS" on page 137.
To change the MTU size for the z/OS system, change the GATEWAY
statement in the z/OS TCP/IP profile, and restart TCP/IP to pick up the
changes.
You cannot change the MTU size on an 10/100Base-T ethernet printer.
The MTU size is fixed at 1024 bytes.
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