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Token ring TCP/IP Attachment Information

Table 24 lists all configuration items, what each item is used for, and the allowable value options for each item. The factory-set default values are underlined.

Table 24. Token Ring TCP/IP Attachment Items
Configuration Item Description Value Options
Token Ring TCP/IP Installed Specifies if the Token Ring adapter is installed. Yes or No
TCP Port Specifies the TCP socket address of the attachment.
  1. Only one address is required for operating a simplex system.
  2. If your installation runs in dual simplex and duplex mode, specify the same TCP Port value for duplex mode as you do for Printer 1 in dual simplex mode. (IBM recommends using the default value of 5001.) Also, make sure you specify a unique value for Printer 2 in simplex mode; Printer 1 and Printer 2 cannot use the same value. (If you use the default value of 5001, for Printer 1, IBM recommends using 5002 as the value for Printer 2.)
  3. The TCP Port numbers specified in the printer configuration must match the PORT numbers assigned in the host PSF system.
  4. Because Printer 1 in a dual simplex system and the complete system in duplex system share a common port number, operational procedures must be defined to distinguish between duplex and dual simplex printing. The easiest way to manage this is to assign separate queues for duplex versus dual simplex output (for PSF/2 and PSF/6000), and to assign at least a unique job class for duplex jobs (for S/390 host PSF systems).
5001 to 65536.
IP Address Specifies the Internet protocol (IP) address of the printer in dotted decimal format. Get this value from your LAN administrator. This value must match the IP address value in the host PSF configuration.

This value is unique to a duplex system, and is the same regardless of whether the printer is in duplex or dual-simplex mode.

X.X.X.X where X <= 255.
Subnet Mask Specifies the mask that identifies the local subnet in dotted decimal format. Get this value from your LAN administrator. If you do not have a local subnet, leave this field blank. X.X.X.X where X <= 255
Default Gateway Address Specifies the IP address of the default gateway in dotted decimal format. Get this value from your LAN administrator. X.X.X.X where X <= 255
MTU Size Specifies the Maximum Transmission Unit (MTU) - maximum allowable length of IP packets. 60 to 4096
Hardware address Specifies the TCP/IP Token Ring adapter ROM address. This address cannot be changed.
Alternate address (Local adapter address) Sets the unique LAN adapter address for the network. The address must be different from other addresses on the LAN.
New cards are restricted to values from X'4000 0000 0000' to X'FFFF FFFF FFFF'.
Ring Speed Specifies the ring speed of the network to which the adapter attaches. The value must match the speed of the network or the network may stop operating. 4 or 16
Confine Broadcast Specifies if broadcast packets (that is, Address Resolution Protocol packets) are enabled to cross bridges to other rings. Yes or No