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Switched major node z/OS Communications Server: SNA Network Implementation Guide SC27-3672-01 |
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The peripheral nodes and associated logical units that are attached to the token ring are defined in VTAM® using a switched major node. As shown in the following sample, the same coding that is normally
used for an SDLC switched peripheral node is used for a token-ring
connection.
For information about the ANS operand and error recovery activation, see Using error recovery activation. If VTAM is to establish the connection to the token-ring-attached peripheral node (for example, use an automatic logon [LOGAPPL] to an application), also code a PATH definition statement in the switched major node. The DIALNO operand on the PATH definition statement for the callout operation can be used to specify the TIC number, the system access point address, and the token-ring address of the peripheral node. In the following sample, the TIC number is 02, the system access
point address is 04, and the locally administered token-ring address
of the peripheral node is the last four digits of the user's telephone
extension.
You can also use the DLCADDR operand
on the PATH definition statement for the callout operation to specify
dial information. Use of DLCADDR allows specification of up to 250
bytes of dial information (versus the 32-character limit of the DIALNO
operand). The information from the DIALNO operand above would be coded
as follows using the DLCADDR operand. The DLCADDR operands specify
the data link control type (TR for token ring), the port address,
the DSAP, and the destination address, respectively.
Note: DLCADDR information is used by the DLC provider, and VTAM verifies only the syntax of
the DLCADDR operand.
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Copyright IBM Corporation 1990, 2014
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