>>-+-------------------------+--------------------------------->< | (1) | '-NODETYPE--=--+-EN-+-----' '-NN-'
- NODETYPE enables APPN function. The combination of HOSTSA, NODETYPE, and SACONNS determines the configuration (subarea node, interchange node, migration data host, network node, or end node).
Possible node configurations and their functional ability are summarized in Table 1.
Specifies the node type that is presented to other APPN nodes. When NODETYPE is not specified, the node operates as a subarea node and all type 2.1 connections are managed as LEN connections. Also, the new start options, definition statements, and operands pertinent to APPN function are ignored.
When NODETYPE is specified, the HOSTSA and/or SACONNS start options determine whether this VTAM® will also function as a subarea node. If HOSTSA= is coded and SACONNS= is not coded or SACONNS=YES is coded, then this VTAM will provide subarea function. If HOSTSA= is not coded, or HOSTSA= is coded and SACONNS=NO is coded, then this VTAM will not provide subarea function.
If you want a pure APPN node, then you should not code the HOSTSA start option or you must code SACONNS=NO. Additionally, the DYNASSCP, GWSSCP, and MAXSUBA start options should not be coded because they have no effect. If you code them, the node will come up, but you will get error messages.
- NODETYPE=EN
- Specifies that the node is an end node. When NODETYPE=EN and subarea function has been enabled (see above), the node operates as a migration data host. If subarea function has not been enabled, the node operates as a pure end node. When the node is configured as a migration data host or end node, attempts to activate an NCP will fail. NCPs can be contacted, however.
- NODETYPE=NN
- Specifies that the node is a network node. When NODETYPE=NN and subarea function has been enabled (see above), the node operates as an interchange node. If subarea function has not been enabled, the node operates as a pure network node. Interchange nodes can own NCPs and their resources.