This document describes the enhancements to Entire Net-Work Administration in this release.
| Category | Enhancements |
|---|---|
| Entire Net-Work Administration 6.3 SP2 Enhancements | Support for IBM Socket Option TCP_NODELAY |
| Entire Net-Work Administration 6.3 SP1 Enhancements | Reusable Address Space ID (ASID) Support |
| IPv6 Support | |
| e-Business Connections to Open System Databases | |
| New Simple Connection Line Driver (TCPX) DRIVER and LINK Parameters | |
| New Simple Connection Line Driver(TCPX) LINK Command |
Entire Net-Work Administration 6.3 SP2 introduces support for the IBM socket option TCP_NODELAY. TCP_NODELAY indicates whether data sent over the socket is subject to the Nagle algorithm (RFC 896). For more information, refer to your IBM documentation.
Entire Net-Work Administration 6.3 SP2 provides new TCPX DRIVER and LINK parameters, called NODELAY, used to indicate whether the IBM socket option TCP_NODELAY is enabled or disabled for a link.
Note:
The setting of this parameter is only effective if the API parameter
is also set to "OES" or
"HPS."
For more information about TCPX DRIVER and LINK statement parameters, read TCPX DRIVER Statement and TCPX LINK Statement.
Entire Net-Work Administration 6.3 supports reusable address space IDs (ASIDs) in z/OS environments. So you can now specify the z/OS REUSASID system parameter on the start command for Entire Net-Work. For example:
/S NETWORK,REUSASID=YES
For more information about the REUSASID system parameter, refer to your z/OS documentation.
This release introduces support for IPv6 communications via the Entire Net-Work TCP/IP and Simple Connection line drivers.
A new ALLOWIP6 parameter has been added to the TCPX DRIVER statement. This parameter allows you to specify whether the line driver will accept connections using IPv6 communication. For more information about TCPX DRIVER statement parameters, read TCPX DRIVER Statement.
A new V6IPADDR parameter has been added to the TCPX LINK statement. This parameter allows you to specify the IPv6 address of the remote host associated with the line driver link. For more information about TCPX LINK statement parameters, read TCPX LINK Statement.
This version of Entire Net-Work Administration includes enhancements to the Simple Connection Line Driver (TCPX) so it now allows e-business connections between classic mainframe applications and non-mainframe databases served by Entire Net-Work 7 in open systems environments. This was previously only possible using classic TCP/IP line driver (TCPI) connections to Entire Net-Work 7.
Note:
Mainframe-to-mainframe connections are not allowed via the Simple Connection Line Driver
(TCPX).
For more information, read Simple Connection Line Driver Overview.
This release introduces new DRIVER and LINK parameters to support IPv6 communications via Simple Connection (TCPX) line driver connections in Entire Net-Work Administration. Additional LINK statement parameters have been added to mirror parameters of the same name in the TCP/IP (TCPI) line driver. Finally, it also introduces API parameter support for the z/VSE TCP/IP stack from Barnard Software, Inc.
A new TCPX DRIVER parameter, ALLOWIP6, has been added which allows you to specify whether the line driver will accept connections using IPv6 communication.
A new TCPX LINK parameter, V6IPADDR, has been added which allows you to specify the IPv6 address of the remote host associated with the TCPX link.
LINK statement parameters ACQUIRE, RESTART, and WEIGHT have been added to the Simple Connection Line Driver (TCPX). These parameters mirror the parameters of the same name used in the LINK statement of the Entire Net-Work TCP/IP line driver (TCPI).
Finally, the new value option EZA has been added for the TCPX DRIVER parameter API. This parameter value loads the z/VSE interface NWTCPEZA. This value can be used only with the TCP/IP stack from Barnard Software, Inc.
For more information about TCPX DRIVER statement parameters, read TCPX DRIVER Statement. For more information about TCPX LINK statement parameters, read TCPX LINK Statement.
The CONNECT operator command has been added to the Simple Connection Line Driver (TCPX) LINK commands. This command mirrors the CONNECT LINK operator command used by the TCP/IP line driver.
For more information, read Simple Connection Line Driver Operator Commands.