Are you aware that your IBM zEnterprise server has a special function for z/VSE ?
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The zEnterprise servers (e.g. z114) with a newer firmware level introduce a function especially implemented for z/VSE, the z/VSE - z/VM IP Assist (z/VSE VIA).
z/VSE VIA provides the counterpart to the Linux Fast Path (LFP) on z/VSE.
LFP allows selected TCP/IP applications to communicate with the TCP/IP stack on Linux on System z without using a TCP/IP stack on z/VSE.
The traditional LFP function requires the user to install, administrate and configure a Linux on System z system.
The z/VSE VIA function provides an easy to use and ready to run z/VM guest image that offers all services required to use the z/VSE Linux Fast Path. It is not necessary to install and maintain
a Linux on System z server.
For more details please see the z/VSE TCP/IP Support book on our z/VSE Documentation page