topic Re: UCX & TCP/IP in Operating System - OpenVMS

UCX & TCP/IP

Sk Noorul Hassan — Wed, 02 Mar 2005 07:15:13 GMT

Difference between TCP/IP and UCX with respect to VMS. Please pass on the link if avlble.

Re: UCX & TCP/IP

Kris Clippeleyr — Wed, 02 Mar 2005 08:18:25 GMT

Hi,

UCX is the name of an older implementation of the TCPI/IP stack for VMS. I think to last version was 4.2.
TCP/IP is the name of the new implementation that started with V5.0, current version is V5.5 for VMS 8.2.

Regards,
Kris (aka Qkcl)

Re: UCX & TCP/IP

Volker Halle — Wed, 02 Mar 2005 08:52:41 GMT

Hi,

you normally only have one choice, if you want TCP/IP functionality from HP (Compaq/Digital), depending on the architecture and version of OpenVMS in use:

- up to OpenVMS VAX V7.0, you had to install UCX
- OpenVMS VAX V7.1 allowed both UCX V4.2 or TCPIP V5.0
- OpenVMS VAX V7.2 or higher requires TCPIP

- OpenVMS Alpha up to V7.0 required UCX
- OpenVMS Alpha V7.1 allowed both UCX or TCPIP
- OpenVMS Alpha V7.1-2 or higher requires TCPIP

UCX or TCPIP provide a TCPIP stack for OpenVMS VAX or Alpha with the same kind of functionality. More recent version obviously provide additional features, stability etc.

Volker.

Re: UCX & TCP/IP

Sk Noorul Hassan — Fri, 04 Mar 2005 06:24:10 GMT

Hi,

Thanks a lot. Can u pls give few operational and functional differences between UCX 4.2 and TCP/IP 5.0 or above

or

advantages of TCP/Ip 5.0 over UCX 4.2

Re: UCX & TCP/IP

Volker Halle — Fri, 04 Mar 2005 06:54:25 GMT

It's sometimes hard to find documentation about these old products, but you're lucky. The TCPIP V5.0 Release Notes can be found here:

http://tigger.stcloudstate.edu/~tigger/openvms/72final/6551/6551.HTML

Changes and New Features are listed in Chapter 1.1

Volker.

Re: UCX & TCP/IP

Ian Miller. — Fri, 04 Mar 2005 06:58:53 GMT

Note that TCPIP Services for OpenVMS V5.0 was not good. Use a later version if you are going to upgrade.