Technical data

OpenVMS Server and Network

Configurations

There are several server and network configurations to consider before installing

TCP/IP Services for OpenVMS. This chapter describes the following concepts that

will enable you to make informed decisions about these configuration options:

• OpenVMS VAX and Alpha similarities and differences

• Cluster environments

• Multiple interfaces and multihoming

• Pseudointerfaces

• Serial lines

_________________________ Note _________________________

VAX development has limited continued support. VAX users should

consider migrating to Alpha, if possible.

Things to Consider

In planning your TCP/IP Services for OpenVMS configurations, consider the

following:

• Does the network contain VAX or Alpha systems, or both?

• Is my system running a DHCP server?

• Is my system running a DHCP client?

• How many interfaces does the system have?

• Do I have serial lines in my network? If so, for which systems are they used?

3.1 Understanding OpenVMS VAX and Alpha Systems

You need to consider several issues when you plan to add one or more OpenVMS

Alpha systems to your OpenVMS VAX computing environment. For full details

about the similarities and differences between OpenVMS Alpha and OpenVMS

VAX, refer to the OpenVMS Compatibility Between VAX and Alpha guide, which

is available on line at:

http://www.openvms.compaq.com/doc

3.1.1 User Environment

The user environment on OpenVMS Alpha is virtually the same as that on

OpenVMS VAX. Table 3–1 describes the similarities and differences.

OpenVMS Server and Network Configurations 3–1