TCP/IPv6 Configuration and Management Manual (G06.24+)

Overview of NonStop TCP/IPv6

HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008

2-2

Compatibility

NonStop TCP/IPv6 coexists with conventional TCP/IP on NonStop S-series servers

and on Integrity NonStop servers. An application can have sockets open in both the

NonStop TCP/IPv6 and conventional TCP/IP environments. NonStop TCP/IPv6 cannot

coexist on the same system as Parallel Library TCP/IP.

Existing TCP/IP applications using the D30 and above socket library run transparently

on NonStop TCP/IPv6 without needing to be recompiled. (Using the IPv6 functionality,

however, does require changes to the application. See NonStop TCP/IPv6 Operating

Modes on page 2-20, the TCP/IP Programming Manual, and the TCP/IPv6 Migration

Guide for information about application changes needed for IPv6.)

For more information about compatibility, see Strategy for Coexistence With

Conventional TCP/IP on page 6-26.

High-Level Comparison of the Three NonStop

Server TCP/IP Subsystems

Table 2-1 on page 2-3 summarizes the differences between conventional TCP/IP,

Parallel Library TCP/IP, and NonStop TCP/IPv6. For considerations about migrating

between these three subsystems, see the TCP/IPv6 Migration Guide.

Note. Parallel Library TCP/IP is not supported on Integrity NonStop servers.