TCP/IP (Parallel Library) Migration Guide

HP NonStop TCP/IP (Parallel Library) Migration Guide—522272-003
1-1
1 Introduction
This section provides an overview of the Parallel Library TCP/IP product, definitions of
the terms used in this guide, system requirements, product components and product
numbers, summary of the differences between conventional TCP/IP and Parallel
Library TCP/IP, a list of the current constraints of Parallel Library TCP/IP, product
compatibility, and coexistence and fallback strategy.
Overview
For the purposes of comparison, the previous product, NonStop TCP/IP, is referred to
in this guide as “conventional TCP/IP.” The subsystem name for conventional TCP/IP
is “TCPIP.” The subsystem name for Parallel Library TCP/IP is “PTCPIP.”
Parallel Library TCP/IP is a new HP networking product that provides increased
performance and scalability. The following list summarizes the main features of Parallel
Library TCP/IP:
•
Runs on NonStop S-series servers
•
Coexists and can run simultaneously with conventional TCP/IP on G06.08 and
later G-series RVUs
•
Runs in multiple processors
•
Uses a distributed architecture facilitating load distribution
•
Can be configured to make a multi-processor NonStop S-series system appear as
a single IP host to the outside world
•
Uses ServerNet to route connection requests directly from the ServerNet adapter
to the processor containing the listening application
•
Supports Ethernet adapters
Definitions
The Parallel Library TCP/IP architecture reassigns the functionality of the conventional
TCP/IP process to a shared runtime library (SRL), the application, a manager process,
a monitor process, and a socket access method process.
Table 1-1 on page 1-2 roughly identifies the equivalent features from conventional
TCP/IP that these new components replace. (An exact mapping is not required for a
general understanding of the Parallel Library TCP/IP components.)