TCP/IPv6 Migration Guide
HP NonStop TCP/IPv6 Migration Guide—524524-004
3-1
3 Migration Considerations
This section discusses the differences between NonStop TCP/IP and NonStop 
TCP/IPv6 and the differences between Parallel Library TCP/IP and NonStop TCP/IPv6.
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Differences Between NonStop TCP/IP and NonStop TCP/IPv6
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Differences Between Parallel Library TCP/IP and NonStop TCP/IPv6 on page 3-11
NonStop TCP/IPv6, when run in INET or DUAL mode, is transparent for Guardian and 
OSS socket applications; specifying a TCP6SAM process in place of the NonStop 
TCP/IP or the TCPSAM process is all that is required to access NonStop TCP/IPv6. 
However, there are considerations that affect different kinds of applications. Those 
considerations are explained in this section. In addition, there are changes that must 
be made for applications to use the IPv6 (INET6 mode) features of NonStop TCP/IPv6.
For complete SCF command syntax as well as subsystem configuration information 
and methods of maximizing the benefits of the NonStop TCP/IPv6 architecture, see the 
TCP/IPv6 Configuration and Management Manual. For information about porting 
applications to IPv6, see the TCP/IP Programming Manual.
Differences Between NonStop TCP/IP and 
NonStop TCP/IPv6
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Application Behavior on page 3-2
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Applications: Restricting Access to Network Interfaces on page 3-2
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Attribute Defaults on page 3-2
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Configuration Files on page 3-4
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DEFINEs on page 3-4
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Error Treatment on page 3-4
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Fault-Tolerant Behavior on page 3-5
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Firewall Considerations on page 3-5
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Management Interfaces on page 3-5
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NonStop Operations on page 3-7
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Persistence Manager on page 3-7
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Platform on page 3-8
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Resource Management on page 3-8
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Round-Robin Filtering on page 3-9
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Shared Run-Time Library (SRL) on page 3-9










