TCP/IPv6 Configuration and Management Manual (G06.29+, H06.03+, J06.03+)

HP NonStop TCP/IPv6 Configuration and Management Manual—524523-012

3-1

Maximize the Benefit of the NonStop

TCP/IPv6 Architecture

This section provides planning information for maximizing the benefit of the NonStop

TCP/IPv6 environment. If you are not familiar with the NonStop TCP/IPv6 or the

Parallel Library TCP/IP architecture, read this section to learn how to take advantage

of the product features.

Definitions of NonStop TCP/IPv6 Terms

This section describes how your applications can take advantage of the NonStop

TCP/IPv6 architecture by analyzing applications in terms of the listening methods that

networking applications use.

This section uses these terms:



Scalable — refers to the architectural capacity to grow to accommodate growing

computing demands. A scalable architecture lets you add processing power as

your computing needs grow.



Parallel — refers to the division of work among different processes and/or

processors.



Load-balancing — refers to algorithms that balance workload between processes

and/or processors.

Scalable and parallel are closely related. An architecture is scalable if you can add

parallel processing to it. By dividing the workload among multiple processes and/or

processors, you can scale your applications to meet increasing demand. However,

parallel processing does not in and of itself provide scalability; you need load-balancing

algorithms and/or architecture to avoid bottlenecks when your computing needs grow.

With conventional TCP/IP, only one socket can be bound exclusively to a given

incoming port number. With NonStop TCP/IPv6, multiple server-process instances in a

system can all share the same incoming TCP (or UDP) port number if round-robin

filtering is enabled. Round-robin filtering lets you scale your system by multiplying the

number of listening processes and by taking better advantage of the load-balancing

applications available on NonStop servers.

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