TCP/IP (Parallel Library) Configuration and Management Manual

Configuring Parallel Library TCP/IP for Complex and
Heavy-Use Environments
HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
3-11
Configuration Example for the Standard Listening
Model
hop between the remote processors (1 and 3) is eliminated as data flows directly to the
local TCP/IP library and then out to the adapter.
A similar configuration example is shown in Configuration Example for the Hybrid
Listening Model on page 3-21.
Configuration Example for the Standard Listening Model
This example demonstrates the standard listener model discussed above (see
Standard Listening Model on page 3-2) configured with round-robin filtering enabled.
The startup files for establishing the standard listener model include commands to start
several processes that are essential in the Parallel Library TCP/IP environment,
commands to set different parameters, and SCF commands for adding and starting the
SLSA DEVICE and Parallel Library TCP/IP PROCESS, SUBNET, and ROUTE objects.
The files used in this example for starting and configuring the Parallel Library TCP/IP
environment include:
•
TCPIPUP1 starts the Parallel Library TCP/IP environment.
•
TCPIPUP2 starts the LISTNER processes. TCPIPUP2 also accesses an SCF file
that adds, configures, and starts Parallel Library TCP/IP objects.
•
SCFSBNT adds, configures, and starts the subnets and routes.
The first configuration example of a Parallel Library TCP/IP environment is shown in
Figure 3-7 on page 3-12. One LISTNER is configured in Processor 0 and its backup
process is in. As it receives connection requests on port 21, it spawns FTPSERV
Figure 3-6. Hybrid Listening Model in Parallel Library TCP/IP
VST0306.vsd
Distributor
Server
Server
Server
Processor 0 Processor 1 Processor 2 Processor 3
Server
Server
Server
Data
flow
Distributor
Server
Server
Server
G4SA
Server
Server
Server
One IP Host
TCP/IP
Library
TCP/IP
Library
TCP/IP
Library
TCP/IP
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