TCP/IPv6 Migration Guide
Migration Considerations
HP NonStop TCP/IPv6 Migration Guide—524524-004
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Multicast Operations
Multicast Operations
Changes have been made to multicast operations in NonStop TCP/IPv6 when the 
subsystem is run in INET6 or DUAL mode. New socket options exist for the 
setsockopt and setsockopt_nw calls that support IPv6 multicast operations. See 
the TCP/IP Programming Manual for more information.
Name Changes
Many, though not all, names of the Parallel Library TCP/IP processes and IDs have 
changed for NonStop TCP/IPv6. 
Name Change Implications
•
If you are using EMS filters, you must change the tokens. EMS now uses ZTC6.
•
If you run any programs that search for names, check whether your program needs 
to change to search for a different name. For example, if you have a program that 
searches for the program name associated with a TCP/IP process to determine if 
the process is a TCPSAM or TCPIP process, change your program to search for 
TCP6SAM instead of TCPSAM.
Table 3-1. Names Comparison Between Parallel Library TCP/IP and NonStop 
TCP/IPv6
This Parallel Library 
TCP/IP Name...
...Changes to this 
NonStop TCP/IPv6 Name
Subsystem ID ZTCP ZTC6
Subsystem Name PTCPIP TCPIPV6
Manager Process TCPMAN TCP6MAN
 MAN Naming Convention $ZZTCP $ZZTCP
 TCPMAN Device Type, Subtype 68/0 72/0
Monitor Process TCPMON TCP6MON
 MON Naming Convention  $ZZTCP.#ZPTm (m is 
the number of the 
processor in which the 
monitor is running)
$ZZTCP.#ZPTm (m is the 
number of the processor in 
which the monitor is 
running)
Socket Access method TCPSAM TCP6SAM
 Device Type, Subtype 48/0 48/0
SRL (NonStop S-series servers) ZTCPSRL ZTCP6SRL
DLL (Integrity NonStop servers) Not applicable (Parallel 
Library TCP/IP is not 
supported on Integrity 
NonStop servers)
ZTCP6DLL










