HP-UX 11i Version 2 Release Notes (October 2003)

Internet and Networking
Network Transport (ARPA)
Chapter 6
166
This change incorporates the DLPI OOP header to carry the type of checksum
offload and the offloaded checksum itself.
The Transport internal kernel header file, net/cko.h, has been modified to support
this enhancement.
Again, for more information, please see “HP-UX Data Link Provider Interface
(DLPI)” on page 126.
• Support for dump reading by netstat and arp has been permanently removed as of
HP-UX 11i v2.
Until HP-UX 11i v1, the commands netstat and arp have provided a means for
reporting information from a crash dump as well as from a live HP-UX system.
Starting with HP-UX 11i v1.5, support for reading crash dumps has not been
available for Itanium-based systems. Because HP-UX 11i v1.5 and 11i v1.6 only
supported Itanium-based systems, this effectively means that dump reading in
netstat and arp have not been supported since HP-UX 11i v1.
• IPv6 transport
On HP-UX 11i v2, IPv6 transport is supported. For more information, see “IPv6
Support” on page 149.
Impact
• There is no impact to user space applications.
• For third-party kernel development, please see the Driver Development Guide,
available from the Developer and Solution Partner Program (DSPP) at
http://h21007.www2.hp.com/dev/.
• You will no longer be able to use arp and netstat to obtain information from crash
dumps.
Compatibility
Kernel IP Stream modules that previously used options or fastpath negotiation features
or looked into network data packets in previous versions must make changes and
recompile for HP-UX 11i v2.
Performance
There are no performance issues.
Documentation
For further information see the following:
• DLPI Programmers Guide, available at http://www.docs.hp.com
• Driver Development Guide, available from the Developer and Solution Partner
Program (DSPP) at http://h21007.www2.hp.com/dev/
• “HP-UX Data Link Provider Interface (DLPI)” on page 126
• the header file <sys/dlpi_ext.h>