HP-UX 11i Version 1.6 Release Notes

Networking
mbuf Functionality Obsolescence
Chapter 5
68
mbuf Functionality Obsolescence
The mbuf.h file and mbuf functionality within the kernel is obsolete.
Summary of Change
The mbuf entities are legacy networking drivers, based on EISA/NIO, buses used within
the kernel. These legacy drivers are obsoleted in HP-UX 11i v1.6, and the mbuf.h file
was removed.
Details of Change
The purpose of change is the obsolescence of the mbuf functionality, which are memory
management entities primarily used by legacy networking drivers
Impact
The driver that is impacted is NETTL. Other subsystems that have included the file
mbuf.h with no functionality usage and therefore no impact include PM, GRAPH, STREAMS,
btlan driver, Fibre Channel, Transport, intl100 driver, machdep, PPP, and user space
programs named, telnet, and gated.
Compatibility
This kernel specific functionality was not documented in previous releases, hence there
are no compatibility impacts with the obsolescence of the mbuf functionality.
Performance
No impact to performance.
Obsolescence
These legacy drivers are obsolete in HP-UX 11i v1.6. Removed mbuf.h BE file.
Documentation
No document changes necessary.