In the March 2008 Redbook title "System Programmer's Guide to: Workload 
Manager" it has a section that reads:

----
3.6.3 zSeries Application Assist Processor (zAAP)

The benefits of using a zAAP processor to execute Java code are saving CPU 
cycles in IP stacks and in the firewalls due to the connectivity simplification.
----

I understand the JVM is the only authorized zAAP user.  Does the above part 
from the manual imply that the IP stack and firewalls are written in JAVA, thus 
the CPU savings?  And, what is the connectivity simplification being referenced?

Thanks, Dennis

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