The books say "All SRB-based processing in stack" can be done on a zIIP,
depending on what level of zOS

If you are doing IPSEC (SSL encryption), you will be using a lot of CPU time
in stack. It could justify zIIP or two to offload the IPSEC work

Steve Finch


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of 
Jim Marshall
Sent: Friday, March 18, 2011 8:07 PM
To: [email protected]
Subject: zIIPs and TCP/IP usage

Right now I am looking at zIIPs and zAAPs planning for some new z196s.  One
area of interest is I read zIIPs can offload some of my TCP/IP work.  What are
people seeing as what is being offloaded within TCP/IP and how much.

Just from a high level is this any load of significance I could expect or is it
relatively low.  Say for instance I did not have any DB2 or XML, then has
anyone just got the zIIP because of TCP/IP.


I am discounting JAVA workload out of the picture to keep away from the
discussion of doing zIIPzAAPs and combining the two.  So just for the sake of
this discussion say I have no JAVA workload either.

Be interested in others actual experiences.     jim

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