The HiperSockets function, also known as internal queued direct input/output (internal QDIO or iQDIO), is an integrated function of the zEC12, z196, and z114 that provides users with attachments to up to 32 high-speed virtual LANs and is designed to minimize system and network overhead.
HiperSockets can be customized to accommodate varying traffic sizes. Because HiperSockets does not use an external network, it can free up system and network resources, helping to eliminate attachment costs while improving availability and performance.
HiperSockets eliminates the necessity of using I/O subsystem operations and traversing an external network connection to communicate between logical partitions in the same System z server. HiperSockets offers significant value in server consolidation by connecting many virtual servers, and can be used instead of certain coupling link configurations in a Parallel Sysplex environment.
HiperSockets internal networks on zEC12, z196, and z114 servers support two transport modes:
- Layer 2 (link layer)
- Layer 3 (network or IP layer)
Traffic can be IPv4 or IPv6, or non-IP such as AppleTalk, DECnet, IPX, NetBIOS, or SNA.
For more information on the Open Systems Adapter features and HiperSockets, refer to the IBM System z Connectivity Handbook, SG24-5444, which can be found at the following website:http://www.redbooks.ibm.com/
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