5.1 Two common networking methods

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5.1 Two common networking methods

Two common ways to connect Linux images in zSeries over a TCP/IP network are:

• Directly over a shared OSA adapter

• Over a z/VM guest LAN with TCP/IP as a router

Figure 5-1 shows a directly-connected shared OSA on the left side, and a z/VM Guest LAN with a z/VM TCP/IP router on the right side.

Figure 5-1: Two common methods of networking Linux on zSeries

Important: 

A virtual switch (VSWITCH) function has been introduced with z/VM 4.4. It looks like the Guest LAN shown on the right-hand side, but avoids the cost of running a virtual router and simplifies the routing.

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