> Given an IFL running zVM and several Linux/390 images, is it > better to fan out to all the Linux images from zVM's TCPIP, > or should TCPIP talk to a selection of images, with these > images each handling several end machines, more like a tree > structure?
If you have a version of z/VM that supports guest LANs, you should be using guest LANs and eliminating the point-to-point links wherever possible, if nothing else to keep from going insane handling the addressing. This provides a third option: using VM TCP (or a Linux TCP stack) to control a physical adapter and connecting to multiple guest LANs acting as a router. Guests on the LAN talk directly to each other (just as the do on an external network) and only inter-segment traffic passes through the "router". > And lastly: When I install SuSE, it lists the IUCV driver as > experimental. Is it experimental, but stable, and I should > take a look at it, or is it experimental, and unstable, and I > should stick to the vCTCA's I'm currently using? Get rid of the CTCs as fast as you can. If you don't have a guest LAN capable VM, then the IUCV stuff is about as stable as the CTC driver.
