Networking
Ubuntu Server 22.04 LTS includes several network device drivers that are specific to z/Architecture®.
For information about high-performing, secure networking and connectivity, see
www.ibm.com/it-infrastructure/z/capabilities/networking
Restrictions
For prerequisites and restrictions see the IBM® LinuxONE and IBM Z® architecture-specific information in the Ubuntu Server 22.04 LTS release notes athttps://discourse.ubuntu.com/t/jammy-jellyfish-release-notes
Example
In the example there are three Linux® instances; two of them run as z/VM® guests in one LPAR and a third Linux instance runs in another LPAR. Within z/VM, Linux instances can be connected through a guest LAN or VSWITCH. Within and between LPARs, you can connect Linux instances through HiperSockets. OSA-Express cards running in either non-QDIO mode (called LCS here) or in QDIO mode can connect the mainframe to an external network.
Table 1 lists which control units and device type combinations are supported by the network device drivers.
Device type | Control unit | Device driver | Comment |
---|---|---|---|
1732/01 | 1731/01 | qeth | OSA configured as OSD |
1732/02 | 1731/02 | qeth | OSA configured as OSX |
1732/05 | 1731/05 | qeth | HiperSockets |
0000/00 | 3088/1f | lcs | 2216 Nways Multiaccess Connector |
0000/00 | 3088/60 | lcs | OSA configured as OSE (non-QDIO) |