Ucsc Virtual Network - GE Mark VIeS System Manual

2.1.7 UCSC Virtual Network

The virtual network is a feature of the hypervisor used in UCSCH1 controllers. The virtual network transfers data between the
virtual machines (VMs) in the UCSCH1 controller like an Ethernet network transfers data between physical machines over a
physical network. The virtual network in the UCSCH1 controller is used to transfer data between the Mark VIe control
running in one VM, and the Embedded Field Agent (EFA) running in another VM. The EFA requires a connection to the
Mark VIe control and a connection to the cloud. However, the Mark VIe control must not have a connection to the cloud, so a
physical managed switch must be used to segment the networks. To resolve this issue, data is passed through the virtual
network so the EFA can connect directly to the cloud and eliminate the need of a managed switch.
The virtual network transfers data through memory shared between the VMs instead of the wires of a physical network. The
Mark VIe control uses a network firewall to prevent all other traffic.
Like a physical network, the virtual network must be configured with an IP address and subnet mask. The VMs in the
UCSCH1 controller must be on the same subnet to function properly. The Mark VIe virtual network is configured using the
ToolboxST application. The default configurations for the Mark VIe control and the EFA provide a working virtual network.
However, changing the configuration in one VM may interrupt communication over the virtual network until a corresponding
change is made to the other VM.
Note To configure virtual network adapters, refer to the ToolboxST User Guide for Mark VIeS Functional Safety Systems
(GEH-6862), the section Virtual Network Adapters. To configure the virtual network in the EFA, refer to the Field Agents
User Guide (GFK-2993).
32 GEH-6855_Vol_II GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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