PRIMECLUSTER Global Link Services Configuration and AdministrationGuide 4.6Redundant Line Control Function

C.3.2 Support set for each redundant line switching mode

GLS provides highly reliable network communications for KVM hosts (host OS) and guest domains (guest OS).
For the detail of each redundant network method, see the following table.

Table C.1 Redundant network methods available on the KVM host (host OS) or the guest domain (guest OS)

Redundant network methods	KVM host (host OS)		KVM guest (guest OS)
	Connecting the virtual bridge to the virtual interface	Bundling the virtual bridge on the virtual interface
Fast switching mode	C	C	A
NIC switching mode	C	B	A
Virtual NIC mode	A	C	A
GS linkage mode	C	C	A

A: Supported (RHEL7 or later), B: Supported (RHEL7), C: Not supported

Note

• On the virtual interface of the host OS, the highly reliable communication of the guest OS cannot be configured.

• To configure the highly reliable communication of the guest OS, install GLS on the guest OS as well.

• When duplicating the interface that was created by SR-IOV, use the NIC switching mode.