Shared (VLAN or Multi-Netted) Ethernet InterfacesΒΆ
The management, cluster host, OAM, and physical networks can share Ethernet or aggregated Ethernet interfaces using VLAN tagging or IP Multi-Netting.
The OAM, internal management, and cluster host networks can use VLAN tagging or IP Multi-Tagging, allowing them to share an Ethernet or aggregated Ethernet interface with other networks. The one restriction is that if the internal management network is implemented as a VLAN-tagged network, then it must be on the physical interface used for PXE booting.
The following arrangements are possible:
One interface for the internal management network and internal cluster host network using multi-netting, another interface for OAM (on which container workloads are exposed externally) and one or more additional interfaces data networks. This is the default configuration.
One interface for the internal management network, another interface for the OAM network, a third interface for the cluster host network, and one or more additional interfaces for data networks.
One interface for the internal management network, with the OAM and cluster host networks also implemented on the interface using VLAN tagging, and additional interfaces for data networks .
For some typical interface scenarios, see Managed Kubernetes Cluster Hardware Requirements.
For more information about configuring VLAN interfaces, see StarlingX Node Configuration and Management: Configure VLAN Interfaces Using the CLI.