Physical networks layout

The diagrams below illustrate the recommended physical networks layout for a Mirantis OpenStack for Kubernetes (MOS) deployment with Ceph.

The list of recommendations applicable to all types of nodes include:

  • Use the Link Aggregation Control Protocol (LACP) bonding mode with MC-LAG domains configured on leaf switches. This corresponds to the 802.3ad bond mode on hosts.

  • Use ports from different multi-port NICs when creating bonds. This makes network connections redundant if failure of a single NIC occurs.

  • Configure the ports that connect servers to the PXE network with PXE VLAN as native or untagged. On these ports, configure LACP fallback to ensure that the servers can reach DHCP server and boot over network.

Container Cloud Management cluster physical networking

The following diagram illustrates physical and L2 connections of the Container Cloud management cluster.

../../_images/mos-cluster-mgmt-physical.png

MOS managed cluster physical networking

Kubernetes manager nodes

The following diagram illustrates physical and L2 network connections of the Kubernetes manager nodes in a MOS cluster.

Caution

Such configuration does not apply to a compact control plane MOS installation. See Create a managed cluster.

../../_images/mos-cluster-k8s-mgr-physical.png

OpenStack controller nodes

The following diagram illustrates physical and L2 network connections of the control plane nodes in a MOS cluster.

../../_images/mos-cluster-control-physical.png

OpenStack compute nodes

The following diagram illustrates physical and L2 network connections of the compute nodes in a MOS cluster.

../../_images/mos-cluster-compute-physical.png

OpenStack storage nodes

The following diagram illustrates physical and L2 network connections of the storage nodes in a MOS cluster.

../../_images/mos-cluster-storage-physical.png