Networking

Networks

With the exception of the manager, all nodes have a connection to any network. The manager only has no connection to the storage backend.

Name

CIDR

Description

management

192.168.16.0/20

SSH access via this network & all internal communication

wireguard

192.168.48.0/20

Is used by Wireguard.

provider

192.168.112.0/20

Is used to emulate an provider network.

Warning: The provider network is set up with VXLAN tunneling between the nodes and can currently only be used when OVN is being used as Neutron backend (this is the default). Trying to switch to OVS will cause a conflict, since OVS will also try to use VXLAN as tunnel mechanism. See https://github.com/osism/testbed/issues/1065 for details.

Nodes

The nodes always have the same postfix in the networks.

Name

CIDR

testbed-manager

192.168.X.5/20

testbed-node-Y

192.168.X.1Y/20

VIPs

On the local workstation you should put the following entries into /etc/hosts. Without these entries e.g. the VNC access to instances does not work.

Name

Address

Domain

external

192.168.16.254

api.testbed.osism.xyz

internal

192.168.16.9

api-int.testbed.osism.xyz