Openstack

What types of networks OpenStack supports?

Difficulty: unrated

Source: bregman-arie/devops-exercises by Arie Bregman

Answer

OpenStack Neutron supports several network types:

  • Local: A local network is isolated to a single compute node and cannot be shared between multiple nodes.
  • Flat: A flat network is a simple, non-VLAN-tagged network that is shared across all compute nodes.
  • VLAN: A VLAN network uses 802.1q tagging to create isolated layer-2 broadcast domains.
  • VXLAN: VXLAN (Virtual Extensible LAN) is an overlay network technology that encapsulates layer-2 frames in UDP packets, allowing for a large number of isolated networks.
  • GRE: GRE (Generic Routing Encapsulation) is another overlay network technology that can be used to create private networks over a public network.