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2.8. OpenStack Networking
- Port security with ML2 and Open vSwitch
- OpenStack Networking applies anti-spoofing firewall rules by default, with the result that a VM cannot communicate using a MAC or IP address that is not configured on its network port. In Red Hat Enterprise Linux OpenStack Platform 7, it is now possible to enable or disable the security-group feature on a per port basis, using the new 'port-security-enabled' attribute. Consequently, Project administrators get granular control over the firewall's position in the network topology.
- Enhancements to L3 High Availability
- View the state of HA routers - Administrators are now able to view the state of High Availability routers on each node, and specifically, where the active instance is hosted. This new functionality also serves as a sanity test and offers assurance that a router is indeed active on only one node.Support for multiple subnets on external networks - HA routers are now able to allocate floating IP addresses to all on-link subnets.
- LBaaS v2 API
- LBaaS version 2.0 allows for increased robustness in load-balancing deployments, including support for SSL/TLS termination. This update to v2 includes a redesign of the LBaaS architecture and the HAProxy reference plugin.
- Tech Preview - DVR integration between VLANs and VXLAN/GRE
- Red Hat Enterprise Linux OpenStack Platform 7.0 (kilo) adds support for interconnecting between VLAN and VXLAN/GRE when using distributed routers. This integration allows connectivity between VLANs and VXLAN/GRE tunnels in DVR.
- IPv6 Support
- In RHEL OpenStack Platform 7, the core OpenStack services are able to operate over IPv6 networks. At present, RHEL OpenStack Platform director will not deploy or manage nodes over IPv6-based networks.

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