IPv4 to IPv6 static NAT-PT by Linux box running NAPTD
If a client in IPv4-only network, wants to access servers in IPv6-only network, a Linux box can be setup between 2 networks, working as a gateway. »
Neutron L2 Gateway + HP 5930 switch OVSDB integration, for VXLAN bridging and routing
Neutron L2 Gateway is a new Openstack project working as a Neutron service plugin. It supports only one use case at the moment, which is to »
Specify floating IP address during creation
Starting from Kilo, neutron supports user to specify a floating IP during creation. Before Kilo, neutron allocates floating IP automatically, user has no choice to specify »
Neutron ML2 Port Security
A new NFV feature, ML2 port security is introduced in Openstack Kilo release. Before this feature, when a neutron port is attached to a VM instance, »
Metadata service in DHCP namespace
How metadata service work by default (in router namespace) In Openstack, by default, you need L3 agent to make metadata service working, which means you need »
How L3 and DHCP agents HA work in Red Hat OSP7
In Red Hat Openstack Platform 7, l3-agent and dhcp-agents are running in active-active on each controller node, instead of active-standby in OSP6. [root@overcloud-controller-2 ~]# pcs status »
NFS backend for Openstack Glance/Cinder/Instance-store
In this post, let’s go through how to configure NFS as unified storage backend for Openstack Glance, Cinder and shared instance-store, also we look at »
Building redundant and distributed L3 network in Juno
Before Juno, when we deploy Openstack in production, there always is a painful point about L3 Agent: High availability and performance bottleneck. Now Juno comes with »
How to use meta-data service for VM with provider network
When VM is using provider network, the traffic to network outside cloud passes through physical Router via L2 network, which means in VM, the default route »
How ML2/VXLAN works
My setup: 1 controller node + 2 compute nodes RDO Havana 2013.2.2, CentOS 6.5, OpenVSwitch 1.11.0 VXLAN local IPs: controller: 10.142. »