cirros

Today is the last section of the local network, and we will verify the connectivity of the two local network.Launch new instance "CIRROS-VM3", network selection second_local_net.The IP assigned to the CIRROS-VM3 is 172.16.1.102.The CIRROS-VM3 is schedule to the control node, and the corresponding tap device is tap5395d19b-ed.The console shows that

650) this.width=650; "Src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20161113-1479026488351033984.jpg "/>In the previous section we created the Vxlan 100_net, which will deploy instance today and analyze the connectivity of the network.Launch new instance "CIRROS-VM1", network selection vxlan100.650) this.width=650; "Src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20161113-1479026488761089794.jpg "/>The IP assigned

650) this.width=650; "Title=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160906-1473115257894051500.png "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160906-1473115257894051500.png "alt=" Image544.5.png "style=" BORDER:0PX;FONT-SIZE:14PX; line-height:1.5; "/>In the previous section, CIRROS-VM1 was deployed in First_local_net, and a instance is deployed today, and the connectivity of two instance is verified.In

-1472912048071099662.png "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160903-1472912641542081870.jpg "style=" border:0px;white-space:normal;float:none; "/>what has changed in the underlying network? For instance "Cirros-vm1", Neutron creates a port in subnet, assigns IP and MAC addresses, and assigns port to CIRROS-VM1.650) this.width=650; "Title=" http://7xo6kd.com1.z0.glb.clouddn.c

The previous section first_local_net is ready, and the following creates the instance and connects it to the network.connect the instance to the First_local_netLaunch a instance, select First_local_net Network on the "Networking" tab page.Instance deployment succeeded with the assigned IP address 172.16.1.3what has changed in the underlying network? For instance "Cirros-vm1", Neutron creates a port in subnet, assigns IP and MAC addresses, and assigns

650) this.width=650; "Title=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160911-1473554430605005520.png "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160911-1473554586666076048.jpg "style=" border:0px;float:none; "/>Today is the last section of the local network, and we will verify the connectivity of the two local network.Launch new instance "CIRROS-VM3", network selection second_local_net.650) this.width=650

In the previous section we created "Flat_net", which will deploy instance and verify connectivity in this network.Launch the new instance "CIRROS-VM1", select Network Falt_net.The IP assigned to the CIRROS-VM1 is 172.16.1.103.The CIRROS-VM1 is schedule to the control node, the corresponding tap device is TAPC1875C7F-CB, and is already connected to bridge.The stru

subnet's Gateway IP 172.16.100.1 and 172.16.101.1.Here, we can foresee: 1. The router_100_101 has been connected to Subnet_172_16_100_0 and SUBNET_172_16_101_0. 2. Two subnet Gateway IPs have been set up on the router_100_101. 3. CIRROS-VM1 and CIRROS-VM3 should be able to communicate.Test it with a PING.650) this.width=650; "style=" White-space:normal;float:none; "title=" http://7xo6kd.com1.z0.glb.clouddn

650) this.width=650; "Src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20161227-1482841777873097679.jpg "/>The previous section deployed CIRROS-VM1 to First_local_net, and today we will deploy CIRROS-VM2 to the same network and create second_local_net.Connecting a second instance to First_local_netIn the same way launch instance "CIRROS-VM2", the

the environment, we recommend creating a host that requires only a size of "M1.nano". For testing purposes only, use the "M1.nano" version of the host to load the Cirros imageOpenStack flavorcreate--id 0--vcpus 1--ram--disk 1 M1.nanoa generates a key-value pairImport Demo Project voucherSourcedemo-openstackb generating and adding key pairsSSH-KEYGEN-Q-N ""OpenStack keypaircreate--public-key ~/.ssh/id_rsa.pub MyKey+-------------+--------------------

installation: You can observe the Virt-manager interface during installation: Knowing that the virtual machine is running, you can view the CPU usage: After the installation is completed as shown; Turn off the virtual machine and turn the virtual machine off by entering the shutdown command on the virtual machine; Based on the Virt-manager to create the management virtual machine is complete, very simple. We use the Cirros lightweight L

In the previous section, we created a floating IP for cirros-vm3 with the Web UI, and today we will analyze how it works.First look at the interface configuration of the router:As you can see, the floating IP is already configured on the router extranet interface qg-b8b32a88-03. To view NAT rules for router:Iptables adds two rules for handling floating IP:1. When router receives a packet from the extranet, if the destination address is floating IP 10.

Create a VM on openstack Because it is difficult to create an image. Wget https://launchpad.net/cirros/trunk/0.3.0/+download/cirros-0.3.0-x86_64-uec.tar.gz publish image # uec-publish-tarball cirros-0.3.0-x86_64-uec.tar.gz cirr x86_64 Warning: 'uec-publish-tarball 'is now to 'cloud-publish-tarball'. Please update your tools or docs Thu Jun 28 18:42:11 CST 2012 :=

The previous section deployed CIRROS-VM1 to First_local_net, and today we will deploy CIRROS-VM2 to the same network and create second_local_net.connecting a second instance to first_local_netIn the same way launch instance "CIRROS-VM2", the assigned IP is 172.16.1.4.The CIRROS-VM2 is also schedule to the control node,

/default.script ' should not being used in Cirros. Replaced by CIRROS-DHCPC.Sending Discover ...Sending Select for 172.16.1.100 ...Lease of 172.16.1.100 obtained, Lease time 7200WARN: '/usr/share/udhcpc/default.script ' should not being used in Cirros. Replaced by CIRROS-DHCPC.$[Email protected]:~$ sudo dnsmasq--strict

This section shows how to create an Image from the Web GUI and CLI two methods.OpenStack provides end users with a Web UI (Horizon) and a command-line CLI two switching interfaces.We both have to use it in two ways.Maybe some students think that since there is a more friendly Web UI, why use the CLI? Here Cloudman gives the following reasons: The functionality of the Web UI does not have a full CLI, and some operations only provide the CLI. Even though all features are available, the CL

]:~# service glance-registry restart[email protected]:~# service Glance-api restart2 The SQLite database is created by default because the MySQL database is being used, so to delete the Qlite database fileThird, OpenStack Image service authentication1) Configure the Image service client to use the API version 2.0[Email protected]:~# echo "Export os_image_api_version=2" | Tee-a admin-openrc.sh demo-openrc.sh2) Execute admin credentials[Email protected]:~# Source admin-openrc.sh3) Create a local z

-03 with the IP 10.10.10.2 configured above.Each interface in the router has a corresponding veth in namespace. If Veth is used to connect to a tenant network, the naming format is qr-xxx, such as qr-d568ba1a-74 and qr-e17162c5-00. If Veth is used to connect to an external network, the naming format is qg-xxx, such as qg-b8b32a88-03.View the routing table information for the router.You can see that the default gateway is 10.10.10.1. means that router_100_101 will be forwarded to Ext_net's gatewa