In the last section we discussed flat network Principle , Let's create it today "flat_net" And analyze the implementation of the underlying network .

open a menu Admin -> Networks, Click on “Create Network” Button .

Show create page .

Provider Network Type choice “Flat”. Physical Network Fill in “default”, And ml2_conf.ini in flat_networks Consistent parameters .

Click on “Create Network”,flat_net Create success .

Click on flat_net link , Get into network Configuration page , Not yet subnet, Click on “Create Subnet” Button .

Set up IP The address is “172.16.1.0/24”.

Click on “Next”, Set up IP Address range is 172.16.1.101-172.16.1.200.

Click on “Create”,subnet Create success .

What happened to the underlying network

perform brctl show, View the current network structure of the control node .

Neutron Automatically created flat_net The corresponding bridge brqf153b42f-c3, as well as dhcp Of tap equipment tap19a0ed3d-fe.
in addition ,tap19a0ed3d-fe And physical network card eth1 All connected to bridge.

here flat_net The structure is as shown in the figure ：

flat_net  Be ready , The next section will deploy instance Here we are flat The Internet .

establish flat network - Every day 5 Minutes to play OpenStack（87） More articles about

1. establish OVS flat network - Every day 5 Minutes to play OpenStack（134）

   The last section is done flat Configuration work , Created today OVS flat network.Admin -> Networks, Click on "Create Network" Button . Show create page ...

2. stay ML2 Middle configuration OVS flat network - Every day 5 Minutes to play OpenStack（133）

   As discussed earlier OVS local network, Start today flat network. flat network Is not to bring tag Network of , The host's physical network card communicates with flat network Connect , ...

3. Deploy instance To OVS flat network - Every day 5 Minutes to play OpenStack（135）

   The last section created OVS flat network, Today we deploy instance And verify flat Network connectivity . launch new instance "cirros-vm1", network ...

4. establish OVS Local Network - Every day 5 Minutes to play OpenStack（129）

   We finished the last section OVS Preparatory work , This section starts from the most basic local network Begin to learn .local network It will not connect to any physical network card of the host , Traffic is limited to the host , At the same time, it's not related to any VL ...

5. Create a second local network - Every day 5 Minutes to play OpenStack（84）

   GUI There are two places to create network: 1. Project -> Network -> Networks This is the average user in their own tenant Created in network The place of . 2 ...

6. stay ML2 Middle configuration OVS vlan network - Every day 5 Minutes to play OpenStack（136）

   We have learned before OVS Of local The Internet and falt The Internet , Let's start today vlan The Internet . vlan network It's with tag Network of . stay Open vSwitch In this way , Different ...

7. stay ML2 in enable local network - Every day 5 Minutes to play OpenStack（79）

   We have finished a series of preparatory work , This section begins by creating various Neutorn The Internet , Let's first discuss local network. local network Is not connected to any physical network card of the host , It's not related to anything VL ...

8. Deploy another instance and Local Network - Every day 5 Minutes to play OpenStack（131）

   The last section deployed cirros-vm1 To first_local_net, Today we're going to deploy cirros-vm2 To the same network , And create second_local_net. Connect the second instance To ...

9. establish Pool & VIP - Every day 5 Minutes to play OpenStack（122）

   The last section is finished LBaaS To configure , Today we begin to achieve the following LBaaS Environmental Science . The environment is described as follows : 1. Create a Pool “web servers”. 2. Two pool member “WEB1” and “ ...

Random recommendation

1. ACM: Racing Gems - The longest increasing sequence

   Racing Gems   You are playing a racing game.  Your character starts at the x axis (y = 0) and procee ...

2. [VBS] Power off prank

   One . About scripts 1) The script in this article does the following : Random generation 3 Two digit addition problem , If the answer is wrong, then 60 Shut down in seconds . If it's all right , Will also be in 60 Power off after , But the script will prompt you to remove the scheduled shutdown 2) While the script is running , Exit this script ...

3. TSP problem

   I wrote a similar topic before ,Uva 1347. http://www.cnblogs.com/TreeDream/p/5981535.html This topic and TSP The problem is very close , It's just a weird description , From the most ...

4. Label controller ,UITabBarController

   Be careful : 1.tabbar The height cannot be set , It can be done by _tabbar.tabbar.frame Set up tabbar The location of 2.tabbar After adding the same view to different pages, what is added on that side doesn't work , Only the last one has the added career ...

5. java Garbage collection mechanism Reference type

   Java An important feature of the language is the introduction of an automatic memory management mechanism , So that developers do not have to manage the memory in the application themselves .C/C++ Developers need to go through malloc/free  and new/delete And other functions to explicitly allocate and release memory . This is right ...

6. Use Jenkins+gitlab Exclude branches when building automation

   Here's what we're trying to do gitlab When there is a change in the code on, it will automatically send to Jenkins send out web Hook request , Trigger the specified action : But by default , All branches ( Such as test environment and pre production ) It's always triggered when the code changes , You can do it in Jenkins Project design of ...

7. use PS Drawing three-dimensional character effect tutorial

   1.  Create a new transparent canvas . 2.  Use the selection to draw a circle 3.  Use the gradient tool to draw gradients ( Self made color ) 4.  Select the Blender Brush tool and press ALT Click on the layer filled with color 5.  New canvas filled with black   Draw with a blend brush . ...

8. python Based on learning 14---- Regular expressions

   Regular expression is a logical formula for string operation , It is to use some specific characters defined in advance . And the combination of these specific characters , Form a “ Rule string ”, This “ Rule string ” A filter logic used to express strings . stay python Regular expressions are blocked in ...

9. DatagridView Content line breaks and line breaks

   Content wrap : stay DataGridView newly added Row when , Set DataGridView Of DefaultCellStyle Properties WrapMode=true: Line breaks line breaks : stay DataGri ...

10. Use ffmpeg step （ turn ）

    av_register_all();// initialization ffmpeg library , If there's something in the system ffmpeg If it's not configured properly, there will be an error  if (isNetwork) {      // Need to play online video      avforma ...