OSPF applications-single-region and multi-region (CISCO) Single-region: 1. job Requirements! Three methods for injecting default Routes 2. Topology1. the device configuration is as follows: R1 (config) # int s1/0R1 (config-if) # ip add 192.168.1.1 255.255.255.0R1 (config-if) # no shutR1 (config-if) # int s1/1R1 (config
, and another member role for assigning to ordinary users who use the cloud environment . When you add a user to the openstack Authentication Service, you must have a tenant that can accommodate the user, and you need to define a role that can be assigned to that user. Each service in the cloud environment runs on a specific URL and Port, which is the endpoint address of those services. When a client program is connected to a cloud environment,t
communication, and glance-registry Used to manage objects stored in the hard disk and in the registry database. Both processes require authentication credentials to be set in their configuration files to facilitate The identity authentication of the user by the OpenStack Authentication Service. on the controller node Add a databaseNote: The installation of Glance is operated on the controller nodeMysql-u root-pDo the followingCREATE DATABASE Glance
Disclaimer: The recent installation of the kilo version of OpenStack found that there were very few existing web tutorials and that most of the tutorials did not install successfully, So write this tutorial. The installation of OpenStack is complex, and this tutorial does not guarantee that it will be installed successfully in different environments. Personal installation tutorials are also prone to erro
OSPF Multi-zone principle and configurationN reasons for generating OSPF multi-region1. reasons for generating OSPF multi-region? Improve the scalability of your network? Fast Convergence2. capacity of the OSPF areaHow many routers can be accommodated in each OSPF area after partitioning the
/keystone.py?h=stable/kilo |
Tee/var/www/cgi-bin/keystone/main/var/www/cgi-bin/keystone/admin Empowering Chown-r keystone:keystone/var/www/cgi-bin/keystone
chmod 755/var/www/cgi-bin/keystone/* Start Systemctl Enable Httpd.service
systemctl start Httpd.service (Note: In accordance with the Kilo version of the installation manual, I encountered a problem here, the solution, the main reason is the Apache and Keystone Service services conflict, the official manual recommends using Apache to
Label: OSPF Multi-region OSPF
I. Tutorial Purpose
Learn to configure multi-region OSPF and configure virtual links
Ii. Experiment Topology
650) This. width = 650; "src =" http://home.51cto.com/thumb.php? W = 600 H = 600 t = F url = http://s3.51cto.com/wyfs02/M02/4D/57/wKiom1RQOrDAUfumAAEihl4v8-0496.jpg "He
Ospf multi-region and sub-region
Key design points of the region:
1. backbone area 0
2. Other regions must be connected to the perimeter of the backbone area 0.
Other regions cannot be directly connected
Requirements for area 0:
Fast and stable. The core of a vro with a few vrouters
This topic uses an experiment
-file=hcloud.txtWelcome to thepackstack Setup utilityThe Installationlog file is available At:/var/tmp/packstack/20160509-032847-sm4dwt/openstack-setup.logInstalling:Clean up [done]Discovering Ipprotocol version [done]Here you need to manually enter the four-node password[Email protected] ' Spassword:[Email protected] ' Spassword:[Email protected] ' Spassword:[Email protected] ' Spassword:Setting up Sshkeys [done]Then wait for the installation to comp
1: saliency region selection in large aerial imagery using multi-scale SLIC segmentation,Proc. Spie8360, airborne intelligence, surveillance, reconnaissance (ISR) systems and applications IX, 2012
2:
Several points worth noting in this paper:
(1)
At a glance, salient regions are stand out while the rest of the scene is neglected since they do not attract visual attention.
(2)
When large and mostly uniform
| 2016-05-09t03:43:44.000000 | - |+----+------------------+-----------+----------+---------+-------+----------------------------+---------------- -+here Nova-compute is installed in the Lxp-node2 , but Cinder-volume is still in Lxp-node1 , it seems there are some problems with the configuration[[Email protected]~ (keystone_admin)]# grep HOST./hcloud.txtconfig_controller_host=192.168.11.8config_compute_hosts=192.168.11.9config_network_hosts=192.168.11.8config_vcenter_host=config_storage_host=192
return */ Int X = 20 ; Int Y = 20 ; While (Linesprinted Lines. length){ // The area to be printed E. Graphics. drawstring (lines [linesprinted ++ ], New Font ( " Arial " , 10 ), Brushes. Black, x, y ); Y+ =55; // When the judgment period exceeds one hour, it is allowed to print multiple rows If (Y > = E. pagebounds. Height - 80 ){ // Allow printing of many shards E. hasmorepages = True ; /* * When the haemorepages encoding of printpage
, and the measure is 0The administrative distance of the RIP protocol is 120 by default and the metric is hop countThe OSPF protocol's administrative distance defaults to 110, and the measure is the cost of the interface.--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Configuration of the peripheral areaEverything else is just a command.Area proc
Configuration implementation, topology diagram of the interoperability of multi-area OSPF, and do testing. The configuration process takes R1 as an example;If the region 1 is not directly connected to the area 0, and the area 2 is directly connected, excuse me, is such a diagram reasonable, if in this connection, I would like to realize the entire topology diagram of interoperability, how to configure.The t
/76/D4/wKiom1ZdS6vjJOWuAAA3gACUTuU743.png "style=" float: none; "title=" 3.png "alt=" Wkiom1zds6vjjowuaaa3gacutuu743.png "/>Both R1 and R5 have no route to each other at this time. We will modify the configuration of OSPF on R4 as followsrouter OSPF 110Router-id 4.4.4.4Log-adjacency-changesRedistribute OSPF subnetsNetwork 4.4.4.0 0.0.0.255 Area 1Network 34.1.1.0 0.0.0.255 Area 1router OSPF 100Router-id 4.4.4.40Log-adjacency-changesRedistribute OSPF subnetsNetwork 45.1.1.0 0.0.0.255 Area 2650) th
password you need2) in/etc/keystone/keystone.conf进行配置如下:[Database] Connection = mysql+pymysql://keystone:[email protected]/keystone [Token] Provider = fernet COMPUTE node InstallationThe first two steps are the same as the control nodes,3, install Chronyc ibid, but /etc/chrony/chrony.conf need to join: Server Controller IburstThen reboot and verifyService Chrony RestartChronyc sources4. Install OpenStack Packagesudo apt-get install Softw
each node to do the following, here is also listed in order to maintain the overall installation logic. Install the image source Yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
Yum Install/HTTP rdo.fedorapeople.org/openstack-kilo/rdo-release-kilo.rpm
Yum Upgrade Note: Foreign servers, domestic visits may occur in a less stable condition installing selinux Yum Install O
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