openflow sdn

difference: on the one hand, users, especially the industry, the business environment of large customers rapid development, from the traditional business network architecture quickly to virtualization, cloud computing, SDN, SDDC evolution; On the other hand, the main market manufacturers remain in the function module , product qualification and other low-level competition stage, and customer demand for more and more large gap.2015, too one star morni

Cloud EDGE:2013 International's series of "Clouds Pioneer" reports Serial Number Company Name Date of Establishment Ceo/cto Venture capital Company products/Direction 1. Hstreaming 2011 Jana Uhlig $1M (B) Real-time Hadoop system 2. Citusdata 2012 Matt Ocko Citusdb 3. Backblaze 2009 Gleb Budman Open Source Storage Hardware 4.

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Docker NetworkThe three networks of bridge, host, none are automatically created on the host when Docker is installed, and can be viewed with the Docker Network LS commandNone NetworkNone Network is any network, hanging in the network of containers in addition to Lo, there is no other network card, the creation of containers can be--network=none to specify the use of the None network. A none network is available for applications that have high security requirements and do not require networking.

use protocol version 3, Otherwise, there will be an error about PROTOCOL. m_ldap_con(); $dn = "cn=root,ou=SystemAdmin,dc=xxx,dc=org"; $psw= "xxxxxx"; $mdap->m_ldap_bind($dn,$psw) or die("cannot bind"); $sdn="ou=people,ou=iWeb,dc=weiwejia,dc=org"; $filter="(uid=*)"; $res=$mdap->m_ldap_search($sdn,$filter); foreach( $res[0]["cn"] as $key=>$val){

private key, 1024 bit long Modulus...... ++E is 65537 (0x10001)Enter pass phrase for Ca. Key: (enter a password)Verifying-enter pass phrase for Ca. Key: (enter the password again)......Self-sign the root Ca... (sign the root certificate)Enter pass phrase for Ca. Key: (enter the password you just set).............. (Signing starts below)Country name (2 letter code) [my]: CNState or province name (full name) [Perak]: JiangsuLocality name (eg, city) [sitiawan]: NanjingOrganization Name (eg, compan

an APP Server, that is to say, traffic is terminated locally, the future architecture may look like this, as shown in: Looking at the figure above, you may ask, how does the device know that the data packet is sent to the local device? In fact, this is not the responsibility of this device. How do you know that what I DMA to the Ring buffer is an Ethernet frame instead of a pure HTTP packet? In short, there is no such thing as the present, which is incredible. What's best about PF_RING is not

']. '| '. $ rt2 ['Password']. '| '. $ rt2 ['email ']. "\ r \ n ");Echo 'email _ num = '. $ email_num. "\ r \ n ";}*/}}Mysql_free_result ($ query2 );}$ Uid = $ nextuid;}?> The code you see above is very poor, because it is very inefficient, millions of data, it takes more than 10 hours to run, how can I forget the basics of table connection query? The following is the corrected method.Copy codeThe Code is as follows: $ link = mysql_connect ('localhost', 'root', 'admin', true );Mysql_select_db ('c

not the only choice, because even AWS seems to be aware that the pattern has changed a lot, so the new idea: AWS Re:invent, similar to the previous years Sohu proposed: Cultural reengineering.5. With OpenStack-led vendors pushing SDN projects to the ground, private hosting cloud and intra-company virtualization environments accelerate convergence. The first batch of large-scale customers will appear in companies with big data and in the Internet busi

is the complexity? Complexity is added by future generations! It is not the core of TCP/IP. If we maintain the core of TCP/IP and connect the gully between June A and June B with a bridge like the San Francisco bridge, the efficiency will be greatly improved, therefore, QoS is the transmission network (as the link layer ?) !Addressing network in a new generation of Network Independent into a signaling network, its goal is to configure all-optical transmission network, similar to the work of the

Some problems of mininet and floodlight in the first-time SND machine operationFirst give the link VMware installation Mininet Installation Floodlight installation and problems, various versions of Ubuntu SDN first time on-machine job If on the basis of these links you have been able to complete the first time SDN machine work, then the content below your needs may not be very good

, there is a tool to use: http://www.openssl.org/contrib/ssl.ca-0.1.tar.gz# cd/usr/local/apache2/conf# tar ZXVF ssl.ca-0.1.tar.gz# CD ssl.ca-0.1#./new-root-ca.sh (Generate root certificate)No Root CA key round. Generating OneGenerating RSA private key, 1024 bit long modulus...........................++++++....++++++E is 65537 (0x10001)Enter pass phrase for Ca.key: (Enter a password)Verifying-enter Pass phrase for Ca.key: (again enter password)......Self-sign the root CA ... (Signed root certific

: Nova: Provides compute computing power (virtual machine) Neutron: Provides networking network connectivity capabilities Glance: Provides image mirroring storage capabilities Keystone: Provide identity authentication capability Cinder/swift: Provides storage storage capabilities Network virtualization is a rapid development of the field, to the present neutron has been very good support L2, L3, HA, Securitygroup, Lbaas, Fwaas, Vpnaas, DVR and so on. It's just that I've r

write NetBeans Ruby IDE extensions in Ruby? Martin Krauskopf wrote down his findings in the blog entry. Develop/Run/debug Rails applications using NetBeans IDE and GlassFish v3 Prelude GlassFish V3 Prelude is now available. Arun Gupta's screen video demonstrates how to use the NetBeans IDE and GlassFish v3 prelude to develop/Run/debug Rails applications. Schedule NetBeans Walkthrough Camp in Munich-November 18 To celebrate the 10 birthday of the NetBeans 6.5 release and NetBeans project, the Ne

development efficiency.Linux 4.0 SwitchdevAll bad news ends up in the Linux 4.0 kernel.Linux 4.0 introduces a Switchdev framework that represents the abstraction of a class of multi-port devices with "switching" capability chips. Each of these network ports is a port that is registered as a net_device in the Switchdev framework. In addition, the kernel comes with a rocker driver, demonstrating an actual device-driven implementation. The entire switchdev is as follows:650) this.width=650; "src="

Today, we finally finished finishing the mininet part.First of all, this section is divided into two elements, one is a custom topology, and the other is a custom flow table.1. Open Ubuntu.2. Create a new terminal and enter Java-jar Target/floodlight.jar to start the floodlight service. You can open the UI side of the Web page to view topologies and hosts.3. Create a new terminal, enter the./pox/pox.py Forwarding.hub to start the Monitoring setup link. The Pox controller can release the flow met

the service through Db.sock, Ovs-vswitchd reads the configuration information from this process through this db.sock. /ETC/OPENVSWITCH/CONF.DB is in JSON format and you can print the database structure by command ovsdb-client dump. The database structure contains the following table. The database structure is as follows: All the network bridges created through OVS-VSCTL, network cards, are stored in the database, OVS-VSWITCHD will be based on the configuration of the database to create a

Symptoms:ODSUnable to do with another ODSDeltaException: runtime error raise_exceptionInformation: exception condition "not_exist" raisedAnalysis: Error AnalysisA raise statement in the program "saplrssm" raised the exceptionCondition "not_exist ".Since the exception was not intercepted by a superior programIn the hierarchy, processing was terminated. Short Description of exception condition:For detailed documentation of the exception condition, useTransaction se37 (function library). You can ta

csdn_userdb u USING (username) WHERE m. uid> '$ uid' AND m. uid While ($ rt = mysql_fetch_array ($ query, MYSQL_ASSOC )){ If ($ rt ['password'] = md5 ($ rt ['csdn _ password']) { $ Username_num ++; Fwrite ($ handle_username, 'own :'. $ rt ['uid']. '| '. $ rt ['username']. '| '. $ rt ['password']. '| '. $ rt ['email ']. 'csdn :'. $ rt ['username']. '| '. $ rt ['sdn _ password']. '| '. $ rt ['sdn _ email '].

protocol version 3, Otherwise, there will be an error about PROTOCOL. m_ldap_con(); $dn = "cn=root,ou=SystemAdmin,dc=xxx,dc=org"; $psw= "xxxxxx"; $mdap->m_ldap_bind($dn,$psw) or die("cannot bind"); $sdn="ou=people,ou=iWeb,dc=weiwejia,dc=org"; $filter="(uid=*)"; $res=$mdap->m_ldap_search($sdn,$filter); foreach( $res[0]["cn"] as $key=>$val){