The previous sophomore layer technology, typically using Is-is routing technology at the bottom of the physical network, is based on a two-tier extension of the data center network, such as public trill, SPB Technology, and Cisco private OTV, Fabricpath technology, and some of the leading network virtualization technologies, The Vxlan, Nvgre and other protocols are used to break the limits of VLANs and Macs, extending the data center's sophomore netwo
Previous post introduced NSX concept and pre-installation preparation, today this is an NSX pilot environment ready and deployed NSX Manager, and continuously updated ... Welcome to continue to pay attention to, thank you! (Graphic details can go to the landlord's download information to find ha ~!) )NSX Manager is t
NSX Controller A control Plane is responsible for obtaining distributed network messages for the host, and the previous section (Part04) has discussed how to prepare a cluster for an NSX controller and related considerations. NSX controllers will form a control cluster, and the presence of cluster requires more machines to circumvent the brain fissure scene. It i
In order to ensure that the relevant vibs has been successfully installed on the corresponding host, but also need to go to each host to do a verification (not necessary steps, but to develop a rigorous technical habits, you can let us less hit the wall, this cat has been countless times to our students have spoken);In the previous Part06, already installed, after the successful installation, in Figure 01, you can clearly see the status of the relevant components:Figure 01After confirming this s
discovered a network virtualization platform called NSX, and studied the NSX's differential segment (micro-segmentation) feature, and found that NSX can build "one-piece network" For each desktop, eliminating interference between networks, and can centrally define policies Automatically add a policy when the virtual machine is created, so that security always follows the desktop. At the same time, careful
After completing the environment preparation for NSX, I came to the configuration of the virtual extensible LAN (VXLAN) section, one of the most important technologies for NSX to achieve the sophomore layer. Vxlan is an open technology standard that allows you to create a logical network for virtual machines of different networks. Can be achieved across Layer 3 Layer 2 network, which is commonly known as th
From today onwards, let's show a few of the basic features of Cisco UC, one of the first basic features: Cisco IP Phone.The word Cisco CUCM is bull x!Knowing that the CUCM is a ippbx in a cow's lecture, it provides the phone function of the IP phone to replace the traditional analog phone.In fact, know this is a broken cow, but also in the study of Microsoft's UC
With the advent of the Internet era, more and more work and information technology-related, in the requirements of the times, each person's development and employment needs to have the knowledge and quality of the Internet, then in this do not test the certificate of the age, Cisco gold content such a high certificate in the end there is no use? The leading-edge education small compilation uses the data to explain the question.Because our large depart
Half a year five acquisitions Cisco intensive integration for self-redemptionWu MicroCisco, a "takeover guru", recently announced a new deal.The acquisition was Cloudlock, a cloud security company, with a total transaction price of $293 million. This is the fifth takeover deal that Cisco has launched this year.As the world's largest network equipment manufacturer, Cisco
Overview
This product announcement focuses on Cisco®Catalyst®Cisco IOS on 6500 series switches®See Figure 1 ).
The Cisco Catalyst 6500 series, modular with Cisco IOS software, improves operational efficiency and minimizes downtime through continuous evolution of software infrastructure. By running the modular
WIN8 Cisco VPN 442 Error solution/Error Code 442 Cisco VPN Clinet with Windows 8 when you start using win8, because of work needs to use Cisco VPN Client, however, in win8, the Cisco VPN Client reports a 442 Error and cannot be used. The following Error message is displayed: Error Code 442 while connect to VPN server b
Tags: HSRP working principle STP effect ACL access control List loop storm Cisco private protocolDay 031. What is HSRP? How does it work?HSRP: Hot Standby Routing protocolHSRP is a Cisco private protocol that ensures that user communication can be quickly and transparently restored when a network edge device or access link fails.This provides redundant rows for the IP network. By using the same virtual IP a
Cisco 2015 campus recruitment test interview summary, Cisco 2015
I registered for the Cisco-EDS job in soy sauce. I wrote a test on October (Saturday), with the following points: c/C ++, Python, Alogrithm OS, Database, Java, and Network. The test time is 70 minutes, 2 or 4 of them are limited or selected based on different positions. The answer to the question i
How does a cisco switch find a loop? How to solve Loop Problems, cisco
How does a cisco switch find a loop? Loop Problem Solution
How can we intuitively and quickly determine whether a loop exists on a cisco switch? And quickly locate the switch loop? Is this a problem?
Currently, there is no best way to view the loop.
"Introduction" Within a switched network, it is possible to segment and organize flexibly through VLANs. VLANs can group devices in a LAN. A group of devices in a VLAN communicates as if it were connected to the same line. VLANs are based on logical connections, not physical connections. Types of VLANsThere are many different types of VLANs used in modern networks. Some VLAN types are defined by traffic category. Some other VLAN types are defined by specific features.Data VLAN: used to deliver u
Automatic backup and fallback of Cisco iOS profiles requires the use of the Archive Archive configuration mode feature of iOS. In general, only the version number of iOS has the Archive configuration mode feature in 12.3 (4)
Cisco iOS profile automatic backup All commands are as follows:
router>
Router>enable
Router#configure Terminal
Router (config) #archive
Router (config-archive) #write-memory
Trunk Link Trunk: Same inter-VLAN communication on different switchesHow to play tag tag encapsulationPackage Type: IEEE 802.1q/cisco ISLIEEE 802.1q:4 Bytes, internal encapsulation, publicCisco isl:30 bytes External encapsulation, privateSwitch port configuration mode: Trunk/acces (OFF)/Dynamic desirable/dynamic AutoTwo auto NO mode of operation generally either trunk or accessEthernet Channel: Multiple physical ports to form a logical port for greate
Previous page Everyone talked about Cisco Basic Operation command switch, while dragon boat holiday, the Cisco simple switch configuration, and hope you share "Happy Dragon Boat Festival"! Ok, configure the switch, first, you must enter the global configuration mode switch, successfully connect the switch and landing successfully into privileged mode1. Enter the global configuration mode:Switch#configure te
Internet Operating System (IOS) is Cisco's private core software package, which is mainly implemented on Cisco routers and switches. Cisco IOS software uses a set of value-added technologies and features to provide Internet intelligence.Cisco IOS includes a group of superb network technologies, mainly composed of internet devices such as a single router, it is used to provide shared media hub vro modules, v
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