Cloud Computing: A Simple Description:- In its most simple description, cloud computing is taking services (" cloud services ") and moving them outside an organizations firewall on shared systems. Applications and services are accessed via the Web, instead of your hard drive. In cloud computing, the services are delivered and used over the Internet and are paid for by cloud customer (your business) -- typically on an "as-needed, pay-per-use" business model. The cloud infrastructure is maintained by the cloud provider, not the individual cloud customer. Cloud computing networks are large groups of servers and cloud service providers that usually take advantage of low-cost computing technology, with specialized connections to spread data-processing chores across them. This shared IT infrastructure contains large pools of systems that are linked together. Virtualization techniques are often used to maximize the pow...
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How to setup the ADSL Router in DSL mode? Product line: ADSL Question category: Internet Settings I. Physical connection : 1 . Connect the telephone line to the DSL port of the router. 2 . Take an Ethernet cable to connect your computer with one of the yellow LAN ports (1, 2, 3 or 4) of the router. 3. Check the LED lights. Ensure that Power is on, the LAN port which you have plugged the cable in is on, the SYS and DSL are blinking. WLAN is on or blinking. Note :If you can access internet through W150D/W300D after setting,the DSL light should be always on. II. Login to the management page of the router : 1. Open a web browser (IE, Firefox, Safari, etc.) and find the address bar. Leave it blank before typing in 192.168.1.1 ,...
Configuring Basic MPLS Using OSPF Introduction This document shows how to configure a basic Multiprotocol Label Switching (MPLS) network. Refer to Configuration Examples and TechNotes on the MPLS Support Page for more information on how to configure advanced topics such as VPN or Traffic Engineering (TE). Prerequisites Requirements Cisco recommends that you are familiar with the basic operation of MPLS. Refer to Multiprotocol Label Switching Overview for an overview of MPLS. Components Used The information in this document is based on these software and hardware versions: Cisco IOS® Software Releases 12.2(28) Cisco 3600 routers The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command. Conventions Refer to Cisco Technica...
How to configure Frame Relay on Cisco a Router. The figure below shows the basic Frame Relay configuration on a Cisco router, connected directly to a dedicated Frame Relay switch, or DCE. All router interface had been configured with IP addresses and routing protocol - RIPv2 . R1 R1# config t R1(config)# interface serial 0/0/0 R1(config-if)# encapsulation frame-relay R1(config-if)# frame-relay lmi-type ansi R1(config-if)# frame-relay map ip 10.1.2.2 102 broadcast R1(config-if)# no shutdown R2 R2# config t R2(config)# interface serial 0/0/1 R2(config-if)# encapsulation frame-relay R2(config-if)# frame-relay lmi-type ansi R2(config-if)# frame-relay map ip 10.1.2.1 201 broadcast R(config-if)# no shutdown How To Configure Frame Relay with Subinterfaces In the topology above, the frame from R1 use DLCI value 102. It leaves the router (R1) using VC 102. This process of VC-port map...
Frame Relay Overview Today's LANs and computing equipment have the potential to run at much higher speeds and transfer very large quantities of data. With the diversity and complexity of today's networks, management can be a mammoth task if you don't have the proper tools. Each environment is a unique combination of equipment from different vendors. Frame Relay, which is a relatively new wide area networking method, is gaining popularity. Like X.25, it uses a packet-switching technology, but it's more efficient than X.25. As a result, it can make your networking quicker, simpler, and less costly. Frame Relay was developed to solve communication problems that other protocols could not: the increased need for higher speeds, an increased need for large bandwidth efficiency, particularly for clumping ("bursty" traffic), an increase in intelligent network devices that lower protocol processing, and the need to connect LANs and WANs. Like X.25, Frame Relay i...
Resolving Blue Screen errors in Windows Blue Screen errors (also sometimes called black screen errors or STOP code errors) can occur if a serious problem causes Windows to shut down or restart unexpectedly. You might see a message that says, "Windows has been shut down to prevent damage to your computer." These errors can be caused by both hardware and software problems. If you added new hardware to your PC before the Blue Screen error, shut down your PC, remove the hardware, and try restarting. If you're having trouble restarting, you can start (boot) your PC in safe mode. For more info, see Windows Startup Settings (including safe mode) . You can also try the following: Get all the latest updates with Windows Update. Get help from other sources. Try restoring Windows back to an earlier point in time. Read through Resolving stop (blue screen) errors in Windows 7 for troubleshooting tips that might be helpful, even if you’re not ru...
Networking Basics: How ARP Works Understanding how ARP works can allow you to do many useful things. For example, a machine was recently set up accidentally with the IP address of another machine. This is an hour away, and accessing the system was tested before leaving the location, but after traveling back another machine was responding to that IP. Knowing ARP can allow you to fix this without having to go back to the location. Networking layers Outside of the classroom and interview environments, the OSI model network layers boil down mainly to layers 2, 3, and 7. The number of times I've encountered the other layers in the real world over the last several decades amounts to only a handful. For ARP, we are talking about layer 2. Layer 2 is the level that lower-end switches operate at, and is all about the MAC addresses. The MAC address is an ID, typically assigned by the manufacturer (though usually can be changed by software), which you see next to "HWaddr"...