All Posts in "software"

Campus NetworksThis chapter from Cisco Press supplies an overview of the technologies offered now to style networks. This site is very valuable in term of the beginner and advance lesson to get Cisco Certificates. CatOS devices ought to have PAgP set to off when connecting to a Cisco IOS application device if EtherChannels are not configured. Table 1-1 summarizes the many LAN technologies necessary to make effective campus networks. On top of that, if you use a modular chassis switch, such as the Cisco Catalyst 4500 or Catalyst 6500 family members of switches, these design and style considerations are not expected. The campus network topology is mainly LAN technologies connecting all the end systems inside the developing.

The enterprise edge contains all the network components for efficient and safe communication between the enterprise campus and remote locations, enterprise partners, mobile customers and the World-wide-web. In terms of campus technologies and protocols, I learned far much more from this book than I did from any of my research for Cisco’s expert-level certifications. A large campus with groups of buildings can also use WAN technologies to connect the buildings.

For these privileged to have Best Down Network Design, we know what I am speaking about: a self-contained book that delivers beyond a Cisco Certification test. New technologies such as 802.1x and VLAN assignment and Cisco Network Admission Control with quarantined VLAN, need to be used with transparent mode. Consequently, network designers commonly deploy a campus style optimized for the quickest functional architecture that runs on the existing physical wire.

The Cisco Catalyst 6500 and 4500 switches can support redundant supervisor engines and offer L2 Stateful Switchover (SSO), which ensures that the standby supervisor engine is synchronized from an L2 point of view and can speedily assume L2 forwarding responsibilities in the event of … Continue reading >>>

Michael Green by — February 22, 2015 in Campus Networks

Computer PowerIf there is any a single element that is absolutely essential to the operation of a computer system , it is the energy supply. The energy provide is supposed to delay sending the power_fantastic signal, which tells the CPU it is secure to boot, till the power outputs are steady. The switch programming might require you to hold the energy button in for a couple of seconds before the power provide shuts down again. If the energy does not come on, double check that the energy lead is firmly seated in the drive socket. When you turned the Pc on or off, you knew you have been undertaking it. These switches essentially controlled the flow of 120 volt power to the energy provide.

This is not an straightforward process as it calls for you to give significance to each single portion of your pc from the CPU to the Graphics Card, from Main Optical Drive to Third Optical Drive and from liquid cooling to the wireless card. Choosing a replacement energy supply can be a daunting job, but PCWorld’s guide to selecting the best Pc power provide can put you on the right track. In some cases they give the peak current requirement in Amps (A) at the supply voltage, generally 12V, so you multiply the two numbers for the power consumption in Watts.

This does not apply to obsolete AT PCs, exactly where you are going to see the heavy power cord going to a large switch, but these systems are quite much gone. Ultimately plug any expected PCI-E power connectors into your graphics card, then double-check all of the plugs to make positive they are securely seated. The style of the energy supply is somewhat primarily based on the size and style of the laptop or computer case. … Continue reading >>>

Michael Green by — February 2, 2015 in Computer Power