Identify The Backbone and Segment for Networking

Written by Julianus Yu

The backbone is the part of the network to which all segments and servers connect. A backbone provides the structure for a network and is considered the main part of any network. It usually uses a high-speed communications technology of some kind (such as FDDI, ATM, 100Mb Ethernet, or Gigabit Ethernet). All servers and all network segments typically connect directly to the backbone so that any segment is only one segment away from any server on that backbone. Having all segments close to the servers makes the network efficient.

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Elements of a Successful Cabling Installation

Written by Julianus Yu

Learning about the various components of a typical telecommunications installation and their functions is important, but it is more important to understand how to put the components together into a cohesive cabling-system design. We must design the cabling system so that each component of that system meets
or exceeds the goals of the cabling project.

Before designing your system, you should understand how the following elements contribute to a successful installation:

• Using proper design

• Using quality materials

• Practicing good workmanship

Each of these aspects can drastically affect network performance

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10GBase-T Cat.6A Currently Defined in ANSI/TIA/EIA-568-B.2-10

Written by Julianus Yu

The latest standard from the TIA for enhanced performance standards for twisted pair cable systems was defined in February 2008 in ANSI/TIA/EIA-568-B.2-10. Category 6a (or Augmented Category 6) is defined at frequencies up to 500 MHz—twice that of Cat 6. Category 6a performs at improved specifications, particularly in the area of Alien Cross-talk (AXT) as compared to Cat6 UTP which exhibited high alien noise in high frequencies.

The global cabling standard ISO/IEC 11801 will soon be extended by the addition of amendment 2. This amendment defines new specifications for Cat. 6A components and Class EA permanent links. These new global Cat. 6A / Class EA specifications require a new generation of connecting hardware offering far superior performance compared to the existing products which are based on the American TIA standard (Look at Service>Product>Copper twisted pair Product..for new connector support Cat.6a).

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Cabling Pathways and Spaces Standard

Written by Julianus Yu

Here we share about the cabling-system components outlined by the ANSI/TIA/EIA-569-A Commercial Building Telecommunications Pathways and Spaces Standard for concealing, protecting, and routing your cable plant.

Conduit
Conduit is pipe. It can be metallic or nonmetallic, rigid or flexible (as permitted by the applicable electrical code), and it runs from a work area to a wiring closet. One advantage of using conduit to hold your cables is that it may already exist in your building. Assuming the pipe has space, it shouldn’t take long to pull your cables through it. When drafting specifications for conduit, we recommend that you require that enough conduit be installed so that it would be only 40 percent full by your current cable needs. Conduit should only be filled to a maximum of 60 percent, so this margin leaves you with room for future growth.

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Major Cable Components for Transmitting Data

Written by Julianus Yu

Here we describe the components involved in transmiting data from the work area to the wiring closet, the component are horizontal cable, backbone cable, and patch cable.

Horizontal cables run between a cross-connect panel in a wiring closet and a wall jack. Backbone cables run between wiring closets and the main cross-connect point of a building (usually referred to as the equipment room).

Horizontal runs are most often implemented with 100-ohm, four-pair, unshielded twisted-pair (UTP), solid-conductor cables, as specified in the ANSI/TIA/EIA-568 Standard for commercial buildings. The Standard also provides for horizontal cabling to be implemented using 62.5/125-micron or 50/125-micron multimode optical fiber. The Standard recognizes 150- ohm shielded twisted-pair (STP) cable, but does not recommend it for new installations, and it is expected to be removed from the next revision of the Standard. Coaxial cable is not a recognized horizontal cable type for voice or data installations.

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Next Generation IT Initiatives

Written by Julianus Yu

These are IT initiatives that are driven by the organization’s CIO, IT manager, and data center personnel, to ensure that the business-level objectives and goals are enabled by the data center and network infrastructure capabilities and capacities. Among the next generation IT initiatives we can count data consolidation, Service Oriented Architecture (SOA), Virtualization, convergence, real-time enterprise, and more.

Data Center Consolidation
In order to significantly reduce costs, enterprises are moving to deploy less data centers, each consisting of more services, by centralizing the business’s applications, servers, hosting, and management. In addition, data center consolidation also enables organizations to meet regulatory and compliance, to drive globalization and to enable business continuity.

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Don't Forget The Network Connectivity Devices

Written by Julianus Yu

We’ve looked at the products you can use to bring your communication endpoints to a central location. But is there any communication taking place over your infrastructure? What you need now is a way to tie everything together, you need to establish seamless communication across your internetwork.

Repeaters
Nowadays, the terms repeater and hub are used synonymously, but they are actually not the same. Prior to the days of twisted-pair networking, network backbones carried data across coaxial cable, similar to what is used for cable television.

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Network Architectures

Written by Julianus Yu

Network architectures include Ethernet, Token Ring, Fiber Distributed Data Interface (FDDI), Asynchronous Transfer Mode (ATM), and 100VG-AnyLAN, capable of operating on other media as well as predominant cabling infrastructure "UTP".

Ethernet
Ethernet is the most mature and common of the network architectures. According to technology analysts IDC (International Data Corporation), Ethernet is used in over 80 percent of all network installations. Over the past 25 years, despite stiff competition from more modern network architectures, Ethernet has flourished. In the past 10 years alone, Ethernet has been updated to support speeds of 100Mbps and 1000Mbps; currently 10 Gigabit Ethernet is being deployed over optical fiber and research is progressing to make it available over UTP.

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