Chapter 6: Installing a Physical Network Pg 125 - 132

Understanding Structured Cabling:
- set of standards defined by TIA/EIA
- idea is to create a safe, reliable cabling infrastructure for all the devices that need interconnection

Structured Cable Network Components:
- requires a telecommunications room, horizontal cabling, work area

Horizontal Cabling
- cabling that goes horizontally from telecommunications to work room
- a CAT5e or better UTP
- should always be solid core

Solid Core vs. Stranded Core
- solid core UTP uses a single solid wire
- stranded core is a bundle of tiny wire strands

Number of Pairs:
- should use four-pair UTP
- larger bundled UTP in higher-end telephone setups

Choosing Your Horizontal Cabling:
- lower CAT level cable will work on most networks

Network+ Chapter 5: Modern Ethernet Page 120 - end

Backbones:
- Each flor has its own switch that connects to every node on the floor
- each of these switches has a separate high-speed connection to a main switch
- you need switches with separate, dedicated, high-speed ports
- add-on ports on the switches run straight to the backbone

Current Week

As of now, I am currently awaiting preparation for the server to be complete. John has missed several days this week for reasons unknown. In the meantime, I am continuing to study for Network+.

Chapter 5 Modern Ethernet Pg 115-119

Implementing Multiple Types of Gigabit Ethernet

10 Gigabit Ethernet
         - shows up in high-level LANs
         - fiber and copper standards
      
Fiber-based 1- GbE
         -  standardized by type of fiber used, wavelength of the lasers, and physical
layer signaling type
         - also define maximum signal distance
         - standards have names that start with "10GBase" and end in xy
         - x stands for type of fiber used
         - y code is always R ( for LAN-based signaling devices) and W for (SONET/WAN)
         - when x = S, S means short or 850nm over multimode fiber
              -> max fiber length being 300 Meters
         - when x - L, L means long or 1310 nm over single mode fiber
              -> max fiber length being 10 Kilometers
         - 10BaseLR connects LANS
         - 10BaseLW connects SONET
         - when x=E, E means Extra Long or 1550nm
                -> max fiber length of 40 Kilometers
      
The Other 10 Gigabit Ethernet Fiber Standards
         - 10BaseL4
               -> uses four lasers
               -> 1300nm wavelength
               -> legacy fiber
               -> 300 Meter max length
               -> multimode cable
          - 10BaseLRM
               -> long wavelength
               -> over legacy fiber
               -> max range of 220 meters
           - 10BaseZR
               -> not part of the IEEE standards
               -> uses 1550 nm wavelength
               -> max range of 80 Km

Copper-based 10GbE
           -running on twisted-pair cabling
           - called 10GBaseT
           - maximum cable length of only 55 meters with CAT6
           - maximum cable length of 100 meters with CAT6a
         

Chapter 5: Modern Ethernet Pg107-114

Must be able to:
         - Categorize standard media types and associated propertiees: media converters, distance limitations
         - Categorize standard connector types based on network media: fiber
         - compare and contrast different LAN technologies
         - Describe the varieties of 100-megabit ethernet
         - discuss coper and fiber based gigabit ethernet
         - compare the competing varieties of 10 gigabit ethernet

Upgrading from 10BaseT to 100 BaseT
         - First: Use CAT5 cable or better
         - Must replace all old 10BaseT NICs with 100BaseT NICs
       
 100BaseFX
         - 100 Megabit Ethernet fiber-optic cable
         - also known as 100BaseF
         - Speed: 100 Mbps
           Signal Type: Baseband
           Distance: 2Km between the hub and node
           Node Limit: 1024 per node
           Topology: Star-bus topology, physical star, logical bus
           Cable Type: multimode fiber-optic cabling with ST or SC connectors

Full-Duplex Ethernet
          - Can send and receive data at the same time
          - doesn't increase network speed, but doubles bandwidth
        

Gigabit Ethernet
          - 1000BaseT
          - 1000BaseX

1000BaseCX
         - uses twinaxial cable (or twinax)
         - 150-Ohm cables with length limit of 25 meters

1000BaseSX
         - multimode fiber-optic cables
         - max cable length of 220-500 meters
         - uses 850 nm wavelength LED
       
1000BaseLX
        - single-mode (laser) cables
        - max length of 5-70 Km