Data comms training course description
A hands on training course introducing the concepts of
data communications, moving on to covering both LAN
and WAN technology. Quizzes are used extensively to
ensure material has sunk in and to maximise learning
time. Hands on sessions ensure that by the end of the
course delegates have made cables, built LANS and
WANS, configured TCP/IP, switches and routers.
What will you learn
Use the seven layer model to classify networking buzzwords.
Build and troubleshoot Ethernet, LAN/WAN and WiFi networks
Explain the difference between switches and routers.
Connect networks with routers.
Data comms training course details
Who will benefit:
Anyone who requires a technical introduction to networks.
Prerequisites:
None.
Duration
3 days
Data comms training course contents
What are networks?
What is data communications? What are networks? Types of network, LANs, LAN choices, WANs, WAN choices, PANs, SANs, MANs, connecting networks. Internetworks, the internet, clouds.
Networks and standards
Standards bodies, ISO, ITU, IEEE, IETF, OSI 7 layer
reference model, TCP/IP and OSI, ping and the 7 layer
model, encapsulation, fragmentation.
The physical layer
Transmission media: Copper, Fibre, RF, UTP, Cat
5/5e/6/7..., RJ45, straight and cross over cables. Coax,
Fibre cable & connectors, SFP, MMF, SMF, radio
spectrum, frequencies, ranges, noise and electrical
distortion, repeaters.
Hands on Cabling, ping.
Bandwidth
Definition, Bits, bytes, speeds, simplex, half/full duplex,
a/symmetrical, aggregation, latency. Calculating
bandwidth requirements.
The Data Link layer
Frames, classifications, standards, LAN/WAN layer 2
technologies (Point to point, virtual circuits).
Ethernet
What is Ethernet? 802.3, evolution from CSMA/CD,
choosing cables, topologies, NICs, MAC addresses.
Ethernet frame format.
Hands on Analysing Ethernet frames.
Ethernet switches
Connecting multiple devices, switches work at layer 2,
Switches vs. hubs, simultaneous conversations, full
duplex, MAC address database, how switches work,
switch benefits, loops, STP. Console ports.
Hands on Switches and WireShark, configuring
switches, broadcast storms, STP.
VLANS
What are VLANs, why have VLANs.
Hands on The
effect of VLANs on network traffic.
Wireless LANs
Type of wireless network. WiFi, 802.11b/g/n/ac, WiFi6,
antennae, interference, 802.11 frame format, CSMA/CA,
half duplex, Wireless Access Points, security.
Hands on Building a WiFi network.
WANS
WAN architecture, WAN types, service providers,
access equipment, DTE, DCE, core equipment, WANs
and the 7 layer model, choosing a WAN.
WAN access
Point to point, multi access, Internet, phone lines, leased
lines, xDSL, broadband architecture. DOCSIS, FTTH,
PON, SD-WAN. Older technologies (if required):
Modems, ISDN, 64k, E1, TDM.
Packet switched networks
Packet switching, virtual circuits, Hub & spoke, partial &
full mesh, MPLS, MPLS and routers, Why MPLS? MPLS
-TE, MPLS VPN, Internet VPN. Older technologies (if
required).
Service provider technologies
Transport plane, SDH, SONET, WDM, CWDM, DWDM,
DWDM architectures, OTN.
TCP/IP
Definition, protocols, services, internetworking, the
Internet, intranets, IAB, RFCs, IP header, IP addressing,
subnet masks, IPv6, TCP, UDP.
Hands on IP address and subnet mask configuration.
Routers
What are routers? Routers vs switches, when to route
and when to switch, default gateways, routing tables,
static routes, routing protocols. Firewalls, how firewalls
work.
Hands on Router configuration, tracert.
Applications
Clients, servers, web, HTTP, Email, resource sharing,
IM, VoIP, Video over IP, terminal emulation, ftp, ssh.
Hands on telnet