Intro to data communications & networking

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

Data comms training course details

Anyone who requires a technical introduction to networks.

None.

3 days

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.

Standards bodies, ISO, ITU, IEEE, IETF, OSI 7 layer
reference model, TCP/IP and OSI, ping and the 7 layer
model, encapsulation, fragmentation.

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.

Definition, Bits, bytes, speeds, simplex, half/full duplex,
a/symmetrical, aggregation, latency. Calculating
bandwidth requirements.

Frames, classifications, standards, LAN/WAN layer 2
technologies (Point to point, virtual circuits).

What is Ethernet? 802.3, evolution from CSMA/CD,
choosing cables, topologies, NICs, MAC addresses.
Ethernet frame format.

Hands on Analysing Ethernet frames.

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.

What are VLANs, why have VLANs.
Hands on The
effect of VLANs on network traffic.

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.

WAN architecture, WAN types, service providers,
access equipment, DTE, DCE, core equipment, WANs
and the 7 layer model, choosing a WAN.

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 switching, virtual circuits, Hub & spoke, partial &
full mesh, MPLS, MPLS and routers, Why MPLS? MPLS
-TE, MPLS VPN, Internet VPN. Older technologies (if
required).

Transport plane, SDH, SONET, WDM, CWDM, DWDM,
DWDM architectures, OTN.

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.

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.

Clients, servers, web, HTTP, Email, resource sharing,
IM, VoIP, Video over IP, terminal emulation, ftp, ssh.

Hands on telnet