Objectives
1. Design a network layout
2. Understand the various networking topologies
3. Integrate the use of hubs into yournetwork.
4. Integrate the use of switches into your network
5. Explore the variations of he standard networking topologies
6. Select the best network topology for your environment
7. Construct your network layout
Import Points:
1. Topology - physical layout of network and how the components communicate with
each other.
Layout, diagram and map.
2. Bus - all machines connect via backbone - if goes down whole network is down.
a. passive topology -only listen for data being sent
b. active topology - regenerate signals and move data through
the network.
c. Signal bounce - move from point of transmission to both
end of bus and will bounce back
without terminator
d. Terminator - prevents signals from bouncing.
e. Cable failure - cable break network stops.
f. Attenuation - loss of signal
g. Repeater - repeats signal
3. Star Topology
1. individual machines receive signal from hub.
2. Hub goes down network goes down.
3. Easy to trouble shoot.
4. Ring Topology
a. Token ring - token passed from machine to machine - one
with token has control of network.
b. data received is acknowledged.
5. Wireless - requires centralized device - no wire - star topology.
a. Wireless Access Point (WAP)
6. HUBS - central point of concentration for star network.
a. active hubs - regenerate signals and send them along.
b. Passive hub - signal passes through but no regeneration-
simple connection point
c. Hybrid hubs - interconnect different wire
7. Switches - hub that directs signal directly to the port identified
8. Mesh Topology -
a. Most fault tolerant
b. Most expensive
9. Star Bus Topology - combines the two - generally bus backbone connect hubs.
10. Star Ring - combines the two.
11. Network Layout
a. how many clients
b. how many servers
c. expansion plans
d. what applications
e. peer to peer or server based.
f. fault tolerance
g. how much money available