Day 1

1. protocols

identified sender and identified receiver

agree on method of communication

common language and grammar (Cisco IOS)

speed and timing

confirmation or aknowledgement (ACK) of data received


2. Network itself

Quality of the pathway.

Number of times the message changes for (from switch to switch, etc)

Number of times a message is redirected

Number of messages sent at the same time

Size or complexitity of the network

3. Elements of a network

a) Protocols (set of rules)
b) Messages (units of information)
c) Medium (whatever is being sent over, fiber, copper, etc)
d) Devices (routers, switches, hubs)

TCP - Transmission Control Prot.
TCP/IP - " " "

Services:

www = HTTP
email = SMTP/POP

9781587132032 = Lab book


Convergence -

Network architecture - Conceptual plans to build a network

a) Fault tolerant - alternative pathways

b) Escalability

c) Quality of Service (QoS) -

d) Prioritize traffic

e) Security (firewalls)

Security:

- Network infrastructure, security, physical plan.
- Content security, protecting the data on the devices themselves.
- Availability, data available when user needs the data.