Convergence network is the efficient coexistence of different forms of data such as telephone,
voice, video data on a single network.
Challenges:
1 data network were not designed to transfer data
2 operating with voice video and data on the same network is a complex task
3 different types of traffic require diff network requirement
4 congestions can occur when the speed of arriving traffic is faster than the speed at which
traffic is sent
To make convergence work delay sensitive data, video, voice and vital transaction must be
prioritized. This is Quality of service (QoS)
TCP is transmission protocol that is used when the data must be delivered in a reliable fashion,
it means all sent data is received
Is also connection-based protocol, that a connection between 2 devices must be clearly initiated
and terminated before transferring data. Connection is establish using 3 ways handshake
That used when the all sent data must be received. Ex: video streaming platforms, email
service
UDP is used when the data must be delivered in a timely manner
Is connectionless, will not resend loss data, sacrificing reliability for speed. Ex: online game,
video communication
Public ip address is addresses that is be routed on the internet, are typically used by devices
that can be reachable by other devices on the internet
Private is address that is used to reserve internal network ( home, small business), that is not be
routed on the internet . If devices use private ip address, it need to use of NAT to communicate
on the internet. 10.0.0.0 172.16.0.0 192.168.0.0
The best is 172.0.0 is easy to manage..
TCP congestion
TCP need to use congestion control to manage the rate of transmission.
TCP congestion window specifies max number of unacked segments that can be in a
transportation between sender and receiver. It is determined by New Reno( congestion control
algorithm
Snow start – congestion avoidance
