Unit-3 Part-4 | Computer Network | Congestion control, IPV4 header, IPV6 Engineer Being 1 year ago Unit-3 Part-4 | Computer Network | Congestion control, IPV4 header, IPV6 Hey Guys, Here is Unit-3 Part-4 Topics Covered – Congestion control, IPV4 header, IPV6, advantages of IPV6, IPV6 header, transition from IPV6 to IPV4 .