Question

1. Please explain the functionality of Management Frame, Control Frame and Data Frame in 802.11/WiFi. 2. Compare and contrast the IPv4 and IPv6 header fields. Do they have any fields common? 3. Describe fragmentation and reassembly process in IPv6? What happens when a packet bigger than the size a router can process arrives at the router? What is the advantage of eliminating fragmentation and reassembly at the router level in IPv6? 4. What are different mechanisms used for IPv4 and IPv6 transitions and migration?

Answer 1

1)Answer:

Data frames are the pack horses of 802.11, hauling data from station to station. Several different data frame flavors can occur, depending on the network.

Control frames are used in conjunction with data frames to perform area-clearing operations, channel acquisition and carrier-sensing maintenance functions, and positive acknowledgment of received data. Control and data frames work in conjunction to deliver data reliably from station to station.

Management frames perform supervisory functions; they are used to join and leave wireless networks and move associations from access point to access point