Q1: Show the execution Diagram with time progress of the DCF model… Q1:Show the execution Diagram with time progress of the DCF model of IEEE802.11a for the following scenario:IEEE 802.11 Ad Hoc network running IEEE 802.11a (20 Mbps) has 3 nodes(N1, N2, N3). Assume that:- In the beginning, N1 has a packet to be sent to N2.- At instant 40 ?, N2, N3 have packets to be sent to N1.- At instant 400 ? N1 has a packet to be sent to N3.- Random number generator (for backoff) will give the following values for:N1: 1, 2,. . . ; for N2: 1, 4, . . .,for N3: 3, 5, . . . ;(These are in slots).- The Network uses DCF mode with RTS/CTS.- SIFS is 10 ?, DIFS 50 ?, and slot time is 10 ?.- All data packets have the same length of 500 bytes,- Control packets and header have a length of 25 bytes.Q2.For the figure below, if CN(172.16.1.1) sends a packet to the MN(10.1.1.1), howwould be the IP Packet Header at the Source (CN), after the Home Agent,and at the Destination(MN) (consider the FA address as the care-of address),when using:A) IP-in-IP Encapsulation (just show the fields of addresses),B) Minimal Encapsulation.,Image transcription textHome Agent 10.1.1.254 XI X X X Mobile Node A X X X X X X Correspondent Node Home Address 10.1.1.1 ForeignAgent 172. 16.1.1 192.168.1.254 Visited Network A Home Network Local Network B 192.168.1.0/24 10.1.0.0/16… Show moreComputer ScienceEngineering & TechnologyNetworkingCOMMUNICAT 9321
