All the problems on this assignment use the network given below EECS 563 Homework 12 1 Host 6 was just attached to Router 6 how does Host 6 get an IP address 2 Host 1 knows Host 4 s name e g lead buyer buyer com how does Host 1 get Host 4 s IP address 3 Host 1 knows Host 2 s IP address however to send packets over the LAN Host 1 must use Host 2 s MAC address How does Host 1 learn Host 2 s MAC address 4 The LAN s in Buyer Co and Seller Co use CSMA CD Which network has a higher SMax Circle Buyer Co or Seller Co and justify 5 A sliding window link data layer protocol is used between Router 7 and Router 9 Assume the frame size is 5000 bits The protocol header includes an 8 bit field for the sequence number What is the efficiency 6 The forwarding table in Router 8 must contain an entry for packets being sent to the Buyer Co network i e Router 8 must contain an entry for 180 70 65 128 25 Circle True or False and justify 7 Consider communications between Host 1 and Host 4 Find the minimum delay path between Host 1 and Host 4 That is list the set of routers in the minimum delay path between Host 1 and Host 4 8 Wavelength division multiplexers are used to connect a set of servers to Router 6 The fiber and associated equipment between the wavelength division multiplexer and Router 6 can support N wavelengths Note there is a cost per wavelength Each wavelength operates at the same data rate The servers transmit large files the average file transmission time is 1 sec The servers generate files transmission requests at a rate of 9 files sec A request holds a wavelength for the file transmission time If all wavelengths are busy serving other files transmissions then the requests is blocked Design the systems i e find the number of wavelengths required to for a probability of blocking of 2 2 12 HW Summary EECS 563 2024 Deployed nb 9 Packets arrive at Router 2 destined for Router 7 at a rate of 9000 packets sec the average length per packet is 1250 Bytes bits a What is the average delay in ms b Specify a new link rate in Mb s to reduce the average delay by a factor of 4 10 The Buyer Co and Seller Co negotiate with ISP A and ISP B to use MPLS a Why do both ISP A and ISP B have to be involved in the negotiation b What is the benefit to Buyer Co and Seller Co of using MPLS 11 Buyer Co Seller Co ISP A and ISP B are all AS s BGP is a routing protocol is used to build the forwarding tables in Routers 3 4 5 and 6 TRUE or FALSE Circle your answer 12 The IPv4 layer in Host 1 sets the TTL field in the IP packet header a Does the IP packet reach Host 4 if Host 1 sets the TTL 4 NO NO b Does the IP packet reach Host 4 if Host 1 sets the TTL 15 13 Suppose there are hosts directly connected to Router 2 and Router 7 using TCP Reno with an MSS 1500 Bytes There is wireless link between Router 2 and Router 7 operating at a BER 4 10 7 Assume the link layer does not do error recovery i e use an ARQ What is the average throughput in Mb s on the link between Router 2 and Router 7 Your answer can be checked using Average Throughput of TCP Connection for TCP Reno Circle YES or Circle YES or