Q3/ For the given network topology find the best path to go from A to D using flow based routing algorithm knowing that the mean packet size is 800 bits and the mean number of arrivals in packets/sec listed in the table Detinalion BCD E B 20 7 ABG ABFO AE AB AEF 4. 20 10 BFD BFE BA BG BF 4 2. D GBA GB GD GE GEF A 20 20 20 10 DFBA DFB DG DGE DF EA EFB EG EGD EF E 50 F 4 2 4. FEA FB FEG FD FE onog
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- Q2/ For the given network topology find the best path to go from A to I flow based routing algorithm knowing that the mean packet siza bits and the mear number of aviale in na 20 10 10 10 10 DESTINATION D All AC AD AF AFGACH AD ARDU BAP CA CAB CDEF CGCH C D8GHE Dir DU ECA ECAB EDC TA FAB TU GGA CBC GHE CH HHECA HG HSC HE DBA HE SOURCE 3. --2-s---Suppose that a router receives simultaneously 3 packets (pkt1, pkt2, and pkt3) with length L1 = 1 Kbit, L2 = 8 Kbit, and L3 = 4 Kbit, respectively. The three packets are to be forwarded through the same link with transmission rate R = 4 Mbps. Packets are to be forwarded in the following order: pk1, pkt2, pkt3. R 1. What is the queueing delay of pkt1? 2. What is the queueing delay of pkt2? 3. What is the queueing delay of pkt3? 4. What is the average queueing delay at router R?Question 7 Consider the Go-back-N protocol with a sequence number space {0,1,2,3} and a window size N=3, and suppose that the sender wants to send 7 packets in total (excluding retransmissions), where the first packet sent will get sequence number 0. Assume that the 2-nd packet sent by the sender as well as the first ACK with a sequence number of 2 are both lost. All other messages arrive within 1 unit of time, and the sender uses a timeout value of 4 time units before initiating a retransmission. You can assume that the sender sends all packets as soon as possible and we neglect the transmission delay. • List all sequence numbers in the exact order in which they arrive at the receiver. (Note that this includes sequence numbers of packets sent in retransmission.) • What are the values of the send_base and the rcv_base variables after the sender has received the ack for its final packet?
- Consider the network shown below, and Dijkstra's link-state algorithm. Suppose that Dijkstra's algorithm has been run to compute the least cost paths from node E to all other nodes. Now suppose that source node E has a packet to send to destination node A. What is the first router to which E will forward this packet on its path to A? O C O O O LL B A 3 2 B 8 D 10 E 4 2 FQ2/ For the given network topology find the best path to go from A to J using flow based routing algorithm knowing that the mean packet size is 400 bits and the mean number of arrivals in packets/sec listed in the table. B D 20 10 10 A 10 10 DESTINATION A B D E F H I AF AFG ACEHAHDI ABDU AB 2 AC ABD 2 BD A ACE BA BAC BACE BAF BG BGH BDI BOU CDEF CIG CBH CIGE CI 2. DU CA CAB CD CDE D DBA DB DC DBGHE DIF DBG DIGH DI ECA ECAB EDC ECF EHG EH EHGI EHU CEDE FA FAB FID FCE FO FGH FI FU G GFA GBD GB GBC GHE GF GH GHI H HECA HGB HBC HGID HE HGF HG HGI HJ IDBA IDB IGHE IGH TIDBA JIDB JC JID JHG SOURCEConsider two systems P and Q connected via a router R with the bandwidth of 2 Gbps. The length of the packet is 1000 bytes. The propagation delay between P and Q is 200 microseconds. The distance between the P and R is 10 km while the distance between R and Q is 5 km. The propagation speed in meter per second if each link is having the same 10³ km/s? propagation speed is
- A link has a transmission speed of 1010 bits/sec. It uses data packets of size 2000 bytes each. The efficiency of the stop-and-wait protocol in this setup is exactly 30%. Determine the value of the one-way propagation delay in milliseconds. Assume that the acknowledgement has negligibletransmission delay, and its propagation delay is the same as the data propagation delay. Consider the same transmission speed and packet size for Go back-N protocol with window size 8 and find the channel utilization.The Routing Information Protocol (RIP) is an intradomain routing based on routing. * link state distance vector path vector none of the above The metric used by is the hop count. * OSPF RIP BGP none of the aboveRefer to the exhibit. The network topology is provided and we are using Distance Vector Routing (Bellman Ford algorithm). Fill out the table for the cost and next hop for Router E. Router next cost hop To A AO B 12 C 25 D 40 E 14 F 23 G 18 H 17 I 21 J 9 K 24 L 29 в F C 24 20 21 36 31 28 10 18 19 27 8. 24 30 22 20 40 31 20 31 19 22 19 14 10 10 11 7 22 22 33 9 B. in
- QUESTION 78 Consider the network shown below. Suppose all ASs are running OSPF for their intra-AS routing protocol. Suppose EBGP and IBGP are used for the inter-AS routing protocol. All links in any AS has the same weights AS1 AS3 1b 1a 3b 1ç 110 30 19 За J11 3d AS2 12 114 2d 113. 4b 16 2a 15, 20 2b AS4 a. Router 3c learns about prefix x from which routing protocol? b. Router 3a learns about x from which routing protocol? c. Router 1c learns about x from which routing protocol? d. Router 4b learns about x from which routing protocol? Assuming AS1 and AS2 uses hot potatoes routing What woud be the entry for x in the 2b routing table? What would be the entry for x in the 2d routing table? What would be the entry for x in the 1c routing table? How AS2 can restrict AS1 from routing to X via AS2?For the given network topology find the best path to go from A to K using flow based routing algorithm knowing that the mean packet size is 800 bits and the mean number of arrivals in packets/sec listed in the table.In protocol 6, the code for frame arrival has a section used for NAKs. This section is invoked if the incoming frame is a NAK and another condition is met. Give a scenario where the presence of this other condition is essential.