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- The maximum packet size (Maximum Transmission Unit or MTU) of an IP packet including IPv4 header on 100 Mbps Ethernet is usually set at 1500 bytes. A typical IPv4 header consists of 20 bytes, and a UDP header consists of 8 bytes. If we split up a file of 20,000,000 bytes so we can send it as a series of UDP payloads, how many IP packets do we have to send in order to transfer the entire file? Enter an integer number without formatting (no commas). Answer:An Internet user would like to transfer a message from his computer (host A) to another computer (host B). The size of the message passed to the IP layer is 3800 bytes. The datagram(s) carrying the message will have to cross two routers (R1 and R2) and 3 networks (NET1, NET2, and NET3) as described in the above figure. Each of these networks has a specific MTU (for example the MTU of network 1 is 1500 bytes. MTU here stands for Maximum Transmission Unit, the largest data that a frame can carry). Fill the table with the IP datagram(s) needed right after passing through NET3 (no need to show your fragmentation for N1 or N2). Assume a 2-byte options in the header. Show all your details (for partial points in case your numbers are incorrect). NET1 MTU=1500 R1 NET2 MTU=640 R2 NET3 MTU 1500 V BIU Fragment # Format Offset Flag (3 bits) Data Length Total Length ...The maximum packet size (Maximum Transmission Unit or MTU) of an IP packet including IPv4 header on 100 Mbps Ethernet is usually set at 1500 bytes. A typical IPv4 header consists of 20 bytes, and a UDP header consists of 8 bytes. If we split up a file of 20,000,000 bytes so we can send it as a series of UDP payloads, how many IP packets do we have to send in order to transfer the entire file? Enter an integer number without formatting (no commas). Answer: The MTU for IP packets on 100 Mbps Ethernet is typically set to 1500 bytes. A typical IPv4 header consists of 20 bytes, and a UDP header consists of 8 bytes. If we split up a file of 25,000,000 bytes so we can send it as a series of UDP payloads, how many bytes do we have to send at the network layer in order to transfer the entire file? Enter an integer number (no commas). Answer: You are sending a 27,000,000 byte file using UDP over IP over an Ethernet with MTU 1500 bytes. The Ethernet header is 14 bytes and the frame checksum is 4…
- In the figure below a router is transferring packets, each of length L= 5 000 bits over a link with a transmission Rate R= 1 Mbps to another router at the other end of the link. The speed prorogation of the light signal on the link is 3x108 m/s. The length of the link is 1 Km. L: packet length (in bits) R: link transmission rates (Mbps) Queue of packets waiting for output link 1-Calculate the total transmission delay. 2- How many packets can be transmitted in one second.In the diagram below, R1, R2 and R3 are three routers. How many local area networks (LANS) do you think the topology has and why? If PC1 wants to send data to PC5 then what is the 1st hop that the data has to go from source PC1? PCO Switcho PCS Switch1 PC1 PC6 PC2 Switch2 PC4 PC3. Consider the network shown below. Assume AS1 and AS2 use OSPF as intra-AS routing protocol. AS3, AS4 and AS5 use RIP as intra-AS routing protocol. eBGP and iBGP are used as interAS routing protocols. Assume there is no physical line between AS2 and AS3 at startup.a) What protocol does the 5b router learn about x? Explain why.b) What protocol does the 2c router learn about x? Explain whyc) Router 2c enters the forwarding table (x, I) when it knows about x. Assume that the dotted line drawn between AS2 and AS3 represents a physical line. Router 2c learns that x is reached via AS1 as well as AS3. Once you know this, does I equal I1 or I2 or I3? Explain your reason.
- Ethernet is a distributed LAN protocol, which means that there is no centralized control node, and therefore a single node's failure will never bring the whole network down. However, can you see any advantage in establishing a centralized LAN in which a single node is in charge of the whole network and determines who receives messages and who waits? Explain.Computer Science IP is a Routed Protocol, just like ICMP and IGMP: whereas RIP, OSPF, BGP are all Routing Protocols, Could you please ustrato the respective roles, interactions and co-working of P4 and TOP 4 v6) with the OSPF and BGP in case of a Router that separates and interconnects Intranet of a large campus to the Internet? You may assume that this Router is one of the multiple Layer-3 devices that the campus has and that this router has three connected LAN interfaces and three connected WAN interfaces. Does this kind of interaction require any specific protocol that is NOT explicitly listed above? If so, which one(s) and why?Suppose, we have a network which is consists of two layer-2 switch, one layer-3 switch and two end devices. If we want to transfer data from this network to another established network which is consists of router, switch and end devices, can it be possible? Explain
- Based on the information in the graph, we need to design a network addressing scheme that will supply the minimum number of hosts per subnet. For the WAN, between the 2 routers, the best mask to use is IP Address 172.16.0.0 FO/O S0/0/0 S0/0/1 F0/1 PERSAL Marketing 24 Hosts Management 15 Hosts Select one: O a. 255.255.255.192 O b. 256.256.256.128 O c. 255.255.255.248 O d. 255.255.255.252 O e. 255.255.255.128 FO/O MERAL Reasearch 60 HostsIn contrast to TCP, which is based on the concept of a connection, IP does not need one. How should these two protocols best share the same protocol stack?Imagine you are the network administrator of University X having 10 campuses in Towson, Maryland. You want to build a connected network of servers (each server is either a regular or a routing one), one at each campus, and want to choose some of them to be the designated routing servers. A routing server will serve regular servers who connect directly to it via high speed cables, and every regular server must connect to at least one routing server. Your goal is to minimize the total length of high speed cable that you must purchase. Given the locations of the 10 campuses, design a plan that requires (1) the shortest length of cable and (2) the least number of routing servers.