affic Engineering with Open Figure Figure 1 reveals a network where the traffic flowing from the first host which is attached to router u to the server which is attached to router z needs to be routed along the path u,v,w,z while the traffic flowing from the second host attached to router x router to the server which is attached to router z needs to be routed along the path x,w,y,z. Please describe the local flow table of each of the switches u,v,x,w,y,z (in terms of match and action rules) to enable the routing of the two traffic flows according to the constraints described above. The following IP addresses will be used for the two hosts and the server. • The first host belongs to the subnetwork 10.1.0.0/16. It is attached to router U and has an IP address of 10.1.0.1 • The second host belongs to subnetwork 10.5.0.0/16. It is attached to router X and has an IP address of 10.5.0.1 The server belongs to the subnetwork 10.11.0.0/16. It is attached to router Z and has an IP address of 10.11.0.1

affic Engineering with Open Figure Figure 1 reveals a network where the traffic flowing from the first host which is attached to router u to the server which is attached to router z needs to be routed along the path u,v,w,z while the traffic flowing from the second host attached to router x router to the server which is attached to router z needs to be routed along the path x,w,y,z. Please describe the local flow table of each of the switches u,v,x,w,y,z (in terms of match and action rules) to enable the routing of the two traffic flows according to the constraints described above. The following IP addresses will be used for the two hosts and the server. • The first host belongs to the subnetwork 10.1.0.0/16. It is attached to router U and has an IP address of 10.1.0.1 • The second host belongs to subnetwork 10.5.0.0/16. It is attached to router X and has an IP address of 10.5.0.1 The server belongs to the subnetwork 10.11.0.0/16. It is attached to router Z and has an IP address of 10.11.0.1

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

21. Consider the network below. a. Show the forwarding table in router A, such that all traffic destined to host H3 is forwarded through interface 3. b. Can you write down a forwarding table in router A, such that all traffic from H1 destined to host H3 is forwarded through interface 3, while all traffic from H2 destined to host H3 is forwarded through interface 4? H1 H2 1 2 3 1 2 2 1 2 H3
1. Consider a path from host A to host B through a router X as follows: A- -X-B The capacity of the link AX is denoted Ra, while the capacity of the link XB is denoted Rb in units of [bits/s]. Assume that Ra Ri. Is it possible that the second packet queues at input queue of the second link? Explain. Now suppose that host A sends the second packet T seconds after sending the first packet. How large must T be to ensure no queueing before the second link? Explain.
Draw a sequence diagram for the following scenario. In a network, two nodes communicate with each other. These are the sequence. 1) Node J sends ping message to Node L 2) Node L sends ICMP echo reply to node L. Now Node A is having the MAC address of Node L. 3) Node J starts TCP handshake with Node L by sending SYN message. 4) Node L sends (SYN+ACK) back to node J. 5) Node J sends the ACK to Node L.
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.
32. Consider the network shown below. Suppose AS3 and AS2 are running OSPF for their intra- AS routing protocol. Suppose AS1 and AS4 are running RIP for their intra-AS routing protocol. Suppose eBGP and iBGP are used for the inter- AS routing protocol. Initially suppose there is no physical link between AS2 and AS4. a. Router 3c learns about prefix x from which routing protocol: OSPF, RIP, eBGP, or iBGP? b. Router 3a learns about x from which routing protocol? c. Router 1c learns about x from which routing protocol? d. Router 1d learns about x from which routing protocol? 3b 3c AS3 3a 1a 4c 1c 1₁ 4b AS4 1d AS1 1₂ 4a 1b X 2a 2c AS2 2b
Consider the following network. A. Display router forwarding table A. such that all traffic for H3 is transmittedthrough interface 3. b. May you enter a transmission table on router A, in that all traffic from HI to host H3 is transmitted via interface 3, while all traffic from 112 to host H3 is transmitted via interface 42? (Hint: This issue is a trick.)
Destination IP-based forwarding is used by the per-router control plane (sometimes called the classical network) to connect with other routers. If messages are forwarded depending on their destinations' IP addresses, what are the boundaries of this approach? Include a description of at least three limitations, preferably with examples. To what extent does Software-Defined Networking (SDN) contribute to solving these problems? The examples will serve as the explanation.
as a possible congestion control mechanism in a subnet using virtual circuits internally, a router could refrain from acknowledging a received packet until (1) it knows its last transmission along the virtual circuit was received successfully and (2) it has a free buffer. for simplicity, assume that the routers use a stop-and-wait protocol and that each virtual circuit has one buffer dedicated to it for each direction of traffic. if it takes 7 sec to transmit a packet (data or acknowledgement) and there are n routers on the path, what is the rate at which packets are delivered to the destination host? assume that transmission errors are rare and that the host-router connection is infinitely fast.
A protocol stack used by many applications is to use TCP at the transport layer and IP at the network layer. The ICMP protocol is also used to report on problems encountered by IP. A) The IP protocol provides a service referred to as "best effort". Describe the services of IP and potentially ICMP protocol, with respect to flow control( ensuring the sender does not overwhelm the receiver). B) Describe the services TCP provides with respect to flow control and explain the mechanisms it uses to overcome the deficiencies of IP.
Refer to the network figure above, showing two Ethernet Subnets connected through an IP Router, answer the following question 1-5. The devices in each subnet are connected locally to each other through layer two intermediate devices such as Ethernet switch and ethernet hub. For each device in the subnets, both its Internet Protocol (IP )address and its MAC address (also called the Physical address or the Ethernet address are shown. The subnet mask used by all devices is 255.255.255.240 (which is the same as the prefix length “/28”). 1. If Client #1 wants to send a broadcast packet to all the devices on the left subnet (containing client #1, client #2, client #3) what destination IP address should be used? (Mention in both binary and decimal format.) 2. What is the first and last assignable IP address for the left subnet above (containing client #1 and #3)? (Mention in both binary and decimal format.)
Consider a router that interconnects three subnets: Subnet 1, Subnet 2, and Subnet 3. Suppose all of the interfaces in each of these three subnets are required to have the prefix 223.10.128/24. Also suppose that Subnet 1 is required to support at least 50 interfaces, Subnet 2 is to support at least 100 interfaces, and Subnet 3 is to support at least 12 interfaces. Provide three network addresses (of the form a.b.c.d/x) that satisfy these constraints.
2. Now suppose there are two links between source and destination, with one router connecting the two links. Each link is 5,000 km long. Again suppose the MP3 file is sent as one packet. Suppose there is no congestion, so that the packet is transmitted onto the second link as soon as the router receives the entire packet. What is the end-to-end delay?