**Problem 3: Network Bridges Forwarding Table**Consider the arrangement of learning bridges shown in the following figure:The diagram consists of nodes connected by bridges. The nodes are labeled as follows:- Node A is connected to Bridge B1.- Node C is connected to Bridge B3.- Node D is connected to Bridge B4.- Bridge B2 connects directly to Bridges B3, B4, and B1.Assuming all forwarding tables are initially empty, determine the forwarding tables for each of the bridges (B1 to B4) after the following transmissions:1. C sends to A.2. C sends to D.3. A sends to D.**Task:** Identify ports with the unique neighbor that is reached directly from that port. For example, for Bridge B1, label the ports as "A" and "B2" based on direct connections.

3. Consider the arrangement of learning bridges shown in the following figure: B1 C sends to A. C sends to D. A sends to D. B3 B2 B4 Assuming all are initially empty, give the forwarding tables for each of the bridges B1 to B4 after the following transmissions: Identify ports with the unique neighbor reached directly from that port; that is, the ports for B1 are to 1 1 5 22 1 HD21

3. Consider the arrangement of learning bridges shown in the following figure: B1 C sends to A. C sends to D. A sends to D. B3 B2 B4 Assuming all are initially empty, give the forwarding tables for each of the bridges B1 to B4 after the following transmissions: Identify ports with the unique neighbor reached directly from that port; that is, the ports for B1 are to 1 1 5 22 1 HD21

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

See similar textbooks

Related questions

Q: 36. Figure below shows TCP communication between Alice and Bob. Bob Alice Seq = 1022, 28-bytes data…

A: Here sequence number indicates the first byte in the packet. From there onwards, sequence number of…

Q: Q3) Consider the following schedule: rl(x), r2(x), w2(x), rI(y), r2(y) Let TS(TI)=1 and Ts(T2)=2.…

A: According to the timestamping-orderning protocol. To check the all transction issues about read and…

Q: the second segment arrives before the first segment, in the ACK of the first arriving

A: If the second segment arrives before the first segment, in the acknowledgement of the first arriving…

Q: 6.4-6. Self Learning Switches (c). Consider the network below with six nodes, star-connected into an…

A: A switch can be defined in such a way that it is a networking device that operates at Layer 2 (Data…

Q: q7- Consider a Code Division Multiple Access system in which transmitting users A, B & C have the…

A: In this case, the received signal is the sum of the signals transmitted by A and B: (1 1 1 1 -1 -1…

Q: 1. Alice picks a bit b at random. She picks b = 0 with probability p = 0.2, and she picks b = 1 with…

A: i) Message 1: {"Alice", K, RA}Bob, Message 2: RA, RB "Bob" who is authenticated to person "Alice"…

Q: Eight data terminals statistically share the capacity of an outgoing link. Traffic is combined from…

A: The Handwritten Solution is given below:

Q: . List all non-looping paths that take exactly 4 hops from A to G

A: Question a is saying we have to find all the path that start from A goes to G and path should cross…

Q: For NAT Network Address Translation Scenario: Jenny Bello is a small business owner selling and…

A: We need to answer questions related to private IPv4 address.

Q: 2. Packet transmission. a. Consider a packet of length L that begins at end system A and travels…

A: Below is the complete solution with explanation in detail for the given questions about Packet…

Q: Consider the following two-purty communication problem. Alice and Bob are spatially separated, and…

A: i will provide the solution of this question in step No. 2

Q: 3. Compute a minimum cost multicast tree for router F in the network of Fig 2 (take the associated…

Q: Bits 0 and 1 are sent over an information channel. Due to noise each bit is received incorrectly…

A: Please find the answer below:

Question

**Problem 3: Network Bridges Forwarding Table**

Consider the arrangement of learning bridges shown in the following figure:

The diagram consists of nodes connected by bridges. The nodes are labeled as follows:
- Node A is connected to Bridge B1.
- Node C is connected to Bridge B3.
- Node D is connected to Bridge B4.
- Bridge B2 connects directly to Bridges B3, B4, and B1.

Assuming all forwarding tables are initially empty, determine the forwarding tables for each of the bridges (B1 to B4) after the following transmissions:

1. C sends to A.
2. C sends to D.
3. A sends to D.

**Task:**
Identify ports with the unique neighbor that is reached directly from that port. For example, for Bridge B1, label the ports as "A" and "B2" based on direct connections.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Distance vector routing is used. Router L receives distance vectors from routers I, H, and K as shown below.(image) The distance from L to I is 30, from L to H is 10, and from L to K is 9. Show L’s updated routing table based on the vectors.
Suppose we have switches S1 through S4; the forwarding-table destinations are the switches themselves. The tables for S2 and S3 are as below, where the next_hop value is specified in neighbor form: S2: ⟨S1,S1⟩ ⟨S3,S3⟩ ⟨S4,S3⟩ S3: ⟨S1,S2⟩ ⟨S2,S2⟩ ⟨S4,S4⟩ From the above we can conclude that S2 must be directly connected to both S1 and S3 as its table lists them as next_hops; similarly, S3 must be directly connected to S2 and S4. (a). The given tables are consistent with the network diagrammed in exercise 6.0. Are the tables also consistent with a network in which S1 and S4 are not directly connected? If so, give such a network; if not, explain why S1 and S4 must be connected. (b). Now suppose S3’s table is changed to the following. Find a network layout consistent with these tables in which S1 and S4 are not directly connected. Do not add additional switches. S3: ⟨S1,S4⟩ ⟨S2,S2⟩ ⟨S4,S4⟩ While the table for S4 is not given, you may assume that forwarding does work correctly.…
please please answer asap
Consider the following network with given line speeds and lengths: Assume the speed of light is 2×10^8 m/s, and that the processing and queuing delays are negligible. Node A sends a 1400-byte frame to node C through node B. Suppose Node A starts sending the first bit of the frame at t=0. Answer the following questions: a. At what time (t=?) node B receives the frame in full (i.e. the last bit)? b. After node B receives the frame in full, then it will start sending the frame to node C. Determine the time (t=?) when node C receives the frame in full. c. Suppose at this time node C sends a small acknowledgment back to node A. The transmission time for the acknowledgment is negligible. Calculate at what times (t=?) the acknowledgment arrives at nodes B and A. d. Assume after sending its frame, node A wait for the acknowledgment back from node C before sending the next frame. What is the average throughput (number of transmitted bits per second) of the data flow from node A to…
In a two-phase, total-order multicast system, messages are sent in the following sequence from node S to G1 and G2. G1 and G2 are the members of the group. S sends m1 to G1 S sends m1 to G2 S sends m2 to G2 S sends m2 to G1 Use the basic implementation of the Lamport clock. The clock s at each node start at: S: 4, G1: 6, G2: 1. Show the exchange of messages and their acknowledgments in a clock diagram using the basic implementation of Lamport's clock. In which order and at what times are m1 and m2 delivered?
Problem with constructing MAC. The messages X to be authenticated consists of z independent blocks, so that: X = x1||x2|| . . . ||xz, where every xi consists of |xi| = 8 bits. The input blocks are consecutively put into the compression function ci = h(ci−1, xi) = ci−1⊕xi At the end, the MAC value: MACk(X) = cz+k mod 28 is calculated, where k is a 64-bit long shared key. Describe how exactly the (effective part of the) key k can be calculated with only one known message X.