Calculate the latency (from first bit sent to last bit received) for the following: (a) 100-Mbps Ethernet with a single store-and-forward switch in the path and a packet size of 12,000 bits. Assume that each link introduces a propagation delay of 10 us and that the switch begins retransmitting immediately after it has finished receiving the packet. (b) Same as (a) but with three switches. (c) Same as (a), but assume the switch implements “cut- through" switching; it is able to begin retransmitting the packet after the first 200 bits have been received.

Calculate the latency (from first bit sent to last bit received) for the following: (a) 100-Mbps Ethernet with a single store-and-forward switch in the path and a packet size of 12,000 bits. Assume that each link introduces a propagation delay of 10 us and that the switch begins retransmitting immediately after it has finished receiving the packet. (b) Same as (a) but with three switches. (c) Same as (a), but assume the switch implements “cut- through" switching; it is able to begin retransmitting the packet after the first 200 bits have been received.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter8: Data And Network Communication Technology

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Calculate the latency (from first bit sent to last bit received) for the following: (a) 100-Mbps Ethernet with a single store-and-forward switch in the path and a packet size of 12,000 bits. Assume that each link introduces a propagation delay of 10 µs and that the switch begins retransmitting immediately after it has finished receiving the packet. (b) Same as (a) but with three switches. (c) Same as (a), but assume the switch implements “cut- through" switching; it is able to begin retransmitting the packet after the first 200 bits have been received.
Calculate the latency (from first bit sent to last bit received) for: (a) 1-Gbps Ethernet with a single store-and-forward switch in the path and a packet size of 5000 bits. Assume that each link introduces a propagation delay of 10 us and that the switch begins retransmitting immediately after it has finished receiving the packet. (b) Same as (a) but with three switches. (c) Same as (b), but assume the switch implements "cut- through" switching; it is able to begin retransmitting the packet after the first 128 bits have been received.
Efficiency Principle:Ethernet V1 access protocol was designed to run at 10 Mbps over 2.5 Km using 1500 Byte packets. This same protocol needs to be used at 100 Mbps at the same efficiency (utilization). What distance can it cover if the frame size is not changed? (Note: be careful with the units.
Computer Science A 10-Mb/s Classic Ethernet transmits data packets obtained from the Network Layer. Assume for simplicity that the obtained data packets are directly placed into the MAC Ethernet frame, i.e. that no extra bytes are added in the LLC sub-layer.
What is the delay of sending a data file from a source station to a destination station? Suppose that the length of the data file is 2 Mbytes and the bandwidth of the channel is 1600 bps, and the network link between the sender and receiver is 20000 Km and the speed of the light inside the link is 2x108 meters/second? Assume that the delay is composed of only transmission time and propagation time.
Computer Science assume a frame is traveling from Station A to Station B. The switches have been configured with fixed ports assigned to VLANs and GVRP/VTP has established the VLAN ports for both S1 and S2. Assume that the switches S1 and S2 are just being turned on. Determine the frame header and tag information and (a) Show the frame that Station A sends to S1.(b) Show how S1 processes the frame and delivers it. Also show the switch table.(c) Show how S2 processes the frame and delivers it. Also show the switch table.
A 4480-octet datagram is to be transmitted and needs to be fragmented because it will pass through an Ethernet with a maximum payload of 1500 octets. Show the Total Length, More Flag, and Fragment Offset values in each of the resulting fragments.
Computer A, B C, D and E is arranged in a ring topology. Calculate the propagation delay of sending one digital signal packet from Computer A to Computer E if the distance in each computer link is 2m.
Design an Ethernet network to connect a single client PC to a single server. Both the client and the server will connect to their respective workgroup switches via UTP. Their workgroup switches are connected directly by a trunk link. The two switches are 900 meters apart. They need to communicate at 800 Mbps. Your design will specify the locations of any switches and the transmission link between the switches. Then add another client next to the first client. This client will also communicate with the server and will also need 800 Mbps in transmission speed. Again, your design will specify the locations of switches and the transmission link between the switches.
Topic: Network Delay Assume two hosts, A and B, that are linked by a single link with a rate of R bps and are spaced m meters away from one another. A packet of size L bits is being sent from Host A to Host B. Suppose that the propagation through the connection is occurring at s meters/second. (Answer the following question while showing work) 1) When d-prop is bigger than d-trans, where is the packet's first bit at time t = d-trans? 2) At time t = d-trans, where d-prop is less than d-trans, where is the packet's first bit?
88. Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is ................ a. 2 sec b. 3 sec c. 4 sec d. 1 sec
Assume there is a shared connection with a 1 Mbps speed, such as an Ethernet bus. How long (in microseconds) does it take to deliver a frame with a 1000 bit length over this link?