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Switching via memory
Traditional computers with switching between input and output being doen under direct control of the CPU input and output ports functioned as traditional I/O devices in a traditional operating systems. Aninput port with an arriving packet first signalled the routing processor. The packet was then copied from the input port into processor memory. The routing processor then extract the destination address from the heard looked up the appropriate output port in the forwarding table and the packet to the output buffers. Note that if memory bandwidth is B packets per second can be written into or read from memory them the overall forwarding throughput ( the total rate at which packets are transferred from input ports to output ports ) must be less than B/2.
IP plus port (IP on layer 3 and port on Layer 4 - In Encapsulation, socket base decision on Network Layer -Layer 3)
Q. Illustrate Stop-and-Wait Automatic Repeat request? - Simplest flow as well as error control mechanism - The sending device keeps a duplicate copy of the last frame transm
Advantage of Repeaters Repeaters provide the advantage of increasing type size of LAN or connecting LAN segments. Repeater can overcome 10 base 5 Ethernet LANM restrictio
You have been asked to design a Banking Network with two primary types of locations. Branches that will have 3 subnets, one /25 subnet one /26 subnet for ABMS and one /26 s
Network throughput It is a symptomatic measure of the message carrying capability of a network. It is termed as the total number of messages network can send in per unit time.
can we solve the problem using bounded buffer space if the propagation delay is arbitrarily large ?
a. If a password to a cipher is exactly 8 characters long, and each character can be selected from [0-9], [a-z], and [A-Z], how many different passwords are possible? b. Suppose
Question: (a) (i) Distinguish between Physical topology and Logical topology. (ii) Explain the following statement with the help of a diagram: "A star topology can have a l
Data Transfer After connection is established bidirectional data transfer can take place. The client and server can both send data and acknowledgments. Figure show
Can you describe how BGP does the decision process?
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