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Process Switching
It applies the brute force method to switch packets wih consumption of large amount of CPU time
List of items are needed when switching packets
Routing tables- DRAM
Routing algorithm - Flash memory
Packets- SDRAM
I/O memory - Memory pools - DRAM, Kernal participation
Fast Switching
Same components which are needed for process switching.
Here Cache concept has involved for storing packets header in hash table structure. It increases the performance of switching fastly. Main purpose SDRAM is performs the switching packets quickly with efficiently.
In Cisco IOS Release 10.2, overcome the hash table structure by implement the was another data structure called a 2-way radix tree (a form of a binary tree).
What is CRC and Checksum CRC (Cyclic redudancy check) CRC, is the most powerful of the redundancy checking methods, is based on binary division. Checksum Checksum
compare routing algorithms with non adaptive algorithms
Briefly describe NAT and RIP NAT is Network Address Translation. This is a protocol that gives a way for multiple computers on a common network to share one connection to the I
The LAN switch copies the whole frame into its onboard buffers and then looks up the destination address in its forwarding, or switching, table and verifies the outgoing interface
Q. Which steps are used at receiver end by check sum? The receiver follows these steps: The unit is divided into "k" sections each of "n" bits All sections are
We know that all processors share a common memory in shared memory model. Every processor, however, can be assigned a different part of the program stored in the memory to implemen
What is Stop-and-Wait Protocol? In Stop and wait protocol, sender sends single frame, waits unless it receives confirmation from the receiver (okay to go ahead), and then sends
Take the maximum packet lifetime, T. It's stated that T must be big enough to make sure the packet and its ACK have vanished. Why do we have to have the ACK?
Describe difference among Single path and Multipath?
What Automatic Repeat Request (ARQ)? Error control is both error detection and error correction. It allows the receiver to inform the sender of any frames lost or damaged in tr
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