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Switching via an interconnection network
The switching techniques overcome the bandwidth limitation of a single shared bus. This technique use a more sophisticated interconnection network such as those that have been used in the past to inter connect processor in a multiprocessor computer architecture.
A crossbar switch is an interconnection network consisting of 2 N buses that connect N input ports to N output ports as shown in figure. A packet arriving at an input port travels along the horizontal bus attached to the input port until it intersects with the vertical bus leading to the desired output port. If the vertical bus leading to the bus output port is free the packet is transferred to the output port. If the vertical bus is being is used to transfer a packet from another port to this same output port. The arriving packet is blocked and must be queued at the input port.
How to protect computer Hardware by threats The first component in the computer system vulnerable to attacks or threats, and most important to be protected, is the hardware.
telecommunication processors
Bridges The bridge function is to attach separate homogeneous networks. Bridges map the Ethernet address of the nodes residing on each network segment and allow only essential
State the term - Lot of care required while programming It is a common and well-known saying that many developers of "secure systems" leave a "back door" way for themselves so
Set Cookies 1178345 When Hussan browser receives the HTTP response message it sees the set cookies header. The browser then appends a line to the special cookie file th
Why are packets important in a network?
TELNET Protocols The TCP/ IP protocol suite includes a simple textual remote terminal protocols called TELNET that allow a user to log into a computer across an interne
Two broad classes of middleware are a) General middleware b) Service-specific middleware.
Overhead SONET overhead is not added as headers or trailers as we have seen in other protocols. Instead SONET insert overhead at a variety of location in middle of the f
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