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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 frame. The function of overhead in SONET frame are described as follow.
Token Bus Sublayer Protocol Send for some time then pass token If no data after that pass token right away Traffic classes 0, 2, 4 and 6 (highest) Internal s
Normal 0 false false false EN-IN X-NONE X-NONE Application Layer The application layer
FAULT TREE ANALYSIS Reliability engineering, in a nutshell is concerned with failures. How failures occur, how often they occur, and how to minimize them are the basic proble
What is the difference among TFTP and FTP application layer protocols? The Trivial File Transfer Protocol (TFTP) permits a local host to get files from a remote host but does n
What is piggybacked ACK The protocol will be incorrect. Suppose that 3-bit sequence numbers we are using. Consider following situation: A just send frame 7. B gets frame
Define the term - Proxy servers These types of firewalls have been further classified into two types: application level gateways and circuit level gateways. The application
UPD is a layer 4 Transport protocol. It is connection-less due to it does establish a connection thus the 3 step handshake is not needed, it does NOT execute any flow control or ac
Normally, we think of communications science as dealing with the contemporaneous exchange of information among distant parties. Though, many of the same techniques employed in data
Private Networks The information routes from one networks to another network through a leased line. If an organization needs privacy can use a private networks or networ
Unbound Transmission Media Unbound transmission media extend beyond the limiting confines of cabling. They give a good communication alternative for WANS. The lack of physical
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