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Access Networks and Physical Media
Access networks are the physical links(S) that connect an end systems to its edge router. Which is the first router on a path from the end systems. The access networks thus provides the infrastructure to connect the so called customer premises into the network infrastructure. Figure 2.3 shows several types of access links are highlighted in thick shaded lines.
figure Access Network
Primary Function Core network typically providing the followings functionality 1.Aggregation : the highest level of aggregation in a service provider networks. The
differntiate between error control and flow control in data link layer
Can you define the difference among trusted and untrusted networks?
Q. Show the Routing Table? Routing Table Every router remains a routing table that has one entry for every destination network of which the router is aware Proces
What is Feasibility condition (FC)?
Describe the term Disaster Management as security threats Making and testing backups regularly could be the simplest and easiest of all the security measures. But a new questio
DLCI- Data Link Connection Identifier. A frame-relay service provider usually assigns DLCI values that are used by frame-relay to distinguish among different virtual circuits on th
Time out The protocols name Go Back N is derived from the sender behaviour in the presence of lost or overly delayed packets. A timer will again be used to recover
So how packets do determines their way across the Internet? Does each computer linked to the Internet know where the other computers are? Do packets just get 'broadcast' to every c
What is ICMP? ICMP is Internet Control Message Protocol. It gives messaging and communication for protocols within the TCP/IP stacks. This is also the protocol that manages err
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