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initialization imagine that all routers in our sample internetwork comes up at the same time each router sends a greeting
link state packetwhen a router floods the network with information about its neighbourhood it is said to be advertising the basis
routing principlethe principle criterion of successful routing is of course correctness but it not only criterion you might prefer to
network service modelthe network service model defines the characteristics of end to end transport of data between one edge
routersthe network layer also called layer3 manages device addressing tracks the location of devices on the network and
switchgenerally called as two layer switch it performs on physical and data link layers it is a bridge it has
advantages of bridgesby forwarding frames only to the segment where host resides a bridge server the following
bridgea bridge operation sin both physical and data link layer of osi model at physical layer it works like repeater
consider a computer system with three users alice bob and cindy alice owns the file alicerc and bob and cindy can read it cindy can read and write
encode the following plaintext using the caesar cipher lord of the rings b the following ciphertext
advantages of mobile wireless network over a wired network is it is very much popular it is very easy to set up it requires a simple plug and the
state how the different ip-qos needs for controling traffic data and voice applications can be supported in your technology choice from q7 describe
the second point to consider is that from each location some calls are internal to that site and some are going to outside locations again as an
for voip first you need to consider the codec to use although there are many voice codecs myco wants the safest bet and suggests that you design with
develop traffic flow mapping and performance requirements for flowsa traffic flow mappingb performance
lets imagine that we have 2 tcp clients a simple one modtcpclientc like the one you wrote in the first part of project 2 and another one
it is possible for a datagram to generate icmp errors after it has been fragmented for example suppose that each of two fragments cannot be delivered
this code properly implements the ip checksum function on a 32-bit machine unsigned short cksumunsigned short buf int countunsigned long sum 0while
bootstrapping all the processes and establishing correct lines of communication is by itself the toughest aspect of this assignment before writing
design the user interface for mode switching and data entry any way that you like for example to switch an application from transmit mode to receive
the application for this assignment is somewhat articial normally an application would not interact directly with ip instead it would create a udp or
1 suppose the datagram source allocates 12 bytes for this option then when the datagram leaves the source host the rr option area will be like this7
the address recorded by a router should be its outgoing interface that is if a router forwards a datagram that has the record route option enabled
some of the elds of ip and icmp datagrams will be xed some will be settable by the application and others will computed according to the situation
each link layer process will have two connections one up to the appropriate ip layer process and one sideways to the link layer process on the