Nt1310 Unit 5 Research Paper
Assignment 4
1) The 3 conventional switching methods are Packet switching, Message switching and Circuit switching
The most typically used methods are packet and circuit switching
2) The 2 methods of packet switching are firstly Datagram approach and secondly Virtual circuit approach
3) Few of the levels of hierarchical switching in a telephone network are regional offices , end offices and tandem offices
4) SS7 is a protocol which is used by the telephone network for signaling, its structure resembles to the 5 layer internet model and its abbreviation is Signaling System Seven. Inside an SS7 network the nodes are referred to as signaling points.
5)
(i) In a circuit switched network the set of switches are interconnected through a series …show more content…
why virtual circuit network is needed a end-end addressing during the both setup phase and teardown phase
Each and every packet has a VCI (virtual circuit identifier) in the data transfer phase, the VCI is used by the frame across the two switches and is a small number containing a switch scope only.
6)
(i) No, in a datagram network the routing table cannot contain two same destination addresses, since all of the destination addresses are distinct (unique) in a datagram based network i.e. it’s impossible to have duplicates in a routing table because of the distinctiveness
(ii) In a virtual circuit network the virtual circuit identifier are considered local and each port has a unique virtual circuit identifier i.e. their pair (port, virtual circuit identifier) is unique
This leads to the conclusion that either there is a possibility of two entries having the same i/p ports or o/p ports or multiple(two) entries containing the same virtual circuit identifier’s. But its improbable or impossible for two entries to have the identical (port, VCI)
1) The 3 conventional switching methods are Packet switching, Message switching and Circuit switching
The most typically used methods are packet and circuit switching
2) The 2 methods of packet switching are firstly Datagram approach and secondly Virtual circuit approach
3) Few of the levels of hierarchical switching in a telephone network are regional offices , end offices and tandem offices
4) SS7 is a protocol which is used by the telephone network for signaling, its structure resembles to the 5 layer internet model and its abbreviation is Signaling System Seven. Inside an SS7 network the nodes are referred to as signaling points.
5)
(i) In a circuit switched network the set of switches are interconnected through a series …show more content…
why virtual circuit network is needed a end-end addressing during the both setup phase and teardown phase
Each and every packet has a VCI (virtual circuit identifier) in the data transfer phase, the VCI is used by the frame across the two switches and is a small number containing a switch scope only.
6)
(i) No, in a datagram network the routing table cannot contain two same destination addresses, since all of the destination addresses are distinct (unique) in a datagram based network i.e. it’s impossible to have duplicates in a routing table because of the distinctiveness
(ii) In a virtual circuit network the virtual circuit identifier are considered local and each port has a unique virtual circuit identifier i.e. their pair (port, virtual circuit identifier) is unique
This leads to the conclusion that either there is a possibility of two entries having the same i/p ports or o/p ports or multiple(two) entries containing the same virtual circuit identifier’s. But its improbable or impossible for two entries to have the identical (port, VCI)