Map Development Area (MDA)
Location:
_/_
internet
_/_
tcpip
_/_
ip
| ip |
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Types:
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Comment:
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own logical addressing scheme and path determination
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Comment:
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unreliable delivery (reliability provided by transport layer)
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Features:
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delays of packets: router too busy -- loss of packets: buffer overflow in router -- duplication of packets: retransmission by sender -- out-of-sequence: packets can go different path (reordered at transport layer) -- fragmentation: links with less bandwidth (reassembling of fragmented packets done by IP)
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Comment:
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used to deliver packets across multiple links -- Data Link technology independent
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Comment:
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packet-switched: every packet carries source and destination address -- connection-less: no continuing connection between end-hosts, no path is established before transmitting and no context is saved
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