| Routing in the
Internet (Review) |
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| – | datagrams
in Internet flow from on link to another via |
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| routers |
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| – | computers
send and receive datagrams based on their IP |
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| (Internet
Protocol) address |
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| – | Domain
Name Service (DNS) translates machine |
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| names
into IP address |
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| – | Internet
routing is dynamic, unpredictable, subject to |
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| congestion,
and performed on a best-effort basis. IP |
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| does
not guarantee that datagrams will be delivered |
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| (current
loss rate 2%-5%, expected to grow due to |
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| congestion) |
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