CSE 316 · Session 8 · try it yourself

The delay budget — four terms, one path

One packet crosses n routers, so it crosses n + 1 links. Three of the four delays are physics. The fourth is other people.

Total = (n+1)(ttr + tpg + tpc) + n·tqu
Where the microseconds go — one bar per hop
Transmission
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Propagation
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Processing
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Queuing
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Total, source to destination
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bitsarebits.com · CSE 316 — Data Communication & Networking