Internet topology dynamics in ten minutes
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1 Internet topology dynamcs n ten mnutes Sergey Krgzov under the supervson of Clémence Magnen Complex Networks LIP6 (UPMC CNRS) 4 March 2014
2 Outlne 1 What do we observe? 2 Why t s so mportant? 3 How do we study our observatons? 2
3 What do we observe?
4 Internet IP-level topology Nodes: Lnks: IP addresses connectons between hosts 3
5 Internet IP-level topology Impossble to obtan a full map Nodes: Lnks: IP addresses connectons between hosts 3
6 Ego-centered vews d 1 d 2 m (shortest) paths between montor and destnatons 4
7 Ego-centered vews d 1 d 2 m a measurement by tracetree 4
8 Ego-centered vews d 1 d 2 m another measurement by tracetree load-balancng 4
9 Ego-centered vews d 1 d 2 m yet another measurement by tracetree evoluton of routes 4
10 Ego-centered vew dynamcs d1 d2 d1 d2 d1 d2 m m m Tme Fast perodc measurements = study of the dynamcs 5
11 Why we should study ths?
12 Some possble applcatons Develop a good model of the network Securty (unstable routes means more spyware?) Robustness of the network and protocols Event detecton Web cachng etc 6
13 Can we see the dynamcs?
14 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement (delay 1 mn 30 sec)
15 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement (delay 1 mn 30 sec)
16 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
17 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
18 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
19 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
20 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
21 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
22 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
23 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
24 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
25 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
26 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
27 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
28 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
29 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
30 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
31 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
32 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
33 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Load-balancng (delay 1 mn 30 sec)
34 Evoluton of symmetrc dfference between measurements (one destnaton) : frst measurement Evoluton (delay 1 mn 30 sec)
35 Delay: 1 mn 30 sec 3 mn Destnatons
36 Delay: 1 mn 30 sec 3 mn Destnatons
37 Overvew of problems and methods number of destnatons frequency of observatons? observed evoluton Methods: Real-world measurements Smulated measurements usng random graphs Theoretcal study of dynamc random graphs Stochastc process estmaton from partal observatons 9
38 Questons?
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1 Which two statements are true regarding the advantages of the use of static routes? (Choose increased security reduced effort in configuring routes the administrator maintains control over routing easier
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