Host 1
Stuff
Blue box
Important blue box
Local storage
Host 2
Stuff
Blue box
Important blue box
Zzzzzz zzzzzzzz zzzzz zzzz zzzz
zzz
Xxx xxxx xxxx xxxx
Local storage
Confusing pink box
Confusing pink box
Watchdog
Watchdog
c
Networking to
the outside world
Watchdog
Host 2
More hosts
Watchdog
b
abcdefghijklm
Da da da de de de yabba yabba yabba
Yabba yabba yabba
Stuff going this way
Data going around bend
a
Figure 1: Complex overview
yap 2/1