TrustNet exposes a new Internet-scale architecture for routing- based trust policies of end users. It allows packets to flow only through domains that the user trusts to not leak meta- data.

• Prerequisites
• Run the simulation
• Collecting performance measures
• Parameter change
  • Modify number of Users
  • Modify Users' packet sending rate

• NS3 (version 3.38 preferred, 3.37 works)
• BRITE integration with NS3 (check tutorial)
• (Optional visualization) PyViz Integration with NS3 (check tutorial)

First of all, our simulation covers multiple cases (see our paper's Evaluation section).

Commit Hash correspondences:

• Border: main / 41bce0d9ed5c8b627f309e2cc223ddbb7db5d83f
• Direct: c84060d0234bf81cb262f606bd2b59eb0ff4ae0c
• RR: 61b3458663425dcea7b17db350f3e5398e9c3c42
• Closest: 93cde5876b1a31b0eeb00d1646dc97e29ce07034

Take main branch as an example, to run the simulation for the Border case:

1. Create a traces/ directory within the NS3 directory
2. Clone this repo and name it trustnet inside the scratch directory of NS3.
3. Then from the parent NS3 directory, run

./ns3 run scratch/trustnet/main.cc 2>debug.log

If you need visualization, append --vis at the end.

At the same directory as the above command, run

grep "Receive delay:" debug.log | awk '{ total1 +=$3; count++; total2 += $5} END {print total1/count " " total2/count " " count}'

The result is a tuple of three numbers: (Average Latency | Average Hop Count | # Messages Passed)

Note that if any specific code line number is referenced below to change a certain parameter, they only make sense for the main branch as we take the Border simulation case as an example to illustrate how the parameters can be changed. Nevertheless, similar changes around the same location in the code can be made in other aforementioned branches correspondingly.

Go to scratch/trustnet/main.cc : line 526, you can see there are in total 8 calls to BUILD_CLIENT(...) macro. By default, we are enabling 2 Users. You can uncomment/comment these lines to adjust the number of Users presented in the simulation

Go to scratch/trustnet/dummy_client2.cc : line 568, you can adjust the numeric values of the scheduling delay of the sending behavior of all Users.