DINGDAMU/P4Log_and_P4Exp

Logarithmic and exponential-function estimation in P4

P4

Logarithm and expnential-function estimation in P4 language

Citation

@inproceedings{ding2019estimating,
  title={Estimating Logarithmic and Exponential Functions to Track Network Traffic Entropy in P4},
  author={Ding, Damu and Savi, Marco and Siracusa, Domenico},
  booktitle={IEEE/IFIP Network Operations and Management Symposium (NOMS)},
  year={2020}
}

Installation

Install docker if you don't already have it.

Clone the repository to local

git clone https://github.com/DINGDAMU/P4Log_and_P4Exp.git

```
 cd P4Log_and_P4Exp
```
If you want, put the p4app script somewhere in your path. For example:
```
cp p4app /usr/local/bin
```
I have already modified the default docker image to dingdamu/p4app-ddos:nwhhd, so p4app script can be used directly.

P4Log algorithm

```
./p4app run log.p4app 
```
After this step you'll see the terminal of mininet
Forwarding some packets in mininet
```
 pingall
```
Enter log.p4app folder
```
 cd log.p4app 
```
Check the result by reading the register
```
 ./read_registers1.sh
```
Register[0] is the input value and Register[1] is the result of log2(Register[0]) amplified $2^{10}$ times

P4Exp algorithm

```
./p4app run exp.p4app 
```
After this step you'll see the terminal of mininet
Forwarding some packets in mininet
```
 pingall
```
Enter exp.p4app folder
```
 cd exp.p4app 
```
Check the result by reading the register
```
 ./read_registers1.sh
```
Register[0] is the base and Register[1] is the exponent, the exponential-function result is in Register[2]