# Active Measurement Plugins

A number of plugins ship with the PATHspider distribution. You can find documentation for them here:

- DSCP Plugin
- ECN Plugin
- Evil Bit Plugin
- H2 Plugin
- TCP Maximum Segment Size Plugin
- UDP Zero Checksum Plugin

## 3rd-Party Plugins

You will be able to list the 3rd-party plugins installed by running:

    pathspider --help

There is no need to register 3rd-party plugins with PATHspider before use, they will be automatically detected once they are installed.