Q | Looking for tool which can build a packet buffer and send chosen packets at a set interval

I have been looking for a way to use Linux’s Network Emulator to do this job on a bridge.

I want to achieve having a variable ex. ”Interval” with a value of ex. “20ms”, and with some extra scripting to target packets we get the following result:
- Packet A received: 10:10:30.007
- Packet A sent: 10:10:30.020

- Packet B received: 10:10:30.021
- Packet B sent: 10:10:30.040

- Packet C received: 10:10:30.032
- Packet C sent: 10:10:30.060

This way we can force consistency on the packets we are forwarding.
- Is this already possible to achieve with existing tools?

Thanks
/AMNAS