Disable router from transmitting anything for sometime


I am using ras pi as a router. I am working on a project in which I need to stop router from transmitting anything for sometime(around 4ms). The packets which arrive during this duration need to be buffered.
How can I acheive this?

I think you can achieve this with linux traffic control.

But the part with buffering everything in this time isn't fully realizable.
For example if your ethernet interface does transmit at full speed in both directions, where should this data be stored/held?

Ensuring that the data is received on the other side is normally a task of the application or used protocol.

you might have some success with using Ethernet flow control on a switch. the RPI sends a flow stop, the switch buffers, and 4ms later the pi sends a flow start and things continue...