WRED (Weighted Random Early Detection)

[lagapidis (Lazarus Agapidis)]

Hi Michael

@robbo7987

I think i understand what you mean now. So 25% for example in the lesson is the maximum amount of packets (1 in every 4) that will be dropped before the average queue depth reaches its threshold and then drops all packets.

Yes, that’s it exactly, you got it. The number of packets that will be dropped changes depending on how the average bit depth changes over time.

@robbo7987

So for example, the green line could be in the middle at around 12-13% discard probability and so that doesn’t mean that 1 in every 4 packets will be discarded, it could be 1 in every 8 because it’s half way and hasn’t approached the maximum MPD yet?

Exactly!

I’m glad this has been helpful!

Laz