問題文
A team enables the transport in lossy mode and a colleague concludes that congestion handling is now entirely absent. Which correction should be given?
選択肢
- Congestion handling moves entirely to the end hosts, which detect loss and back off, so nothing remains on the switch that reacts to queue depth.
- The switch begins pausing the whole link instead of a single class.
- The marking-based congestion signal and its absolute threshold remain in effect in lossy mode; what the lossy mode drops is the per-priority pause and the reserved pool for the transport.
- The colleague is right, because both mechanisms are part of the same lossless profile and selecting the lossy mode reverts the switch to the plain forwarding behavior it had before the transport was configured at all, leaving only the default queue weights in place.