[Bloat] datapoint from one vendor regarding bloat

[Mikael Abrahamsson]

On Thu, 11 Apr 2019, Jonathan Morton wrote:

> So what this boils down to is a two-stage TBF policer.  From idle, such 
> a system will let a burst of traffic through unfiltered, then start 
> dropping once the bucket is empty; the bucket is refilled at some 
> configured rate.  The two-stage system allows implementation of 
> "PowerBoost" style policies.

I'm not so sure:

"Buffering (Enqueuing) Once a packet is assigned to a certain forwarding 
class, it will try to get a buffer in order to be enqueued. Whether the 
packet can get a buffer is determined by the instantaneous buffer 
utilization and several attributes of the queue (such as Maximum Burst 
Size (MBS), Committed Burst Size (CBS) and high-prio-only) that will be 
discussed in more detail later in this chapter. If a packet cannot get a 
buffer for whatever reason, the packet will get dropped immediately. "

The person I talked to yesterday insisted that they actually did 10ms of 
*buffering* *bidirectionally*, because we specifically discussed policing 
and buffering and the difference.

I have access to one of their devices in our lab, I'm going to do testing 
of this in the next few weeks so I'll know for sure by then.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se