[Bloat] number of home routers with ingress AQM

[Mikael Abrahamsson]

On Tue, 2 Apr 2019, Sebastian Moeller wrote:

> 	See above how Deutsche Telekom deals with that issue, at least in 
> the German market.

I've read rumours about some ISPs implementing interaction with the VDSL 
DSLAM where there is an estimation of the current link-speed for each 
individual customer and then it tries to set the BNG egress shaper 
appropriately.

I am very happy about my FTTH solution I have now since from what I can 
see the L2 network is almost never a limiting factor (much better than my 
DOCSIS connection) so my bidirectional SQM with CAKE seems to work very 
well.

Still, the HGW can never solve these problems properly, the egress shaping 
in the BNG needs to do a proper job. From what I have been told, there has 
been improvements here in the past few years.

What I am more worried about is the egress shaping from the HGW. I talked 
to several vendors at BBF and they talked about ingress policing being 
commonly used on the BNG. This means no ingress shaping at all (just 
packet drops if they exceed the configured rate). I don't know about 
buffering on the HGW though and how the policed rate is set compared to 
the L2 rate the HGW can send via.

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