[Bloat] RED against bufferbloat

[MUSCARIELLO Luca IMT/OLN]

On 02/26/2015 11:39 AM, Mikael Abrahamsson wrote:
> On Thu, 26 Feb 2015, MUSCARIELLO Luca IMT/OLN wrote:
>
>> I wonder when we'll have software routers in residential networks to 
>> innovate a little faster than what happens today just like how 
>> already happens in some data centers.
>
> Well, it would help if operators tried to buy CPEs taht were not only 
> bare-minimum for what they need today.

I think the problem is a bit more complex. For what concerns queuing  
the chipcos
do a lot of offloading in silicon. This is an entire industry choice and 
that silicon
is programmable but opaque and not open.
If chipcos made that choice there is a reason.


>
> Right now I hear more about "virtualised CPE" to save cost (ie move 
> part of the CPE implementation to the data center) than to spend more 
> money on features in the CPE.

That won't solve the problem discussed in this list. I like the approach 
though.

>
> My hope is still on the mobile phone SoCs trickling down to the home 
> gateway space so we get more CPU power there at decent price point.
>
> Also possibly that the whole SDN movement means hardware will get 
> standardized APIs so in case there is hardware acceleration on the 
> CPE, this can be handled by any kernel and not just the kernel that 
> the vendor has modified to work with their special hardware.

I don't  how SDN would help for queuing.
DPDK, netmap instead would help but we are far from having that kind of 
support in CPEs.