[Bloat] What is fairness, anyway? was: Re: finally... winning on wired!

[john thompson]

Some firewalls (like sonicwall enhanced) can slow down acks to traffic
shape inbound traffic.  It's not perfect, but it's often better than
nothing.

Most business-class ISP's should offer QOS in both directions.  We
certainly do for our T-1 or better customers.

(sorry, I meant this to be a reply all)

On Sat, Feb 4, 2012 at 8:57 PM, George B. <georgeb at gmail.com> wrote:

> On Sat, Feb 4, 2012 at 4:43 PM, Jonathan Morton <chromatix99 at gmail.com>
> wrote:
>
> > There are two good things you can do.
> >
> > 1) Pressure your ISP to implement managed queueing and ECN at the
> head-end device, eg. DSLAM or cell-tower, and preferably at other
> vulnerable points in their network too.
>
> Well, if they have a Cisco network, that might work.  Few other
> network gear vendors actively support ECN.
>
> > 2) Implement TCP *receive* window management.  This prevents the TCP
> algorithm on the sending side from attempting to find the size of the
> queues in the network.  Search the list archives for "Blackpool" to see my
> take on this technique in the form of a kernel patch.  More sophisticated
> algorithms are doubtless possible.
>
> Probably not something I want to use in production.
>
> Thanks, Johnathan.   Now yet another question:
>
> Two different server configurations (these are real life examples, by the
> way):
>
> 1.  eth0 and eth1 bound as bond0 with vlans hanging off of them.
> Where to put the qdisc?  On the bond interface?  On the Ethernet
> interfaces?  On the vlan interfaces?
>
> 2.  eth0 and eth1 have vlan interfaces attached as eth0.10, eth1.10
> and eth0.20, eth1.20.  Those are bound to bond interfaces, bond10 and
> bond20.  Same question, where best to apply the qdisc.
>
> George
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-- 
“The world is not comprehensible, but it is embraceable.”
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