Re: pontification bloat (was 10GE TOR port buffers (was Re: 10G switch recommendaton))

[Jared Mauch <jared () puck nether net>]

See below

Jared Mauch

On Jan 27, 2012, at 9:13 PM, George Bonser <gbonser () seven com> wrote:

> > Router(config)# policy-map pol1
> > Router(config-pmap)# class class-default
> > Router(config-pmap-c)# bandwidth per 70
> > Router(config-pmap-c)# random-detect
> > Router(config-pmap-c)# random-detect ecn
> >
> > Requires other bits in the network to be ECN aware, but if they are,
> > good stuff.
> >
> > --
>
> +1
>
> There is no excuse these days for stuff not to be ECN aware.  That GREATLY mitigates things as it makes hosts aware 
> pretty much immediately that there is congestion and they don't have to wait for a lost packet to time out.  I 
> brought it up to a Brocade engineer once asking for the option to set ECN rather than drop the packet and he said 
> "nobody uses it".  I told him nobody uses it because you don't have the feature available.  How can anyone use it if 
> you don't have the feature?

This sounds a lot like most peoples ipv6 rationale as well. 


I'm still feeling some scars from last time Ecn was enabled in my hosts. Many firewalls would eat packets with. Ecn 
enabled.