Re: [NSIS] I-D ACTION:draft-rahman-rtg-router-alert-dangerous-00.txt

On Mon, 3 Nov 2008, David R Oran wrote:
>> As long as nobody defines that DCCP, SCTP, TCP port 80, or a random 
>> protocol X requires special processing at routers forwarding a packet, 
>> nobody objects.
>
> Uh, what about ECN? The notion of "special processing" is contingent on just 
> what constitutes "special". I don't think anybody said anything about a 
> "random" protocol. In fact, very few protocols over the years have 
> needed/wanted on-path inspection.

ECN doesn't _require_ routers to do anything.

Routers may, if they want, to do optimizations in their drop stragies 
and modify packet's ECN bits.  My understanding is that typically 
routers require special configuration to do this (and many don't even 
support it), and configuring this is rather rare.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings