[156626] in North American Network Operators' Group
Re: Big Temporary Networks
daemon@ATHENA.MIT.EDU (Masataka Ohta)
Thu Sep 20 20:53:39 2012
Date: Fri, 21 Sep 2012 09:51:10 +0900
From: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
To: nanog@nanog.org
In-Reply-To: <CALOgxGYw_EHVedmyH-nmp19ANd93_=UD_thGsotFpQxTc+DaLw@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
TJ wrote:
>>> So, a single example of IPv4 behaving in a suboptimal manner would be
>>> enough to declare IPv4 not operational?
>>
>> For example?
> "Heavy reliance on broadcast for a wide range of instances where the
> traffic is really only destined for a single node" would seem to be rather
> sub-optimal.
It's not sub-optimal w.r.t. link bandwidth, if the link is
a broadcast domain. Moreover, broadcast is no worse than
all-node multicast.
And, given the CATENET model of the Internet to connect
broadcast domains including small number of devices by
routers, over which there is no broadcast, that is a
sub-optimal operation.
In this thread, there is an example of such an operation to
have a lot of WiFi base stations with omnidirectional antennas
at full power.
No protocol can be fool proof against sub-optimal operations.
Masataka Ohta
