[100196] in North American Network Operators' Group
Re: Some thoughts on 240/4
daemon@ATHENA.MIT.EDU (Eliot Lear)
Fri Oct 19 13:14:40 2007
Date: Fri, 19 Oct 2007 19:12:39 +0200
From: Eliot Lear <lear@cisco.com>
To: Valdis.Kletnieks@vt.edu
CC: Leo Bicknell <bicknell@ufp.org>, nanog@nanog.org
In-Reply-To: <2802.1192811084@turing-police.cc.vt.edu>
Errors-To: owner-nanog@merit.edu
Valdis,
> More code, more regression testing, same number of programmers. Do the math.
>
> Take it as a given that it *will* slip the schedule some amount, because
> the resources for a 240/4 feature will have to come from somewhere. So
> how much slippage are you willing to accept?
>
Let's not go too far here. As Vince pointed out, the work required is
fairly minimal. It's not nothing. Particularly in IOS we do a parser
check for Bogons, and this is done in other platforms as well. But
still- the code involved is typically removing an entry from one or
several tables. Regression will vary by platform, but that usually
isn't done on a feature by feature case, and so the costs are not linear
as you suggest.
Eliot
