Re: [RRG] Precision of the goals?

["Tom Petch" <nwnetworks@dial.pipex.com>]

I actually rather liked the use of routing plane.  The trouble with control
plane is that in work such as ccamp (close to the hearts of many operators), it
is mostly about signalling, not routing, and may be taken to include such
protocols as icmp, and is used in contrast to against management and user/data
planes..  I see no such baggage with routing plane.  My own approach is to
explain what I mean by control plane when I first use it because I do not see it
as well-defined.

Tom Petch


----- Original Message -----
From: "Tony Li" <tli@cisco.com>
To: "Brian E Carpenter" <brc@zurich.ibm.com>
Cc: "Lixia Zhang" <lixia@CS.UCLA.EDU>; "rrg" <rrg@psg.com>
Sent: Saturday, May 19, 2007 12:21 AM
Subject: Re: [RRG] Precision of the goals?


>
> On May 18, 2007, at 7:29 AM, Brian E Carpenter wrote:
>
> >> So What about adding the following quantifier to the existing
> >> scalability goal:
> >>    the first required goal is to provide significant improvement
> >>    to the scalability of the routing plane; it is highly desirable
> >>    to make the routing plane scale independently from the Internet
> >>    user population growth.
> >
> > Yes, I think that is a good compromise between completely qualitative
> > goals and over-specification; it offers some sort of measuring
> > stick.
>
>
> Thanks Brian.
>
> I've received a comment suggesting that "routing plane" is somewhat
> informal and less precise than the commonly accepted "control plane",
> so I've shifted to that terminology.  Also, we've defined the term
> "strongly desired" for expressing our priorities, so I've used that
> instead.  After some minor wordsmithing, the resulting text then reads:
>
>   ... Carrying this large amount of state in the
>   control plane is expensive and places undue cost burdens on network
>   participants that do not necessarily get value from the increases in
>   the routing table size.  Thus, the first required goal is to provide
>   significant improvement to the scalability of the control plane.
>   It is strongly desired to make the control plane scale
>   independently from the growth of the Internet user population.
>
> Is everyone ok with that?
>
> Tony
>
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