Suggestions:
Let's use the terms "forwarding plane" (instead of control plane) and
"routing plane".
Both planes as well as their close relationship have to be
considered.
Heiner
In einer eMail vom 22.05.2007 23:49:19 Westeuropäische Normalzeit schreibt
nwnetworks@dial.pipex.com:
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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