Sue

Probably best to do it yourself.  I did offer a reprise of previous IETF
work in

http://www.ietf.org/mail-archive/web/netmod/current/msg07022.html

but it did not gain traction in NETMOD, so I would not expect it to
here.

Tom Petch

----- Original Message -----
From: "Susan Hares" <[email protected]>
To: "'t.petch'" <[email protected]>; "'Ladislav Lhotka'"
<[email protected]>
Cc: "'Jeffrey Haas'" <[email protected]>; <[email protected]>; "'Edward
Crabbe'" <[email protected]>
Sent: Tuesday, June 17, 2014 4:23 PM
Subject: RE: [i2rs] draft-white-i2rs-use-case-05.txt has been posted


> Lada and Tom:
>
> You've convinced me that I should define the term RIB and FIB in the
> draft-white-i2rs-use-case-05.  Would you like to suggest any text?
> Otherwise give me a day or so to come up with text for this draft.
>
> Sue
>
> -----Original Message-----
> From: i2rs [mailto:[email protected]] On Behalf Of t.petch
> Sent: Tuesday, June 17, 2014 4:55 AM
> To: Ladislav Lhotka
> Cc: Jeffrey Haas; [email protected]; Edward Crabbe; Susan Hares
> Subject: Re: [i2rs] draft-white-i2rs-use-case-05.txt has been posted
>
> ----- Original Message -----
> From: "Ladislav Lhotka" <[email protected]>
> To: "t.petch" <[email protected]>
> Sent: Friday, June 13, 2014 1:11 PM
> >
> > On 13 Jun 2014, at 13:49, t.petch <[email protected]> wrote:
> > > ---- Original Message -----
> > > From: "Susan Hares" <[email protected]>
>  > Sent: Thursday, June 12, 2014 11:26 PM
> > >
> > >> I've posted a version of white-i2rs-use-case-05 with the
> > > recommendations at the front of the document.  I look forward to
> > > additional comments.  I appreciate Tom Petch and Dean B.'s
comments
> on
> > > these drafts.
> > >
> > > Sue
> > >
> > > I am flattered; I am not sure that I deserve such mention.
> > >
> > > I am more interested in the use cases part of the I-D, seeing
> > > requirements and info-model as the next stage when use cases are
> agreed,
> > > and they look fine (perhaps /may Data Centers/many Data Centers/).
> > >
> > > I note the reference to ISIS which I find significant.  My
> experience is
> > > more of OSPF but appreciate that that is rare with Operators.
> However,
> > > both are Link State and so very different to BGP which makes me
> think
> > > about the use of RIB.  The NETMOD routing-cfg started with RIBs,
> dropped
> > > them and then reinstated them (after consulting with I2RS),
whereas
> for
> > > me, RIBs are BGP (as defined in RFC4271) and OSPF has an
equivalent
> in
> > > LSDB, which is very different in detail (as much research as Lada
> has
> > > done across three differing platforms, I am not certain that the
> NETMOD
> > > has sufficient routing expertise to get this perfect:-(.
> > >
> > > I think you need a definition of RIB, perhaps by a Normative
> reference
> > > to rib-info-model, but for me that leaves unclear the relationship
> > > between routing instance, routing protocol and RIB, at least when
> you
> > > get into requirements.
> >
> > Sounds like recurring deja vu:
> >
> > - http://www.ietf.org/mail-archive/web/i2rs/current/msg00554.html
> >
> > - http://www.ietf.org/mail-archive/web/i2rs/current/msg00586.html
>
>
> or, once again with feeling,
>
> http://www.ietf.org/mail-archive/web/netmod/current/msg07022.html
>
> Tom Petch
>
> >
> > Lada
> >
> > >
> > > Likewise, this I-D is cast in terms of a table identifier and a
> route
> > > process identifier, whereas routing-cfg has  routing-instance
[name]
> > > with router-id, ribs, interfaces, routing-protocols etc  I have a
> sense
> > > of two divergent models of what a router is for all the
discussions.
> > >
> > > REQ1 last sentence should probably include removing process
> > >
> > > REQ2 I think is about source-based routing but it does not quite
say
> > > that, rather reading as if source or destination routing were
> equally
> > > valid options
> > >
> > > REQ3 again the wording seems odd - I think you mean that traffic
> with a
> > > given destination (or source?) prefix should be discarded, but
that
> is
> > > not what it says
> > >
> > > REQ4 I find vague, as I do anything with the word policy in it:-(
> > > Something concrete (communities, MED, ...) would help
> > >
> > > REQ6 makes me wonder what is a RIB when it is not local
> > >
> > > REQ8 seems all embracing (SNMP, DHCP, NTP ...?:-) - I would like
> > > something more concrete.  Again, I wonder if it is technically
> possible
> > > to present information in a consistent manner given the difference
> in
> > > underlying concepts of protocols.
> > >
> > > REQ9 - again all embracing and as such, probably impossible, at
> least as
> > > written.  Limiting it just to BGP and a link-state protocol, again
> that
> > > seems challenging.
> > >
> > > REQ10 - policies again, and it is unclear who is doing the time
> > > management.  Some configuration protocols do have timer-based
> > > facilities, but not NETCONF; do you mean here that I2RS must have
> > > functionality based on timers (e.g. between 08:00 and 17:00 EDT,
> route
> > > this via Europe and Japan?)
> > >
> > > Tom Petch
> > >
> > >>
> > >> URL:
> > >
http://www.ietf.org/internet-drafts/draft-white-i2rs-use-case-05.txt
> > >>
> > >> Sue Hares
> > >>
> > Ladislav Lhotka, CZ.NIC Labs
> > PGP Key ID: E74E8C0C
> >
> >
> >
> >
>
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>

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