Re: AW: /27 the new /24

[Baldur Norddahl <baldur.norddahl () gmail com>]

2 million routes will not be enough if we go full /27. This is not a
scalable solution. Something else is needed to provide multihoming for
small networks (LISP?).

Regards,

Baldur


On 3 October 2015 at 11:03, Youssef Bengelloun-Zahr <youssef () 720 fr> wrote:

> Hi,
>
> FYI, newer linecard models from BROCADE can hold 2 million routes.
> Probably others can do that now too.
>
> Disclaimer : I'm not working for them or defending them, just setting an
> information straight.
>
> My 2 cents.
>
>
>
> > Le 3 oct. 2015 à 10:33, Jürgen Jaritsch <jj () anexia at> a écrit :
> >
> > As mentioned before: even the new SUP2T from Cisco is limited to 1Mio
> routes ...
> > There are MANY other vendors with the same limitations: Juniper,
> Brocade, etc
> > And the solt equipment is not the 99USD trash from the super market at
> the corner ...
> > Jürgen Jaritsch
> > Head of Network & Infrastructure
> >
> > ANEXIA Internetdienstleistungs GmbH
> >
> > Telefon: +43-5-0556-300
> > Telefax: +43-5-0556-500
> >
> > E-Mail: jj () anexia at
> > Web: http://www.anexia.at
> >
> > Anschrift Hauptsitz Klagenfurt: Feldkirchnerstraße 140, 9020 Klagenfurt
> > Geschäftsführer: Alexander Windbichler
> > Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT
> U63216601
> > -----Original Message-----
> > From: Max Tulyev [maxtul () netassist ua]
> > Received: Samstag, 03 Okt. 2015, 9:11
> > To: nanog () nanog org [nanog () nanog org]
> > Subject: Re: AW: /27 the new /24
> >
> > Which routers? DIR-300 with OpenWRT/Quagga? :)
> >
> > I think all above-the-trash level routers supports >1M routes, isn't it?
> >
> > > On 02.10.15 17:45, Jürgen Jaritsch wrote:
> > > Hi,
> > >
> > > this would at least help to get rid of many old routing engines around
> the world :) ... or people would keep their "learn nothing smaller than
> /24" filters in place. Also an option - but not for companies who act as an
> IP transit provider.
> > > best regards
> > >
> > > Jürgen Jaritsch
> > > Head of Network & Infrastructure
> > >
> > > ANEXIA Internetdienstleistungs GmbH
> > >
> > > Telefon: +43-5-0556-300
> > > Telefax: +43-5-0556-500
> > >
> > > E-Mail: JJaritsch () anexia-it com
> > > Web: http://www.anexia-it.com
> > >
> > > Anschrift Hauptsitz Klagenfurt: Feldkirchnerstraße 140, 9020 Klagenfurt
> > > Geschäftsführer: Alexander Windbichler
> > > Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT
> U63216601
> > > -----Ursprüngliche Nachricht-----
> > > Von: NANOG [mailto:nanog-bounces () nanog org] Im Auftrag von Justin
> Wilson - MTIN
> > > Gesendet: Freitag, 02. Oktober 2015 16:32
> > > An: NANOG
> > > Betreff: /27 the new /24
> > >
> > > I was in a discussion the other day and several Tier2 providers were
> talking about the idea of adjusting their BGP filters to accept prefixes
> smaller than a /24.  A few were saying they thought about going down to as
> small as a /27.  This was mainly due to more networks coming online and not
> having even a /24 of IPv4 space.  The first argument is against this is the
> potential bloat the global routing table could have.  Many folks have
> worked hard for years to summarize and such. others were saying they would
> do a /26 or bigger.
> > > However, what do we do about the new networks which want to do BGP but
> only can get small allocations from someone (either a RIR or one of their
> upstreams)?
> > > Just throwing that out there. Seems like an interesting discussion.
> > >
> > >
> > > Justin Wilson
> > > j2sw () mtin net
> > >
> > > ---
> > > http://www.mtin.net Owner/CEO
> > > xISP Solutions- Consulting – Data Centers - Bandwidth
> > >
> > > http://www.midwest-ix.com  COO/Chairman
> > > Internet Exchange - Peering - Distributed Fabric