[184435] in North American Network Operators' Group
Re: AW: /27 the new /24
daemon@ATHENA.MIT.EDU (Youssef Bengelloun-Zahr)
Sat Oct 3 05:03:40 2015
X-Original-To: nanog@nanog.org
From: Youssef Bengelloun-Zahr <youssef@720.fr>
In-Reply-To: <f7a1653f45954d619691ce859266d51c@anx-i-dag02.anx.local>
Date: Sat, 3 Oct 2015 11:03:27 +0200
To: =?utf-8?Q?J=C3=BCrgen_Jaritsch?= <jj@anexia.at>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Hi,
FYI, newer linecard models from BROCADE can hold 2 million routes. Probably o=
thers can do that now too.
Disclaimer : I'm not working for them or defending them, just setting an inf=
ormation straight.
My 2 cents.
> Le 3 oct. 2015 =C3=A0 10:33, J=C3=BCrgen Jaritsch <jj@anexia.at> a =C3=A9c=
rit :
>=20
> As mentioned before: even the new SUP2T from Cisco is limited to 1Mio rout=
es ...
>=20
> There are MANY other vendors with the same limitations: Juniper, Brocade, e=
tc
>=20
> And the solt equipment is not the 99USD trash from the super market at the=
corner ...
>=20
>=20
> J=C3=BCrgen Jaritsch
> Head of Network & Infrastructure
>=20
> ANEXIA Internetdienstleistungs GmbH
>=20
> Telefon: +43-5-0556-300
> Telefax: +43-5-0556-500
>=20
> E-Mail: jj@anexia.at
> Web: http://www.anexia.at
>=20
> Anschrift Hauptsitz Klagenfurt: Feldkirchnerstra=C3=9Fe 140, 9020 Klagenfu=
rt
> Gesch=C3=A4ftsf=C3=BChrer: Alexander Windbichler
> Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216=
601
>=20
>=20
> -----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
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> Which routers? DIR-300 with OpenWRT/Quagga? :)
>=20
> I think all above-the-trash level routers supports >1M routes, isn't it?
>=20
>> On 02.10.15 17:45, J=C3=BCrgen Jaritsch wrote:
>> Hi,
>>=20
>> this would at least help to get rid of many old routing engines around th=
e world :) ... or people would keep their "learn nothing smaller than /24" f=
ilters in place. Also an option - but not for companies who act as an IP tra=
nsit provider.
>>=20
>>=20
>> best regards
>>=20
>> J=C3=BCrgen Jaritsch
>> Head of Network & Infrastructure
>>=20
>> ANEXIA Internetdienstleistungs GmbH
>>=20
>> Telefon: +43-5-0556-300
>> Telefax: +43-5-0556-500
>>=20
>> E-Mail: JJaritsch@anexia-it.com
>> Web: http://www.anexia-it.com
>>=20
>> Anschrift Hauptsitz Klagenfurt: Feldkirchnerstra=C3=9Fe 140, 9020 Klagenf=
urt
>> Gesch=C3=A4ftsf=C3=BChrer: Alexander Windbichler
>> Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U6321=
6601
>>=20
>>=20
>> -----Urspr=C3=BCngliche 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
>>=20
>> I was in a discussion the other day and several Tier2 providers were talk=
ing 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 e=
ven a /24 of IPv4 space. The first argument is against this is the potentia=
l bloat the global routing table could have. Many folks have worked hard fo=
r years to summarize and such. others were saying they would do a /26 or big=
ger.
>>=20
>> However, what do we do about the new networks which want to do BGP but on=
ly can get small allocations from someone (either a RIR or one of their upst=
reams)?
>>=20
>> Just throwing that out there. Seems like an interesting discussion.
>>=20
>>=20
>> Justin Wilson
>> j2sw@mtin.net
>>=20
>> ---
>> http://www.mtin.net Owner/CEO
>> xISP Solutions- Consulting =E2=80=93 Data Centers - Bandwidth
>>=20
>> http://www.midwest-ix.com COO/Chairman
>> Internet Exchange - Peering - Distributed Fabric
>=20
