[179150] in North American Network Operators' Group
Re: BGP offloading (fixing legacy router BGP scalability issues)
daemon@ATHENA.MIT.EDU (Colin Johnston)
Thu Apr 2 03:37:02 2015
X-Original-To: nanog@nanog.org
From: Colin Johnston <colinj@gt86car.org.uk>
In-Reply-To: <551CE8BE.1010304@seacom.mu>
Date: Thu, 2 Apr 2015 08:35:48 +0100
To: Mark Tinka <mark.tinka@seacom.mu>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
or ignore/block russia and north korea and china network blocks
takes away 5% of network ranges for memory headroom, especially the =
large number of smaller china blocks.
Some may say this is harsh but is the network contacts refuse to =
co-operate with abuse and 100% of the traffic is bad then why not
Colin
> On 2 Apr 2015, at 07:59, Mark Tinka <mark.tinka@seacom.mu> wrote:
>=20
>=20
>=20
> On 1/Apr/15 19:01, Frederik Kriewitz wrote:
>>=20
>> We're wondering if anyone has experience with such a setup?
>=20
> Cisco have a feature called BGP-SD (BGP Selective Download).
>=20
> With BGP-SD, you can hold millions of entries in RAM, but decide what
> gets downloaded into the FIB. By doing this, you can still export a =
full
> BGP table to customers directly connected to your 6500, and only have =
a
> 0/0 + ::/0 (and some more customer routes) in the FIB to do forwarding
> to a bigger box.
>=20
> BGP-SD started shipping in IOS XE, but I now understand that the =
feature
> is on anything running IOS 15.
>=20
> This would be my recommendation.
>=20
> Mark.
