[175847] in North American Network Operators' Group
Re: Default routes on BGP routers with full feeds
daemon@ATHENA.MIT.EDU (Jared Mauch)
Tue Nov 4 16:32:00 2014
X-Original-To: nanog@nanog.org
From: Jared Mauch <jared@puck.nether.net>
In-Reply-To: <D7092CF606B8964193F248C92106B7811372B4AC@zionex01.ZION.local>
Date: Tue, 4 Nov 2014 16:31:50 -0500
To: Mike Walter <mwalter@3z.net>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
> On Nov 4, 2014, at 1:25 PM, Mike Walter <mwalter@3z.net> wrote:
>=20
> I have 5 providers and we get the default from all of them and full =
routing tables.
>=20
> I have seen cases where if there is no default route, the traffic =
didn't know where to go, even with full routes from all my providers. =20=
We put some efforts into our default origination service a few years =
back to prevent default from being announced if the pop became isolated =
for some catastrophic reason. I recall once when someone upgraded the =
route processor of two different routers in a pop at the same time =
resulting in isolation until the configs were placed on the new RE for =
other devices in the site. Things happen and preparing for them is the =
first step to survive.
- Jared
