[175845] in North American Network Operators' Group
RE: Default routes on BGP routers with full feeds
daemon@ATHENA.MIT.EDU (Naslund, Steve)
Tue Nov 4 14:24:40 2014
X-Original-To: nanog@nanog.org
From: "Naslund, Steve" <SNaslund@medline.com>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Tue, 4 Nov 2014 19:24:31 +0000
In-Reply-To: <20141104174737.D19682D4308@mail.nanog.org>
Errors-To: nanog-bounces@nanog.org
I can tell you that I do not do that. Typically if my BGP connectivity to =
a carrier fails I would prefer we don't route anything their way until we g=
et that resolved because it might indicate a circuit that is up but unable =
to pass traffic (very common with carrier Ethernet especially). It does no=
t guarantee anything but the BGP session is at least showing me that the la=
st mile connectivity is good. In our MPLS VPN network we use BGP passwords=
that provide a bit of protection in case the carrier dumps one of our circ=
uits into the wrong VRF (it does happen) and loss of the BGP session helps =
ensure that I don't route traffic into a MPLS VPN that is not ours.
Steven Naslund
Chicago IL
-----Original Message-----
From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of Berry Mobley
Sent: Tuesday, November 04, 2014 11:47 AM
To: nanog@nanog.org
Subject: Default routes on BGP routers with full feeds
I'm wondering how many of you who are multihomed also add default routes po=
inting to your providers from whom you are receiving full feeds.
If so, why? If not, why not?
Thanks,
Berry
