[163755] in North American Network Operators' Group
RE: Multihop eBGP peering or VPN based eBGP peering
daemon@ATHENA.MIT.EDU (John van Oppen)
Mon Jun 17 00:30:43 2013
From: John van Oppen <jvanoppen@spectrumnet.us>
To: 'Michael McConnell' <michael@winkstreaming.com>, "nanog@nanog.org"
<nanog@nanog.org>
Date: Mon, 17 Jun 2013 04:30:11 +0000
In-Reply-To: <C9860D92-ECFC-46E1-9952-4A6D0203598F@winkstreaming.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Perhaps I am missing something from your advantage list, but why would you =
want to exchange routing information with a network to which you don't have=
a connection due to a local failure? I think you are attempting to abst=
ract routing from the underlying physical infrastructure a bit too much. =
If the power is out in the carrier pop to which you are connected, they don=
't have a way to give you traffic so why would a multi-hop session help. =
=20
BGP being down is rarely something that happens on its own, it is typically=
due to something far more physical (router failure, pop outage, circuit ou=
tage, etc). =20
John=20
-----Original Message-----
From: Michael McConnell [mailto:michael@winkstreaming.com]=20
Sent: Sunday, June 16, 2013 5:40 PM
To: nanog@nanog.org
Subject: Multihop eBGP peering or VPN based eBGP peering
Hello all,
Any idea why more companies don't offer eBGP peering / multi hop peering? I=
ts very common for providers to offer single or double hop peering, so why =
not 5 or 10 hops? In many cases people find it logical to perform single or=
double hop peering, why is peering any greater always frowned upon. I unde=
rstand the logic that you can't control the path beyond a point, however I =
still see numerous advantages.=20
One obvious advantages one is, imagine you east coast data centre and you h=
ad a eBGP peering session with a west coast router, you'd be able to contro=
l ingress via the west coast. (aka routing around an region outage that is =
effecting ingress) For example during the last hurricane around New Jersey,=
numerous tier 1's were down towards the atlantic and every peer for the at=
lantic was effected. One could have just made the ingress via the west coas=
t the logical route.=20
Thoughts?
Mike
--
Michael McConnell
WINK Streaming;
email: michael@winkstreaming.com
phone: +1 312 281-5433 x 7400
cell: +506 8706-2389
skype: wink-michael
web: http://winkstreaming.com
