nanog mailing list archives
Re: BGP Multihoming 2 providers full or partial?
From: "Patrick W. Gilmore" <patrick () ianai net>
Date: Mon, 1 Jun 2015 17:51:22 -0400
On Jun 01, 2015, at 17:46 , William Herrin <bill () herrin us> wrote:
On Mon, Jun 1, 2015 at 5:13 PM, Baldur Norddahl <baldur.norddahl () gmail com> wrote:This is only a problem if you use so called tier 1 transit providers. The smaller fish in the pond have multiple transits themselves and will there by always have an alternative route available.Hi Baldur, Cogent is not a tier 1 (not a "transit-free") provider last I heard. Maybe that's changed, but they weren't back when they had the week-long peering dispute with Sprint.
Cogent has no transit. Hasn’t for years. During the peering outage, the only “transit” they had was to a single SFI network. I make no comments about Cogent’s reliability or peering or etc. — TTFN, patrick
Their business plan included preventing their routes from reaching Sprint via paid transit. If you were a customer of either carrier that week and you weren't multihomed with full routes, you were not a happy camper. "Always" is such a strong. Yes, you're at higher risk if all your upstreams are "transit-free" but using only backbone providers who have paid upstream transit in their mix is no panacea. Regards, Bill Herrin -- William Herrin ................ herrin () dirtside com bill () herrin us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
Current thread:
- Re: BGP Multihoming 2 providers full or partial?, (continued)
- Re: BGP Multihoming 2 providers full or partial? Blake Hudson (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Baldur Norddahl (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Maqbool Hashim (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Blake Hudson (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Jeremy Malli (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? William Herrin (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Blake Hudson (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? William Herrin (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Baldur Norddahl (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? William Herrin (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Patrick W. Gilmore (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Baldur Norddahl (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Blake Hudson (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Mike Hammett (Jun 01)
- Re: BGP Multihoming 2 providers full or partial? Mike Hammett (Jun 02)