depends on the site. in st. louis, we connect to their only router, direct peering, no a/b/ stuff, if you are in a colo that they have several access routers as well, then you will typically do the a/b. Dennis Burgess, Mikrotik Certified Trainer Author of "Learn RouterOS- Second Edition" Link Technologies, Inc -- Mikrotik & WISP Support Services Office: 314-735-0270 Website: http://www.linktechs.net - Skype: linktechs -- Create Wireless Coverage's with www.towercoverage.com - 900Mhz - LTE - 3G - 3.65 - TV Whitespace -----Original Message----- From: Tim Durack [mailto:tdurack@gmail.com] Sent: Wednesday, August 28, 2013 9:20 AM To: nanog@nanog.org Subject: Cogent multi-hop BGP I was under the impression Cogent no longer did the multi-hop BGP thing, but then I got a copy of their NA user guide, and saw the peer-a/peer-b configuration. Not a fan. Anyone know if this is still required for Cogent IP transit service? (on/off list is fine.) -- Tim:>