<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #000000'>Do people not know how to use local pref and MED to prefer PNI over route server?<br><br><div><span name="x"></span><br><br>-----<br>Mike Hammett<br>Intelligent Computing Solutions<br>http://www.ics-il.com<br><br>Midwest-IX<br>http://www.midwest-ix.com<span name="x"></span><br></div><br><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Mark Tinka" <mark.tinka@seacom.mu><br><b>To: </b>nanog@nanog.org<br><b>Sent: </b>Thursday, January 31, 2019 6:20:42 AM<br><b>Subject: </b>Re: Calling LinkedIn, Amazon and Akamai @ DE-CIX NY<br><br><br><br>On 31/Jan/19 12:04, Julien Goodwin wrote:<br><br>> Even in exchanges that strongly encourage their use route collectors<br>> were much less connected to than route servers, and few exchanges had<br>> them in the first place.<br><br>We, for example, connect to RS's more selectively.<br><br>We are more liberal about RC's since they do not have an impact on our<br>forwarding paradigm, and it helps the exchange point know what's<br>happening across their fabric. But yes, I do imagine that interest level<br>of connecting to either an RS or RC could vary, particularly the larger<br>of a network you are.<br><br>><br>> Part of the problem with advertising on route servers is many clients,<br>> including networks that should know better often treat those routes as a<br>> higher priority than is sensible, in some cases equal or higher than a<br>> PNI link in the same city.<br><br>Well, there are a number of peers that do not have a linear peering<br>relationship for all routes available at an exchange point, i.e., they<br>don't see those routes both via the RS and bi-lateral sessions. For many<br>networks, RS is the true source and bi-lateral sessions are not even<br>considered.<br><br>We may not always peer with an RS, but we will always have bi-lateral<br>sessions... even when we have sessions to the RS.<br><br>Mark.<br></div><br></div></body></html>