We can and should unwind this setup now David. Our transit bandwidth situation has improved greatly since we set that all up and we don't need any help. When I get into the office later today I will add a couple prepends then turn down that BGP session. We can chat offline about it if needed otherwise, David. Thanks. -----Original Message----- From: Jeremy Lumby [jlumby@MNVOIP.COM] Received: Thursday, 21 Mar 2013, 10:50pm To: MICE-DISCUSS@LISTS.IPHOUSE.NET [MICE-DISCUSS@LISTS.IPHOUSE.NET] Subject: Re: [MICE-DISCUSS] Interesting route to Akamai I realize that the return traffic might be taking a different route, however one of the MICE members still needs to be transiting it to Charter. I guess it may just be an inevitable side effect of providing the internet connection to fill the cluster. -----Original Message----- From: MICE Discuss [mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET] On Behalf Of David Farmer Sent: Thursday, March 21, 2013 10:30 PM To: MICE-DISCUSS@LISTS.IPHOUSE.NET Subject: Re: [MICE-DISCUSS] Interesting route to Akamai I can assure you the path from Akamai to Charter is not following that path, this is an asymmetrical path. We are helping USInternet provide cache fill for Akamai by announcing the prefix through commercial peering relationships we have. Along with cache fill comes some TCP Ack traffic depending on some people's routing policy. -- =============================================== David Farmer Email:farmer@umn.edu Networking & Telecommunication Services Office of Information Technology University of Minnesota 2218 University Ave SE Phone: 612-626-0815 Minneapolis, MN 55414-3029 Cell: 612-812-9952 =============================================== On Mar 21, 2013, at 21:11, Jeremy Lumby <jlumby@MNVOIP.COM> wrote:

I was a little interested in seeing which Akamai cluster would feed my Charter home internet connection if I decided to stream NCAA basketball. A quick packet capture revealed a very familiar IP address. However when I tracerouted to it, I was surprised to see it go through the University transit MICE, and then loop back on USinternet to get to the MICE Akamai cluster.

2 1 - 66.191.136.9 3 2 - 10.149.234.1 4 3 1 96.34.25.200 dtr01rsmtmn-tge-0-1-1-2.rsmt.mn.charter.com 5 3 1 96.34.27.182 crr02stcdmn-tge-0-4-0-1.stcd.mn.charter.com 6 3 1 96.34.2.136 bbr01stcdmn-bue-3.stcd.mn.charter.com 7 3 1 96.34.1.149 bbr02chcgil-bue-1.chcg.il.charter.com 8 3 1 96.34.3.11 prr01chcgil-bue-4.chcg.il.charter.com 9 4 2 64.57.20.49 ge-9-0-4.0.chic0.tr-cps.internet2.edu 10 4 - 64.57.21.122 11 5 3 206.108.255.126 as57-2.micemn.net 12 5 4 206.108.255.19 g1-43.usi-cr03-mpls.usinternet.com 13 6 4 216.17.48.25 v115.usi-cr02-mpls.usinternet.com 14 7 - 216.17.31.194 15 8 5 23.15.4.8 a23-15-4-8.deploy.akamaitechnologies.com

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