I’m seeing ~3% packet loss to outlook.office365.com, looks like some ICMPs are getting dropped along the way. I’m directly peered with MS through Boston-IX @ 1 Summer St 8. bostonix.as8075.msn.net 2.2% 89 4.6 4.8 4.4 17.5 1.4 9. ae11-0.nyc-96cbe-1a.ntwk.msn.net 1.1% 89 11.4 9.8 9.3 30.3 2.3 10. be-73-0.ibr02.nyc04.ntwk.msn.net 3.4% 89 21.1 21.1 20.1 22.3 0.4 11. be-4-0.ibr02.was05.ntwk.msn.net 5.6% 89 20.0 21.1 19.9 22.3 0.3 12. be-3-0.ibr02.bn1.ntwk.msn.net 3.4% 89 21.0 21.1 20.0 22.4 0.4 13. 104.44.5.74 3.4% 89 21.9 21.0 20.0 22.2 0.2 14. ae73-0.bn6-96cbe-1c.ntwk.msn.net 7.9% 89 19.5 19.9 19.4 29.4 1.4 15. ??? 16. ??? 17. ??? 18. ??? 19. 40.97.155.18 2.2% 89 19.6 19.7 19.4 23.4 0.4 -Matt -- Matthew Crocker Crocker Communications, Inc. President On 4/20/17, 10:06 AM, "Outages on behalf of James Green via Outages" <outages-bounces@outages.org on behalf of outages@outages.org> wrote: We are seeing around 35% packet loss to outlook.office365.com across both Cogent and Towardex, testing from Cox shows no packet loss. Anyone else noticing any issues? MTR shows consistent packet loss after the Cogent to Microsoft handoff and the Towardex to Microsoft handoff. Cogent 38.122.110.50 be-72-0.ibr02.nyc04.ntwk.msn.net Towardex microsoft-twdx-10g.bsn01.twdx.net ae7-0.ch1-96c-1a.ntwk.msn.net