Routing issues to AWS environment.

Chuck Church chuckchurch at
Thu May 9 10:34:21 UTC 2019

Are you sure the problem isn’t NTT?  My buddy’s WISP peers with Spirit and had a boatload of problems with random packet loss affecting initially just SIP and RTP (both UDP).  Spirit was blaming NTT.  Problems went away when Spirit stopped peering with NTT yesterday.  Path is through Telia now to their main SIP trunk provider.




From: NANOG <nanog-bounces at> On Behalf Of Curt Rice
Sent: Wednesday, May 08, 2019 10:56 AM
To: nanog at
Subject: Routing issues to AWS environment.


Hi are there any AWS engineers out there? We are seeing routing problems between NTT and AWS in Ashburn, Va and would like to find out which side is having the problem.




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