The links have since come back. This is the second major failure of TNS within 
6 months. No RFO yet, but I will certainly be on them for some detail. 

My Metaswitch support rep verified that (pardon my lack of using the correct 
terminology, I'm not that familiar with it) our SS7 links never actually went 
down, it just lost connectivity beyond that. Sorta like my BGP peer stayed up, 
but I lost the global routing table behind it. 



----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 



Midwest Internet Exchange 
http://www.midwest-ix.com 



From: "Mike Hammett" <[email protected]> 
To: "voiceops" <[email protected]> 
Sent: Wednesday, January 19, 2022 4:05:32 PM 
Subject: [VoiceOps] TNS SS7 Outage 

Does anyone have any information on the TNS SS7 outage going on now? Both of 
our A-links go to different facilities (Chicago and Ashburn) over different 
VPNs (which are up). 

TNS has acknowledged that it's a carrier issue. That they're investigating. 



----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 



Midwest Internet Exchange 
http://www.midwest-ix.com 


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