[VoiceOps] TNS SS7 Outage

[Shawn L]

That's never a good thing.  We were isolated for ~ 24 hours a couple of
years ago and that's something I never want to repeat.

Funny story -- AT&T even called us and said "do you guys know that both
your A-Kinks are down"?  We replied with the AT&T ticket numbers on the
circuits that were down and the SS7 folks said "yeah, we're not allowed to
talk to those guys, hopefully they fix it soon".   I don't think that
escallate button on the ticket does what you think it does....

It was also a complete pain to try to get them to change routing for us.
We had a neighboring company offer to give us a temporary link to their
switch -- If memory serves that's a F-Link, but AT&T could never get the
routing right.

Unfortunately, changing SS7 providers wasn't an option.  One of the other
SS7 providers (to remain nameless) could never actually get their circuits
sent to the correct place.

This is making me think we should look at getting 2 more A-Links, so we
have 4 again......


On Wed, Jan 19, 2022 at 5:20 PM Mike Hammett <voiceops at ics-il.net> wrote:

> 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" <voiceops at ics-il.net>
> *To: *"voiceops" <voiceops at voiceops.org>
> *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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