Re: AS7018 upstream loss via 32.130.88.22 (SF Bay Ar ea) — per-flow, unidirectional

Christopher Morrow via NANOG <[email protected]>
Newsgroups gmane.org.operators.nanog
Message-ID <CAL9jLaaT9HjLstQjpk6K2Tj-Pofm_SGj5iX=-y7mfjVNgUUbQw@mail.gmail.com>
On Tue, Aug 25, 2026 at 1:13 PM BEASLEY, JOSH via NANOG
<[email protected]> wrote:
>
> Hop 9 is the last hop on AS7018. The hop you were concerned with is no longer in the path and it would have been one of the first few hops in your trace if it was there.
>
> Josh
>
> From: Al via NANOG <[email protected]>
> Sent: Tuesday, August 25, 2026 11:00 AM
> To: mikecika--- via NANOG <[email protected]>
> Cc: Al <[email protected]>
> Subject: Re: AS7018 upstream loss via 32.130.88.22 (SF Bay Area) — per-flow, unidirectional
>
> Maybe Josh fixed it, but I'm not seeing packet loss here. Odd that traceroutes stop at the 32. 130. . . Because of that I cannot see if I am transiting 32. 130. 88. 22 → 32. 130. 20. 157 or not. al@ post: /z/dns$ traceroute ibm. com traceroute to ibm. com
>
>
> Maybe Josh fixed it, but I'm not seeing packet loss here.
>
> Odd that traceroutes stop at the 32.130...
>
> Because of that I cannot see if I am transiting 32.130.88.22 →
>
> 32.130.20.157 or not.

I'd guess that (since traceroutes to this space from outside 7018 seem
to just die a the 7018 border) this is CGNat space for ATT Fiber
customers...
I suspect  this all has to be fixed inside the 7018 cloud, and there's
not much 'nanog' peoples can generally do for this problem, eh? :)
(so calling the att support folks, booting your win98 computer and
rebooting it with them on the phone - pstn -  THEN getting them perf /
traceroute data is required)
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