Re: verizon fios, northeast, routing issues?

[Christopher Morrow <morrowc.lists () gmail com>]

On Sat, Oct 9, 2021, 13:45 Miles Fidelman <mfidelman () meetinghouse net>
wrote:

> Any Verizon folks here?
>
>
>
> I've been having some rather weird network issues lately - just reading
> email via IMAP, from home.  Over a 1gig FIOS connection to a machine in
> a nearby Tierpoint data center that has LOTS of good connectivity.
>
> I just tried some traceroutes, and got some interesting results:
>
> These originate on a machine connected to a 1gig FIOS feed, and end at a
> machine, located in a Tierpoint datacenter, about 10 miles from here.
>
> traceroute to ntcorp.com (207.154.13.58), 64 hops max, 52 byte packets
>   1  * fios_quantum_gateway (192.168.1.1)  3.530 ms  2.822 ms
>   2  * * *
>   3  100.41.27.110 (100.41.27.110)  14.970 ms  5.323 ms  6.306 ms
>   4  0.csi1.bstnmafr-mse01-bb-su1.alter.net (140.222.10.32)  11.069 ms
> 8.477 ms  17.097 ms
>   5  * * *
>   6  0.ae1.br1.bos30.alter.net (140.222.236.253)  17.121 ms  19.027 ms
>      0.ae2.br1.bos30.alter.net (140.222.236.255)  19.795 ms
>   7  * * *
>   8  colo4-dalla.bear1.boston1.level3.net (4.53.61.86)  2205.648 ms
> 8.331 ms  13.161 ms
>   9  static-33-65-203-66.axsne.net (66.203.65.33)  16.951 ms  13.791 ms
>      static-145-65-203-66.axsne.net (66.203.65.145)  21.503 ms
> 10  server1.ntcorp.com (207.154.13.58)  17.872 ms  15.902 ms  14.415 ms
>
> Several things jump out:
>
> 1. alter.net is not a common path between here & there - usually a lower
> grade connection, when other backbones aren't working right


> Alternet is the domain used by legacy uunet equipment/ips, or was that
> domain "forever".


> 2. origin - alter.net - level.3 - endpoint is just bizarre, one would


> Why? "Br" is the role name used for sfp peer interconnect devices on
> uunet's network.


> think that the regional FIOS network has a direct connection to level.3
> (it also seems kind of odd that the packets are flowing from Acton MA,
> to Boston, and back out to Marlboro MA - there's an awful lot of fiber
> running along Rt. 495, and the networks are fairly dense around here)
>
> 3. The intermittent, high delays (factor of 10) jump out  (also, when
> running ping tests, there seem to be intermittent periods of long
> sequences of timeouts)
>
> All in all it's really mucking with both streaming services, and simply
> posting emails (SMTP timeouts).
>
> All of which leads me to wonder if there's something mucked up with
> Verizon's routing tables (or a particular network interface).
>
> Any insights (or fixes) to be had?
>
> Thanks,
>
> Miles Fidelman
>
>
>
> --
> In theory, there is no difference between theory and practice.
> In practice, there is.  .... Yogi Berra
>
> Theory is when you know everything but nothing works.
> Practice is when everything works but no one knows why.
> In our lab, theory and practice are combined:
> nothing works and no one knows why.  ... unknown