Cogent and Altice Contacts for Routing Issue

Fri Jun 11 18:58:00 UTC 2021

This issue now seems resolved. If anyone here was directly responsible 
for the resolution, thank you.

-Vinny

Vinny Abello via NANOG wrote on 6/11/2021 11:17 AM:
> Hello,
>
> Please excuse the noise. If there are any network engineers from 
> Cogent and Altice on the list, could you please email me directly. 
> This is regarding a specific Altice IPv4 aggregate in the NYC area 
> that Cogent in the NYC area is handing off to Zayo in San Jose for 
> some reason. It subsequently seemingly has a lot of packet loss coming 
> back to the NYC area through Zayo's network. It's affecting my remote 
> employees.
>
> I can provide traceroutes privately as not to clutter up the list.
>
> Bad Altice Aggregate in question: 67.84.0.0/14
>
> Good Altice aggregate routing properly: 68.196.0.0/14
>
> Thanks in advance.
>
> -Vinny