Ownership of Routers on Both Ends of Transnational Links

Tue Apr 16 14:58:39 UTC 2019

On Tue, Apr 16, 2019 at 09:13:30AM -0400, Ross Tajvar wrote:
> "company-ic" and "company-gw" are commonly used names for /30s used for
> interconnection to a customer or another carrier. Those routers are likely
> owned/managed by Telia/Verizon.
> 

I highly doubt VZ or Telia owns and provides a Big Expensive Router as CPE sitting on US landing
POP for a major international carrier.

More likely, thease routers are China Unicom's routers in their US POP, not managed by VZ/Telia.
The /30s in this case are unmanaged IP transit hand-offs, coming in as Nx10G or 100G.  When your
IP transit provider assigns the /30, your router looks like it belongs to your upstream, common
mistake when interpreting traceroutes[1].

[1]: see Page 22 on https://www.nanog.org/meetings/nanog47/presentations/Sunday/RAS_Traceroute_N47_Sun.pdf

James