nanog mailing list archives

Re: Is Verizon core network broken? Can someone reach out to Verizon core network team so that they can look into why so many networks are missing?


From: S Umple <sumple () gmail com>
Date: Fri, 23 Jul 2021 09:53:55 -0400

Verizon Executive Relations team reached out to their network team and the
finding is that Tencent is not announcing the prefixes to them.
Result: Verizon is not going to pursue this.

On Wed, Jul 21, 2021 at 12:11 PM Stephane Bortzmeyer <bortzmeyer () nic fr>
wrote:

On Wed, Jul 21, 2021 at 11:35:35AM -0400,
 S Umple <sumple () gmail com> wrote
 a message of 61 lines which said:

<VZ INET router>#
      81.0.0.0/8 is variably subnetted, 2835 subnets, 14 masks
      121.51.0.0/16 <empty>
      182.254.0.0/16 is variably subnetted, 3 subnets, 2 masks


route-views.routeviews.org>
      81.0.0.0/8 is variably subnetted, 3247 subnets, 19 masks
      121.0.0.0/8 is variably subnetted, 2571 subnets, 18 masks
      182.254.0.0/16 is variably subnetted, 113 subnets, 5 masks

Anyone able to validate my findings, and/or take this issue to higher VZ
support?

Testing with the RIPE Atlas probes show that 121.51.0.13 (which is
pingable) is not reachable at all from AS 701. But it still has
reachability problems from other networks in the world, with many
timeouts (but the problem at 701 is more radical).

At least 121.51.0.0/16 and 121.51.0.0/23 seems to be seen in many
places.


Current thread: