nanog mailing list archives

Re: Centurylink having a bad morning?


From: Baldur Norddahl <baldur.norddahl () gmail com>
Date: Sun, 30 Aug 2020 19:08:54 +0200

An outage is what it is. I am not worried about outages. We have multiple
transits to deal with that.

It is the keep announcing prefixes after withdrawal from peers and
customers that is the huge problem here. That is killing all the effort and
money I put into having redundancy. It is sabotage of my network after I
cut the ties. I do not want to be a customer at an outlet who has a system
that will do that. Luckily we do not currently have a contract and now they
will have to convince me it is safe for me to make a contract with them. If
that is impossible I guess I won't be getting a contract with them.

But I disagree in that it would be impossible. They need to make a good
report telling exactly what went wrong and how they changed the design, so
something like this can not happen again. The basic design of BGP is such
that this should not happen easily if at all. They did something unwise.
Did they make a route reflector based on a database or something?

Regards,

Baldur

On Sun, Aug 30, 2020 at 5:13 PM Mike Bolitho <mikebolitho () gmail com> wrote:

Exactly. And asking that they somehow prove this won't happen again is
impossible.

- Mike Bolitho

On Sun, Aug 30, 2020, 8:10 AM Drew Weaver <drew.weaver () thenap com> wrote:

I’m not defending them but I am sure it isn’t intentional.



*From:* NANOG <nanog-bounces+drew.weaver=thenap.com () nanog org> *On
Behalf Of *Baldur Norddahl
*Sent:* Sunday, August 30, 2020 9:28 AM
*To:* nanog () nanog org
*Subject:* Re: Centurylink having a bad morning?



How is that acceptable behaviour? I shall remember never to make a
contract with these guys until they can prove that they won't advertise my
prefixes after I pull them. Under any circumstances.



søn. 30. aug. 2020 15.14 skrev Joseph Jenkins <joe () breathe-underwater com
:

Finally got through on their support line and spoke to level1. The only
thing the tech could say was it was an issue with BGP route reflectors and
it started about 3am(pacific). They were still trying to isolate the issue.
I've tried failing over my circuits and no go, the traffic just dies as L3
won't stop advertising my routes.



On Sun, Aug 30, 2020 at 5:21 AM Drew Weaver via NANOG <nanog () nanog org>
wrote:

Hello,



Woke up this morning to a bunch of reports of issues with connectivity
had to shut down some Level3/CTL connections to get it to return to normal.



As of right now their support portal won’t load:
https://www.centurylink.com/business/login/



Just wondering what others are seeing.





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