[Outages-discussion] [outages] [EXTERNAL] Ping to Google 8.8.8.8

[Chapman, Brad (NBCUniversal)]

There’s always a relevant XKCD ...

https://xkcd.com/1361/

[Google Announcement]

alt text: “the less popular 8.8.4.4 is slated for discontinuation.”


From: Outages <outages-bounces at outages.org> on behalf of Mike Bolitho via Outages <outages at outages.org>
Date: Tuesday, February 8, 2022 at 12:58 PM
To: James Host <jhost at vultr.com>
Cc: outages at outages.org <outages at outages.org>
Subject: Re: [outages] [EXTERNAL] Ping to Google 8.8.8.8
Yes, it has been this way for at least a decade. DNS are not polling servers.
- Mike Bolitho

On Tue, Feb 8, 2022, 1:29 PM James Host via Outages <outages at outages.org<mailto:outages at outages.org>> wrote:
Is it that atypical for these public-facing services to drop ICMP when they get hot? I'd not consider it an indicator of service down unless you're getting SRVFAILs

James Host
Architect - CDN Platform
E: jhost at vultr.com<mailto:jhost at vultr.com>


On Tue, Feb 8, 2022 at 12:01 PM Christopher Conley via Outages <outages at outages.org<mailto:outages at outages.org>> wrote:
This happens occasionally on 8.8.8.8 and 8.8.4.4. We used to use these IPs as Internet reachability tests for determining failover to backup circuits and moved away from it after the first occurrence of this happening.

--
Christopher Conley
Systems Administrator |  Fors Marsh Group
1010 N. Glebe Rd, Suite 510
Arlington, VA 22201

From: Outages <outages-bounces at outages.org<mailto:outages-bounces at outages.org>> On Behalf Of Justin Krejci via Outages
Sent: Tuesday, February 8, 2022 2:34 PM
To: outages at outages.org<mailto:outages at outages.org>
Subject: [EXTERNAL] [outages] Ping to Google 8.8.8.8


Seeing some hosts and not others get no reply to ICMP pings from the Minneapolis, MN area. I checked using HE's looking glass, 1 of their 2 Minneapolis routers gets no replies. Since many use and assume 8.8.8.8 is invincible, this has now started setting off monitoring alerts. DNS queries so far seem unaffected.
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