[Outages-discussion] [outages] Comcast/Xfinity outage

[jrk1231-outml at nym.hush.com]

I agree that it has become next to impossible to get carriers to
commit to physical routing diversity. I always used to recommend that
clients have their SLA written such that the simultaneous failure of
all routing paths would carry a substantial financial penalty (far
larger than probable actual customer loss). However, many carriers
won't even make any guarantee of physical routing independence. Thus,
I have resorted to recommending that clients use multiple carriers who
do not share common backhaul or peering. Not perfect nor cheap, but I
haven't found a better solution. And, it pays to regularly monitor
routings on each link, and attempt to identify when it appears that
connections are flowing between the same intermediate cities -- which
is often an indication of a common network path in my experience.

--
Jon R. Kibler
Blog: Real World Cyber Security
On 6/4/2020 at 7:50 PM, "Jay R. Ashworth"  wrote:----- Original
Message -----
> From: "Frank Bulk" 

> Hard to believe a truck going down an alley took out several states,
but that’s
> what these articles appear to indicate:
> 
> https://week.com/2020/06/03/comcast-down-throughout-the-area/
> 
> https://www.wcia.com/news/internet-outage-hits-midwest/

This seems like an excellent time to revisit the difficulty any
end-user 
customer has getting physical routings out of their carrier, so they
can
manage their own physical diversity; I've always sort of assumed it
was just
to hide the fact carriers don't themselves know what goes where
anymore.

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                      
jra at baylink.com
Designer                     The Things I Think                      
RFC 2100
Ashworth & Associates       http://www.bcp38.info          2000 Land
Rover DII
St Petersburg FL USA      BCP38: Ask For It By Name!           +1 727
647 1274
_______________________________________________
Outages-discussion mailing list
Outages-discussion at outages.org
https://puck.nether.net/mailman/listinfo/outages-discussion
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/outages-discussion/attachments/20200604/bb096514/attachment.htm>