nanog mailing list archives

Re: COVID-19 vs. our Networks


From: Hugo Slabbert <hugo () slabnet com>
Date: Sat, 14 Mar 2020 12:05:55 -0700

I don't want to get in a fight, but absolutely:
Folks saw congestion from a massive free content drop this past week.

But as folks had called out, that was the CDN angle of distributing that
content rather than the actual game play. There is a rather long discussion
about that in the "akamai yesterday - what in the world was that" thread
from Jan/Feb/March.

I don't want to trivialize the challenges people may have from knock-on
effects of upstream providers facing congestion or CDNs that have
co-located content on nodes serving those bits with other bits, but did
want to carve out regular online gameplay from content distribution.
Whether people end up adjusting plans around large content distribution at
this time, I guess remains to be seen.

On Sat., Mar. 14, 2020, 11:49 Clayton Zekelman <clayton () mnsi net> wrote:



The access facility and the underlying long haul are telecommunications
services.  The application provided using that facility may or may not be.
The congestion you were experiencing was not with the telecommunications
facility itself, but with the application running on it, and was as you
state, outside of your network - on a CDN hosted service.  Your argument is
with your third party hosted service.   Their argument is with their CDN.

Internet exchange points are not regulated.  Interconnections between ISPs
and CDNs are private agreements, and are always at risk of congestion and
commercial dispute between the parties.  There is a long history of this.

If you have a direct layer 2 or 3 private line to your hosted service
provider's CDN, and it was not performing as per the SLA, then you need to
take that up with them.

If the underlying telecommunications facility failed, and was classified
as critical infrastructure, and not restored in a timely manner, then you
need to take that up with the provider of that infrastructure.


I'm not trying to be difficult, but the fact remains that there is a
distinction between telecommunications services, and Internet services.
The fact that Internet services (and I'm not talking about any one
particular DIA circuit, but the rather the global network of networks) work
so well most of the time, such that people tend to start treating it as a
substitute for telecommunications services is pretty impressive.

There are cost/benefit tradeoffs for using cloud hosted services and
public Internet infrastructure.  You save money by not operating the data
centre yourself, but you pay for it in reliability.   Your organization may
have made that choice, but to say that because you chose to put critical
applications on Internet infrastructure, other users of the Internet should
take a back seat to your needs seems to be a bit of a stretch.   Again, if
your provider sold this to you as something that was NOT relying on public
Internet, and was Layer 2/3 private managed services with dedicated
bandwidth, then you need to have a conversation with them.





At 02:01 PM 14/03/2020, Mike Bolitho wrote:

First of all, we use a mixture of layer 2/3 private lines and DIA
circuits. You don't know our infrastructure, stop being condescending. It
goes against the spirit of this mailing list.

Second, yes, the Internet is protected. Both public and private lines. I
know this because we have TSP coded circuits and I spent four years at a
Tier I ISP servicing TSP coded circuits

Third, the trouble we had was a third party service having congestion
issues. They are hosted by the same CDN as Call of Duty. The problem was
both outside of our control and our third party service's control. The
chokepoint was between ISPs/IXPs and the CDN. I've seen this time and time
again while working at the aforementioned ISP. Saturated links on
ISP/IXP/CDN networks. This is where the TSP code comes in. In this day and
age of cloud services, it is financially unfeasible for every company to
have a private line to every single cloud provider. That's preposterousÂ
to even suggest.

- Mike Bolitho


On Sat, Mar 14, 2020 at 10:40 AM Clayton Zekelman <clayton () mnsi net>
wrote:


The Internet is not a telecommunications service, according to your FCC.Â
If you want predictability, buy WAN circuits, not Internet circuits.   If
your provider is co-mingling Internet and WAN traffic (i.e. circuits with
defined endpoints vs. public Internet or VPN), then you need to talk to
them about their prioritization.

If you have mission critical applications, put them on mission critical
infrastructure, not the public Internet.

Oh, that's right - Internet circuits are cheaper than WAN circuits

--

Clayton Zekelman
Managed Network Systems Inc. (MNSi)
3363 Tecumseh Rd. E
Windsor, Ontario
N8W 1H4

tel. 519-985-8410
fax. 519-985-8409


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