Re: Resilient Internet

[Riley O via NANOG <nanog () lists nanog org>]

> > > you either do it twice or you do it once and break
> > > SLA and apologise regularly.

Well said. Shows up outside networks too, CPU instruction lockstepping was built on the same principle.

https://en.wikipedia.org/wiki/Lockstep_(computing)




On Monday, September 15th, 2025 at 1:14 AM, Saku Ytti via NANOG <nanog () lists nanog org> wrote:

>

>

> On Sun, 14 Sept 2025 at 23:29, Mike Hammett via NANOG
> nanog () lists nanog org wrote:

> > I have a radio station customer who is utilizing one of those streaming services to bring their broadcast station 
> > online. We've received a complaint of a half dozen or so 1-second drops in connectivity over the Internet to this 
> > streaming service in the six or so months they've been a customer. I consider that pretty amazing service delivery. 
> > However, the customer does not. I suspect this is a layer 8 issue, but what have your experiences been in these 
> > kinds of situations, and what technical remedies would be available? I don't know what sub-second failover systems 
> > exist, but I'm sure they're not cost-effective if they do.

>

> Lot more information would be needed to meaningfully contribute.

> But generally speaking if the price expectation is anywhere near what
> Internet services typically are, the customer is definitely asking too
> much. And your contract terms should make it clear that this level of
> service availability is within the SLA.

> Having said that, I used to work for a company that provides streams
> for terrestrial tv. Not IP-TV, regular antenna TV. How this was done
> was that there was dual-plane MPLS/IP backplane and the stream was
> sent through both planes, at the antenna site a duplicate packet was
> dropped before content was fed to the transmitters.
> If you have a very high expectation of availability, you'll very
> quickly find that you either do it twice or you do it once and break
> SLA and apologise regularly.

>

>

> --
> ++ytti
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