If they can bend the application they are using, and don't mind significant latency, something like RaptorQ codes with deep time interleaving can spackle over considerably larger gaps than 1 seconds, at the cost of some additional overhead.
On Mon, Sep 15, 2025 at 2:07 PM Mike Hammett via NANOG < [email protected]> wrote: > *nods* Well, and that's the rub. Their expectations don't match any > Internet SLA I've ever seen, much less for standard broadband. However, > simply telling the customer that we're within our SLA or proving it's not > our fault doesn't do much to enhance customer satisfaction and thus doesn't > help our reputation. Hearing from others that the broadcast industry has > already figured this problem out and sends the same stream via multiple > paths is a big help in getting us going in the right direction. > > > > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > Midwest-IX > http://www.midwest-ix.com > > ----- Original Message ----- > From: "Saku Ytti" <[email protected]> > To: "North American Network Operators Group" <[email protected]> > Cc: "Mike Hammett" <[email protected]> > Sent: Monday, September 15, 2025 2:13:40 AM > Subject: Re: Resilient Internet > > On Sun, 14 Sept 2025 at 23:29, Mike Hammett via NANOG > <[email protected]> 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 > > > _______________________________________________ > NANOG mailing list > > https://lists.nanog.org/archives/list/[email protected]/message/KJNGBFS4ZW53ENJIBNN5TUMX27JJ5TMZ/ > _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/Z5HYQHC7QPBPMXU7PDZ3L7VWG3OHQTD4/
