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.
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