On Tue, 27 Jun 2023 at 06:02, Mark Tinka via juniper-nsp <[email protected]> wrote:
> > Similar use case here but we use a QFX as a fusion satellite if port > > expansion is required. > > Works well as an small site start up option. > > Are vendors still pushing their satellite switches :-)? > > That technology looked dodgy to me when Cisco first proposed it with > 9000v, and then Juniper and Nokia followed with their own implementations. Juniper messaging seems to be geo-specific, in EU their sales seems to sell them more willingly than in US. My understanding is that basically fusion is dead, but they don't actually have solution for access/SP market front-plate, so some sales channels are still pitching it as the solution. Nokia seems very committed to it. I think the solution space is a) centralised lookup engines - so you have cheap(er) line cards for high density low pps/bps b) satellite c) vlan aggregation Satellite is basically a specific scenario of c), but it does bring significant derisking compared to vlan aggregation, as a single instance is designing it and can solve some problems better than can be solved by vendor agnostic vlan aggregation. Vlan aggregation looks very simple on the surface but is fraught with problems, many of which are slightly better solved in satellites, and these problems will not be identified ahead of time but during the next two decades of operation. Centralised boxes haven't been available for quite a few years, but hopefully Cisco is changing that, I think it's the right compromise for SPs. But in reality I'm not sure if centralised actually makes sense, since I don't think we can axiomatically assume it costs less to the vendor, even though there is less BOM, the centralised design does add more engineering cost. It might be basically a way to sell boxes to some market at lower margins, while ensuring that hyperscalers don't buy them, instead of directly benefiting from the cost reduction. -- ++ytti _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
