Introduced March 15, 2015
Strata DNX Family – Dune.
Used for higher cost devices with more demanding needs.
Some 2017 additions to the family that are targetted at the network edge.
|Geometry||28 nm||28 nm||16 nm||16 nm||7 nm|
Jericho2c+ is not part of the Cisco presentation from 2019. It was introduced
in Sept 2020. Jericho2 has 16 nm geometry and Jericho2c+ has 7 nm. This explains
the increase in power efficiency.
Perhaps this table should also include Qumran 2C. At the September 2019 regional OCP conference Carsten Michel (Deutsche Telekom) presented on new switches designed to fill the BNG (border Network Gateway) slot. These switches -- one leaf, one spine -- will use the Qumran 2C when it becomes available. Meanwhile, Delta is building prototypes with the Jericho 2C which is a pin-for-pin equivalent except that the latter has a fabric interface that is not needed here.
|Cisco has prepared a series of youtube videos and PDFs that explain Dune internals. The first one of these covers the basics. The youtube presentation date is March 27, 2019. The others are good, too. Of special interest, if you're smart about how you organize your FIB the external TCAM models are not needed to carry full routes. The second video covers how the buffer works in a large test bed.|