https://en.wikipedia.org/wiki/Dell_Networking_Operating_System
http://topics-cdn.dell.com/pdf/
DNOS 6.x:
This is the operating system running on the Dell Networking N-series (campus) networking switches. It is the latest version of the 'PowerConnect' operating system, running on a Linux Kernel. It is available as upgrade for the PowerConnect 8100 series switches (which then become a Dell Networking N40xx switch) and it also is installed on all DN N2000 and N3000 series switches. It has a full web-based GUI together with a full CLI (command line interface) and the CLI will be very similar to the original PowerConnect CLI, though with a range of new features like PVSTP (per VLAN spanning tree), Policy Based Routing and MLAG.
DNOS 9.x:
This is the operating system running on Dell Networking S- and Z- series switches and is a further development of the FTOS or Force10 Operating System. Standard DNOS 9.x (and FTOS) only offers a CLI and no GUI, although with the automation toolset it is possible to create your own webGUI on DNOS9 / FTOS switches. DNOS 9.x is running on NetBSD.
Only the PowerConnect 8100 will be able to run on DNOS 6.x: all other PowerConnect ethernet switches will continue to run its own PowerConnect OS (on top of VxWorks) while the PowerConnect W-series run on a Dell specific version of ArubaOS. The Dell Networking S- xxxx and Z9x00 series will run on DNOS where the other Dell Networking switches will continue to run FTOS 8.x firmware.
Dell Networking 2848 办公区产品
中端产品（1G）
Dell Networking N2048 2层交换机
Dell Networking N3048 3层交换机
Dell Networking N4064 聚合交换机（10G）
高端产品（10G）
Dell Networking S4810
Dell Networking Z9100（40G）