dfex, you are certainly correct in saying that we have a number of the elements in place already. EX switches can retrieve JUNOS software for an upgrade using DHCP, however they are unable to currently pull down the configuration using this method.
However once an EX has it's config loaded it can "call home" to NSM and retreive it's production configuration and be integrated into the management platform. I recently assisted a customer doing this type of deployment. We loaded a very basic configuration onto the device (IP address, gateway, NSM Config) and then rolled out 100 devices into the network...NSM was prepovisioned to expect the exact EX (based on Serial number) to call home and then the configuration was uploaded was connected. Not a perfect solution given that the base config had to be loaded, but sped deployment up significantly.
As far as Trill is concerned we have very similar capabilities with Virtual Chassis Extension on the EX4200 (and now EX8200 Series) devices. Virtual Chassis Extension lets up to 10 EX4200 devices connect together using 1Gb or 10Gb interfaces via any topology and act as a single switch - providing the same and more benifits as proposed by Trill. I've got several customers running VCE in the wide area as a ring, connecting Datacenters and offices together....layer-2 every where with no spanning tree in sight!
re
Francois
...read the full original post from fprowse Tracker.