It was the extreme representative in my country who presented the proposal. With the intervening years of no service included to be eligible to do the upgrade. We have many Enterasys Switch but because they are layer 2 we are able to download the firmware from website. This is the only one we can’t get updates or upgrades… And now the support service is too expensive for a ten years old switch.
I know about the end of support but i still think the N3, with the latest firmware, is a good candidate for a redundant L2 distribution switch. Cisco usually allow download for L2 version without service contracts. The initial idea was to "limit" the N3 to L2 to be able to upgrade...
It was a good idea to convert to L2 if updates were available. But is not technical viable. I must consider bought a new L2 distribution switch. One with lifetime free updates...
Thanks for your time James, have a good weekend.