Extreme по дефолту не любит, когла на компе много ключей, воспринимает как перебор.

ssh1 xxx@10.1.1.17
Received disconnect from 10.1.1.17 port 22:2: Too many authentication failures
Authentication failed.

Заходим просто по паролю.

ssh1 -o PreferredAuthentications=password  xxx@10.1.1.17

sh ports 47 vlan
sh vlan

sh fdb ports 51

sh ports no-refresh

Статусы портов:

• Линк есть - A-Active
• Линка нет - R-Ready

Port State: D-Disabled, E-Enabled, F-Disabled by link-flap detection,
               L-Disabled due to licensing
Link State: A-Active, R-Ready, NP-Port not present, L-Loopback,
            D-ELSM enabled but not up,
            d-Ethernet OAM enabled but not up,
            B-MACsec enabled but blocked awaiting authentication