Cisco 300 Series

Introduction
OL-32830-01 Command Line Interface Reference Guide 44
1
On all other devices, the four highest ports (e.g. ports 49-52 on SG300-52) cannot
be configured with auto-negotiation.
PHY Diagnostics
The following exceptions exist:
• Copper Ports—PHY diagnostics are only supported on copper ports.
• FE ports—Only basic tests are supported (no cable length).
• 10G ports—TDR test is supported when the operational port speed is 10G.
Cable length resolution is 20 meters.