To configure port speed and duplex setting, use the following command: config ports <portlist> auto off {speed [10 | 100 | 1000]} duplex [half | full] To configure the system to autonegotiate, use the following command: config ports <portlist> auto onTo configure port speed and duplex setting, use the following command: config ports <portlist> auto off {speed [10 | 100 | 1000]} duplex [half | full] To configure the system to autonegotiate, use the following command: config ports <portlist> auto on10 Gbps stacking ports. 10 Gbps small Form Factor pluggable+ (SFP+) fiber ports. These should be configured to 10 Gbps auto off if an SFP+ optic is inserted; they should be configured to 1G auto on (or auto off) if 1G SFP optic is inserted. Stacking ports always use the same type of connector and. ThePort Typearea displays the type and speed of the current port. Configuring Port settings allows you to set the global and per port setting of all the switch ports. Most of the time, the switch and the network device connected to it automatically negotiate their. You can configure the rate of an Ethernet interface in the following three scenarios: Auto-negotiation mode: You can run the negotiation auto command to configure an Ethernet interface to work in auto-negotiation mode.