Users Guide

Layer 2 Switching Commands 433
console(config-if-Gi1/0/5)# shutdown
The following example reenables Gigabit Ethernet port 1/0/5.
console(config)#interface gigabitethernet 1/0/5
console(config-if-Gi1/0/5)# no shutdown
speed
Use the speed command in Interface Configuration mode to configure the
speed of a given Ethernet interface. To restore the default, use the no form of
this command.
Syntax
speed 10 | 100 | 1000 | 10000 | 25000 | 40000 | 50000 | 100000
speed auto [ 10 | 100 | 1000 | 2500 | 5000 | 10000 | 25000 | 40000 | 50000
| 100000 [10 | 100 | 1000 | 2500 | 5000 | 10000| 25000 | 40000 | 50000 |
100000] … } }
no speed
• auto—Enable the port for auto-negotiation. Multiple speeds may be
configured in conjunction with this parameter.
• 10—Enable the port for 10 Mbps operation.
• 100—Enable the port for 100 Mbps operation.
• 1000—Enable the port for 1 Gbps operation.
• 2500—Enable the port for 2.5 Gbps operation.
• 5000—Enable the port for 5 Gbps operation.
• 10000—Enable the port for 10 Gbps operation.
• 25000—Enable the port for 25 Gbps operation.
• 40000—Enable the port for 40 Gbps operation.
• 50000—Enable the port for 50 Gbps operation.
• 100000—Enable the port for 100 Gbps operation.
Default Configuration
Auto-negotiation is enabled by default on copper ports and SFP ports.