Cisco Systems Cisco 1711 Manual De Usuario

Connect the other end of the cable to a port on the hub, switch, or the Ethernet 
port on your computer.

The example provided in 

 shows connectivity to 

a hub. The router’s Ethernet switch port can be connected to other 
networked devices, such as a switch or computer with a NIC. If you are 
connecting the router’s switch port to another switch, use a crossover 
cable.

If you are connecting a computer to the router’s switch port, it will take about 
30 seconds for connectivity to be established due to the Spanning-Tree Protocol 
(STP) disabling the ports until a loop-free topology is determined. When you use 
this type of connection, you must configure the spanning-tree portfast command 
on the router’s switch port. The spanning-tree portfast command causes a 
spanning tree port to enter the forwarding state immediately, bypassing the 
listening and learning states.

You can use the portfast feature on switch ports that are connected to a single 
workstation or PC only to allow those devices to connect to the network 
immediately, rather than waiting for spanning tree to converge. Do not use the 
portfast feature on ports that are connected to networking devices such as hubs, 
routers, switches, bridges, or concentrators.

Read the following warnings before connecting the router to power.