Router(config)#router eigrp 100
Turns on the EIGRP process
100 is the autonomous system (AS) number, which can be a number between 1 and 65535
All routers in the same AS must use the same AS number
Specifies which network to advertise in EIGRP
Logs any changes to an EIGRP neighbor adjacency
The eigrp log-neighbor-changes command, although optional, is recommended to help with troubleshooting.
Router(config-router)#no network 10.0.0.0
Removes the network from the EIGRP process
Router(config)#no eigrp 100
Disables routing process 100
Sets the bandwidth of this interface to x kilobits to allow EIGRP to make a better routing decision
The bandwidth command is used for metric calculations only. It does not change interface performance.