> enable
# config t
(config)# hostname test
test(config)# int fa0/0
test(config-if)# ?
Interface configuration commands:
  access-expression       Build a bridge boolean access expression
  arp                     Set arp type (arpa, probe, snap) or timeout
  backup                  Modify backup parameters
  bandwidth               Set bandwidth informational parameter
  bgp-policy              Apply policy propagated by bgp community string
  bridge-group            Transparent bridging interface parameters
  carrier-delay           Specify delay for interface transitions
  cdp                     CDP interface subcommands
  cmns                    OSI CMNS
  custom-queue-list       Assign a custom queue list to an interface
  dampening               Enable event dampening
  default                 Set a command to its defaults
  delay                   Specify interface throughput delay
  description             Interface specific description
  diffserv                diffserv (Provisioning)
  duplex                  Configure duplex operation.
  exit                    Exit from interface configuration mode
  fair-queue              Enable Fair Queuing on an Interface
  full-duplex             Configure full-duplex operational mode
  glbp                    Gateway Load Balancing Protocol interface commands
  half-duplex             Configure half-duplex and related commands
  help                    Description of the interactive help system
  hold-queue              Set hold queue depth
  ip                      Interface Internet Protocol config commands
  keepalive               Enable keepalive
  llc2                    LLC2 Interface Subcommands
  load-interval           Specify interval for load calculation for an
                          interface
  logging                 Configure logging for interface
  loopback                Configure internal loopback on an interface
  mac-address             Manually set interface MAC address
  max-reserved-bandwidth  Maximum Reservable Bandwidth on an Interface
  mtu                     Set the interface Maximum Transmission Unit (MTU)
  netbios                 Use a defined NETBIOS access list or enable
                          name-caching
  no                      Negate a command or set its defaults
  ntp                     Configure NTP
  priority-group          Assign a priority group to an interface
  random-detect           Enable Weighted Random Early Detection (WRED) on an
                          Interface
  rate-limit              Rate Limit
  roles                   Specify roles (by entering roles mode)
  service-policy          Configure QoS Service Policy
  shutdown                Shutdown the selected interface
  snapshot                Configure snapshot support on the interface
  snmp                    Modify SNMP interface parameters
  speed                   Configure speed operation.
  standby                 HSRP interface configuration commands
  timeout                 Define timeout values for this interface
  traffic-shape           Enable Traffic Shaping on an Interface or
                          Sub-Interface
  transmit-interface      Assign a transmit interface to a receive-only
                          interface
  trunk-group             Configure interface to be in a trunk group
  tx-ring-limit           Configure PA level transmit ring limit
  vrrp                    VRRP Interface configuration commands

test(config-if)# speed ?
  10    Force 10 Mbps operation
  100   Force 100 Mbps operation
  auto  Enable AUTO speed configuration
test(config-if)# speed 100
test(config-if)# ip address 1.2.3.4 255.255.0.0
test(config-if)# descript leeds
test(config-if)# no shutdown
test(config-if)# exit