1. Sumario de Comandos
Comandos Básicos
Comandos Básico del IOS Comandos Básico CLI
Switch(config)#hostname hostname Switch> (enable) set system name name-string
Switch> (enable) set prompt name (for different
prompt)
The switch in-band management, management vlan
Switch(config)#interface vlan 1 Switch> (enable) set interface sc0 up
Switch(config-if)#ip address ip-address Switch> (enable) set interface sc0 ip-address
netmask netmask broad
Switch(config-if)#ip default-gateway Switch> (enable) set interface sc0 vlan
ipaddress (default = 1)
Switch> (enable) set ip route default gateway-
address
Ends and Exits
Switch(config-if)#end
Switch#
Switch(config-if)#exit
Switch(config)#
Switch(vlan)#end
Switch#
Session Timeout
Switch(config-line)#exec-timeout Switch> (enable) set logout minutes
minutes
Salvar configuración
Switch#copy running-config startup- {Config saved automatically}
config
Switch> (enable) write net (upload)
Switch#copy running-config tftp
Switch> (enable) configure net download)
Switch#copy tftp running-config
Switch> (enable) copy config [flash |file-id |
tftp]
Switch> (enable) copy flash [flash |file-id |
config]
Comando Show Visualización Configuración
Switch#show running-config Switch> (enable) show config [all]
Switch#show ip interface Switch> (enable) show port mod/num
Switch> (enable) show interface
Switch> (enable) show module

2. Comandos Básicos
Comandos Básico del IOS Comandos Básico CLI
Borrar configuración
Switch#erase startup-config Do Both of these:
1900 Switches: Switch> (enable) clear config all
1900-SW#(config)#delete nvram Switch> (enable) clear vtp
1900-SW#(config)#delete vtp
1900-Switch#show ip
Passwords
Set EXEC level password Set privileged level password
Switch(config)#enable password level 1 Switch> (enable) set enablepass
password
vty and con passwords
Set privileged level password
Switch> (enable) set password
Switch(config)#enable password level 15
password
vty and con passwords
Switch(config)#line vty vty-first vty-
last
Switch(config-line)#password password
Switch(config)#line con 0
Switch(config-line)#password password
Comandos de Interfaces
Switch(config)#interface fastethernet 0 Switch> (enable) set port enable mod/num (enable
Switch(config-if)#description a port or a range of ports)
description-string Switch> (enable) set port name mod/num
Switch(config-if)#speed [10 | 100 | description
auto] (Ether only) Switch> (enable) set port speed mod/num [10 |
Switch(config-if)#duplex [auto | full | 100 | auto]
half] (Ether only) Switch> (enable) set port duplex mod/num [auto
| full | half]
Comandos Show
(auto sets speed and duplex)
Switch#show ip
Comandos Show
Switch> (enable) show interface
Switch> (enable) show port name mod/num
CDP
Switch(config-if)#cdp enable Switch> (enable) set cdp {enable|disable}
mod/port
Comandos Show
Comandos Show
Switch#show cdp inteface type mod/num
Switch> (enable) show cdp neighbors [mod/port]
Switch#show cdp neighbors type mod/num [vlan |duplex |capabilities | detail]
[detail]

3. VLANs
Comandos Básico del IOS Comandos Básico CLI
The switch in-band management, management vlan
Switch(config)#interface vlan 1 Switch> (enable) set interface sc0
ipaddress netmask broad
Switch(config-if)#ip address ip-address
netmask Switch> (enable) set interface sc0 vlan
(default = 1)
Switch(config-if)#ip default-gateway
ipaddress Switch> (enable) set ip route default
gateway-address
Creación VLANs
Switch#vlan database Switch> (enable) set vlan vlan-num [name
name]
Switch(vlan)#vlan vlan-num name vlan-name
Switch> (enable) set vlan vlan-num
Switch(config)#interface fastethernet 0 mod/num,list
Switch(config-if)#switchport access vlan Switch> (enable) clear vlan vlan-
vlan-num
Switch(config-if)#no switchport access vlan
vlan-num
1900 Switches
1900-SW(config-if)#vlan-membership static
vlan-num (Doesn’t exist)
Comandos Show Comandos Show
Switch#show vlan brief Switch> (enable) show vlan
Switch#show ip Switch> (enable) show interface
VLAN Trunks
Publicación
Switch(config)#interface fastethernet 0 Switch> (enable) set trunk mod/port [on |
off |desirable | auto | nonegotiate] [isl
Switch(config-if)#switchport mode [access | | dot1q | dot10 | lane | negotiate] vlan-
multi | trunk] range
Switch(config-if)#switchport trunk Switch> (enable) clear trunk mod/port
encapsulation {isl|dot1q}
vlan-range (must remove as all vlans trunked by
Otros comandos default)
Switch(config-if)#switchport trunk allowed
vlan remove vlan-list (must remove as all trunked
by default)
Switch(config-if)#switchport trunk allowed
vlan add vlan-list (then add vlans to be trunked)
Switches 1900
Switch(config-if)#trunk on
Switch(config-if)#no trunk-vlan vlan-list
Comandos Show Comandos Show
Switch#show interface mod/num switchport Switch> (enable) show trunk
Show port capabilities
Switch> (enable) show port capabilities
mod/num

4. VLANs
Comandos Básico del IOS Comandos Básico CLI
VTP (VLAN Trunking Protocol)
Habilitación de VTP
Switch#vlan database Switch> (enable) set vtp [domain
domainname][mode {server | client |
Switch(vlan)#vtp domain domain-name transparent}] [password password]
Switch(vlan)#vtp {server | client |
transparent} Switch> (enable) set vtp v2 enable (version
Switch(vlan)#vtp password password
Switch(vlan)#vtp v2-mode (version2)
VTP Pruning
Switch(vlan)#vtp pruning Switch> (enable) set vtp pruning enable
Switch> (enable) set vtp pruneeligible
Switch(config-if)#switchport trunk pruning vlan-range
vlan remove vlan-list (remove vlans from pruning)
Switch> (enable) clear vtp pruning
vlanrange
Comandos Show Comandos Show
Switch#show vtp Switch> (enable) show vtp domain
Switch#show vtp status Switch> (enable) show vtp statistics
Switch#show vtp counters Switch> (enable) show vlan
Spanning Tree Protocol
Comandos Básico del IOS Comandos Básico CLI
Habilitación de Spanning Tree (Habilitado por Omisión)
Switch(config)#spantree vlan-list Switch> (enable) set spantree enable [all |
mod/num]
(Enabled by default)
Otros comandos de configuración
Bridge Priority Bridge Priority
Switch(config)#spanning-tree [vlan Switch> (enable) set spantree priority
vlanlist] priority prty priority vlan (Lower wins, Priority default = 32,768)
Port Cost Port Cost
Switch> (enable) set spantree portcost
Switch(config-if)#spanning-tree [vlan vlan-list] mod/num cost (Lower wins)
cost cost
Switch> (enable) set spantree portvlancost
mod/num [cost cost] [vlanlist]

5. Spanning Tree Protocol
Comandos Básico del IOS Comandos Básico CLI
Port Priority Port Priority
Switch(config-if)#spanning-tree [vlan vlan-list] port- Switch> (enable) set spantree portpri mod/num
priority port-priority cost (Lower wins, Priority default = 32, range 0-63)
Switch> (enable) set spantree portvlanpri
mod/num priority vlan-list
Root Bridge Root Bridge
Switch> (enable) set spantree root
N/A [secondary] [vlan-list][dia diameter] [hello
hellotime]
(Reduces default priority of 32,768 to 8,192)
STP Timers
Switch(config)#spanning-tree [vlan Switch> (enable) set spantree hello interval
vlanlist][hello-time seconds] [vlan]
(Default = 2 secs ) Switch> (enable) set spantree fwddelay delay
[vlan]
Switch(config)#spanning-tree [vlan
vlanlist][forward-time seconds] Switch> (enable) set spantree maxage
agingtime [vlan]
(Default = 15 secs )
Switch> (enable) set spantree root
Switch(config)#spanning-tree [vlan [secondary] [vlan-list] [dia diameter] [hello
vlanlist][max-age seconds] hellotime]
(Default = 20 secs ) (Lower wins, Priority default = 32,768)
STP PortFast, UplinkFast, BackboneFast
Switch(config)#spanning-tree portfast Switch> (enable) set spantree portfast
[mod/num] [enable|disable]
Or
Switch> (enable) set spantree uplinkfast
Switch(config)#spantree start-forwarding [enable|disable] [rate update-rate]
[allprotocols off | on]
(For server and workstation ports)
Switch> (enable) set spantree backbonefast
Switch(config)#spanning-tree uplinkfast [enable|disable]
[max-update-rate pkts-per-sec]
(Must be on all switches, when receives inferior BPDU)
(For access switches when direct knowledge of failure)
Comandos Show
Switch#show spanning-tree [vlan] Switch> (enable) show spantree [vlan]
Switch#show spanning-tree mod/num Switch> (enable) show spantree mod/num
Inter-VLAN Routing
5000 Integrated Route Processor
External Route Processor Commands
Commands
VLANs – created at the switch level, but controlled at
the route processor level.

6. Inter-VLAN Routing
5000 Integrated Route Processor
External Route Processor Commands
Commands
External Route Processor Integrated Route Processor
Router(config)#interface ethernet 0 Switch> (enable) session module-number
Router(config-if)#encapsulation [isl | *Router(config)#interface vlan-
dot1q] vlan-number interfacenumber
Router(config-if)#ip address ip-address Router(config-if)#ip address ip-address
subnet-mask subnet-mask
Configuración de ruteo
Router(config)#ip routing Router(config)#ip routing
Router(config)#router routing-protocol Router(config)#router routing-protocol
Router(config-router)#network network
Router(config-router)#network network
* Differs from:
Switch(config)#interface vlan 1
Switch(config)#assigns ip address to switch mngt
interface
Router(config)#configures vlan interface on
RSM
Comandos Básico del IOS Comandos Básico CLI
Default Gateway Default Gateway
Switch(config)#ip default-gateway ip Switch> (enable) set ip route destination
address
gateway metric
Comandos Show
Comandos Show
Switch#show ip
Switch> (enable) show module mod-number