GNS3

Switch emulation in GNS3:

In brief:  Take an image of a 2600.  Add slot NM16-ESW

Start the router.

Use the command from conf t:

int range fa0/0 -10 (for example)

switchport

exit

Now use these commands, which are not the same as a catalyst:

Router#vlan database

Router(vlan)#vlan 10

VLAN 10 added:     Name: VLAN0010

Router(vlan)#exit

APPLY completed. Exiting….

Now we can try the command to check your VLANS:

show vlan   Will give you the output:  % Ambiguous command:  “show vlan”

let’s try other command :

show vlans   Which will give you:  No Virtual LANs configured.

Now try the following command:  show vlan-switch   Which will give you:

Router#show vlan-switch

VLAN Name                             Status    Ports

—- ——————————– ——— ——————————-

1    default                          active    Fa1/0, Fa1/1, Fa1/2, Fa1/3

Fa1/4, Fa1/5, Fa1/6, Fa1/7

Fa1/8, Fa1/9, Fa1/10, Fa1/11

Fa1/12, Fa1/13, Fa1/14, Fa1/15

10   VLAN0010                         active