How to configure VLANs on Cisco Catalyst Switch

Hi Jeffery,

Those commands are all you need to put two interfaces in VLAN 50. What’s the output of the following commands?

  • show vlan (to verify that the VLAN exists)
  • show ip interface brief (to check the interface statuses
  • show run int fa0/1 and show run int fa0/2 (to make sure no other commands are applied

The configuration of VLANs is the same on any of the Catalyst switches…the 2950, 2960, 3550, 3560, 3750 and 4500/6500 series use the same commands. The same thing applies to most of the routers.

Also, make sure your windows firewall is not blocking ICMP between your computers…might be wise to disable it for the moment.

Rene