How do I determine if both switch ports to which the end devices connect are in the same VLAN? And is Spanning-Tree Protocol disabled on a VLAN?
You can configure two types of VLANs on a Catalyst 1200: bridge VLANs or IP VLANs. To verify that both switch ports are in the same VLAN, use either the show bridge or show ip vlan command. The output contains a table showing the VLAN port assignments. The second column of the table is labeled “Ports,” and shows the ports assigned to each VLAN. Both ports you are trying to connect across must be assigned to the same VLAN. The third column of the table is labeled “Spanning Tree” and shows whether Spanning-Tree Protocol is enabled or disabled.
