Configure allowed VLANs on trunk
Jul 5,95By default, all VLANs are allowed across the trunk link. We can verify that using the show interfaces trunk command: …
Read MoreConfigure trunk ports
Jul 3,95To enable inter-switch VLAN communication, you need to configure switches to use VLAN trunking on the links between them. To …
Read MoreConfigure VLANs
Jul 2,95By default, all ports on a Cisco switch are assigned to the VLAN 1. VLAN 1 is the native VLAN …
Read More802.1q overview
Jul 1,95802.1q is a VLAN tagging protocols developed by IEEE (Institute of Electrical and Electronics Engineers). Since it is an open …
Read MoreInter-Switch Link (ISL) overview
Jun 30,95Inter-Switch Link (ISL) is a Cisco proprietary protocol for frame tagging. Since it is a propriatery protocol, it can be …
Read MoreFrame tagging explained
Jun 28,95Frame tagging is used to identify the VLAN that the frame belongs to in a network with multiple VLANs. The …
Read More