What is a Layer 3 MPLS GRE VPN and why to use it? The MPLS VPN L3VPN over GRE feature provides a mechanism for tunneling Multiprotocol Label Switching (MPLS) packets over non-MPLS networks. This feature allows you to create a generic routing encapsulation (GRE) tunnel across a non-MPLS network. The Read more…
What is inter-vlan routing and why to use it? Inter-vlan routing is defined as a process of forwarding network traffic from one vlan to another vlan using a router or layer 3 device. To facilitate inter-vlan routing a router must be connected to the switching infrastructure or the switch must Read more…
What is VLAN trunking protocol and why to use it? VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks (VLAN) between switching systems. VTP carries VLAN information to all the switches in a VTP domain and advertisements are sent over 802.1Q Read more…
What are vlans and why to use them? A virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2). VLANs work by applying tags to network packets and creating the appearance and functionality of network traffic Read more…