Aug 29, 2008
Layer 3 vs Layer 2 Switching - Cisco Meraki Traditional switching operates at layer 2 of the OSI model, where packets are sent to a specific switch port based on destination MAC addresses. Routing operates at layer 3, where packets are sent to a specific next-hop IP address, based on destination IP address. Devices in the same layer 2 segment do not need routing to reach local peers. Layer 2 vs Layer 3 Switch: Which One Do You Need? | FS Layer 2 vs Layer 3 Switch. The main difference between Layer 2 and Layer 3 is the routing function. This is also the biggest difference lies between Layer 2 switch and Layer 3 switch. A Layer 2 switch works with MAC addresses only and does not care about IP address or any items of higher layers. Solved: IPSec VPN confusion with layer 2 and/or layer 3 If IPSec is used as site-to-site VPN, I Personally think IPSec is working / linking two sites in layer 3. Case 2: IPSec over MPLS. To my understanding MPLS is an routing protocol and IPSec would working in layer 3 for the encryption. Case 3: As I know there is L2TP+IPSec VPN, which L2TP work as an layer 2 tunneling protocol.
Offering VPN services isn't a simple Layer 2 or Layer 3 choice. If you want to implement true convergence onto a single core infrastructure, your core network should support the transport of public IP and private IP (VPN), as well as a number of legacy Layer 2 WAN and LAN technologies (for example, with Any Transport over MPLS – AtoM).
Layer 2 VPN vs. Layer 3 VPN : What's the Difference Layer 2 VPNs are less scalable than Layer 3 VPNs. Layer 2 VPN is less secured compared to Layer 3 VPN. Layer 3 VPN is more secured compared to Layer 2 VPN. Layer 2 VPN is conceptually more straightforward. Layer 3 VPN is conceptually harder compared to Layer 2 VPN. Layer 2 VPN can become completely transparent to applications. Layer 2 vs Layer 3 - What's The Difference? | VPNpro Oct 03, 2019
Jul 21, 2020
Offering VPN services isn't a simple Layer 2 or Layer 3 choice. If you want to implement true convergence onto a single core infrastructure, your core network should support the transport of public IP and private IP (VPN), as well as a number of legacy Layer 2 WAN and LAN technologies (for example, with Any Transport over MPLS – AtoM). MPLS VPNs: Layer 2 or Layer 3? Understanding the Choice Layer 3 MPLS VPNs will likely remain most appealing to Internet Service Providers that already use BGP extensively and have already deployed high-end IP/MPLS routing equipment at the edge. However, for carriers with existing Layer 2 VPN deployments or those accustomed to delivering Layer 2 vs. Layer 3 MPLS | GCOMM Mar 16, 2012 Layer 3 vs Layer 2 Switching - Cisco Meraki