According to basic definition of a router, it is a device which performs packet switching or Layer-3 forwarding and this layer-3 routing forwarding were typically performed in software or by means of programing algorithms. The fundamental concept for Switching is it works at Layer 2 (L2) and Routing works at Layer 3 (L3) of the networking stack. The L2 data (for ethernet) present in the packet header includes Destination MAC, Source MAC, VLAN etc. Traditional switching operates at layer 2 of the OSI model, where packets are sent to a specific switch port based on destination MAC addresses. This page compares switching vs forwarding vs routing and mentions difference between switching, forwarding and routing. I am here to share my knowledge and experience in the field of networking with the goal being - "The more you share, the more you learn." I am Rashmi Bhardwaj. The previous book in this series, The Packet Guide to Core Network Protocols, covered the IPv4 protocols, masking, and devices that are part of every network.Now it’s time to take on the routing and switching for the network. Routing operates at layer 3, where packets are sent to a specific next-hop IP address, based on destination IP address. switching vs forwarding vs routing | difference between switching,forwarding,routing. Routing and Switching Strategies. Routing allows computers to link through the internet, thus allowing for information sharing between different networking systems. Chapter 1. Switching protocols; Routing protocols; Chapter 7 A model for decision making. If you have clear understanding of packet vs circuit switching then you can understand this concept easily. Difference between Routing and Switching. The chapter begins with a recap of choices made in the last chapter about placement of switches and routers. Devices in the same layer 2 segment do not need routing to reach local peers. On 24 February 2020, the current CCIE Routing and Switching v5.0 … "IP Networking: Part 2 ‐Routing and Switching" Advertised Presentation Scope: IP Networking Fundamentals for Broadcast Engineers is an intensive instructor - lead webinar series focused on major IP networking topics. Conclusion When regarding to choose between a layer 3 switch vs router, you need to understand the business requirement before make your decision: in general, it is proper to get a router when most of the time your device does the routing, otherwise, a layer 3 switch may fit better when you need more ports, better network performance and VLAN segmentation. Take faster routing decisions: Take more time for complicated routing decisions: NAT (Network Address Translation) Routers can perform NAT: Switches cannot perform NAT: Faster: In a different network environment (MAN/ WAN), a router is faster than an L3 switch. 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