何謂Layer 2、Layer 3⋯？交換器的原理

Simply put, Layer 2 switches, do not have the Capability to act as Layer 3 gateways. A Layer 3 switch is, first and foremost, a Layer 2 switch.

主要用於區域網路上。 Layer3：運用在網路層，在傳輸中將IP位址加入資料組成封包，L3主要以IP運作為主，相比於L2 可橫跨不同實體區域或VLAN的IP路由，在不同網段間互相連通。

This article outlines the difference between layer 2 and layer 3 switches and the appropriate use cases for each.

如同L2，L3 Switch 也是透過維護IP Address 的表格，來知道收到的資料要傳到哪裡去。不同的點是，L3 Switch 的功能更強大了，不單單只是記錄相鄰的設備，而是一張「路由表」 ...

Layer 3 switches can connect different VLANs, and offer more security features than Layer 2 switches. Other functions, such as Quality of Service (QoS), allow ...

According to the OSI model, the Layer 2 switch works on the data link layer, while the Layer 3 switch works on the network layer. There comes ...

Layer 2 switches operate at the data link layer, forwarding data based on MAC addresses, while layer 3 switches route traffic using IP ...

Layer 2 switches are more cost-effective than layer 3 switches, making them a better choice for small to medium-sized organizations with limited network ... What is a layer 2 switch? · What is a layer 3 switch? · Layer 3 switches: A...

Layer 2 is mac addresses and Layer 3 is ip addresses. Depending on how you are using vlans, it'll affect that for sure. Upvote 8

Performance · Layer 2 switches are faster when it comes to simple, local communication within the same network, as they don't need to perform ...