![]() Click OK to proceed the switch will reboot. A pop-up window will appear warning that changing the system mode will cause the switch to automatically reboot itself, and erase the startup configuration file in process. Layer 3 (Network) adds a level of intelligence usually found in routers and the ability to route data using IP addresses. Note: Layer 2 (Data-Link) forwards data based on MAC addresses. In the System Mode field, select either the L2 or 元 radio button to select which mode the switch will run in. Log into the web configuration utility and choose Administration > System Settings. Using the GNS3 program, you can use the vIOS-L2 IOS image for Cisco CCNA and Cisco Hello, there are an issue with 元 Etherchannel, ping between two 元. Ps - I meant which IOS version are your running, not GNS3-version.and which Router you are using within GNS3. The objective of this document is to show you how to enable Layer 3 Mode on the SF/SG 300 Series Managed Switch using the graphical user interface (GUI) and command line interface (CLI). Like IngPercy pointed out the command for a router with etherswitch module is not the same as it is for a switch. If you would like to know more about the Layer 3 switch evolution, click here. A switch operating in Layer 3 mode has low latency, and can be a replacement for other routers with similar throughput. ![]() ![]() In Layer 3 mode, the switch analyzes only the IP header segment of a frame using hardware, as opposed to a router analyzing the entire packet with software. In this mode, the switch uses hardware to make forwarding decisions based on the MAC address information in a frame. These devices are now basically Layer 3 switches. These ports are now active, and are switchports, that is, they now operate at layer 2 rather than layer 3. By default, the SF/SG 300 Series Managed Switch operates in Layer 2 mode. To do that, we enable each interface and make them switchports: R1conf t R1 (config)interface range Fa1/0 - 15 R1 (config-if-range)no shutdown R1 (config-if-range)switchport.
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