Which layer switch

This is where a layer 3 switch can be utilized. A Layer 3 switch is basically a switch that can perform routing functions in addition to switching. A client computer requires a default gateway for layer 3 connectivity to remote subnets.

When the computer sends traffic to another subnet, the destination MAC address in the packet will be that of the default gateway, which will then accept the packet at layer 2, and proceed to route the traffic to the appropriate destination based on its routing table.

It then rewrites the appropriate destination MAC address and forwards the packet back out the layer 2 segment:. Layer 3 switch overview - An overview of how to configure layer 3 routing on Cisco Meraki switches.

SAP Expand child menu Expand. Web Expand child menu Expand. Must Learn Expand child menu Expand. Big Data Expand child menu Expand. Live Project Expand child menu Expand. AI Expand child menu Expand. Toggle Menu Close. The following formula gives how to calculate the forwarding rate of a switch:. The next parameter is the backplane bandwidth or switch fabric capacity, which is the sum of speeds of all ports.

The sum of speeds of all ports are counted twice, one for Tx direction and one for Rx direction. So the backplane bandwidth for SS2Q is:. Other important parameters are number of VLANs that can be configured.

Latency is the delay time that a data transfer suffers. It requires to be as short as possible, so the latency is usually expressed in nanosecond ns. To solve this problem switch came into the picture. A switch first learns, by flooding network just like hub to fill MAC- address table, on which port a particular device is connected. After learning it sends packets to that particular host only.

Attention reader! Skip to content. Change Language. Related Articles. Computer Network Fundamentals.