How does a Layer 2 switch forward frames?
To forward the frame, the switch examines the destination MAC address and compares it to addresses found in the MAC address table. If the address is in the table, the frame is forwarded out the port associated with the MAC address in the table.
What is a frame forwarding method?
In this switching technique, when the switch receives the frame, it stores the frame data in buffers until the full frame has been received. During the this process, the switch analyses the current frame for information about its destination.
What is Layer 2 broadcast?
A Layer 2 Broadcast is any frame with a Destination MAC address of FFFF. FFFF. It is also sometimes displayed as ff:ff:ff:ff:ff:ff or ff-ff-ff-ff-ff-ff — these are all identical ways of displaying the “all F’s” MAC address.
When the layer 2 switch receives the broadcast it will flood it out all interfaces except for the?
A broadcast frame sent by one device is received by all other devices in the same broadcast domain. A broadcast, is a one to everyone communication. When a switch receives a broadcast, it will forward that broadcast out every connected interface, except for the interface that the broadcast arrived on.
What is the significant difference between a hub and a Layer 2 LAN switch?
A hub is a very simple device that does virtually no processing and simply forwards the packets it receives. It does not read or inspect the data contained in the packets. On the other hand, a layer 2 switch has the processing power to look at the packets to know the destination and the source.
What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?
What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table? It forwards the frame out of all ports except for the port at which the frame was received.
What is the significant difference between a hub and a layer 2 LAN switch?
Which frame forwarding method receives the entire frame?
Store-and-forward switching: With this frame forwarding method, the switch receives the entire frame and computes the CRC. The switch uses a mathematical formula, based on the number of bits (1s) in the frame, to determine whether the received frame has an error.
What are the layer 2 devices?
LAYER 2 NETWORKS Devices used on a Layer 2 Ethernet network include network interface cards, hubs, bridges and switches. Ethernet devices use ‘burned in’ MAC addresses to identify each host.
How do you know if a switch is layer 2 or 3?
Layer 2 vs Layer 3 switches Devices in an Ethernet network are identified by a MAC (media access control) address, which is generally hardcoded to a particular device and doesn’t normally change. Layer 3 is the network layer and its protocol is the Internet Protocol or IP.
When a Layer 2 switch receives a Layer 2 broadcast frame what action does it take?
Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame? It sends the frame to all ports except the port on which it received the frame.
What is a Layer 2 switch and how does it make forward and filter decisions?
Layer 2 switching (also known as the Data Link layer switching) is the process of using devices’ MAC addresses to decide where to forward frames in a LAN. Layer 2 switching is efficient because there is no modification to the data packet, only to the frame encapsulation of the packet.