0
Bridges and switches use MAC (Media Access Control) addresses to make data forwarding decisions. When a frame is received, they examine the destination MAC address and consult their MAC address table, which maps MAC addresses to specific ports. If the address is found, the device forwards the frame to the corresponding port; if not, it typically broadcasts the frame to all ports except the one it was received on. This process helps efficiently direct data traffic within a local area network.
What else can I help you with?
What are Data Link Layer Devices?
bridges, Switches and NIC..
Switch work in which layer of osi model?
Switches / Bridges and hubs work at data link layer, but there are layer three switches which operate at network layer. Dhruv
Why are switches made?
Switches are made to connect multiple devices within a network and facilitate the exchange of data packets between these devices. They help regulate network traffic by filtering and forwarding data only to the intended recipient, improving the efficiency and speed of data transmission within the network.
Discuss the differences between hubs repeaters bridges and switches?
A repeater amplifies a signal. It will also re-send the signal as a "clean" signal. A hub is a multiport repeater. It will send a signal it receives out, through all of its ports - except the port where it received the signal. Bridges and switches are more intelligent, in that they send data only to the destination - according to the MAC address. Bridges and switches are similar, but switches have more hardware optimization, allowing for fast switching of large volumes of data.
What are two functions of intermediate devices on a network (Choose two.)?
Intermediate devices on a network, such as routers and switches, serve critical functions including packet forwarding and traffic management. Routers direct data packets between different networks, ensuring they reach their appropriate destinations, while switches facilitate communication within the same network by forwarding data to specific devices based on their MAC addresses. Additionally, these devices can enhance network security and performance by managing data flow and preventing congestion.
How are layer 2 switches similar to layer 3 switches?
A layer 2 switch at it's core only forwards data within a LAN and only deals with MAC addresses. A layer 3 switch has the capability of forwarding frames and packets because it understands IP addresses.
What is the difference among different types of switching devices in networking?
Switches are data link layer devices that, like bridges, enable multiple physical LAN segments to be interconnected into a single larger network. Similar to bridges, switches forward and flood traffic based on MAC addresses. Any network device will create some latency. Switches can use different forwarding techniques-two of these are store-and-forward switching and cut-through switching. In store-and-forward switching, an entire frame must be received before it is forwarded. This means that the latency through the switch is relative to the frame size-the larger the frame size, the longer the delay through the switch. Cut-through switching allows the switch to begin forwarding the frame when enough of the frame is received to make a forwarding decision. This reduces the latency through the switch. Store-and-forward switching gives the switch the opportunity to evaluate the frame for errors before forwarding it. This capability to not forward frames containing errors is one of the advantages of switches over hubs. Cut-through switching does not offer this advantage, so the switch might forward frames containing errors. Many types of switches exist, including ATM switches, LAN switches, and various types of WAN switches. Asynchronous Transfer Mode (ATM) switches provide high-speed switching and scalable bandwidths in the workgroup, the enterprise network backbone, and the wide area. ATM switches support voice, video, and data applications, and are designed to switch fixed-size information units called cells, which are used in ATM communications. Figure 4-3 illustrates an enterprise network comprised of multiple LANs interconnected across an ATM backbone. Figure 4-3 Multi-LAN Networks Can Use an ATM-Based Backbone When Switching Cells LAN switches are used to interconnect multiple LAN segments. LAN switching provides dedicated, collision-free communication between network devices, with support for multiple simultaneous conversations. LAN switches are designed to switch data frames at high speeds. Figure 4-4 illustrates a simple network in which a LAN switch interconnects a 10-Mbps and a 100-Mbps Ethernet LAN. Figure 4-4 A LAN Switch Can Link 10-Mbps and 100-Mbps Ethernet Segments there is no figures as noted above
What is dynamically selected by the source host when forwarding data?
Source Port
Which basic process is used to select the best path for forwarding data?
hz
Sophisticated networks generally use which of the following hardware devices to ease the flow of data packets throughout the network?
Modern networks used two devices for the data packets within the network will flow easily. The two devices are the routers and switches.
What is Multistage switch?
A multistage switch is a type of network switch that consists of multiple stages of switching elements, such as crossbars or banyan networks, connected together in a cascaded manner to enable switching of data between multiple input and output ports. This design allows for more efficient forwarding of data packets compared to single-stage switches.
What can bridges do that hubs and repeaters cannot do?
Bridges send information (data) to the specified destination, whereas hubs and repeaters do not.
