What is a Layer 2 network connection?
Layer 2, also known as the Data Link Layer, is the second level in the seven-layer OSI reference model for network protocol design. Layer2 is the network layer used to transfer data between adjacent network nodes in a wide area network or between nodes on the same local area network.
What are Layer 2 WAN technologies?
Layer 2 WAN supports an enterprise subscriber model in which the service provider is transparent and the enterprise implements all Layer 3 routing. This allows for flexibility in the WAN design and interconnection of the remote sites. Point-to-point service allows for the interconnection of two LANs.
What is the function of layer 2?
Layer 2 of The OSI Model: Data Link Layer provides the functional and procedural means to transfer data between network entities and to detect and possibly correct errors that may occur in the physical layer.
What is level2 connection?
‘Dial-up’ connection is also known as Level Two connection. This provides connection to Internet through a dial-up terminal connection. The computer, which provides Internet access is known as ‘Host’ and the computer that receives the access, is ‘Client’ or ‘Terminal’.
What is Layer 2 configuration?
You can configure Layer 2 switching ports as access or trunk ports. Trunks carry the traffic of multiple VLANs over a single link and allow you to extend VLANs across an entire network. All Layer 2 switching ports maintain MAC address tables.
Which of the following is a Layer 2 protocol?
Network Layer 2 protocols. LLDP is vendor neutral, and is commonly used as a component in network management and network monitoring applications. CDP is a Cisco proprietary protocol that support the IEEE 802.1ab version of LLDP, and is primarily used to share information between directly connected Cisco devices.
What are examples of WAN?
WAN-Wide Area Network Example
- The Internet is a WAN.
- A network of bank cash dispensers is a WAN.
- A school network is usually a LAN.
- LANs are often connected to WANs, for example a school network could be connected to the Internet.
- WANs can be connected together using the Internet, leased lines or satellite links.
What is an example of a Layer 2 device?
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. These addresses are attached to network interface cards and cannot be changed.
What is layer 2 and Layer 3 networks?
Generally speaking, Layer 2 is a broadcast Media Access Control (MAC) MAC level network, while Layer 3 is a segmented routing over internet protocol (IP) network.
What is layer 2 configuration?
What do you mean by Level One and Level Two connectivity?
Level 1 – Access through a gateway. Level 2 – Access via modem to host connected to network. Level 3 – Direct Internet Access.