- Layer solutions are an essential element in network virtualization. Here is a detailed explanation:
What is the 2nd layer?
In the computer network 2. Layer refers to the OSI model data link layer (L2). It works on the physical layer and provides errors without transferring reliable and quick data frames between network devices.
The L2 Protocol battery consists of two sub -layers: Mac (multimedia access control) and CSMA / CD (multiple / circular access reduction test). The Mac submaur is responsible for sending and receiving data frames at the level of the data communication layer, while the CSMA / CD subsidy provides error detection and correction mechanisms.
What are the 2nd layer solutions?
- Layer solutions are designed to improve the reliability, scalability and performance of the network, providing protection, dismissal and tolerance to additional breakdowns. These solutions usually include adding a new layer between the L2 protocol pile and the rest of the OSI model.
There are several types of layer solutions:
- Input relay : A special scheme that provides guaranteed flow and no errors.
- ATM (asynchronous transfer mode) : Switching technology that uses multiple shots to provide high -speed data.
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Sonet / SDH (Digital Hierarchy of Synchronous): A digital signal processing protocol used for long -term transmission.
Why do we need 2 layer solutions?
Networks for a variety of reasons are subject to failures, errors and losing packets, for example:
- Restrictions on Physical Media
- Network congestion
- Damaged or damaged devices
- Layer solutions help reduce these problems:
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Layout : Provide multiple data transmission routes, ensuring that the network remains operating even if the road is broken.
- Defect Tolerance : Automatic error detection and repair without human intervention.
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Improved reliability : Reduction of latency and losing packets.
Real world examples
Some joint 2. Layer solutions include:
- Frame Connections
(eg T1, E1) High Speed Network Connections
- Commutation Solutions (eg Cisco Catalyst Switches) to improve scalability and performance in data centers
- Router network with integrated switching capacity (eg Juniper Networks SRX series) to ensure layer protection and optimization.
In summary, layer solutions are designed to improve network reliability, scalability and performance by providing protection, dismissal and tolerance to additional defects. These solutions help to reduce the challenges related to network failures, errors and losing packets, ensuring that the networks work even under unfavorable conditions.